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Dos Santos MF, do Nascimento LM, da Paz CA, Câmara TM, Motomya YKM, da Cunha Ferreira R, da Silva Deiga Y, Monteiro E, Cantanhêde SM, Amado LL, Hamoy M. Behavioral and electrophysiological study in Colossoma macropomum treated with different concentrations of Nepeta cataria oil in an immersion bath revealed a therapeutic window for anesthesia. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:1651-1665. [PMID: 38801500 DOI: 10.1007/s10695-024-01361-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024]
Abstract
The purpose of this study was to characterize the activity of essential oils from Nepeta Cataria (EON) at concentrations of 125 μ L L-1, 150 μ L L-1, 175 μ L L-1, and 200 μ L L-1 on the behavior of loss of the posture reflex and recovery of the posture reflex and electrocardiographic activity and recording of the opercular beat of Colossoma macropomum during immersion bathing for a period of 5 min, in order to obtain a window for safe use during anesthesia. The fish (23.38 ± 3.5 g) were assigned to the following experiments: experiment 1 (latency to loss and recovery of the posture reflex): (a) 125 μ L L-1, (b) 150 μ L L-1, (c) 175 μ L L-1, and (d) 200 μ L L-1 (n = 9) per group. Experiment 2 (electrocardiographic and heartbeat recordings): (a) control group; (b) vehicle control group (2 ml of alcohol per liter of water), (c) 125 μ L L-1, (d) 150 μ L L-1, (e) 175 μ L L-1, and (f) 200 μ L L-1 (n = 9), per group. All the concentrations used showed efficacy in inducing loss of the posture reflex and reversibility with recovery of the posture reflex, but the electrocardiographic recordings indicated morphographic changes such as bradycardia during induction and p wave apiculation during recovery at the highest concentrations tested. In this way, we suggest a safe use window for short-term anesthesia with EON in the concentration range of 125 to 150 μ L L-1 for juvenile Colossoma macropomum.
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Affiliation(s)
- Murilo Farias Dos Santos
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil.
| | - Lorena Meirelis do Nascimento
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Clarissa Araújo da Paz
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Tays Mata Câmara
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Yan Kenzo Monteiro Motomya
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Rayllan da Cunha Ferreira
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Yris da Silva Deiga
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
| | - Erika Monteiro
- Laboratory of Ecotoxicology, Biological Institute, Federal University of Pará, Belém, PA, Brazil
| | | | - Lílian Lund Amado
- Laboratory of Ecotoxicology, Biological Institute, Federal University of Pará, Belém, PA, Brazil
| | - Moisés Hamoy
- Laboratory of Pharmacology and Toxicology of Natural Products, Biological Science Institute, Federal University of Pará, Belém, PA, Brazil
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Akrokoh J, Bediako JO, Fafanyo K, Musah-Yussif H, Asubonteng AK, Adjei HO, Ofori AGA, Skov PV, Obirikorang KA. Relatedness of hypoxia and hyperthermia tolerances in the Nile tilapia (Oreochromis niloticus) and their relationships with cardiac and gill traits. Comp Biochem Physiol A Mol Integr Physiol 2024; 294:111648. [PMID: 38643961 DOI: 10.1016/j.cbpa.2024.111648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 04/23/2024]
Abstract
In fish, thermal and hypoxia tolerances may be functionally related, as suggested by the oxygen- and capacity-limited thermal tolerance (OCLTT) concept, which explains performance failure at high temperatures due to limitations in oxygen delivery. In this study the interrelatedness of hyperthermia and hypoxia tolerances in the Nile tilapia (Oreochromis niloticus), and their links to cardiorespiratory traits were examined. Different groups of O. niloticus (n = 51) were subjected to hypoxia and hyperthermia challenges and the O2 tension for aquatic surface respiration (ASR pO2) and critical thermal maximum (CTmax) were assessed as measurement endpoints. Gill filament length, total filament number, ventricle mass, length and width were also measured. Tolerance to hypoxia, as evidenced by ASR pO2 thresholds of the individual fish, was highly variable and varied between 0.26 and 3.39 kPa. ASR events increased more profoundly as O2 tensions decreased below 2 kPa. The CTmax values recorded for the O. niloticus individuals ranged from 43.1 to 44.8 °C (Mean: 44.2 ± 0.4 °C). Remarkably, there was a highly significant correlation between ASR pO2 and CTmax in O. niloticus (r = -0.76, p < 0.0001) with ASR pO2 increasing linearly with decreasing CTmax. There were, however, no discernible relationships between the measured cardiorespiratory properties and hypoxia or hyperthermia tolerances. The strong relationship between hypoxia and hyperthermia tolerances in this study may be related to the ability of the cardiorespiratory system to provide oxygen to respiring tissues under thermal stress, and thus provides some support for the OCLTT concept in this species, at least at the level of the entire organism.
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Affiliation(s)
- Jesslyn Akrokoh
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana. https://twitter.com/@missakrokoh
| | - Jedida Osei Bediako
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kelvin Fafanyo
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Harriya Musah-Yussif
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Audrey Korsah Asubonteng
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Henry Owusu Adjei
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Peter Vilhelm Skov
- Technical University of Denmark, DTU Aqua, Section for Aquaculture, The North Sea Research Centre, DK-9850 Hirtshals, Denmark
| | - Kwasi Adu Obirikorang
- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
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Wind T, Ros A, Chucholl C, Roch S, Schumann M, Schulz C, Brinker A. Inland freshwater aquaculture in a warming world. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173275. [PMID: 38754498 DOI: 10.1016/j.scitotenv.2024.173275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Climate change potentially threatens the sustainable production of highly valued cold-water fish species in flow-through systems, such as salmonids. By analysing the relationship of water temperature to hydrological characteristics, air temperature, solar exposure, and precipitation, this study predicted temperature dynamics of five temperate cold-water aquaculture facilities under four projected climate change scenarios. Air temperature was found to be directly associated with facility site water temperature, and based on rational assumptions, two of the five facilities were predicted to face critical warming by mid-century. Extreme precipitation events induced acute short-term increases in water temperature of up to 5 °C. Significantly lower warming, roughly equal to the projected climate change-induced increase, was seen with artificial shading lowering temperature by 1 °C. Complementary niche modelling revealed that 37-77 % of current cold-water facilities will likely incur suboptimal climate conditions by the end of the century. Shading of raceways, more efficient water use, and disease management are proposed as key actions to preserve cold-water aquaculture.
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Affiliation(s)
- Tamara Wind
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany
| | - Albert Ros
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany
| | - Christoph Chucholl
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany
| | - Samuel Roch
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany
| | - Mark Schumann
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany
| | - Carsten Schulz
- Christian-Albrechts-University Kiel, Olshausenstraße 40, 24098 Kiel, Germany
| | - Alexander Brinker
- Fisheries Research Station of Baden-Wuerttemberg, Argenweg 50/1, 88085 Langenargen, Germany; University of Konstanz, Mainaustraße 252, 78464 Konstanz, Germany.
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Mao Y, Hong K, Li L, Nam IK, Kim SH, Choe SK. Mitochondrial Fission Is Involved in Heat Resistance in Zebrafish. Zebrafish 2024. [PMID: 39007173 DOI: 10.1089/zeb.2024.0128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
Global warming and extreme weather events pose a significant threat to global biodiversity, with rising water temperatures exerting a profound influence on fish conservation and fishery development. In this study, we used zebrafish as a model organism to explore the impact of a heat acclimation period on their survival rates. The results demonstrated that a 2-month heat acclimation period almost completely mitigated heat stress-induced mortality in zebrafish. Subsequent analysis of the surviving zebrafish revealed a predominance of hepatic mitochondria in a fission state. Remarkably, a short-term fasting regimen, which induced hepatic mitochondrial fission, mirrored the outcomes of the protective effect of heat acclimation and augmented animal survival under heat stress. Conversely, treatment with a mitochondrial fission inhibitor within the fasting group attenuated the elevated survival rate. Furthermore, zebrafish embryos subjected to brief heat acclimation also exhibited increased heat resistance, a trait diminished by a chemical intervention inhibiting mitochondrial fission. This suggests a shared mechanism for heat resistance between embryos and adult zebrafish. These findings underscore the potential use of inducing mitochondrial fission to enhance heat resistance in zebrafish, offering promise for fish biodiversity conservation in the face of global warming.
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Affiliation(s)
- Yousheng Mao
- Department of Medicine, Graduate School, Wonkwang University, Iksan, Republic of Korea
| | - KwangHeum Hong
- Department of Medicine, Graduate School, Wonkwang University, Iksan, Republic of Korea
- Sarcopenia Total Solution Center, Wonkwang University, Iksan, Republic of Korea
| | - Li Li
- Department of Medicine, Graduate School, Wonkwang University, Iksan, Republic of Korea
| | - In-Koo Nam
- Sarcopenia Total Solution Center, Wonkwang University, Iksan, Republic of Korea
| | - Seok-Hyung Kim
- Sarcopenia Total Solution Center, Wonkwang University, Iksan, Republic of Korea
| | - Seong-Kyu Choe
- Department of Medicine, Graduate School, Wonkwang University, Iksan, Republic of Korea
- Sarcopenia Total Solution Center, Wonkwang University, Iksan, Republic of Korea
- Department of Microbiology, Wonkwang University School of Medicine, Iksan, Republic of Korea
- Institute of Wonkwang Medical Science, Wonkwang University, Iksan, Republic of Korea
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Lin Z, Cai Z, Li L, Wei Y, Ling Q. c-Jun N-terminal kinase 1/P53 signaling mediates intrinsic apoptosis of largemouth bass (Micropterus salmoides) hepatocytes under heat stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174664. [PMID: 38997017 DOI: 10.1016/j.scitotenv.2024.174664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/20/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
The increasing frequency of high-temperature extremes threatens largemouth bass Micropterus salmoides, a significant fish for freshwater ecosystems and aquaculture. Our previous studies at the transcript level suggested that heat stress induces hepatic apoptosis in largemouth bass. In the current study, we sought to validate these findings and further investigate the role of the c-Jun N-terminal kinase (JNK)/P53 signaling in hepatic apoptosis under heat stress. First, heat treatments were conducted in vivo and in vitro under different temperatures: 28 °C, 32 °C, and 37 °C. In primary hepatocytes subjected to heat treatment, cell viability was evaluated via the Cell Counting Kit-8, while mitochondrial membrane potential and nuclear morphology were assessed through JC-1 and Hoechst 33258 staining, respectively. We observed reductions in both cell viability and mitochondrial membrane potential (ΔΨm), along with alterations in nuclear morphology, in primary hepatocytes exposed to heat stress at temperatures of 32 °C and 37 °C. Quantitative real-time PCR revealed significant alterations in the expression profiles of intrinsic apoptosis-related genes within liver tissues under heat stress. Immunohistochemistry analysis revealed that JNK1 signaling increased as the temperature increased, JNK2 expression increased only at 37 °C, and JNK3 expression did not change with temperature. We speculate that JNK1 and JNK2 have pro- and anti-apoptotic effects, respectively. Western blot analysis conducted on cultured hepatocytes further validated these findings. JNK inhibition reduced hepatocyte apoptosis, improved nuclear morphology, and maintained ΔΨm even after 37 °C treatment. These results not only confirm that heat stress led to intrinsic apoptosis of hepatocytes but also indicated that JNK1 could mediate P53 expression and activate caspase-dependent intrinsic apoptosis in largemouth bass hepatocytes under such conditions. This study illuminates the physiological responses of largemouth bass to acute heat stress, offering valuable insights into the potential impacts of climate change on freshwater fishes and the sustainability of aquaculture.
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Affiliation(s)
- Zijie Lin
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Zhiying Cai
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Lingling Li
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Yekai Wei
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China
| | - Qufei Ling
- School of Biology and Basic Medical Sciences, Suzhou Medical College of Soochow University, 215000, China.
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Deng D, Hu S, Lin Z, Geng J, Qian Z, Zhang K, Ning X, Cheng Y, Zhang C, Yin S. High temperature aggravated hypoxia-induced intestine toxicity on juvenile Chinese mitten crab (Eriocheir sinensis). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2024; 52:101288. [PMID: 39002349 DOI: 10.1016/j.cbd.2024.101288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 06/30/2024] [Accepted: 07/05/2024] [Indexed: 07/15/2024]
Abstract
High temperature and hypoxia in water due to global warming threaten the growth and development of aquatic animals. In natural or cultured environments, stress usually does not occur independently, whereas the synergistic effect of high temperature and hypoxia on Chinese mitten crab (Eriocheir sinensis) are rarely reported. In this study, 450 juvenile crabs were equally divided into control group (24 °C ± 0.5 °C, DO 6.8 ± 0.1 mg/L), hypoxia stress group (24 °C ± 0.5 °C, DO 1 ± 0.1 mg/L) and combined stress group (30 °C ± 0.5 °C, DO 1 ± 0.1 mg/L), and the intestinal health status, microbial diversity and metabolite profiles were evaluated for 24 h treatment. The results showed that hypoxia stress induced the expression level of pro-inflammatory related genes were significantly up-regulated in intestine of juvenile E. sinensis, and intestinal peritrophic membrane factor related genes were significantly down-regulated. High temperature further amplified the effects of hypoxia on pro-inflammatory and peritrophic membrane factor-related genes. Interesting, hypoxia stress induced a significant up-regulated of intestinal antioxidant-related genes, whereas high temperature reversed this trend. In addition, single stress or/and combined stress led to changes in intestinal microbiota diversity and abundance, and intestinal metabolite profiles. Compared with hypoxia stress, the synergistic effect of high temperature and hypoxia led to an increase in the abundance of pathogenic bacteria and a decrease in the abundance of probiotic bacteria. Moreover, intestinal metabolic pathways were significantly changed, especially amino acid metabolism and glycerophospholipid metabolism. Therefore, the results indicated that hypoxia stress could induce intestinal inflammatory response and oxidative stress, and lead to abnormal changes in intestinal microbiota and metabolic profiles, whereas high temperature further aggravate the toxic effects of hypoxia on the intestine. This study preliminarily revealed the synergistic toxic effects of high temperature and hypoxia on the intestine of juvenile E. sinensis.
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Affiliation(s)
- Dunqian Deng
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Shengyu Hu
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Ziqi Lin
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Jiayin Geng
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Ziang Qian
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Kai Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Xianhui Ning
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China
| | - Yongxu Cheng
- Key Laboratory of Integrated Rice-Fish Farming Ecosystem, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China
| | - Cong Zhang
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China; Key Laboratory of Integrated Rice-Fish Farming Ecosystem, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China.
| | - Shaowu Yin
- College of Marine Science and Engineering, Nanjing Normal University, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Nanjing 210023, China.
