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Terry CE, Liebzeit JA, Purvis EM, Dowd WW. Interactive effects of temperature and salinity on metabolism and activity of the copepod Tigriopus californicus. J Exp Biol 2024; 227:jeb248040. [PMID: 39155685 PMCID: PMC11418200 DOI: 10.1242/jeb.248040] [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: 05/17/2024] [Accepted: 08/05/2024] [Indexed: 08/20/2024]
Abstract
In natural environments, two or more abiotic parameters often vary simultaneously, and interactions between co-varying parameters frequently result in unpredictable, non-additive biological responses. To better understand the mechanisms and consequences of interactions between multiple stressors, it is important to study their effects on not only fitness (survival and reproduction) but also performance and intermediary physiological processes. The splash-pool copepod Tigriopus californicus tolerates extremely variable abiotic conditions and exhibits a non-additive, antagonistic interaction resulting in higher survival when simultaneously exposed to high salinity and acute heat stress. Here, we investigated the response of T. californicus in activity and oxygen consumption under simultaneous manipulation of salinity and temperature to identify whether this interaction also arises in these sublethal measures of performance. Oxygen consumption and activity rates decreased with increasing assay salinity. Oxygen consumption also sharply increased in response to acute transfer to lower salinities, an effect that was absent upon transfer to higher salinities. Elevated temperature led to reduced rates of activity overall, resulting in no discernible impact of increased temperature on routine metabolic rates. This suggests that swimming activity has a non-negligible effect on the metabolic rates of copepods and must be accounted for in metabolic studies. Temperature also interacted with assay salinity to affect activity, and with acclimation salinity to affect routine metabolic rates upon acute salinity transfer, implying that the sublethal impacts of these co-varying factors are also not predictable from experiments that study them in isolation.
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Affiliation(s)
- Caroline E. Terry
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Josie A. Liebzeit
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Ella M. Purvis
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - W. Wesley Dowd
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
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2
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Vicentini M, Pessatti JBK, Perussolo MC, Lirola JR, Marcondes FR, Nascimento N, Mela M, Cestari MM, Prodocimo V, Simmons D, Silva de Assis HC. Different response of females and males Neotropical catfish (Rhamdia quelen) upon short-term temperature increase. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:477-494. [PMID: 38112904 DOI: 10.1007/s10695-023-01278-2] [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: 05/31/2023] [Accepted: 11/24/2023] [Indexed: 12/21/2023]
Abstract
Climate change has been one of the most discussed topics in the world. Global warming is characterized by an increase in global temperature, also in aquatic environments. The increased temperature can affect aquatic organisms with lethal and sublethal effects. Thus, it is necessary to understand how different species respond to temperature. This study aimed to evaluate how the Neotropical catfish species Rhamdia quelen responds to temperature increases. The fish were exposed to temperatures of 25 °C (control) and 30 °C after gradual temperature increase for 7 days. After 96 h in each temperature, the fish were anesthetized, blood was collected, and after euthanasia, brain, liver, posterior kidney, gills, muscle, and gonads were collected. The gonads were used for sexing, while other tissues were used for the hematological, biochemical, genotoxic, and histopathological biomarkers analysis. Hepatic proteomic analysis with a focus on energy production was also carried out. Blood parameter changes in both sexes, including an increase in glucose in males, leukopenia in females, and genotoxicity in both sexes. Hepatic proteins related to energy production were altered in both sexes, but mainly in males. Others biomarker alterations, such as histopathological, were not observed in other tissues; however, the antioxidant system was affected differently between sexes. These showed that R. quelen juveniles, at temperatures higher than its optimum temperature such as 30 °C, has several sublethal changes, such as hematological alterations, antioxidant system activation, and energetic metabolism alteration, especially in males. Thus, short-term temperature rise can affect females and males of R. quelen differently.
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Affiliation(s)
- Maiara Vicentini
- Ecology and Conservation Post-Graduation Program, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Pharmacology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | | | - Maiara Carolina Perussolo
- Pharmacology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
- Pelé Pequeno Príncipe Research Institute, Curitiba, PR, 80250-200, Brazil
| | - Juliana Roratto Lirola
- Genetics Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | | | - Natalia Nascimento
- Physiology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Maritana Mela
- Cell Biology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Marta Margarete Cestari
- Genetics Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Viviane Prodocimo
- Physiology Department, Federal University of Paraná, PO Box 19031, Curitiba, PR, 81530-980, Brazil
| | - Denina Simmons
- Faculty of Science, OntarioTech University, Oshawa, ON, L1G 0C5, Canada
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3
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Jafari F, Naeemi AS, Sohani MM, Noorinezhad M. Effect of elevated temperature, sea water acidification, and phenanthrene on the expression of genes involved in the shell and pearl formation of economic pearl oyster (Pinctada radiata). MARINE POLLUTION BULLETIN 2023; 196:115603. [PMID: 37793272 DOI: 10.1016/j.marpolbul.2023.115603] [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: 03/17/2023] [Revised: 09/04/2023] [Accepted: 09/26/2023] [Indexed: 10/06/2023]
Abstract
Our study aims to examine the effect of some stressors on the gene expression levels of shell matrix proteins in a pearl oyster. Oysters were exposed to the different combinations of the temperature, pH, and phenanthrene concentration is currently measured in the Persian Gulf and the predicted ocean warming and acidification for 28 days. The expression of all the studied genes was significantly downregulated. Time and temperature had the greatest effects on the decreases in n19 and n16 genes expression, respectively. Aspein and msi60 genes expression were highly influenced by pH. Pearlin was affected by double interaction temperature and phenanthrene. Moreover, a correlation was observed among the expression levels of studied genes. This study represents basic data on the relationship between mRNA transcription genes involved in the shell and pearl formation and climate changes in pollutant presence conditions and acclimatizing mechanism of the oyster to the future scenario as well.
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Affiliation(s)
- Fatemeh Jafari
- University of Guilan, Faculty of Sciences, Department of Biology, Rasht, Iran
| | - Akram Sadat Naeemi
- University of Guilan, Faculty of Sciences, Department of Biology, Rasht, Iran.
| | - Mohammad Mehdi Sohani
- University of Guilan, Faculty of Agricultural Sciences, Department of Biotechnology, Rasht, Iran
| | - Mohsen Noorinezhad
- Iranian Shrimp Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education & Extension Organization (AREEO), Bushehr, Iran
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4
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Onthank KL, Foster J, Preston Carman Jr E, Foster JE, Culler-Juarez M, Calvo E, Duerksen W, Natiuk T, Saca L. The Open acidification Tank Controller: An open-source device for the control of pH and temperature in ocean acidification experiments. HARDWAREX 2023; 14:e00435. [PMID: 37333768 PMCID: PMC10276295 DOI: 10.1016/j.ohx.2023.e00435] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/05/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023]
Abstract
Ocean acidification is the process by which the increase in atmospheric CO2 causes a corresponding increase in seawater CO2 and results in lowering the seawater pH. While this process is likely to have substantial impacts on marine ecosystems, research into the effect of ocean acidification has been limited by the high costs of quality tools to perform ocean acidification treatments in the lab. The Open Acidification Tank Controller is designed to reduce the cost of ocean acidification research by providing a device that can monitor and control pH and temperature of aquaria as well as or better than commercially available research-grade devices, but for less than $250 USD per aquarium. The device is centered around an Arduino Mega 2560 and is assembled into a 3D printed housing. It monitors pH using a BNC glass pH probe and temperature using a three-wire waterproof PT100 temperature sensor. The Open Acidification Tank Controller also features web-based parameter reporting, and data storage to a micro-SD card. This device can hold aquarium pH and temperature at given setpoints, ramp between two values over a user-defined time period, or produce a sine-wave fluctuation in values.