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de Luzinais VG, Gascuel D, Reygondeau G, Cheung WWL. Large potential impacts of marine heatwaves on ecosystem functioning. GLOBAL CHANGE BIOLOGY 2024; 30:e17437. [PMID: 39054881 DOI: 10.1111/gcb.17437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/27/2024]
Abstract
Ocean warming is driving significant changes in the structure and functioning of marine ecosystems, shifting species' biogeography and phenology, changing body size and biomass and altering the trophodynamics of the system. Particularly, extreme temperature events such as marine heatwaves (MHWs) have been increasing in intensity, duration and frequency. MHWs are causing large-scale impacts on marine ecosystems, such as coral bleaching, mass mortality of seagrass meadows and declines in fish stocks and other marine organisms in recent decades. In this study, we developed and applied a dynamic version of the EcoTroph trophodynamic modelling approach to study the cascading effects of individual MHW on marine ecosystem functioning. We simulated theoretical user-controlled ecosystems and explored the consequences of various assumptions of marine species mortality along the food web, associated with different MHW intensities. We show that an MHW can lead to a significant biomass reduction of all consumers, with the severity of the declines being dependent on species trophic levels (TLs) and biomes, in addition to the characteristics of MHWs. Biomass of higher TLs declines more than lower TLs under an MHW, leading to changes in ecosystem structure. While tropical ecosystems are projected to be sensitive to low-intensity MHWs, polar and temperate ecosystems are expected to be impacted by more intense MHWs. The estimated time to recover from MHW impacts is twice as long for polar ecosystems and one-third longer for temperate biomes compared with tropical biomes. This study highlights the importance of considering extreme weather events in assessing the effects of climate change on the structures and functions of marine ecosystems.
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Affiliation(s)
- Vianney Guibourd de Luzinais
- UMR Dynamics and Sustainability of Ecosystems: From Source to Sea (DECOD), Institut Agro, Ifremer, INRAE, Rennes, France
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Didier Gascuel
- UMR Dynamics and Sustainability of Ecosystems: From Source to Sea (DECOD), Institut Agro, Ifremer, INRAE, Rennes, France
| | - Gabriel Reygondeau
- Rosenstiel School of Marine, Atmospheric, and Earth Science, The University of Miami, Florida, USA
| | - William W L Cheung
- Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, British Columbia, Canada
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Liu Y, Liang Z, Li Y, Zhu W, Feng B, Xu W, Fu J, Wei P, Luo M, Dong Z. Integrated transcriptome and microRNA analysis reveals molecular responses to high-temperature stress in the liver of American shad (Alosa sapidissima). BMC Genomics 2024; 25:656. [PMID: 38956484 PMCID: PMC11218383 DOI: 10.1186/s12864-024-10567-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 06/26/2024] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Fish reproduction, development and growth are directly affected by temperature, investigating the regulatory mechanisms behind high temperature stress is helpful to construct a finer molecular network. In this study, we systematically analyzed the transcriptome and miRNA information of American shad (Alosa sapidissima) liver tissues at different cultivation temperatures of 24 ℃ (Low), 27 ℃ (Mid) and 30 ℃ (High) based on a high-throughput sequencing platform. RESULTS The results showed that there were 1594 differentially expressed genes (DEGs) and 660 differentially expressed miRNAs (DEMs) in the LowLi vs. MidLi comparison group, 473 DEGs and 84 DEMs in the MidLi vs. HighLi group, 914 DEGs and 442 DEMs in the LowLi vs. HighLi group. These included some important genes and miRNAs such as calr, hsp90b1, hsp70, ssa-miR-125a-3p, ssa-miR-92b-5p, dre-miR-15a-3p and novel-m1018-5p. The DEGs were mainly enriched in the protein folding, processing and export pathways of the endoplasmic reticulum; the target genes of the DEMs were mainly enriched in the focal adhesion pathway. Furthermore, the association analysis revealed that the key genes were mainly enriched in the metabolic pathway. Interestingly, we found a significant increase in the number of genes and miRNAs involved in the regulation of heat stress during the temperature change from 24 °C to 27 °C. In addition, we examined the tissue expression characteristics of some key genes and miRNAs by qPCR, and found that calr, hsp90b1 and dre-miR-125b-2-3p were significantly highly expressed in the liver at 27 ℃, while novel-m0481-5p, ssa-miR-125a-3p, ssa-miR-92b-5p, dre-miR-15a-3p and novel-m1018-5p had the highest expression in the heart at 30℃. Finally, the quantitative expression trends of 10 randomly selected DEGs and 10 DEMs were consistent with the sequencing data, indicating the reliability of the results. CONCLUSIONS In summary, this study provides some fundamental data for subsequent in-depth research into the molecular regulatory mechanisms of A. sapidissima response to heat stress, and for the selective breeding of high temperature tolerant varieties.
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Affiliation(s)
- Ying Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Zhengyuan Liang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Yulin Li
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Wenbin Zhu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Bingbing Feng
- Fisheries Technology Extension Center of Jiangsu Province, Nanjing, Jiangsu, China
| | - Wei Xu
- Fisheries Technology Extension Center of Jiangsu Province, Nanjing, Jiangsu, China
| | - Jianjun Fu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Panpan Wei
- Qinghai Provincial Key Laboratory of Breeding and Protection of Gymnocypris przewalskii, Rescue Center of Qinghai Lake Naked Carp, Xining, Qinghai, China
| | - Mingkun Luo
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China.
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
| | - Zaijie Dong
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China.
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.
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Hinz H, Terrados J, Moranta J, Reñones O, Ruiz-Frau A, Catalán IA. A risk-based approach to the analysis of potential climate change effects on fish communities associated to Posidonia oceanica in the Mediterranean. MARINE ENVIRONMENTAL RESEARCH 2024; 199:106618. [PMID: 38959782 DOI: 10.1016/j.marenvres.2024.106618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/07/2024] [Accepted: 06/19/2024] [Indexed: 07/05/2024]
Abstract
The Mediterranean is recognized as a climate change hotspot, with ongoing warming anticipated to impact its habitats and their associated fish fauna. Among these habitats, the seagrass Posidonia oceanica stands out as a foundational species, critical for the stability of coastal fish communities. However, our understanding of climate change consequences on P. oceanica associated fish fauna to date remains limited in part due to a lack of long-term data. This study aimed to highlight potential climate change risks to fish species associated with Posidonia, integrating data on species' thermal envelopes with their habitat and depth preferences into a climate change risk index. Specifically, 9 species, including three pipefish and several wrasse species of the genus Symphodus, emerged as being at higher potential risk from climatic change. A historical time series from Palma Bay (Balearic Islands, Spain), spanning 45 years and providing clear evidence of warming, was employed to evaluate trends in species abundance and occurrence in relation to their relative climate risk score. While certain high-risk species like Symphodus cinereus and Diplodus annularis showed an increase in abundance over time, others, such as the pipefish Syngnathus acus, Syngnathus typhle and Nerophis maculatus experienced declines. The absence of observed declines in some high-risk species could be attributed to several factors, such as acclimation, adaptation, or unmet response thresholds. However, this does not rule out the potential for future changes in these species. Factors such as increased nutrient influx due to growing human populations and changes in fishing regulations may also have contributed to the observed trends. These findings underscore the intricate interplay of environmental and anthropogenic factors and accentuate the pressing need for sustained, long-term data acquisition to fathom the implications of climate change on this highly important marine ecosystem.
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Affiliation(s)
- Hilmar Hinz
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), 07190, Esporles, Balearic Islands, Spain.
| | - Jorge Terrados
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), 07190, Esporles, Balearic Islands, Spain
| | - Joan Moranta
- Centre Oceanogràfic de Balears (COB, IEO-CSIC) Moll de Ponent, s/n, 07015, Palma, Balearic Islands, Spain
| | - Olga Reñones
- Centre Oceanogràfic de Balears (COB, IEO-CSIC) Moll de Ponent, s/n, 07015, Palma, Balearic Islands, Spain
| | - Ana Ruiz-Frau
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), 07190, Esporles, Balearic Islands, Spain
| | - Ignacio A Catalán
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), 07190, Esporles, Balearic Islands, Spain
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10
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Tiddy IC, Munson A, Cortese D, Webster MM, Killen SS. Impacts of climate-related stressors on social group cohesion and individual sociability in fish. Biol Rev Camb Philos Soc 2024. [PMID: 38941355 DOI: 10.1111/brv.13111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 05/30/2024] [Accepted: 06/04/2024] [Indexed: 06/30/2024]
Abstract
Group-living in animals comes with a number of benefits associated with predator avoidance, foraging, and reproduction. A large proportion of fish species display grouping behaviour. Fish may also be particularly vulnerable to climate-related stressors including thermal variation, hypoxia, and acidification. As climate-related stressors are expected to increase in magnitude and frequency, any effects on fish behaviour may be increased and affect the ability of fish species to cope with changing conditions. Here we conduct a systematic review of the effects of temperature, hypoxia, and acidification on individual sociability and group cohesion in shoaling and schooling fishes. Searches of the published and grey literature were carried out, and studies were included or excluded based on selection criteria. Data from studies were then included in a meta-analysis to examine broad patterns of effects of climate-related stressors in the literature. Evidence was found for a reduction in group cohesion at low oxygen levels, which was stronger in smaller groups. While several studies reported effects of temperature and acidification, there was no consistent effect of either stressor on sociability or cohesion. There was some evidence that marine fishes are more strongly negatively affected by acidification compared with freshwater species, but results are similarly inconsistent and more studies are required. Additional studies of two or more stressors in combination are also needed, although one study found reduced sociability following exposure to acidification and high temperatures. Overall, there is some evidence that hypoxia, and potentially other climate-related environmental changes, impact sociability and group cohesion in fishes. This may reduce survival and adaptability in shoaling and schooling species and have further ecological implications for aquatic systems. However, this synthesis mainly highlights the need for more empirical studies examining the effects of climate-related factors on social behaviour in fishes.
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Affiliation(s)
- Izzy C Tiddy
- School of Biodiversity, One Health, and Veterinary Medicine College of Biomedical and Life Sciences, University of Glasgow, 82 Hillhead St, Glasgow, G12 8QQ, UK
| | - Amelia Munson
- School of Biodiversity, One Health, and Veterinary Medicine College of Biomedical and Life Sciences, University of Glasgow, 82 Hillhead St, Glasgow, G12 8QQ, UK
- Department of Wildlife, Fish & Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Daphne Cortese
- School of Biodiversity, One Health, and Veterinary Medicine College of Biomedical and Life Sciences, University of Glasgow, 82 Hillhead St, Glasgow, G12 8QQ, UK
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, 34200, France
| | - Michael M Webster
- Centre for Biological Diversity, School of Biology, University of St Andrews, Harold Mitchell Building, Fife, KY16 9TS, UK
| | - Shaun S Killen
- School of Biodiversity, One Health, and Veterinary Medicine College of Biomedical and Life Sciences, University of Glasgow, 82 Hillhead St, Glasgow, G12 8QQ, UK
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11
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Coulon N, Pilet S, Lizé A, Lacoue-Labarthe T, Sturbois A, Toussaint A, Feunteun E, Carpentier A. Shark critical life stage vulnerability to monthly temperature variations under climate change. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106531. [PMID: 38696933 DOI: 10.1016/j.marenvres.2024.106531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 05/04/2024]
Abstract
In a 10-month experimental study, we assessed the combined impact of warming and acidification on critical life stages of small-spotted catshark (Scyliorhinus canicula). Using recently developed frameworks, we disentangled individual and group responses to two climate scenarios projected for 2100 (SSP2-4.5: Middle of the road and SSP5-8.5: Fossil-fueled Development). Seasonal temperature fluctuations revealed the acute vulnerability of embryos to summer temperatures, with hatching success ranging from 82% for the control and SSP2-4.5 treatments to only 11% for the SSP5-8.5 treatment. The death of embryos was preceded by distinct individual growth trajectories between the treatments, and also revealed inter-individual variations within treatments. Embryos with the lowest hatching success had lower yolk consumption rates, and growth rates associated with a lower energy assimilation, and almost all of them failed to transition to internal gills. Within 6 months after hatching, no additional mortality was observed due to cooler temperatures.
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Affiliation(s)
- Noémie Coulon
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) MNHN, CNRS, IRD, SU, UCN, UA, Station Marine de Dinard, Dinard, France.
| | - Stanislas Pilet
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) MNHN, CNRS, IRD, SU, UCN, UA, Station Marine de Dinard, Dinard, France
| | - Anne Lizé
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) MNHN, CNRS, IRD, SU, UCN, UA, Station Marine de Dinard, Dinard, France; School of Life Sciences, University of Liverpool, Liverpool, UK
| | - Thomas Lacoue-Labarthe
- Littoral, Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, La Rochelle, France
| | - Anthony Sturbois
- VivArmor Nature, Réserve Naturelle Nationale de la Baie de Saint-Brieuc, Laboratoire des Sciences de l'environnement Marin (LEMAR), UMR 6539, France
| | - Aurèle Toussaint
- Centre de Recherche sur la Biodiversité et l'Environnement (CRBE), UMR5300 - UPS-CNRS-IRD-INP, Université Paul-Sabatier - Toulouse 3, Toulouse, France
| | - Eric Feunteun
- Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) MNHN, CNRS, IRD, SU, UCN, UA, Station Marine de Dinard, Dinard, France; Centre de GéoEcologie Littorale (CGEL, EPHE-PSL), Dinard, France
| | - Alexandre Carpentier
- Université de Rennes, Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) MNHN, CNRS, IRD, SU, UCN, UA, Campus de Beaulieu, Rennes, France
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12
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Xie X, Wang Y, Ma F, Ma R, Du L, Chen X. High-Temperature-Induced Differential Expression of miRNA Mediates Liver Inflammatory Response in Tsinling Lenok Trout (Brachymystax lenok tsinlingensis). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:526-538. [PMID: 38647909 DOI: 10.1007/s10126-024-10315-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 04/10/2024] [Indexed: 04/25/2024]
Abstract
High-temperature stress poses a significant environmental challenge for aquatic organisms, including tsinling lenok trout (Brachymystax lenok tsinlingensis). This study aimed to investigate the role of microRNAs (miRNAs) in inducing liver inflammation in tsinling lenok trout under high-temperature stress. Tsinling lenok trout were exposed to high-temperature conditions (24 °C) for 8 h, and liver samples were collected for analysis. Through small RNA sequencing, we identified differentially expressed miRNAs in the liver of high-temperature-stressed tsinling lenok trout compared to the control group (maintained at 16 °C). Several miRNAs, including novel-m0105-5p and miR-8159-x, showed significant changes in expression levels. Additionally, we conducted bioinformatics analysis to explore the potential target genes of these differentially expressed miRNAs. Our findings revealed that these miRNA target genes are involved in inflammatory response pathways, such as NFKB1 and MAP3K5. The downregulation of novel-m0105-5p and miR-8159-x in the liver of high-temperature-stressed tsinling lenok trout suggests their role in regulating liver inflammatory responses. To validate this, we performed a dual-luciferase reporter assay to confirm the regulatory relationship between miRNAs and target genes. Our results demonstrated that novel-m0105-5p and miR-8159-x enhance the inflammatory response of hepatocytes by promoting the expression of NFKB1 and MAP3K5, respectively. In conclusion, our study provides evidence that high-temperature stress induces liver inflammation in tsinling lenok trout through dysregulation of miRNAs. Understanding the molecular mechanisms underlying the inflammatory response in tsinling lenok trout under high-temperature stress is crucial for developing strategies to mitigate the negative impacts of environmental stressors on fish health and aquaculture production.