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Affiliation(s)
- Kirt L Onthank
- Department of Biological Sciences, Walla Walla University, College Place, WA, United States
| | - James Foster
- Department of Computer Science, Walla Walla University, College Place, WA, United States
| | - E. Preston Carman Jr
- Department of Computer Science, Walla Walla University, College Place, WA, United States
| | - John E. Foster
- Department of Mathematics, Walla Walla University, College Place, WA, United States
| | - Monica Culler-Juarez
- Department of Biological Sciences, Walla Walla University, College Place, WA, United States
| | - Eliam Calvo
- Department of Computer Science, Walla Walla University, College Place, WA, United States
| | - Wesley Duerksen
- Department of Computer Science, Walla Walla University, College Place, WA, United States
| | - Trevor Natiuk
- Department of Computer Science, Walla Walla University, College Place, WA, United States
| | - Lucas Saca
- Department of Computer Science, Walla Walla University, College Place, WA, United States
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5
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Lattos A, Papadopoulos DK, Giantsis IA, Feidantsis K, Georgoulis I, Karagiannis D, Carella F, Michaelidis B. Investigation of the highly endangered Pinna nobilis' mass mortalities: Seasonal and temperature patterns of health status, antioxidant and heat stress responses. MARINE ENVIRONMENTAL RESEARCH 2023; 188:105977. [PMID: 37043840 DOI: 10.1016/j.marenvres.2023.105977] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 04/03/2023] [Accepted: 04/07/2023] [Indexed: 06/11/2023]
Abstract
Recently, P. nobilis populations have suffered a tremendous reduction, with pathogens potentially playing a crucial role. Considering its highly endangered status, mechanisms leading to mass mortalities were examined in one or multiple pathogens infected populations. Thus, seasonal antioxidant enzymatic activities, hsp70 and catalase mRNA levels, were investigated in two different Greek populations, during mass mortality events in summer of 2020. Samples were collected from Fthiotis and Lesvos during February (ToC 14 ± 1.2 and 15 ± 1 respectively), April (ToC 18 ± 1.2 and 17 ± 1.3 respectively), and June (ToC 24.5 ± 1.5 and 21.5 ± 1.5 respectively) 2020. In July of the same year (ToC 26.5 ± 1.7 in Fthiotis and 24.5 ± 1.7 in Lesvos), no live specimens were found. All biochemical parameters and phylogenetic analysis suggest that pathogen infection increases P. nobilis sensitivity to water temperature, subsequently leading to mass mortality. The latter was obvious in Fthiotis individuals, in which Haplosporidium pinnae was also observed with Mycobacterium spp., compared to Lesvos individuals.
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Affiliation(s)
- Athanasios Lattos
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Dimitrios K Papadopoulos
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Ioannis A Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, GR-53100, Florina, Greece
| | - Konstantinos Feidantsis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Ioannis Georgoulis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece
| | - Dimitrios Karagiannis
- National Reference Laboratory for Mollusc Diseases, Ministry of Rural Development and Food, 7 Frixou Street, GR-54627, Thessaloniki, Greece
| | - Francesca Carella
- University of Naples Federico II, Department of Biology, Complesso di MSA, 80126, Naples, Italy
| | - Basile Michaelidis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Greece.
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Toy JA, Kroeker KJ, Logan CA, Takeshita Y, Longo GC, Bernardi G. Upwelling-level acidification and pH/pCO 2 variability moderate effects of ocean acidification on brain gene expression in the temperate surfperch, Embiotoca jacksoni. Mol Ecol 2022; 31:4707-4725. [PMID: 35821657 PMCID: PMC9545418 DOI: 10.1111/mec.16611] [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: 08/24/2021] [Revised: 06/05/2022] [Accepted: 07/04/2022] [Indexed: 11/27/2022]
Abstract
Acidification-induced changes in neurological function have been documented in several tropical marine fishes. Here, we investigate whether similar patterns of neurological impacts are observed in a temperate Pacific fish that naturally experiences regular and often large shifts in environmental pH/pCO2 . In two laboratory experiments, we tested the effect of acidification, as well as pH/pCO2 variability, on gene expression in the brain tissue of a common temperate kelp forest/estuarine fish, Embiotoca jacksoni. Experiment 1 employed static pH treatments (target pH = 7.85/7.30), while Experiment 2 incorporated two variable treatments that oscillated around corresponding static treatments with the same mean (target pH = 7.85/7.70) in an eight-day cycle (amplitude ± 0.15). We found that patterns of global gene expression differed across pH level treatments. Additionally, we identified differential expression of specific genes and enrichment of specific gene sets (GSEA) in comparisons of static pH treatments and in comparisons of static and variable pH treatments of the same mean pH. Importantly, we found that pH/pCO2 variability decreased the number of differentially expressed genes detected between high and low pH treatments, and that inter-individual variability in gene expression was greater in variable treatments than static treatments. These results provide important confirmation of neurological impacts of acidification in a temperate fish species and, critically, that natural environmental variability may mediate the impacts of ocean acidification.
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Affiliation(s)
- Jason A Toy
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, United States
| | - Kristy J Kroeker
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, United States
| | - Cheryl A Logan
- Division of Science and Environmental Policy, California State University Monterey Bay, Seaside, CA, United States
| | - Yuichiro Takeshita
- Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
| | - Gary C Longo
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, United States.,NRC Research Associateship Program, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States
| | - Giacomo Bernardi
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, United States
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Montero-Taboada R, Sotil G, Dionicio-Acedo J, Rosado-Salazar M, Aguirre-Velarde A. Tolerance of juvenile Peruvian rock seabass (Paralabrax humeralis Valenciennes, 1828) and Peruvian grunt (Anisotremus scapularis Tschudi, 1846) to low-oxygen conditions. JOURNAL OF FISH BIOLOGY 2022; 100:1497-1509. [PMID: 35398900 DOI: 10.1111/jfb.15060] [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: 11/17/2021] [Revised: 03/28/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
Hypoxia is currently one of the greatest threats to coastal ecosystems worldwide, generating massive mortality of marine organisms, loss of benthic ecosystems and a decrease in fishery production. We evaluated and compared the tolerance to hypoxia of two species from different habitats of the Peruvian coast, the Peruvian rock seabass Paralabrax humeralis and the Peruvian grunt Anisotremus scapularis. The effect of hypoxia was measured as a function of the exposure time (progressive and chronic) on the behavioural and physiological responses of the two species, as well as on the enzymatic activity associated with the oxidative stress response of lactate dehydrogenase (LDH), superoxide dismutase (SOD) and alkaline phosphatase (AKP). The ventilatory frequency was measured at two different temperatures (16 and 22°C) under progressive hypoxia conditions to determine the ventilatory critical point (Vcp). A. scapularis showed a higher Vcp than P. humeralis, which was positively affected by temperature. The median lethal time of A. scapularis was 36 min at 60% of oxygen saturation, while P. humeralis showed no mortality after 31 days of exposure at 5% oxygen saturation. Different enzymatic activity (P < 0.05) between species under hypoxia was recorded, in SOD (gill and muscle) and AKP (blood). A general tendency, under hypoxia, to slightly increase LDH activity (except for blood in A. scapularis, P < 0.05) and SOD activity (mainly in muscle of A. scapularis, P < 0.05), and decrease AKP activity (mainly in liver of P. humeralis, P < 0.05) was observed. The response of P. humeralis to hypoxia goes through a reduction in activity and metabolism, so this species can be considered hypoxia-tolerant, allowing it to face hypoxia events during prolonged periods. On the other hand, A. scapularis response to hypoxia prioritizes avoidance mechanisms and, together with other adaptations, makes it especially vulnerable to hypoxia and able to be considered hypoxia-intolerant.