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Affiliation(s)
- Xiaobin Xie
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China
| | - Yibo Wang
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China
| | - Fang Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China.
| | - Ruilin Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China
| | - Leqiang Du
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China
| | - Xin Chen
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou District, Tianshui, 741000, Gansu Province, People's Republic of China
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13
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Kelly ERM, Trujillo JE, Setiawan A, Pether S, Burritt D, Allan BJM. Investigating the metabolic and oxidative stress induced by biofouled microplastics exposure in Seriola lalandi (yellowtail kingfish). MARINE POLLUTION BULLETIN 2024; 203:116438. [PMID: 38749154 DOI: 10.1016/j.marpolbul.2024.116438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/14/2024] [Accepted: 04/28/2024] [Indexed: 06/06/2024]
Abstract
Microorganisms quickly colonise microplastics entering the ocean, forming a biofilm that, if ingested, is consumed with the microplastics. Past research often neglects to expose fish to biofouled microplastics, opting only for clean microplastics despite the low likelihood that fish will encounter clean microplastics. Here, we investigate the physiological impacts of biofouled polyethylene microplastic (300-335 μm) exposure in juvenile fish. Intermittent flow respirometry, antioxidant enzyme activity, and lipid peroxidation were investigated after fish were exposed to clean, biofouled, or no microplastic beads. Fish exposed to biofouled microplastics had a wider aerobic scope than those exposed to clean microplastics while antioxidant enzyme and lipid peroxidation levels were higher in clean microplastics. Clean microplastic exposure indicated higher fitness costs, potentially due to a nutritional advantage of the biofilm or varying bioavailability. These findings highlight the importance of replicating natural factors in exposure experiments when predicting the impacts of increasing pollutants in marine systems.
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Affiliation(s)
| | - José E Trujillo
- Department of Marine Science, University of Otago, New Zealand
| | | | | | - David Burritt
- Department of Botany, University of Otago, New Zealand
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14
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Mi H, Zhang T, Lu Y, Chen J, Li X. Effect of temperature fluctuation on the physiological stress response of hybrid pearl gentian grouper during waterless keeping alive. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:927-939. [PMID: 38305929 DOI: 10.1007/s10695-024-01307-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
Temperature fluctuations are inevitable and have an important impact on the survival of fish during transportation. Therefore, the effect of temperature fluctuation (15 ± 1 °C, 15 ± 2 °C, 15 ± 3 °C) on the muscle quality, physiological, and immune function of hybrid pearl gentian grouper before waterless keeping alive, during keeping alive (0 h, 3 h, 6 h, 9 h, 12 h), and after revival for 12 h was investigated. The plasma glucose concentration of grouper gradually decreased to 0.645 ± 0.007 mg/mL, 0.657 ± 0.006 mg/mL, and 0.677 ± 0.004 mg/mL after keeping alive for 12 h under different temperature fluctuations of 15 ± 1 °C, 15 ± 2 °C, and 15 ± 3 °C, respectively. The cortisol concentration and lysozyme activity of pearl gentian grouper significantly increased (P < 0.05) during the keeping alive period. The results suggested that fish bodies would produce acute stress response, strengthen immune defense ability, and quickly consume a lot of energy to adapt to the low-temperature anhydrous environment. In all treatment groups, the activities of plasma alanine transaminase (ALT) and aspartate aminotransferase (AST) and the content of creatinine gradually increased with the prolongation of the survival time. The hardness and springiness of muscle decreased from 5965.99 ± 20.15 and 0.90 ± 0.00 to 3490.69 ± 27.59 and 0.42 ± 0.01, respectively. In the meanwhile, the change of glycogen and lactic acid content was opposite, indicating that temperature fluctuation harmed the liver, kidney function, and muscle quality. In the later stage of keeping alive, the superoxide dismutase (SOD) and catalase (CAT) activities decreased, especially in the temperature fluctuation group of ±3 °C (125.99 ± 5.48 U/mgprot, 44.21 ± 0.63 U/mgprot), leading to an imbalance of fish immunity. In summary, higher temperature fluctuation would influence the physiological function and immune defense ability and decrease the quality of pearl gentian grouper.
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Affiliation(s)
- Hongbo Mi
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou, 121013, People's Republic of China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, People's Republic of China
| | - Ting Zhang
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou, 121013, People's Republic of China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, People's Republic of China
| | - Yue Lu
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, People's Republic of China
- Institute of Ocean Research, Bohai University, Jinzhou, 121013, People's Republic of China
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, People's Republic of China
| | - Jingxin Chen
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, People's Republic of China.
- Institute of Ocean Research, Bohai University, Jinzhou, 121013, People's Republic of China.
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, People's Republic of China.
| | - Xuepeng Li
- College of Food Science and Technology, Bohai University, Jinzhou, 121013, People's Republic of China.
- Institute of Ocean Research, Bohai University, Jinzhou, 121013, People's Republic of China.
- National and Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, People's Republic of China.
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15
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Mallett MC, Thiem JD, Butler GL, Kennard MJ. A systematic review of approaches to assess fish health responses to anthropogenic threats in freshwater ecosystems. CONSERVATION PHYSIOLOGY 2024; 12:coae022. [PMID: 38706739 PMCID: PMC11069195 DOI: 10.1093/conphys/coae022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/04/2024] [Accepted: 04/05/2024] [Indexed: 05/07/2024]
Abstract
Anthropogenic threats such as water infrastructure, land-use changes, overexploitation of fishes and other biological resources, invasive species and climate change present formidable challenges to freshwater biodiversity. Historically, management of fish and fishery species has largely been based on studies of population- and community-level dynamics; however, the emerging field of conservation physiology promotes the assessment of individual fish health as a key management tool. Fish health is highly sensitive to environmental disturbances and is also a fundamental driver of fitness, with implications for population dynamics such as recruitment and resilience. However, the mechanistic links between particular anthropogenic disturbances and changes in fish health, or impact pathways, are diverse and complex. The diversity of ways in which fish health can be measured also presents a challenge for researchers deciding on methods to employ in studies seeking to understand the impact of these threats. In this review, we aim to provide an understanding of the pathway through which anthropogenic threats in freshwater ecosystems impact fish health and the ways in which fish health components impacted by anthropogenic threats can be assessed. We employ a quantitative systematic approach to a corpus of papers related to fish health in freshwater and utilize a framework that summarizes the impact pathway of anthropogenic threats through environmental alterations and impact mechanisms that cause a response in fish health. We found that land-use changes were the most prolific anthropogenic threat, with a range of different health metrics being suitable for assessing the impact of this threat. Almost all anthropogenic threats impacted fish health through two or more impact pathways. A robust understanding of the impact pathways of anthropogenic threats and the fish health metrics that are sensitive to these threats is crucial for fisheries managers seeking to undertake targeted management of freshwater ecosystems.
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Affiliation(s)
- Maxwell C Mallett
- Australian Rivers Institute, School of Environment and Science, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia
| | - Jason D Thiem
- New South Wales Department of Primary Industries, Narrandera Fisheries Centre, 70 Buckingbong Road, Narrandera, NSW 2700, Australia
| | - Gavin L Butler
- New South Wales Department of Primary Industries, Grafton Fisheries Centre,16 Experiment Farm Road, Trenayr, NSW 2460, Australia
| | - Mark J Kennard
- Australian Rivers Institute, School of Environment and Science, Griffith University, 170 Kessels Road, Nathan, QLD 4111, Australia
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16
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Zheng J, Li S, Zheng X. Living in a dynamic environment: The effects of multi-ways temperature variation on embryo and newborn juveniles of a shallow-water octopus (Amphioctopus fangsiao). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171510. [PMID: 38453076 DOI: 10.1016/j.scitotenv.2024.171510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/09/2024]
Abstract
Shallow waters are characterized by fluctuating environmental conditions, modulating marine life cycles and biological phenomena. Multiple variations in water temperature could affect eggs and embryos during spawning events of many marine invertebrate species, yet most of the findings on embryonic development in invertebrates come from experiments based on the constant temperature. In this study, to examine the effects of temperature variation on octopus embryos, Amphioctopus fangsiao, a common shallow-water octopus along the coast of China, was exposed to the constant temperature (18 °C, in situ temperature of the seawater in Lianyungang), ramping temperatures (from 18 to 24 °C), diel oscillating temperatures (18 °C and 20 °C for 12 h each day), and acute increasing temperatures (the temperature increased sharply from 18 °C to 24 °C at embryonic development stage XIX) for 47 days (from embryogenesis to settlement). The results demonstrated that the temperature variations accelerated the development time of A. fangsiao embryos. Temperature fluctuations could cause embryonic oxidative damage and disorder of glycolipid metabolism, thereby affecting the growth performance of embryos and the survival rate of hatchings. Through transcriptome sequencing, the mechanistic adaption of the embryo to environmental temperature variations was revealed. The pathways involved in the TCA cycle, DNA replication and repair, protein synthesis, cell signaling, and nervous system damage repair were significantly enriched, indicating that the embryo could improve heat tolerance to thermal stress by regulating gene expression. Moreover, acute warming temperatures posed the most detrimental effects on A. fangsiao embryos, which could cause embryos to hatch prematurely from the vegetal pole, further reducing the survival of hatchings. Meanwhile, the diel oscillating temperature was observed to affect the normal morphology of the embryo, resulting in embryo deformities. Thus, the constant temperature is critical for balanced growth and defense status in octopuses by maintaining metabolism homeostasis. For the first time, this study evaluates the effects of multiple temperature fluctuations on embryos of A. fangsiao, providing new insights into the physiological changes and molecular responses of cephalopod embryos following dynamic temperature stress.
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Affiliation(s)
- Jian Zheng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Shuwen Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Xiaodong Zheng
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China; Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao 266003, China; Key Laboratory of Evolution & Marine Biodiversity, Ministry of Education, Ocean University of China, Qingdao 266003, China.
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17
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Saygin H, Tilkili B, Kayisoglu P, Baysal A. Oxidative stress, biofilm-formation and activity responses of P. aeruginosa to microplastic-treated sediments: Effect of temperature and sediment type. ENVIRONMENTAL RESEARCH 2024; 248:118349. [PMID: 38309565 DOI: 10.1016/j.envres.2024.118349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/16/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Climate change and plastic pollution are the big environmental problems that the environment and humanity have faced in the past and will face in many decades to come. Sediments are affected by many pollutants and conditions, and the behaviors of microorganisms in environment may be influenced due to changes in sediments. Therefore, the current study aimed to explore the differential effects of various microplastics and temperature on different sediments through the metabolic and oxidative responses of gram-negative Pseudomonas aeruginosa. The sediments collected from various fields including beaches, deep-sea discharge, and marine industrial areas. Each sediment was extracted and then treated with various microplastics under different temperature (-18, +4, +20 and 35 °C) for seven days. Then microplastics were removed from the suspension and microplastic-exposed sediment samples were incubated with Pseudomonas aeruginosa to test bacterial activity, biofilm, and oxidative characteristics. The results showed that both the activity and the biofilm formation of Pseudomonas aeruginosa increased with the temperature of microplastic treatment in the experimental setups at the rates between an average of 2-39 % and 5-27 %, respectively. The highest levels of bacterial activity and biofilm formation were mainly observed in the beach area (average rate +25 %) and marine industrial (average rate +19 %) sediments with microplastic contamination, respectively. Moreover, oxidative characteristics significantly linked the bacterial activities and biofilm formation. The oxidative indicators of Pseudomonas aeruginosa showed that catalase and glutathione reductase were more influenced by microplastic contamination of various sediments than superoxide dismutase activities. For instance, catalase and glutathione reductase activities were changed between -37 and +169 % and +137 to +144 %, respectively; however, the superoxide dismutase increased at a rate between +1 and + 21 %. This study confirmed that global warming as a consequence of climate change might influence the effect of microplastic on sediments regarding bacterial biochemical responses and oxidation characteristics.
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Affiliation(s)
- Hasan Saygin
- Application and Research Center for Advanced Studies, Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey
| | - Batuhan Tilkili
- Health Services Vocational School of Higher Education, Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey
| | - Pinar Kayisoglu
- Deptment of Environmental Engineering, Faculty of Civil Engineering, Istanbul Technical University, Maslak, Sariyer, Istanbul, Turkey
| | - Asli Baysal
- Deptment of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Sariyer, Istanbul, Turkey.
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18
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Saygin H, Tilkili B, Karniyarik S, Baysal A. Culture dependent analysis of bacterial activity, biofilm-formation and oxidative stress of seawater with the contamination of microplastics under climate change consideration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171103. [PMID: 38402970 DOI: 10.1016/j.scitotenv.2024.171103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/03/2024] [Accepted: 02/18/2024] [Indexed: 02/27/2024]
Abstract
Temperature changes due to climate change and microplastic contamination are worldwide concerns, creating various problems in the marine environment. Therefore, this study was carried out to discover the impact of different temperatures of seawater exposed to different types of plastic materials on culture dependent bacterial responses and oxidative characteristics. Seawater was exposed to microplastics obtained from various plastic materials at different temperature (-18, +4, +20, and +35 °C) for seven days. Then microplastics were removed from the suspension and microplastic-exposed seawater samples were analyzed for bacterial activity, biofilm formation and oxidative characteristics (antioxidant, catalase, glutathione, and superoxide dismutase) using Gram-negative Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus. The results showed that the activity and biofilm formation of Pseudomonas aeruginosa and Staphylococcus aureus were affected through oxidative stress by catalase, glutathione, and superoxide dismutase due to the microplastic deformation by temperature changes. This study confirms that temperature changes as a result of climate change might influence microplastic degradation and their contamination impact in seawater in terms of bacterial metabolic and oxidation reactions.