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Affiliation(s)
- Rebeca Montero-Taboada
- Universidad Científica del Sur, Carretera Panamerica Sur Km 19, Lima, Peru
- Instituto del Mar del Perú, Esquina General Valle y Gamarra S/N, Callao, Peru
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Giovanna Sotil
- Instituto del Mar del Perú, Esquina General Valle y Gamarra S/N, Callao, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Av. Venezuela s/n, Ciudad Universitaria, Lima, Peru
| | - Jhon Dionicio-Acedo
- Instituto del Mar del Perú, Esquina General Valle y Gamarra S/N, Callao, Peru
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8
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Climate change affects the parasitism rate and impairs the regulation of genes related to oxidative stress and ionoregulation of Colossoma macropomum. Sci Rep 2021; 11:22350. [PMID: 34785749 PMCID: PMC8595885 DOI: 10.1038/s41598-021-01830-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/08/2021] [Indexed: 01/29/2023] Open
Abstract
Global climate change represents a critical threat to the environment since it influences organismic interactions, such as the host-parasite systems, mainly in ectotherms including fishes. Rising temperature and CO2 are predicted to affect this interaction other and critical physiological processes in fish. Herein, we investigated the effects of different periods of exposure to climate change scenarios and to two degrees of parasitism by monogeneans in the host-parasite interaction, as well as the antioxidant and ionoregulatory responses of tambaqui (Colossoma macropomum), an important species in South American fishing and aquaculture. We hypothesized that temperature and CO2 changes in combination with parasite infection would interfere with the host's physiological processes that are related to oxidative stress and ionoregulation. We experimentally exposed C. macropomum to low and high levels of parasitism in the current and extreme climate scenarios (4.5 °C and 900 ppm CO2 above current levels) for periods of seven and thirty days and we use as analyzed factors; the exposure time, the climate scenario and parasitism level in a 2 × 2 × 2 factorial through a three-way ANOVA as being fish the experimental unit (n = 8). An analysis of gill enzymatic and gene expression profile was performed to assess physiological (SOD, GPx and Na+/K+-ATPase enzymes) and molecular (Nrf2, SOD1, HIF-1α and NKA α1a genes) responses. A clear difference in the parasitism levels of individuals exposed to the extreme climate scenario was observed with a rapid and aggressive increase that was higher after 7 days of exposure though showed a decrease after 30 days. The combination of exposure to the extreme climate change scenario and parasitism caused oxidative stress and osmoregulatory disturbance, which was observed through the analysis of gene expression (Nrf2, SOD1, HIF-1α and NKA α1a) and antioxidant and ionoregulatory enzymes (SOD, GPx and Na+/K+-ATPase) on the host, possibly linked to inflammatory processes caused by the high degree of parasitism. In the coming years, these conditions may result in losses of performance for this species, and as such will represent ecological damage and economical losses, and result in a possible vulnerability in relation to food security.
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9
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Mazurais D, Neven CJ, Servili A, Vitré T, Madec L, Collet S, Zambonino-Infante JL, Mark FC. Effect of long-term intergenerational exposure to ocean acidification on ompa and ompb transcripts expression in European seabass (Dicentrarchus labrax). MARINE ENVIRONMENTAL RESEARCH 2021; 170:105438. [PMID: 34340029 DOI: 10.1016/j.marenvres.2021.105438] [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: 04/27/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Since sensory system allows organisms to perceive and interact with their external environment, any disruption in their functioning may have detrimental consequences on their survival. Ocean acidification has been shown to potentially impair olfactory system in fish and it is therefore essential to develop biological tools contributing to better characterize such effects. The olfactory marker protein (omp) gene is involved in the maturation and the activity of olfactory sensory neurons in vertebrates. In teleosts, two omp genes (ompa and ompb) originating from whole genome duplication have been identified. In this study, bioinformatic analysis allowed characterization of the ompa and ompb genes from the European seabass (Dicentrarchus labrax) genome. The European seabass ompa and ompb genes differ in deduced amino acid sequences and in their expression pattern throughout the tissues. While both ompa and ompb mRNA are strongly expressed in the olfactory epithelium, ompb expression was further observable in different brain areas while ompa expression was also detected in the eyes and in other peripheral tissues. Expression levels of ompa and ompb mRNA were investigated in adult seabass (4 years-old, F0) and in their offspring (F1) exposed to pH of 8 (control) or 7.6 (ocean acidification, OA). Under OA ompb mRNA was down-regulated while ompa mRNA was up-regulated in the olfactory epithelium of F0 adults, suggesting a long-term intragenerational OA-induced regulation of the olfactory sensory system. A shift in the expression profiles of both ompa and ompb mRNA was observed at early larval stages in F1 under OA, suggesting a disruption in the developmental process. Contrary to the F0, the expression of ompa and ompb mRNA was not anymore significantly regulated under OA in the olfactory epithelium of juvenile F1 fish. This work provides evidence for long-term impact of OA on sensorial system of European seabass as well as potential intergenerational acclimation of omp genes expression to OA in European seabass.
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Affiliation(s)
- David Mazurais
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F29280, Plouzané, France.
| | - Carolin J Neven
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany
| | - Arianna Servili
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F29280, Plouzané, France
| | - Thomas Vitré
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F29280, Plouzané, France
| | - Lauriane Madec
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F29280, Plouzané, France
| | - Sophie Collet
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F29280, Plouzané, France
| | | | - Felix C Mark
- Department of Integrative Ecophysiology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany
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10
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Feidantsis K, Pörtner HO, Giantsis IA, Michaelidis B. Advances in understanding the impacts of global warming on marine fishes farmed offshore: Sparus aurata as a case study. JOURNAL OF FISH BIOLOGY 2021; 98:1509-1523. [PMID: 33161577 DOI: 10.1111/jfb.14611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/20/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Monitoring variations in proteins involved in metabolic processes, oxidative stress responses, cell signalling and protein homeostasis is a powerful tool for developing hypotheses of how environmental variations affect marine organisms' physiology and biology. According to the oxygen- and capacity-limited thermal tolerance hypothesis, thermal acclimation mechanisms such as adjusting the activities of enzymes of intermediary metabolism and of antioxidant defence mechanisms, inducing heat shock proteins (Hsps) or activating mitogen-activated protein kinases may all shift tolerance windows. Few studies have, however, investigated the molecular, biochemical and organismal responses by fishes to seasonal temperature variations in the field to link these to laboratory findings. Investigation of the impacts of global warming on fishes farmed offsore, in the open sea, can provide a stepping stone towards understanding effects on wild populations because they experience similar environmental fluctuations. Over the last 30 years, farming of the gilthead sea bream Sparus aurata (Linnaeus 1758) has become widespread along the Mediterranean coastline, rendering this species a useful case study. Based on available information, the prevailing seasonal temperature variations expose the species to the upper and lower limits of its thermal range. Evidence for this includes oxygen restriction, reduced feeding, reduced responsiveness to environmental stimuli, plus a range of molecular and biochemical indicators that change across the thermal range. Additionally, close relationships between biochemical pathways and seasonal patterns of metabolism indicate a connection between energy demand and metabolic processes on the one hand, and cellular stress responses such as oxidative stress, inflammation and autophagy on the other. Understanding physiological responses to temperature fluctuations in fishes farmed offshore can provide crucial background information for the conservation and successful management of aquaculture resources in the face of global change.