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Affiliation(s)
- Hasan Saygin
- Application and Research Center for Advanced Studies, Istanbul Aydin University, Sefakoy Kucukcekmece, 34295 Istanbul, Turkey
| | - Batuhan Tilkili
- Health Services Vocational School of Higher Education, Istanbul Aydin University, Sefakoy Kucukcekmece, 34295 Istanbul, Turkey
| | - Sinem Karniyarik
- Department of Environmental Engineering, Faculty of Civil Engineering, Istanbul Technical University, Maslak, Sariyer, Istanbul, Turkey
| | - Asli Baysal
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Sariyer, Istanbul, Turkey.
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19
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De Bonville J, Côté A, Binning SA. Thermal tolerance and survival are modulated by a natural gradient of infection in differentially acclimated hosts. CONSERVATION PHYSIOLOGY 2024; 12:coae015. [PMID: 38629117 PMCID: PMC11020239 DOI: 10.1093/conphys/coae015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/03/2024] [Accepted: 02/27/2024] [Indexed: 04/19/2024]
Abstract
Wild ectotherms are exposed to multiple stressors, including parasites, that can affect their responses to environmental change. Simultaneously, unprecedented warm temperatures are being recorded worldwide, increasing both the average and maximum temperatures experienced in nature. Understanding how ectotherms, such as fishes, will react to the combined stress of parasites and higher average temperatures can help predict the impact of extreme events such as heat waves on populations. The critical thermal method (CTM), which assesses upper (CTmax) and lower (CTmin) thermal tolerance, is often used in acclimated ectotherms to help predict their tolerance to various temperature scenarios. Despite the widespread use of the CTM across taxa, few studies have characterized the response of naturally infected fish to extreme temperature events or how acute thermal stress affects subsequent survival. We acclimated naturally infected pumpkinseed sunfish (Lepomis gibbosus) to four ecologically relevant temperatures (10, 15, 20 and 25°C) and one future warming scenario (30°C) for 3 weeks before measuring CTmax and CTmin. We also assessed individual survival the week following CTmax. Parasites were counted and identified following trials to relate infection intensity to thermal tolerance and survival. Interestingly, trematode parasites causing black spot disease were negatively related to CTmax, suggesting that heavily infected fish are less tolerant to acute warming. Moreover, fish infected with yellow grub parasites showed decreased survival in the days following CTmax implying that the infection load has negative survival consequences on sunfish during extreme warming events. Our findings indicate that, when combined, parasite infection and high prolonged average temperatures can affect fish thermal tolerance and survival, emphasizing the need to better understand the concomitant effects of stressors on health outcomes in wild populations. This is especially true given that some parasite species are expected to thrive in warming waters making host fish species especially at risk.
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Affiliation(s)
- Jérémy De Bonville
- Groupe de Recherche Interuniversitaire en Limnologie et en Environnement Aquatique (GRIL), Département de Sciences Biologiques, Université de Montréal, 1375 Av.Théres̀e-Lavoie-Roux, Montréal, QC, H2V 0B3, Canada
| | - Ariane Côté
- Groupe de Recherche Interuniversitaire en Limnologie et en Environnement Aquatique (GRIL), Département de Sciences Biologiques, Université de Montréal, 1375 Av.Théres̀e-Lavoie-Roux, Montréal, QC, H2V 0B3, Canada
| | - Sandra A Binning
- Groupe de Recherche Interuniversitaire en Limnologie et en Environnement Aquatique (GRIL), Département de Sciences Biologiques, Université de Montréal, 1375 Av.Théres̀e-Lavoie-Roux, Montréal, QC, H2V 0B3, Canada
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20
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Yang YL, Zeng WH, Peng Y, Zuo SY, Fu YQ, Xiao YM, Huang WL, Wen ZY, Hu W, Yang YY, Huang XF. Characterization of three lamp genes from largemouth bass ( Micropterus salmoides): molecular cloning, expression patterns, and their transcriptional levels in response to fast and refeeding strategy. Front Physiol 2024; 15:1386413. [PMID: 38645688 PMCID: PMC11026864 DOI: 10.3389/fphys.2024.1386413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/14/2024] [Indexed: 04/23/2024] Open
Abstract
Lysosomes-associated membrane proteins (LAMPs), a family of glycosylated proteins and major constituents of the lysosomal membranes, play a dominant role in various cellular processes, including phagocytosis, autophagy and immunity in mammals. However, their roles in aquatic species remain poorly known. In the present study, three lamp genes were cloned and characterized from Micropterus salmoides. Subsequently, their transcriptional levels in response to different nutritional status were investigated. The full-length coding sequences of lamp1, lamp2 and lamp3 were 1251bp, 1224bp and 771bp, encoding 416, 407 and 256 amino acids, respectively. Multiple sequence alignment showed that LAMP1-3 were highly conserved among the different fish species, respectively. 3-D structure prediction, genomic survey, and phylogenetic analysis were further confirmed that these genes are widely existed in vertebrates. The mRNA expression of the three genes was ubiquitously expressed in all selected tissues, including liver, brain, gill, heart, muscle, spleen, kidney, stomach, adipose and intestine, lamp1 shows highly transcript levels in brain and muscle, lamp2 displays highly expression level in heart, muscle and spleen, but lamp3 shows highly transcript level in spleen, liver and kidney. To analyze the function of the three genes under starvation stress in largemouth bass, three experimental treatment groups (fasted group and refeeding group, control group) were established in the current study. The results indicated that the expression of lamp1 was significant induced after starvation, and then returned to normal levels after refeeding in the liver. The expression of lamp2 and lamp3 exhibited the same trend in the liver. In addition, in the spleen and the kidney, the transcript level of lamp1 and lamp2 was remarkably increased in the fasted treatment group and slightly decreased in the refed treatment group, respectively. Collectively, our findings suggest that three lamp genes may have differential function in the immune and energetic organism in largemouth bass, which is helpful in understanding roles of lamps in aquatic species.
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Affiliation(s)
- Yan-Lin Yang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Wan-Hong Zeng
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Yong Peng
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Shi-Yu Zuo
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Yuan-Qi Fu
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Yi-Ming Xiao
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Wen-Li Huang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Zheng-Yong Wen
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, China
| | - Wei Hu
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, China
| | - Yu-Ying Yang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Xiao-Feng Huang
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- School of Animal Science, Yangtze University, Jingzhou, China
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21
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Hua QQH, Kültz D, Wiltshire K, Doubleday ZA, Gillanders BM. Projected ocean temperatures impair key proteins used in vision of octopus hatchlings. GLOBAL CHANGE BIOLOGY 2024; 30:e17255. [PMID: 38572638 DOI: 10.1111/gcb.17255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 04/05/2024]
Abstract
Global warming is one of the most significant and widespread effects of climate change. While early life stages are particularly vulnerable to increasing temperatures, little is known about the molecular processes that underpin their capacity to adapt to temperature change during early development. Using a quantitative proteomics approach, we investigated the effects of thermal stress on octopus embryos. We exposed Octopus berrima embryos to different temperature treatments (control 19°C, current summer temperature 22°C, or future projected summer temperature 25°C) until hatching. By comparing their protein expression levels, we found that future projected temperatures significantly reduced levels of key eye proteins such as S-crystallin and retinol dehydrogenase 12, suggesting the embryonic octopuses had impaired vision at elevated temperature. We also found that this was coupled with a cellular stress response that included a significant elevation of proteins involved in molecular chaperoning and redox regulation. Energy resources were also redirected away from non-essential processes such as growth and digestion. These findings, taken together with the high embryonic mortality observed under the highest temperature, identify critical physiological functions of embryonic octopuses that may be impaired under future warming conditions. Our findings demonstrate the severity of the thermal impacts on the early life stages of octopuses as demonstrated by quantitative proteome changes that affect vision, protein chaperoning, redox regulation and energy metabolism as critical physiological functions that underlie the responses to thermal stress.
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Affiliation(s)
- Qiaz Q H Hua
- Environment Institute, School of Biological Sciences, The University of Adelaide, South Australia, Australia
| | - Dietmar Kültz
- Department of Animal Sciences and Genome Centre, University of California, Davis, USA
| | - Kathryn Wiltshire
- Environment Institute, School of Biological Sciences, The University of Adelaide, South Australia, Australia
- South Australian Research and Development Institute, West Beach, South Australia
| | - Zoe A Doubleday
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Bronwyn M Gillanders
- Environment Institute, School of Biological Sciences, The University of Adelaide, South Australia, Australia
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22
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Houdelet C, Blondeau-Bidet E, Mialhe X, Lallement S, Devilliers S, Falguière JC, Geffroy B. Plasma cortisol and production of miRNAs in red drum (Sciaenops ocellatus) exposed to three distinct challenges. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:757-766. [PMID: 38265685 DOI: 10.1007/s10695-024-01304-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/16/2024] [Indexed: 01/25/2024]
Abstract
The red drum Sciaenops ocellatus is a marine fish species of high commercial interest. Despite improvements in current aquaculture practices, there are still concerns about the impact of daily manipulations regarding fish welfare. To investigate how does fish respond to various challenges, S. ocellatus juveniles were submitted to two acute challenges, namely a confinement stress and a cold-temperature shock, as well as a chronic stress challenge consisting of 18 days of repetitive challenge events. The level of cortisol produced by individuals was used as a measure of activation hypothalamic-pituitary-interrenal (HPI) axis. A significant increase in cortisol levels was detected only after the confinement stress. Interestingly, the fish exposed to a chronic stress for 18 days exhibited cortisol levels significantly lower than those of non-challenged fish. The small RNA-sequencing conducted for the chronic stress experiment only allowed us to identify two plasmatic microRNAs more abundant in non-challenged fish (miR-205-1-5p and let-7b-5p) compared to challenged fish. The miR-205-1-5p was of particular interest since it was already detected in previous studies on other fish species. In silico analysis allowed to predict potentially highly conserved mRNA targets of this specific miRNA, among which is tnfrsfa that plays a key role in the secondary stress response.
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Affiliation(s)
- Camille Houdelet
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Palavas-Les-Flots, France.
| | | | - Xavier Mialhe
- MGX-Montpellier GenomiX, Institut de Génomique Fonctionnelle, Montpellier, France
| | | | - Samson Devilliers
- Délégation IFREMER Des Antilles, Unité Biodiversité Et Environnement, 79, Route de Pointe-Fort, 97231, Le Robert, Martinique, France
| | - Jean-Claude Falguière
- Délégation IFREMER Des Antilles, Unité Biodiversité Et Environnement, 79, Route de Pointe-Fort, 97231, Le Robert, Martinique, France
| | - Benjamin Geffroy
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
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23
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Ren X, Zhao J, Hu J. Non-concordant epigenetic and transcriptional responses to acute thermal stress in western mosquitofish (Gambusia affinis). Mol Ecol 2024:e17332. [PMID: 38529738 DOI: 10.1111/mec.17332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 02/28/2024] [Accepted: 03/18/2024] [Indexed: 03/27/2024]
Abstract
Climate change is intensifying the frequency and severity of extreme temperatures. Understanding the molecular mechanisms underlying the ability to cope with acute thermal stress is key for predicting species' responses to extreme temperature events. While many studies have focused on the individual roles of gene expression, post-transcriptional processes and epigenetic modifications in response to acute thermal stress, the relative contribution of these molecular mechanisms remains unclear. The wide range of thermal limits of western mosquitofish (Gambusia affinis) provides an opportunity to explore this interplay. Here, we quantified changes in gene expression, alternative splicing, DNA methylation and microRNA (miRNA) expression in muscle tissue dissected from mosquitofish immediately after reaching high (CTmax) or low thermal limit (CTmin). Although the numbers of genes showing expression and splicing changes in response to acute temperature stress were small, we found a possibly larger and non-redundant role of splicing compared to gene expression, with more genes being differentially spliced (DSGs) than differentially expressed (DEGs), and little overlap between DSGs and DEGs. We also identified a small proportion of CpGs showing significant methylation change (i.e. differentially methylated cytosines, DMCs) in fish at thermal limits; however, there was no overlap between DEGs and genes annotated with DMCs in both CTmax and CTmin experiments. The weak interplay between epigenetic modifications and gene expression was further supported by our discoveries of no differentially expressed miRNAs. These findings provide novel insights into the relative role of different molecular mechanisms underlying immediate responses to extreme temperatures and demonstrate non-concordant responses of epigenetic and transcriptional mechanisms to acute temperature stress.
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Affiliation(s)
- Xingyue Ren
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Center for Evolutionary Biology, School of Life Sciences, Fudan University, Shanghai, P. R. China
| | - Junjie Zhao
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Center for Evolutionary Biology, School of Life Sciences, Fudan University, Shanghai, P. R. China
| | - Juntao Hu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Center for Evolutionary Biology, School of Life Sciences, Fudan University, Shanghai, P. R. China
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24
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Jeong H, Byeon E, Lee JS, Kim HS, Sayed AEDH, Bo J, Wang M, Wang DZ, Park HG, Lee JS. Single and combined effects of increased temperature and methylmercury on different stages of the marine rotifer Brachionus plicatilis. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133448. [PMID: 38244454 DOI: 10.1016/j.jhazmat.2024.133448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/24/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024]
Abstract
Rapid, anthropogenic activity-induced global warming is a severe problem that not only raises water temperatures but also shifts aquatic environments by increasing the bioavailability of heavy metals (HMs), with potentially complicated effects on aquatic organisms, including small aquatic invertebrates. For this paper, we investigated the combined effects of temperature (23 and 28 °C) and methylmercury (MeHg) by measuring physiological changes, bioaccumulation, oxidative stress, antioxidants, and the mitogen-activated protein kinase signaling pathway in the marine rotifer Brachionus plicatilis. High temperature and MeHg adversely affected the survival rate, lifespan, and population of rotifers, and bioaccumulation, oxidative stress, and biochemical reactions depended on the developmental stage, with neonates showing higher susceptibility than adults. These findings demonstrate that increased temperature enhances potentially toxic effects from MeHg, and susceptibility differs with the developmental stage. This study provides a comprehensive understanding of the combined effects of elevated temperature and MeHg on rotifers. ENVIRONMENTAL IMPLICATION: Methylmercury (MeHg) is a widespread and harmful heavy metal that can induce lethal effects on aquatic organisms in even trace amounts. The toxicity of metals can vary depending on various environmental conditions. In particular, rising temperatures are considered a major factor affecting bioavailability and toxicity by changing the sensitivity of organisms. However, there are few studies on the combinational effects of high temperatures and MeHg on aquatic animals, especially invertebrates. Our research would contribute to understanding the actual responses of aquatic organisms to complex aquatic environments.