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Affiliation(s)
- Konstantinos Feidantsis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Hans O Pörtner
- Alfred-Wegener-Institut für Polar-und Meeresforschung, Physiologie Mariner Tiere, Bremerhaven, Germany
| | - Ioannis A Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, Florina, Greece
| | - Basile Michaelidis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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11
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Ruiz-Jarabo I, Gregório SF, Alves A, Mancera JM, Fuentes J. Ocean acidification compromises energy management in Sparus aurata (Pisces: Teleostei). Comp Biochem Physiol A Mol Integr Physiol 2021; 256:110911. [PMID: 33647459 DOI: 10.1016/j.cbpa.2021.110911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 11/19/2022]
Abstract
The effects of ocean acidification mediated by an increase in water pCO2 levels on marine organisms are currently under debate. Elevated CO2 concentrations in the seawater induce several physiological responses in teleost fish, including acid-base imbalances and osmoregulatory changes. However, the consequences of CO2 levels enhancement on energy metabolism are mostly unknown. Here we show that 5 weeks of exposure to hypercapnia (950 and 1800 μatm CO2) altered intermediary metabolism of gilthead seabream (Sparus aurata) compared to fish acclimated to current ocean values (440 μatm CO2). We found that seabream compromises its physiological acid-base balance with increasing water CO2 levels and the subsequent acidification. Intestinal regions (anterior, mid, and rectum) engaged in maintaining this balance are thus altered, as seen for Na+/K+-ATPase and the vacuolar-type H+-ATPase activities. Moreover, liver and muscle counteracted these effects by increasing catabolic routes e.g., glycogenolysis, glycolysis, amino acid turnover, and lipid catabolism, and plasma energy metabolites were altered. Our results demonstrate how a relatively short period of 5 weeks of water hypercapnia is likely to disrupt the acid-base balance, osmoregulatory capacity and intermediary metabolism in S. aurata. However, long-term studies are necessary to fully understand the consequences of ocean acidification on growth and other energy-demanding activities, such as reproduction.
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Affiliation(s)
- I Ruiz-Jarabo
- Centre of Marine Sciences (CCMar), University do Algarve, Campus de Gambelas, Faro, Portugal; Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Campus de Excelencia Internacional del Mar (CEI·MAR), Puerto Real, Cádiz, Spain; Department of Animal Physiology, Faculty of Biological Sciences, University Complutense, Madrid, Spain.
| | - S F Gregório
- Centre of Marine Sciences (CCMar), University do Algarve, Campus de Gambelas, Faro, Portugal
| | - A Alves
- Centre of Marine Sciences (CCMar), University do Algarve, Campus de Gambelas, Faro, Portugal
| | - J M Mancera
- Department of Biology, Faculty of Marine and Environmental Sciences, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Campus de Excelencia Internacional del Mar (CEI·MAR), Puerto Real, Cádiz, Spain
| | - J Fuentes
- Centre of Marine Sciences (CCMar), University do Algarve, Campus de Gambelas, Faro, Portugal.
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Delnat V, Swaegers J, Asselman J, Stoks R. Reduced stress defence responses contribute to the higher toxicity of a pesticide under warming. Mol Ecol 2020; 29:4735-4748. [PMID: 33006234 DOI: 10.1111/mec.15667] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 11/30/2022]
Abstract
There is a pressing need to identify the molecular mechanisms underlying the, often magnifying, interactive effects between contaminants and natural stressors. Here we test our hypothesis that lower general stress defence responses contribute to synergistic interactions between stressors. We focus on the widespread pattern that many contaminants are more toxic at higher temperatures. Specifically, we tested the effects of an environmentally realistic low-effect and high-effect concentration of the pesticide chlorpyrifos under warming at the gene expression level in the northern house mosquito Culex pipiens molestus (Forskal, 1775). By applying the independent action model for combined stressors on RNA-sequencing data, we identified interactive gene expression patterns under combined exposure to chlorpyrifos and warming for general stress defence responses: protection of macromolecules, antioxidant processes, detoxification and energy metabolism/allocation. Most of these general stress defence response genes showed upregulated antagonistic interactions (i.e., were less upregulated than expected under the independent action model). This indicates that when pesticide exposure was combined with warming, the general stress defence responses were no longer buffering increased stress levels, which may contribute to a higher sensitivity to toxicants under warming. These upregulated antagonistic interactions were stronger for the high-effect chlorpyrifos concentration, indicating that exposure to this concentration under warming was most stressful. Our results highlight that quantitative analysis of the frequency and strength of the interaction types of general stress defence response genes, specifically focusing on antagonistic upregulations and synergistic downregulations, may advance our understanding of how natural stressors modify the toxicity of contaminants.
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Affiliation(s)
- Vienna Delnat
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
| | - Janne Swaegers
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
| | - Jana Asselman
- Blue Growth Research Lab, Ghent University, Ostend, Belgium
| | - Robby Stoks
- Laboratory of Evolutionary Stress Ecology and Ecotoxicology, University of Leuven, Leuven, Belgium
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13
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Mazurais D, Servili A, Noel C, Cormier A, Collet S, Leseur R, Le Roy M, Vitré T, Madec L, Zambonino-Infante JL. Transgenerational regulation of cbln11 gene expression in the olfactory rosette of the European sea bass (Dicentrarchus labrax) exposed to ocean acidification. MARINE ENVIRONMENTAL RESEARCH 2020; 159:105022. [PMID: 32662446 DOI: 10.1016/j.marenvres.2020.105022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/12/2020] [Accepted: 05/17/2020] [Indexed: 06/11/2023]
Abstract
Elevated amounts of atmospheric CO2 are causing ocean acidification (OA) that may affect marine organisms including fish species. While several studies carried out in fish revealed that OA induces short term dysfunction in sensory systems including regulation of neurons activity in olfactory epithelium, information on the effects of OA on other physiological processes and actors is scarcer. In the present study we focused our attention on a European sea bass (Dicentrarchus labrax) sghC1q gene, a member of the C1q-domain-containing (C1qDC) protein family. In vertebrates, C1qDC family includes actors involved in different physiological processes including immune response and synaptic organization. Our microsynteny analysis revealed that this sghC1q gene is the orthologous gene in European sea bass to zebrafish (Danio rerio) cbln11 gene. We cloned the full length cbln11 mRNA and identified the different domains (the signal peptide, the coiled coil region and the globular C1q domain) of the deduced protein sequence. Investigation of mRNA expression by qPCR and in situ hybridization revealed that cbln11gene is especially expressed in the non-sensory epithelium of the olfactory rosette at larval and adult stages. The expression of cbln11 mRNA was analysed by qPCR in the first generation (F0) of European sea bass broodstock exposed since larval stages to water pH of 8.0 (control) or 7.6 (predicted for year 2100) and in their offspring (F1) maintained in the environmental conditions of their parents. Our results showed that cbln11 mRNA expression level was lower in larvae exposed to OA then up-regulated at adult stage in the olfactory rosette of F0 and that this up-regulation is maintained under OA at larval and juvenile stages in F1. Overall, this work provides evidence of a transgenerational inheritance of OA-induced up-regulation of cbln11 gene expression in European sea bass. Further studies will investigate the potential immune function of cbln11 gene and the consequences of these regulations, as well as the possible implications in terms of fitness and adaptation to OA in European sea bass.
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Affiliation(s)
- David Mazurais
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France.
| | - Arianna Servili
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
| | - Cyril Noel
- IFREMER, SEBIMER, F-29280, Plouzané, France
| | | | - Sophie Collet
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
| | - Romane Leseur
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
| | - Maelenn Le Roy
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
| | - Thomas Vitré
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
| | - Lauriane Madec
- IFREMER, Univ Brest, CNRS, IRD, LEMAR, F-29280, Plouzané, France
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Evans TG, Logan CA. Mechanisms of biological sensitivity and resistance to a rapidly changing ocean. Comp Biochem Physiol A Mol Integr Physiol 2019; 241:110625. [PMID: 31790807 DOI: 10.1016/j.cbpa.2019.110625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tyler G Evans
- Department of Biological Sciences, California State University East Bay, 25800 Carlos Bee Blvd, Hayward, CA 94542, USA.
| | - Cheryl A Logan
- Department of Marine Science, California State University Monterey Bay, 100 Campus Center, Seaside, CA 93955, USA
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