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Affiliation(s)
- Haksoo Jeong
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Eunjin Byeon
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Jin-Sol Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Alaa El-Din H Sayed
- Department of Zoology, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
| | - Minghua Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Da-Zhi Wang
- State Key Laboratory of Marine Environmental Science, College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Heum Gi Park
- Department of Marine Ecology and Environment, College of Life Sciences, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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Luo M, Zhu W, Liang Z, Feng B, Xie X, Li Y, Liu Y, Shi X, Fu J, Miao L, Dong Z. High-temperature stress response: Insights into the molecular regulation of American shad (Alosa sapidissima) using a multi-omics approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170329. [PMID: 38280591 DOI: 10.1016/j.scitotenv.2024.170329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 01/29/2024]
Abstract
High temperature is an important abiotic stressor that limits the survival and growth of aquatic organisms. American shad (Alosa sapidissima), a migratory fish suitable for culturing at low temperatures, is known for its delicious taste and thus has high economic value. Studies concerning changes in A. sapidissima under high temperature are limited, especially at the gene expression and protein levels. High-temperature stress significantly reduced the survival rates and increased vacuolar degeneration and inflammatory infiltration in the gills and liver. High temperature increased the activities of SOD, CAT, and cortisol, with a trend of initial increase followed by decreases in MDA, ALP, and LDH, and irregular changes in T-AOC and Na-K-ATPase. Comprehensive analysis of the transcriptome, proteome, and metabolome of gills from fish treated with different culture temperatures (24, 27, and 30 °C) revealed that differentially expressed genes, proteins, and metabolites were highly enriched in pathways involved in protein digestion and absorption, protein processing in endoplasmic reticulum, metabolic pathways, and purine metabolism. Gene expression and protein profiles indicated that genes coding for antioxidants (i.e., cat and alpl) and members of the heat shock protein (i.e., HSP70, HSP90AA1, and HSP5) were significantly upregulated. Additionally, a conjoint analysis revealed that several key enzymes, including nucleoside diphosphate kinase 2, adenosine deaminase, and ectonucleoside triphosphate diphosphohydrolase 5/6 were altered, thereby affecting the metabolism of guanosine, guanine, and inosine. An interaction network further confirmed that levels of the essential amino acids DL-arginine and L-histidine were significantly reduced, and corticosterone levels were significantly increased, suggesting that A. sapidissima may be more dependent on amino acids for energy in vivo. Overall, this work suggests that living in a high-temperature environment leads to differential defense responses in fishes. The results provide novel perspectives for studying the molecular basis of adaptation to climate change in A. sapidissima and for genetic selection.
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Affiliation(s)
- Mingkun Luo
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Wuxi, Jiangsu, China
| | - Wenbin Zhu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Wuxi, Jiangsu, China
| | - Zhengyuan Liang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Bingbing Feng
- Fisheries Technology Extension Center of Jiangsu Province, Nanjing, Jiangsu, China
| | - Xudong Xie
- Zhenjiang Xinrun Agriculture Development Co., Ltd, Zhenjiang, Jiangsu, China
| | - Yulin Li
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Ying Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Xiulan Shi
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - Jianjun Fu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Wuxi, Jiangsu, China
| | - Linghong Miao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Wuxi, Jiangsu, China
| | - Zaijie Dong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Ministry of Agriculture and Rural Affairs, Wuxi, Jiangsu, China; Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China.
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26
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Perry WB. They grow up so fast, especially when global warming is concerned. JOURNAL OF FISH BIOLOGY 2024; 104:507. [PMID: 38488478 DOI: 10.1111/jfb.15723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
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27
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Mohamad S, Rahmah S, Zainuddin RA, A Thallib Y, Razali RS, Jalilah M, Abd Ghaffar M, Lim LS, Chang YM, Qun Liang L, Das SK, Chen YM, Liew HJ. Hoven's carp Leptobarbus hoevenii strategized metabolism needs to cope with changing environment. Heliyon 2024; 10:e25559. [PMID: 38404778 PMCID: PMC10884815 DOI: 10.1016/j.heliyon.2024.e25559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/27/2024] Open
Abstract
Current water warming and freshwater acidification undoubtedly affect the life of aquatic animals especially ammonotelic teleost by altering their physiological responses. The effect of temperature (28 °C vs 32 °C) and pH (7 vs. 5) on the metabolic compromising strategies of Hoven's carp (Leptobarbus hoevenii) was investigated in this study. Fishes were conditioned to (i) 28 °C + pH 7 (N28°C); (ii) 32 °C + pH 7 (N32°C); (iii) 28 °C + pH 5 (L28°C) and (iv) 32 °C + pH 5 (L32°C) for 20 days followed by osmorespiration assay. Results showed that feeding performance of Hoven's carp was significantly depressed when exposed to low pH conditions (L28°C and L32°C). However, by exposed Hoven's carp to L32°C induced high metabolic oxygen intake and ammonia excretion to about 2x-folds higher compared to the control group. As for energy mobilization, Hoven's carp mobilized liver and muscle protein under L28°C condition. Whereas under high temperature in both pH, Hoven's carp had the tendency to reserve energy in both of liver and muscle. The findings of this study revealed that Hoven's carp is sensitive to lower water pH and high temperature, thereby they remodeled their physiological needs to cope with the environmental changes condition.
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Affiliation(s)
- Suhaini Mohamad
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Sharifah Rahmah
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
- Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Rabiatul Adawiyyah Zainuddin
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Yusnita A Thallib
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Ros Suhaida Razali
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Mohamad Jalilah
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Mazlan Abd Ghaffar
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
| | - Leong-Seng Lim
- Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Yu Mei Chang
- Heilongjiang Province's Key Laboratory of Fish Stress Resistance Breeding and Germplasm Characteristics on Special Habitats, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Science, Harbin, China
| | - Li Qun Liang
- Heilongjiang Province's Key Laboratory of Fish Stress Resistance Breeding and Germplasm Characteristics on Special Habitats, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Science, Harbin, China
| | - Simon Kumar Das
- Department of Earth Sciences and Environment, Faculty of Science and Technology, National University of Malaysia, 43600, UKM Bangi, Selangor, Malaysia
- Marine Ecosystem Research Centre, Faculty of Science and Technology, National University of Malaysia, 43600, UKM Bangi, Selangor, Malaysia
| | - Young-Mao Chen
- Marine Biotechnology, College of Life Sciences, National Taiwan Ocean University, Keelung, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, Taiwan
| | - Hon Jung Liew
- Higher Institution Center of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
- Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia
- Heilongjiang Province's Key Laboratory of Fish Stress Resistance Breeding and Germplasm Characteristics on Special Habitats, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Science, Harbin, China
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28
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Li H, Yu H, Zhang X, Huang W, Zhang C, Wang C, Gao Q, Dong S. Temperature acclimation improves high temperature tolerance of rainbow trout (Oncorhynchus mykiss) by improving mitochondrial quality and inhibiting apoptosis in liver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169452. [PMID: 38135090 DOI: 10.1016/j.scitotenv.2023.169452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/16/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Global warming is threatening the survival and growth of cold-water fish, and the methods to improve the high-temperature adaptability of cold-water fish need to be explored urgently. This study aims to explore the mechanism of improving high temperature tolerance of rainbow trout by temperature acclimation (TA). Rainbow trout were acclimated by two modes at 22 °C, including fluctuating TA (FA) and constant TA (CA), and thereafter subjected to heat stress (HS) at 25 °C. Results showed that TA markedly increased the critical temperature maximum (CTmax) of rainbow trout. Secondly, the levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in serum and malondialdehyde (MDA) in liver of CA + HS group significantly decreased compared to those in HS group without TA, indicating the reduction of liver injury by CA. Moreover, HS significantly induced ROS production and reduced mitochondrial membrane potential (MMP) in rainbow trout liver, but TA reduced the levels of ROS and increased the MMP in liver of rainbow trout after HS, indicating the reduced oxidative stress and mitochondrial damage. Furthermore, TA up-regulated the expression of genes related to mitochondrial autophagy, fusion, fission and biogenesis, as well as the expression of marker proteins of autophagy (LC3II) and mitophagy (Parkin) in the liver, so as to maintain mitochondrial homeostasis. Moreover, TA also inhibited the occurrence of apoptosis (decrease in bax/bcl-2), which may be owing to the reduced ROS and mitochondrial damage by TA. Interestingly, CA significantly up-regulated the genes expression of methyltransferase in the liver, which may inhibit the genes or transcription factors related to oxidative stress and apoptosis by DNA methylation. In conclusion, TA increased the upper limit of heat tolerance of rainbow trout by improving mitochondrial quality and inhibiting apoptosis in liver. This study will provide an effective solution to the risk of high temperature in cold-water fish culture.
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Affiliation(s)
- Hao Li
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China
| | - Haibo Yu
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China.
| | - Xiaotian Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China
| | - Wenhao Huang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China
| | - Cheng Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China
| | - Chi Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712700, China
| | - Qinfeng Gao
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao 266100, China
| | - Shuanglin Dong
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao 266100, China
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Wang L, Jiang Y, Fang L, Guan C, Xu Y. Heat-shock protein 90 alleviates oxidative stress and reduces apoptosis in liver of Seriola aureovittata (yellowtail kingfish) under high-temperature stress. Comp Biochem Physiol B Biochem Mol Biol 2024; 270:110927. [PMID: 38040327 DOI: 10.1016/j.cbpb.2023.110927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023]
Abstract
Hsp90s are molecular chaperones that enhance fish tolerance to high-temperature stress. However, the function of Hsp90s in Seriola aureovittata (yellowtail kingfish) under high-temperature stress remains largely unknown. Here, two Hsp90 isoforms were identified in S. aureovittata by bioinformatics analysis: SaHsp90α and SaHsp90β. The coding sequence of SaHsp90α was 2193-bp long and encoded a polypeptide of 730 amino acids; SaHsp90β was 2178-bp long and encoded a polypeptide of 725 amino acids. SaHsp90α and SaHsp90β both contained a HATPase domain and a HSP90 domain. Their transcripts were detected in all examined S. aureovittata tissues, with relatively high levels in the gonads, head kidney, and intestine. During high-temperature stress at 28 °C, the expression levels of SaHsp90α and SaHsp90β transcripts were significantly increased in liver. After simultaneously knocking down the expression of the SaHsp90s, there was a significant decrease in liver superoxide dismutase (SOD) activity and a remarkable increase of malondialdehyde content in liver after high-temperature stress. The expression levels of the key caspase family genes caspase-3 and caspase-7 were also significantly upregulated by high-temperature stress in SaHsp90-knockdown liver. TUNEL labeling demonstrated that the number of apoptotic cells significantly increased in the SaHsp90-knockdown group when high-temperature treatment lasted for 48 h. Protein-protein docking analysis predicted that SaHsp90α and SaHsp90β can bind to S. aureovittata SOD and survivin, which are key proteins for maintenance of redox homeostasis and inhibition of apoptosis. These findings demonstrate that SaHsp90α and SaHsp90β play a crucial role in resistance to high-temperature stress by regulating redox homeostasis and apoptosis in yellowtail kingfish.
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Affiliation(s)
- Lin Wang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Joint Laboratory for Deep Blue Fishery Engineering, Qingdao, Shandong 266071, China
| | - Yan Jiang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Joint Laboratory for Deep Blue Fishery Engineering, Qingdao, Shandong 266071, China
| | - Lu Fang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Changtao Guan
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Joint Laboratory for Deep Blue Fishery Engineering, Qingdao, Shandong 266071, China
| | - Yongjiang Xu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Joint Laboratory for Deep Blue Fishery Engineering, Qingdao, Shandong 266071, China.
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Resende AC, Pereira DMC. IBRtools: An R package for calculating integrated biomarker indexes. Ecol Evol 2024; 14:e10864. [PMID: 38304267 PMCID: PMC10834099 DOI: 10.1002/ece3.10864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 09/14/2023] [Accepted: 01/16/2024] [Indexed: 02/03/2024] Open
Abstract
Multibiomarker studies are useful to evaluate the early warning signs of environmental degradation, and their unified responses are often assessed through two common indexes, Integrated Biomarker Response (IBR) and Integrated Biological Responses version 2 (IBRv2). The R package IBRtools allows users to calculate both IBR and IBRv2 while simultaneously incorporating all the biomarkers under evaluation. The package includes functions for calculating the indexes IBR and IBRv2 and obtaining their standardized values, as well a function for radar chart creation and three example datasets. Here we describe the main algorithms involved in IBR and IBRv2 calculations, a description of the novel package and illustrate a workflow using data examples available on the package to guide the user on how to accurately acquire the values for either the IBR index or the IBRv2 index. The IBRtools package provides a user-friendly platform for R users to obtain IBR index and IBRv2 values, making it straightforward even for large datasets.
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Affiliation(s)
- Anna Carolina Resende
- Marine Ecology and Ecosystem Modelling Lab, School of Biological SciencesVictoria University of WellingtonWellingtonNew Zealand
| | - Diego Mauro Carneiro Pereira
- Carl Peter von Dietrich Glycobiology Laboratory, Biochemistry DepartmentFederal University of São PauloSão PauloBrazil
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Zymaroieva A, Bondarev D, Kunakh O, Svenning JC, Zhukov O. Young-of-the-year fish as bioindicators of eutrophication and temperature regime of water bodies. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:161. [PMID: 38231372 DOI: 10.1007/s10661-024-12313-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/05/2024] [Indexed: 01/18/2024]
Abstract
Young-of-the-year fish communities are widely used as bioindicators of various environmental disturbances. This study was conducted from 1997 to 2015 and aims to develop fish trait-based indices of changes in the temperature regime and eutrophication of water bodies in the Dnipro River basin. We identified fish traits that significantly correlate with both temperature and chlorophyll-a concentration optimum: reproduction habitat, oxygen tolerance, and toxicity tolerance. Compared to other ecological groups, lithophilic species exhibited the lowest degree of thermal and eutrophication optimum, indicating this species' greater vulnerability to environmental alteration. Fish species that are intolerant to water quality and low oxygen concentration were the most sensitive to changes in temperature regime and eutrophication level. Salinity preferences and water quality tolerance emerged as reliable predictors of temperature optimum. Freshwater fish had an average temperature optimum that was 4.5% higher than that of freshwater-brackish and freshwater-brackish-marine fish. Species tolerance to the temperature factors and nutrient loads correlated only with rheophily, with rheophilic species having an average 13.8% higher temperature tolerance than other fish species and a 10.4% higher chlorophyll-a concentration tolerance. The fish temperature index increased over time during the study period in all the studied water bodies, consistent with ongoing warming affecting all sites. In contrast, the Fish Eutrophication Index showed greater temporal heterogeneity in studied water bodies, indicating various adaptative potentials of fish communities to eutrophication. These indices can be relevant for assessing disturbed situations caused by changes in climatic and anthropogenic impacts on water bodies.
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Affiliation(s)
- Anastasiia Zymaroieva
- Polissia National University, Stary Boulevard 7, Zhytomyr, 10008, Ukraine.
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO), Department of Biology, Aarhus University, C, DK-8000, Aarhus, Denmark.
| | - Dmytro Bondarev
- "Dnipro-Orylskiy" Nature Reserve, Obukhovka, Dnipropetrovsk region, 52030, Ukraine
| | - Olga Kunakh
- Oles Gonchar Dnipro National University, Gagarin av., 72, 49000, Dnipro, Ukraine
| | - Jens-Christian Svenning
- Center for Ecological Dynamics in a Novel Biosphere (ECONOVO), Department of Biology, Aarhus University, C, DK-8000, Aarhus, Denmark
| | - Olexander Zhukov
- Bogdan Khmelnytskyi Melitopol State Pedagogical University, Hetmanska st., 20, Melitopol, 72318, Ukraine
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Carrillo-Longoria JA, Gaylord G, Andrews L, Powell M. Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles. TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY 2024; 153:3-22. [PMID: 38854661 PMCID: PMC11156260 DOI: 10.1002/tafs.10453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/15/2023] [Indexed: 06/11/2024]
Abstract
Arctic Grayling Thymallus arcticus are Holarctically distributed, with a single native population in the conterminous United States occurring in the Big Hole River, Montana, where water temperatures can fluctuate throughout the year from 8 to 18 °C. A gradual increase in mean water temperature has been reported in this river over the past 20 years due to riparian habitat changes and climate change effects. We hypothesized that exposing Arctic Grayling to higher temperatures would result in lower survival, decreased growth, and increased stress responses. Over a 144-day trial, Arctic Grayling juveniles were subjected to water temperatures ranging from 8-26 °C to measure the effects on growth, survival, gene expression and antioxidant enzyme activity. Fish growth increased with increasing water temperature up to 18 °C, beyond which survival was reduced. Fish did not survive at temperatures above 22 °C. In response to temperatures above 16 °C, a 3-fold and 1.5-fold increase in gene expression was observed for superoxide dismutase (SOD) and glutathione peroxidase (GPx), respectively, but no changes were seen in the ratio of Heat Shock Protein 70 (HSP70) and heat shock protein 90 (HSP90) expression. Enzyme activities of SOD and GPx also rose at temperatures above 16 °C, indicating heightened oxidative stress. Catalase (CAT) gene expression and enzyme activity decreased with rising temperatures, suggesting a preference for the GPx pathway, as GPx could also be providing help with lipid peroxidation. An increase of Thiobarbituric acid reactive substances (TBARS) was also recorded, which corresponded with rising temperatures. Our findings thus underscore the vulnerability of Arctic Grayling to minor changes in water temperature. Further increases in mean water temperature could significantly compromise survival of Arctic Grayling in the Big Hole River.
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Affiliation(s)
- Javier-Alonso Carrillo-Longoria
- Aquaculture Research Institute, University of Idaho, Hagerman Fish Culture Experiment Station, 3059F National Fish Hatchery Rd, Hagerman, ID 83332, USA
| | - Gibson Gaylord
- U.S. Fish and Wildlife Service, Bozeman Fish Technology Center, Bozeman, MT, USA
| | - Lukas Andrews
- Idaho State University, 921 S. 8th Ave, Pocatello, ID 83209
| | - Madison Powell
- Aquaculture Research Institute, University of Idaho, Hagerman Fish Culture Experiment Station, 3059F National Fish Hatchery Rd, Hagerman, ID 83332, USA
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Lee JW, Balasubramanian B. Impacts of Temperature on the Growth, Feed Utilization, Stress, and Hemato-Immune Responses of Cherry Salmon ( Oncorhynchus masou). Animals (Basel) 2023; 13:3870. [PMID: 38136907 PMCID: PMC10740505 DOI: 10.3390/ani13243870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/07/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Cherry salmon (Oncorhynchus masou) hold commercial value in aquaculture, and there is a need for controlled laboratory studies to isolate the specific effects of temperature on their growth, feeding, and well-being. We examined the effects of different temperatures (10 °C, 14 °C, 18 °C, and 22 °C) on juvenile cherry salmon (average mass 29.1 g) in triplicate tanks per treatment over eight weeks. The key parameters assessed included growth rate, feed efficiency, stress response, and hemato-immune responses. Our objectives were to determine the most and less favorable temperatures among the four designated temperatures and to assess the adverse effects associated with these less favorable temperatures. The results showed that body weight, growth rates, feed intake, and feed efficiency were significantly higher at 10 °C and 14 °C compared to 18 °C and 22 °C. Reduced appetite and feeding response were observed at 22 °C. Red blood cell parameters were significantly lower at 22 °C. At 10 °C, the results showed significantly increased plasma cortisol levels, gill Na+/K+-ATPase activity, body silvering, and decreased condition factors, suggesting potential smoltification. The potential smoltification decreased with increasing temperatures and disappeared at 22 °C. Furthermore, the plasma lysozyme concentrations significantly increased at 18 °C and 22 °C. In conclusion, our study identifies 10 °C and 14 °C as the temperatures most conducive to growth and feed performance in juvenile cherry salmon under these experimental conditions. However, temperatures of 22 °C or higher should be avoided to prevent compromised feeding, reduced health, disturbed immune responses, impaired growth, and feed performance.
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Affiliation(s)
- Jang-Won Lee
- Department of Integrative Biological Sciences and Industry, College of Life Science, Sejong University, Seoul 05006, Republic of Korea
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Wang Y, Shen J, Li X, Lang H, Zhang L, Fang H, Yu Y. Higher temperature and daily fluctuations aggravate clothianidin toxicity towards Limnodrilus hoffmeisteri. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166655. [PMID: 37647951 DOI: 10.1016/j.scitotenv.2023.166655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/21/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023]
Abstract
In nature, aquatic organisms may suffer from chemical pollution, together with thermal stress resulted from global warming. However, limited information is available on the combined effects of pesticide with climate change on aquatic organisms. In this study, the acute toxicity of clothianidin to Limnodrilus hoffmeisteri as well as its effect on the induction of oxidative stress under both constant temperature and daily temperature fluctuation (DTF) regimes was investigated. Results showed that clothianidin exhibited the minimal toxicity to L. hoffmeisteri at 25 °C, which was magnified by both increased or decreased temperatures and 10 °C DTF. At different temperatures (15 °C, 25 °C and 35 °C), clothianidin exposure led to the elevated reactive oxygen species (ROS) levels and activated the antioxidant enzymes to resist against the oxidative stress. However, the antioxidant response induced by clothianidin was overwhelmed at high temperature as evidenced by decreased glutathione (GSH) content. Significant elevation of catalase (CAT) and peroxidase (POD) activities but depletion of GSH was also observed in worms treated with clothianidin under DTF after 24 h. The results indicated that high temperature and DTF could aggravate the clothianidin-induced oxidative stress. Moreover, the critical thermal maximum (CTmax) of the worms decreased with the increasing clothianidin concentrations, suggesting that exposure to clothianidin could reduce the heat tolerance of L. hoffmeisteri. Our work highlights the crucial importance to integrate temperature changes into risk assessment of pesticides under global warming.
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Affiliation(s)
- Yingnan Wang
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jiatao Shen
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xin Li
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Hongbin Lang
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Luqing Zhang
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Hua Fang
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yunlong Yu
- Institute of Pesticide and Environmental Toxicology, the Key Laboratory of Molecular Biology of Crop Pathogens and Insects, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou 310058, China.
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Alfonso S, Mente E, Fiocchi E, Manfrin A, Dimitroglou A, Papaharisis L, Barkas D, Toomey L, Boscarato M, Losasso C, Peruzzo A, Stefani A, Zupa W, Spedicato MT, Nengas I, Lembo G, Carbonara P. Growth performance, gut microbiota composition, health and welfare of European sea bass (Dicentrarchus labrax) fed an environmentally and economically sustainable low marine protein diet in sea cages. Sci Rep 2023; 13:21269. [PMID: 38042956 PMCID: PMC10693626 DOI: 10.1038/s41598-023-48533-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/27/2023] [Indexed: 12/04/2023] Open
Abstract
The large use of fish meal/fish oil in carnivorous fish feeds is the main concern regarding environmental sustainability of aquaculture. Here, we evaluated the effects of an innovative diet, designed to be (1) environmentally sustainable by lowering the marine protein content while being (2) cost effective by using sustainable alternative raw materials with acceptable cost and produced on an industrial scale, on growth performance, gut microbiota composition, health and welfare of European sea bass (Dicentrarchus labrax), a key species of the Mediterranean marine aquaculture, reared in sea cages. Results show that the specific growth rate of fish fed the low marine protein diet was significantly lower than those fed conventional diet (0.67% vs 0.69%). Fatty acid profile of fillets from fish fed a low marine protein diet presented significant lower n-6 and higher n-3 content when compared to conventional ones. Then, a significant increase in the abundance of Vibrio and reduction of Photobacterium were found in the gut of fish fed with the low marine protein diet but effects on sea bass health needs further investigation. Finally, no major health and welfare alterations for fish fed the low marine protein diet were observed, combined with a potential slight benefit related to humoral immunity. Overall, these results suggest that despite the low marine protein diet moderately affects growth performance, it nevertheless may enhance environmental and economic sustainability of the sea bass aquaculture.
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Affiliation(s)
| | - Elena Mente
- Laboratory of Ichthyology-Culture and Pathology of Aquatic Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Eleonora Fiocchi
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Amedeo Manfrin
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Arkadios Dimitroglou
- Laboratory of Applied Hydrobiology, Department of Animal Science, Agricultural University of Athens, 11855, Athens, Greece
| | | | - Dimitris Barkas
- Department of Research and Development, AVRAMAR S.A., 19002, Paiania, Greece
| | | | - Marilena Boscarato
- National Reference Laboratory for Fish, Mollusc and Crustacean Diseases, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Carmen Losasso
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Arianna Peruzzo
- Laboratory of Microbial Ecology and Genomics, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | - Annalisa Stefani
- Laboratory Medicine Service, Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Italy
| | | | | | - Ioannis Nengas
- Hellenic Centre for Marine Research (HCMR), Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), 19013, Anavyssos, Greece
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Khieokhajonkhet A, Phoprakot M, Aeksiri N, Kaneko G, Phromkunthong W. Effects of thermal stress responses in goldfish (Carassius auratus): growth performance, total carotenoids and coloration, hematology, liver histology, and critical thermal maximum. FISH PHYSIOLOGY AND BIOCHEMISTRY 2023; 49:1391-1407. [PMID: 37987934 DOI: 10.1007/s10695-023-01263-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023]
Abstract
The present study aimed to investigate the effect of thermal stress on growth, feed utilization, coloration, hematology, liver histology, and critical thermal maximum (CTmax) in goldfish (Carassius auratus) cultured at three different acclimation temperatures including 27 °C, 30 °C, and 34 °C for 10 weeks. Goldfish were assigned randomly to tanks with a quadruplicate setup, accommodating 20 fish per tank. The result showed that fish acclimated to different temperatures did not significantly differ in weight gain (WG) and specific growth rate (SGR). However, increasing temperature significantly decreased feed efficiency ratio (FER), protein efficiency ratio (PER), and protein productive value (PPV), but significantly increased feed conversion ratio (FCR) (P < 0.05). The coloration parameters significantly decreased by high temperature in the trunk region with increasing temperature (L* and a* at week 5; L*, a*, and b* at week 10; P < 0.05). Total carotenoid contents in serum, fin, muscle, and skin also significantly decreased with increasing temperature (P < 0.05). Total protein, albumin, and globulin levels exhibited a notable decrease, while the albumin: globulin ratio showed a slight insignificant increase, with increasing temperature. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), total cholesterol, and triglycerides significantly increased with increasing temperature (P < 0.05). While, high-density lipoprotein cholesterol (HDL-c) decreased linearly (P < 0.05). Glucose and cortisol levels linearly increased with increasing temperature, the highest levels being observed in the 34 °C group. Liver histology showed swollen hepatocytes, nuclei displacement, and infiltration of inflammation in fish cultured at 34 °C. Goldfish acclimated to 34 °C displayed a higher CTmax of 43.83 °C compared to other groups. The present study showed that temperature should be kept below 34 °C for goldfish culture to prevent high FCR, fading coloration, and liver damages.
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Affiliation(s)
- Anurak Khieokhajonkhet
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, 99 M. 1, T. Thapo, A. Muang, Phitsanulok, 65000, Thailand.
| | - Marisa Phoprakot
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, 99 M. 1, T. Thapo, A. Muang, Phitsanulok, 65000, Thailand
| | - Niran Aeksiri
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, 99 M. 1, T. Thapo, A. Muang, Phitsanulok, 65000, Thailand
| | - Gen Kaneko
- College of Natural and Applied Science, University of Houston-Victoria, 3007 N. Ben Wilson, Victoria, TX, 77901, USA
| | - Wutiporn Phromkunthong
- Kidchakan Supamattaya Aquatic Animal Health Research Center, Department of Aquatic Science, Faculty of Natural Resources, Prince of Songkla University, Songkhla, 90112, Thailand
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Elgendy MY, Ali SE, Abbas WT, Algammal AM, Abdelsalam M. The role of marine pollution on the emergence of fish bacterial diseases. CHEMOSPHERE 2023; 344:140366. [PMID: 37806325 DOI: 10.1016/j.chemosphere.2023.140366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
Marine pollution and bacterial disease outbreaks are two closely related dilemmas that impact marine fish production from fisheries and mariculture. Oil, heavy metals, agrochemicals, sewage, medical wastes, plastics, algal blooms, atmospheric pollutants, mariculture-related pollutants, as well as thermal and noise pollution are the most threatening marine pollutants. The release of these pollutants into the marine aquatic environment leads to significant ecological degradation and a range of non-infectious disorders in fish. Marine pollutants trigger numerous fish bacterial diseases by increasing microbial multiplication in the aquatic environment and suppressing fish immune defense mechanisms. The greater part of these microorganisms is naturally occurring in the aquatic environment. Most disease outbreaks are caused by opportunistic bacterial agents that attack stressed fish. Some infections are more serious and occur in the absence of environmental stressors. Gram-negative bacteria are the most frequent causes of these epizootics, while gram-positive bacterial agents rank second on the critical pathogens list. Vibrio spp., Photobacterium damselae subsp. Piscicida, Tenacibaculum maritimum, Edwardsiella spp., Streptococcus spp., Renibacterium salmoninarum, Pseudomonas spp., Aeromonas spp., and Mycobacterium spp. Are the most dangerous pathogens that attack fish in polluted marine aquatic environments. Effective management strategies and stringent regulations are required to prevent or mitigate the impacts of marine pollutants on aquatic animal health. This review will increase stakeholder awareness about marine pollutants and their impacts on aquatic animal health. It will support competent authorities in developing effective management strategies to mitigate marine pollution, promote the sustainability of commercial marine fisheries, and protect aquatic animal health.
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Affiliation(s)
- Mamdouh Y Elgendy
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Shimaa E Ali
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt; WorldFish, Abbassa, Sharkia, Egypt
| | - Wafaa T Abbas
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Abdelazeem M Algammal
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohamed Abdelsalam
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
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Li L, Liu Z, Zhao G, Quan J, Sun J, Lu J. Nano-selenium Antagonizes Heat Stress-Induced Apoptosis of Rainbow Trout (Oncorhynchus mykiss) Hepatocytes by Activating the PI3K/AKT Pathway. Biol Trace Elem Res 2023; 201:5805-5815. [PMID: 36973607 DOI: 10.1007/s12011-023-03637-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
The cold-water fish rainbow trout (Oncorhynchus mykiss) shows poor resistance to heat, which is the main factor restricting their survival and yield. With the advancement of nanotechnology, nano-selenium (nano-Se) has emerged as a key nano-trace element, showing unique advantages, including high biological activity and low toxicity, for studying the response of animals to adverse environmental conditions. However, little is still known regarding the potential protective mechanisms of nano-Se against heat stress-induced cellular damage. Herein, we aimed to investigate the mechanism underlying the antagonistic effects of nano-Se on heat stress. Four groups were assessed: CG18 (0 μg/mL nano-Se, 18 °C), Se18 (5.0 μg/mL nano-Se, 18 °C), CG24 (0 μg/mL nano-Se, incubated at 18 °C for 24 h and then transferred to 24 °C culture), and Se24 (5.0 μg/mL nano-Se, incubated at 18 °C for 24 h and then transferred to 24 °C culture). We found that after heat treatment (CG24 group), T-AOC, GPx, and CAT activities in rainbow trout hepatocytes showed a decrease of 36%, 33%, and 19%, respectively, while ROS and MDA levels showed an increase of 67% and 93%, respectively (P < 0.05). Meanwhile, the mRNA levels of the apoptosis-related genes caspase3, caspase9, Cyt-c, Bax, and Bax/Bcl-2 in the CG24 group were 41%, 47%, 285%, 65%, and 151% higher than those in the CG18 group, respectively, while those of PI3K and AKT were 31% and 17% lower, respectively (P < 0.05). Besides, flow cytometry analysis showed an increase in the level of apoptotic cells after heat exposure. More importantly, we observed that nano-Se cotreatment (Se24 group) remarkably attenuated heat stress-induced effects (P < 0.05). We conclude that heat stress induces oxidative stress and apoptosis in rainbow trout hepatocytes. Nano-Se ameliorates heat stress-induced apoptosis by activating the PI3K/AKT pathway. Our results provide a new perspective to improve our understanding of the ability of nano-Se to confer heat stress resistance.
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Affiliation(s)
- Lanlan Li
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China
| | - Zhe Liu
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China.
| | - Guiyan Zhao
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China
| | - Jinqiang Quan
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China
| | - Jun Sun
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China
| | - Junhao Lu
- College of Animal Science & Technology, Gansu Agricultural University, No. 1 Yingmen Village, Anning District, Lanzhou, 730070, Gansu Province, China
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Alak G, Özgeriş FB, Uçar A, Parlak V, Kocaman EM, Özcan S, Atamanalp M. Effect of climate change on hematotoxicity/hepatoxicity oxidative stress, Oncorhynchus mykiss, under controlled conditions. PLoS One 2023; 18:e0294656. [PMID: 38032944 PMCID: PMC10688713 DOI: 10.1371/journal.pone.0294656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Described as the 'main ecological factor', temperature, strongly affects the physiological stress responses of fish. In order to evaluate the effects of temperature variations on fish culture and food value chain, the present study was designed as a climate change model. Furthermore, the present study provides a theoretical basis for a better understanding of the mechanisms of the environmentally induced changes. In this direction, we examined the blood physiology and oxidative stress responses induced by temperature variation in the rainbow trout, a temperature-sensitive cold-water fish. The obtained results showed that climate changes promoted the inhibited activities' expressions and the development of potential tissue and hematological defense mechanisms against temperature-induced toxic damage. This study showed that climate change could be a subset of the studies on the stress physiology in aquaculture, which can be developed for new experimental designs and research collaborations. Furthermore, it highlights knowledge gaps to guide future research in this emerging field.
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Affiliation(s)
- Gonca Alak
- Department of Seafood Processing, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Fatma Betül Özgeriş
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Atatürk University, Erzurum, Turkiye
| | - Arzu Uçar
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Veysel Parlak
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Esat Mahmut Kocaman
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Sinan Özcan
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
| | - Muhammed Atamanalp
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkiye
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Shen C, Feng G, Zhao F, Huang X, Wang M, Wang H. Integration of Transcriptomics and Proteomics Analysis Reveals the Molecular Mechanism of Eriocheir sinensis Gills Exposed to Heat Stress. Antioxidants (Basel) 2023; 12:2020. [PMID: 38136140 PMCID: PMC10740794 DOI: 10.3390/antiox12122020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
Heat stress is an increasingly concerning topic under global warming. Heat stress can induce organisms to produce excess reactive oxygen species, which will lead to cell damage and destroy the antioxidant defense of aquatic animals. Chinese mitten crab, Eriocheir sinensis, is sensitive to the change in water temperature, and parent crabs are more vulnerable during the breeding stage. In the present study, the multi-omics responses of parent E. sinensis gills to heat stress (24 h) were determined via transcriptome and proteome. The integrative analysis revealed that heat shock protein 70 (HSP70) and glutathione s-transferase (GST) were significantly up-regulated at gene and protein levels after heat stress, indicating that HSP70 and the antioxidant system participated in the regulatory mechanism of heat stress to resist oxidative damage. Moreover, the "Relaxin signaling pathway" was also activated at gene and protein levels under 30 °C stress, which implied that relaxin may be essential and responsible for reducing the oxidative damage of gills caused by extreme heat stress. These findings provided an understanding of the regulation mechanism in E. sinensis under heat stress at gene and protein levels. The mining of key functional genes, proteins, and pathways can also provide a basis for the cultivation of new varieties resistant to oxidative stress.
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Affiliation(s)
- Chenchen Shen
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; (C.S.); (F.Z.); (X.H.); (M.W.)
- College of Fisheries and Life sciences, Shanghai Ocean University, Shanghai 200090, China
| | - Guangpeng Feng
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; (C.S.); (F.Z.); (X.H.); (M.W.)
- College of Fisheries and Life sciences, Shanghai Ocean University, Shanghai 200090, China
- Jiangxi Institute for Fisheries Sciences, Poyang Lake Fisheries Research Centre of Jiangxi, Nanchang 330039, China;
| | - Feng Zhao
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; (C.S.); (F.Z.); (X.H.); (M.W.)
| | - Xiaorong Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; (C.S.); (F.Z.); (X.H.); (M.W.)
| | - Min Wang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; (C.S.); (F.Z.); (X.H.); (M.W.)
| | - Haihua Wang
- Jiangxi Institute for Fisheries Sciences, Poyang Lake Fisheries Research Centre of Jiangxi, Nanchang 330039, China;
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Lazado CC, Iversen M, Johansen LH, Brenne H, Sundaram AYM, Ytteborg E. Nasal responses to elevated temperature and Francisella noatunensis infection in Atlantic cod (Gadus morhua). Genomics 2023; 115:110735. [PMID: 37898334 DOI: 10.1016/j.ygeno.2023.110735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
We report the histological and transcriptomic changes in the olfactory organ of Atlantic cod exposed to Francisella noatunensis. Experimental infection was performed at either 12 °C or 17 °C. Infected fish presented the classic gross pathologies of francisellosis. Nasal morpho-phenotypic parameters were not significantly affected by elevated temperature and infection, except for the number of mucus cells in the 12 °C group seven weeks after the challenge. A higher number of genes were altered through time in the group reared at 17 °C. At termination, the nasal transcriptome of infected fish in both groups was similar to the control. When both infected groups were compared, 754 DEGs were identified, many of which were involved in signalling, defence, transmembrane and enzymatic processes. In conclusion, the study reveals that elevated temperature could trigger responses in the olfactory organ of Atlantic cod and shape the nasal response to F. noatunensis infection.
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Affiliation(s)
- Carlo C Lazado
- Nofima, The Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås 1431, Norway.
| | - Marianne Iversen
- Nofima, The Norwegian Institute of Food, Fisheries and Aquaculture Research, Tromsø 9019, Norway
| | - Lill-Heidi Johansen
- Nofima, The Norwegian Institute of Food, Fisheries and Aquaculture Research, Tromsø 9019, Norway
| | - Hanne Brenne
- Nofima, The Norwegian Institute of Food, Fisheries and Aquaculture Research, Tromsø 9019, Norway
| | - Arvind Y M Sundaram
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Elisabeth Ytteborg
- Nofima, The Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås 1431, Norway
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Ma F, Zhao L, Ma R, Wang J, Du L. FoxO signaling and mitochondria-related apoptosis pathways mediate tsinling lenok trout (Brachymystax lenok tsinlingensis) liver injury under high temperature stress. Int J Biol Macromol 2023; 251:126404. [PMID: 37597633 DOI: 10.1016/j.ijbiomac.2023.126404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
Tsinling lenok trout (Brachymystax lenok tsinlingensis) is a typical cold water fish. High temperature has been shown to damage the liver of fish. However, few studies have investigated the liver apoptosis induced by high temperature stress in fish from the perspective of gene expression and metabolic function. Therefore, we investigated the changes caused by high temperature stress (24 °C) on the liver tissue structure, antioxidant capacity, liver gene expression, and the metabolome of tsinling lenok trout. The transcriptomic results showed that genes associated with apoptosis, such as CASP8, CASP3, PERK, Bcl-6 and TRAIL, were upregulated under high temperature stress. Metabolomic analysis showed that the metabolic pathway of nucleotide synthesis was significantly downregulated, while that of oxygen radical synthesis was significantly upregulated. Integrated analysis showed that after high temperature stress, immune-related signaling pathways in trout were activated and their apoptosis level increased, which might be related to hepatopancreas injury. In addition, abnormalities in the tricarboxylic acid cycle and mitochondrial function were observed, suggesting that functional hypoxia caused by high temperature might be involved fish cell apoptosis. These results provide new insights into the process of cell apoptosis in fish under high temperature stress.
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Affiliation(s)
- Fang Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, PR China.
| | - Lei Zhao
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, PR China
| | - Ruilin Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, PR China
| | - Jing Wang
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, PR China
| | - Leqiang Du
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, PR China
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Bălbărău A, Ivanescu LM, Martinescu G, Rîmbu CM, Acatrinei D, Lazar M, Cocean I, Gurlui S, Cocean A, Miron L. Septicemic Outbreak in A Rainbow Trout Intensive Aquaculture System: Clinical Finds, Etiological Agents, and Predisposing Factors. Life (Basel) 2023; 13:2083. [PMID: 37895464 PMCID: PMC10607993 DOI: 10.3390/life13102083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/06/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
On the 23rd of September 2022, a small intensive aquaculture unit populated with rainbow trout (Oncorhynchus mykiss) reported increased mortality in adults and juvenile fish. The unit comprised 12 enclosed concrete basins with a capacity of ten cubic meters of water, populated with 150 kg of fish each. Fish were subjected to a clinical examination on the site, after which whole fish were harvested for a bacteriological and histopathological examination. Water quality parameters were examined using classic biochemical methods and Fourier Transform Infrared Spectroscopy in order to find out whether the environment in which the fish live is also a predisposing factor that could facilitate different pathogens and induce a state of disease in the fish. Real-time PCR was performed on strains of Aeromonas spp. sampled from the fish to accurately identify the pathogen species. The goal was to accurately identify the problems and predisposing factors that lead to disease outbreaks.
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Affiliation(s)
- Adrian Bălbărău
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Larisa Maria Ivanescu
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Gabriela Martinescu
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Cristina Mihaela Rîmbu
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Dumitru Acatrinei
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Mircea Lazar
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
| | - Iuliana Cocean
- Faculty of Physics, Atmosphere Optics, Spectroscopy and Laser Laboratory (LOASL), “Alexandru Ioan Cuza” University of Iasi, 11 Carol I Bld., 700506 Iasi, Romania
| | - Silviu Gurlui
- Faculty of Physics, Atmosphere Optics, Spectroscopy and Laser Laboratory (LOASL), “Alexandru Ioan Cuza” University of Iasi, 11 Carol I Bld., 700506 Iasi, Romania
| | - Alexandru Cocean
- Faculty of Physics, Atmosphere Optics, Spectroscopy and Laser Laboratory (LOASL), “Alexandru Ioan Cuza” University of Iasi, 11 Carol I Bld., 700506 Iasi, Romania
- Laboratory of Applied Meteorology and Climatology, A Building, Physics, Research Center with Integrated Techniques for Atmospheric Aerosol Investigation in Romania, RECENT AIR, “Alexandru Ioan Cuza” University of Iasi, 11 Carol I, 700506 Iasi, Romania
| | - Liviu Miron
- Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iași University of Life Sciences, Aleea Mihail Sadoveanu nr. 8, 700489 Iaşi, Romania (C.M.R.); (D.A.); (L.M.)
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Marcoli R, Symonds JE, Walker SP, Battershill CN, Bird S. Characterising the Physiological Responses of Chinook Salmon ( Oncorhynchus tshawytscha) Subjected to Heat and Oxygen Stress. BIOLOGY 2023; 12:1342. [PMID: 37887052 PMCID: PMC10604766 DOI: 10.3390/biology12101342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
In New Zealand, during the hottest periods of the year, some salmon farms in the Marlborough Sounds reach water temperatures above the optimal range for Chinook salmon. High levels of mortality are recorded during these periods, emphasising the importance of understanding thermal stress in this species. In this study, the responses of Chinook salmon (Oncorhynchus tshawytscha) to chronic, long-term changes in temperature and dissolved oxygen were investigated. This is a unique investigation due to the duration of the stress events the fish were exposed to. Health and haematological parameters were analysed alongside gene expression results to determine the effects of thermal stress on Chinook salmon. Six copies of heat shock protein 90 (HSP90) were discovered and characterised: HSP90AA1.1a, HSP90AA1.2a, HSP90AA1.1b, HSP90AA1.2b, HSP90AB1a and HSP90AB1b, as well as two copies of SOD1, named SOD1a and SOD1b. The amino acid sequences contained features similar to those found in other vertebrate HSP90 and SOD1 sequences, and the phylogenetic tree and synteny analysis provided conclusive evidence of their relationship to other vertebrate HSP90 and SOD1 genes. Primers were designed for qPCR to enable the expression of all copies of HSP90 and SOD1 to be analysed. The expression studies showed that HSP90 and SOD1 were downregulated in the liver and spleen in response to longer term exposure to high temperatures and lower dissolved oxygen. HSP90 was also downregulated in the gill; however, the results for SOD1 expression in the gill were not conclusive. This study provides important insights into the physiological and genetic responses of Chinook salmon to temperature and oxygen stress, which are critical for developing sustainable fish aquaculture in an era of changing global climates.
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Affiliation(s)
- Roberta Marcoli
- Centre for Sustainable Tropical Fisheries, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia;
- ARC Research Hub for Supercharging Tropical Aquaculture through Genetic Solutions, James Cook University, Townsville, QLD 4811, Australia
- School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand;
| | - Jane E. Symonds
- Cawthron Institute, Nelson 7010, New Zealand; (J.E.S.); (S.P.W.)
| | - Seumas P. Walker
- Cawthron Institute, Nelson 7010, New Zealand; (J.E.S.); (S.P.W.)
| | | | - Steve Bird
- School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand;
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Holhorea PG, Naya-Català F, Belenguer Á, Calduch-Giner JA, Pérez-Sánchez J. Understanding how high stocking densities and concurrent limited oxygen availability drive social cohesion and adaptive features in regulatory growth, antioxidant defense and lipid metabolism in farmed gilthead sea bream ( Sparus aurata). Front Physiol 2023; 14:1272267. [PMID: 37869714 PMCID: PMC10586056 DOI: 10.3389/fphys.2023.1272267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023] Open
Abstract
The study combined the use of biometric, behavioral, physiological and external tissue damage scoring systems to better understand how high stocking densities drive schooling behavior and other adaptive features during the finishing growing phase of farmed gilthead sea bream in the Western Mediterranean. Fish were grown at three different final stocking densities (LD, 8.5 kg/m3; MD, 17 kg/m3; HD, 25 kg/m3). Water oxygen concentration varied between 5 and 6 ppm in LD fish to 3-4 ppm in HD fish with the summer rise of water temperature from 19°C to 26°C (May-July). HD fish showed a reduction of feed intake and growth rates, but they also showed a reinforced social cohesion with a well-defined endogenous swimming activity rhythm with feeding time as a main synchronization factor. The monitored decrease of the breathing/swimming activity ratio by means of the AEFishBIT data-logger also indicated a decreased energy partitioning for growth in the HD environment with a limited oxygen availability. Plasma glucose and cortisol levels increased with the rise of stocking density, and the close association of glycaemia with the expression level of antioxidant enzymes (mn-sod, gpx4, prdx5) in liver and molecular chaperones (grp170, grp75) in skeletal muscle highlighted the involvement of glucose in redox processes via rerouting in the pentose-phosphate-pathway. Other adaptive features included the depletion of oxidative metabolism that favored lipid storage rather than fatty acid oxidation to decrease the oxygen demand as last electron acceptor in the mitochondrial respiratory chain. This was coincident with the metabolic readjustment of the Gh/Igf endocrine-growth cascade that promoted the regulation of muscle growth at the local level rather than a systemic action via the liver Gh/Igf axis. Moreover, correlation analyses within HD fish displayed negative correlations of hepatic transcripts of igf1 and igf2 with the data-logger measurements of activity and respiration, whereas the opposite was found for muscle igf2, ghr1 and ghr2. This was indicative of a growth-regulatory transition that supported a proactive instead of a reactive behavior in HD fish, which was considered adaptive to preserve an active and synchronized feeding behavior with a minimized risk of oxidative stress and epidermal skin damage.
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Affiliation(s)
| | | | | | | | - Jaume Pérez-Sánchez
- Nutrigenomics and Fish Growth Endocrinology Group, Institute of Aquaculture Torre de la Sal (IATS, Spanish National Research Council (CSIC)), Castellón, Spain
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Alfonso S, Houdelet C, Bessa E, Geffroy B, Sadoul B. Water temperature explains part of the variation in basal plasma cortisol level within and between fish species. JOURNAL OF FISH BIOLOGY 2023; 103:828-838. [PMID: 36756681 DOI: 10.1111/jfb.15342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Within the thermal tolerance range of fish, metabolism is known to escalate with warming. Rapid thermic changes also trigger a series of physiological responses, including activation of the stress axis, producing cortisol. Fish have adapted to their environment by producing a low level of plasmatic cortisol when unstressed (basal), so that thriving in their natural temperature should not impact their basal cortisol levels. Yet, surprisingly, little is known on how temperature affects cortisol within and between fish species. Here, we conducted a phylogenetic meta-analysis to (1) test whether temperature can explain the differences in basal cortisol between species and (2) evaluate the role of temperature on differences in cortisol levels between individuals of a same species. To do this, we retrieved basal plasma cortisol data from 126 studies, investigating 33 marine and freshwater fish species, and correlated it to water temperature. Intra-species variability in basal plasma cortisol levels was further investigated in two species: the European sea bass Dicentrarchus labrax and the Nile tilapia Oreochromis niloticus. Factors such as life stage, sex and weight were also considered in the analyses. Overall, our phylogenetic analysis revealed a clear positive correlation between basal cortisol level and the temperature at which the fish live. The role of temperature has also been confirmed within D. labrax, while it failed to be significant in O. niloticus. In this paper, the influence of habitat, life stage, sex and weight on basal plasma cortisol levels is also discussed. Since some abiotic parameters were not included in the analysis, our study is a call to encourage scientists to systematically report other key factors such as dissolved oxygen or salinity to fully depict the temperature-cortisol relationship in fishes.
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Affiliation(s)
| | - Camille Houdelet
- MARBEC, Universite Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Eduardo Bessa
- Graduate Program in Ecology, Life and Earth Sciences, University of Brasília, Brasília, Brazil
| | - Benjamin Geffroy
- MARBEC, Universite Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Bastien Sadoul
- DECOD, Ecosystem Dynamics and Sustainability, Institut Agro, Ifremer, INRAE, Rennes, France
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Sandrelli RM, Gamperl AK. The upper temperature and hypoxia limits of Atlantic salmon (Salmo salar) depend greatly on the method utilized. J Exp Biol 2023; 226:jeb246227. [PMID: 37622446 PMCID: PMC10560559 DOI: 10.1242/jeb.246227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
In this study, Atlantic salmon were: (i) implanted with heart rate (fH) data storage tags (DSTs), pharmacologically stimulated to maximum fH, and warmed at 10°C h-1 (i.e. tested using a 'rapid screening protocol'); (ii) fitted with Doppler® flow probes, recovered in respirometers and given a critical thermal maximum (CTmax) test at 2°C h-1; and (iii) implanted with fH DSTs, recovered in a tank with conspecifics for 4 weeks, and had their CTmax determined at 2°C h-1. Fish in respirometers and those free-swimming were also exposed to a stepwise decrease in water oxygen level (100% to 30% air saturation) to determine the oxygen level at which bradycardia occurred. Resting fH was much lower in free-swimming fish than in those in respirometers (∼49 versus 69 beats min-1) and this was reflected in their scope for fH (∼104 versus 71 beats min-1) and CTmax (27.7 versus 25.9°C). Further, the Arrhenius breakpoint temperature and temperature at peak fH for free-swimming fish were considerably greater than for those tested in the respirometers and given a rapid screening protocol (18.4, 18.1 and 14.6°C; and 26.5, 23.2 and 20.2°C, respectively). Finally, the oxygen level at which bradycardia occurred was significantly higher in free-swimming salmon than in those in respirometers (∼62% versus 53% air saturation). These results: highlight the limitations of some lab-based methods of determining fH parameters and thermal tolerance in fishes; and suggest that scope for fH may be a more reliable and predictive measure of a fish's upper thermal tolerance than their peak fH.
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Affiliation(s)
- Rebeccah M. Sandrelli
- Department of Ocean Sciences, Memorial University of Newfoundland and Labrador, St John's, NL, Canada, A1C 5S7
| | - A. Kurt Gamperl
- Department of Ocean Sciences, Memorial University of Newfoundland and Labrador, St John's, NL, Canada, A1C 5S7
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Silveira MM, Donelson JM, McCormick MI, Araujo-Silva H, Luchiari AC. Impact of ocean warming on a coral reef fish learning and memory. PeerJ 2023; 11:e15729. [PMID: 37576501 PMCID: PMC10416774 DOI: 10.7717/peerj.15729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 06/18/2023] [Indexed: 08/15/2023] Open
Abstract
Tropical ectotherms are highly sensitive to environmental warming, especially coral reef fishes, which are negatively impacted by an increase of a few degrees in ocean temperature. However, much of our understanding on the thermal sensitivity of reef fish is focused on a few traits (e.g., metabolism, reproduction) and we currently lack knowledge on warming effects on cognition, which may endanger decision-making and survival. Here, we investigated the effects of warming on learning and memory in a damselfish species, Acanthochromis polyacanthus. Fish were held at 28-28.5 °C (control group), 30-30.5 °C (moderate warming group) or 31.5-32 °C (high warming group) for 2 weeks, and then trained to associate a blue tag (cue) to the presence of a conspecific (reward). Following 20 training trials (5 days), fish were tested for associative learning (on the following day) and memory storage (after a 5-days interval). The control group A. polyacanthus showed learning of the task and memory retention after five days, but increasing water temperature impaired learning and memory. A thorough understanding of the effects of heat stress, cognition, and fitness is urgently required because cognition may be a key factor determining animals' performance in the predicted scenario of climate changes. Knowing how different species respond to warming can lead to better predictions of future community dynamics, and because it is species specific, it could pinpoint vulnerable/resilience species.
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Affiliation(s)
- Mayara M. Silveira
- Department of Physiology and Behavior, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Jennifer M. Donelson
- ARC Centre of Excellence for Coral Reef Studies, James Cook University of North Queensland, Townville, Australia
| | | | - Heloysa Araujo-Silva
- Department of Physiology and Behavior, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
| | - Ana C. Luchiari
- Department of Physiology and Behavior, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil
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Magierecka A, Cooper B, Sloman KA, Metcalfe NB. Unpredictability of maternal environment shapes offspring behaviour without affecting stress-induced cortisol in an annual vertebrate. Horm Behav 2023; 154:105396. [PMID: 37399780 DOI: 10.1016/j.yhbeh.2023.105396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 05/23/2023] [Accepted: 06/19/2023] [Indexed: 07/05/2023]
Abstract
Exposure of females to stressful conditions during pregnancy or oogenesis has a profound effect on the phenotype of their offspring. For example, offspring behavioural phenotype may show altered patterns in terms of the consistency of behavioural patterns and their average level of performance. Maternal stress can also affect the development of the stress axis in offspring leading to alterations in their physiological stress response. However, the majority of evidence comes from studies utilising acute stressors or exogenous glucocorticoids, and little is known about the effect of chronic maternal stress, particularly in the context of stress lasting throughout entire reproductive lifespan. To bridge this knowledge gap, we exposed female sticklebacks to stressful and unpredictable environmental conditions throughout the breeding season. We quantified the activity, sheltering and anxiety-like behaviour of offspring from three successive clutches of these females, and calculated Intra-class Correlation Coefficients for these behaviours in siblings and half-siblings. We also exposed offspring to an acute stressor and measured their peak cortisol levels. An unpredictable maternal environment had no modifying effect on inter-clutch acute stress responsivity, but resulted in diversification of offspring behaviour, indicated by an increased between-individual variability within families. This may represent a bet-hedging strategy, whereby females produce offspring differing in behavioural phenotype, to increase the chance that some of these offspring will be better at coping with the anticipated conditions.
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Affiliation(s)
- Agnieszka Magierecka
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, UK.
| | - Ben Cooper
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, UK
| | - Katherine A Sloman
- Institute for Biomedical and Environmental Health Research, University of the West of Scotland, Lanarkshire, UK
| | - Neil B Metcalfe
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, UK
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Penman RJ, Bugg W, Rost-Komiya B, Earhart ML, Brauner CJ. Slow heating rates increase thermal tolerance and alter mRNA HSP expression in juvenile white sturgeon (Acipenser transmontanus). J Therm Biol 2023; 115:103599. [PMID: 37413754 DOI: 10.1016/j.jtherbio.2023.103599] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/13/2023] [Accepted: 05/14/2023] [Indexed: 07/08/2023]
Abstract
Freshwater fish such as white sturgeon (Acipenser transmontanus) are particularly vulnerable to the effects of anthropogenically induced global warming. Critical thermal maximum tests (CTmax) are often conducted to provide insight into the impacts of changing temperatures; however, little is known about how the rate of temperature increase in these assays affects thermal tolerance. To assess the effect of heating rate (0.3 °C/min, 0.03 °C/min, 0.003 °C/min) we measured thermal tolerance, somatic indices, and gill Hsp mRNA expression. Contrary to what has been observed in most other fish species, white sturgeon thermal tolerance was highest at the slowest heating rate of 0.003 °C/min (34.2 °C, and CTmax of 31.3 and 29.2 °C, for rates 0.03 and 0.3 °C/min, respectively) suggesting an ability to rapidly acclimate to slowly increasing temperatures. Hepatosomatic index decreased in all heating rates relative to control fish, indicative of the metabolic costs of thermal stress. At the transcriptional level, slower heating rates resulted in higher gill mRNA expression of Hsp90a, Hsp90b, and Hsp70. Hsp70 mRNA expression was increased in all heating rates relative to controls, whereas expression of Hsp90a and Hsp90b mRNA only increased in the two slower trials. Together these data indicate that white sturgeon have a very plastic thermal response, which is likely energetically costly to induce. Acute temperature changes may be more detrimental to sturgeon as they struggle to acclimate to rapid changes in their environment, however under slower warming rates they demonstrate strong thermal plasticity to warming.
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Affiliation(s)
- Rachael J Penman
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada.
| | - William Bugg
- Department of Biology, The University of Manitoba, Winnipeg, Manitoba, Canada
| | - Beatrice Rost-Komiya
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Madison L Earhart
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Colin J Brauner
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
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