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Coussau L, Morissette O, Robert D, Sirois P. Drivers of growth in strong year classes of the deepwater redfish (Sebastes mentella) population from the Gulf of St. Lawrence derived from otolith increment-based growth chronologies. JOURNAL OF FISH BIOLOGY 2024. [PMID: 39152736 DOI: 10.1111/jfb.15903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/17/2024] [Accepted: 07/29/2024] [Indexed: 08/19/2024]
Abstract
The case of the deepwater redfish (Sebastes mentella) in the Gulf of St. Lawrence (GSL) is a compelling example of drastic fluctuations in annual recruitment strength, characteristic of spasmodic stocks. After three decades of low abundance, the emergence of three consecutive strong year classes in 2011-2013 resulted in an unprecedented increase in biomass. In spasmodic stocks such as GSL redfish, strong year classes sustain both the biomass and catch for decades. Therefore, understanding the growth dynamics of these cohorts is essential. In the present study, we reconstructed the annual growth rates of redfish using otolith increment-based annual chronology and investigated the drivers of growth variation in redfish strong year classes of the early 2010s and early 1980s. Stock biomass was identified as the main extrinsic driver of redfish growth, suggesting intense competition for food at high conspecific density. Warming of deep waters in the GSL, where adult redfish settle, positively correlated with individual growth. However, recent warming of the cold intermediate layer showed a negative correlation with redfish growth, likely related to the shrinking of the habitat this water mass provides for various redfish cold-water prey rather than to a direct effect of temperature. Reconstruction of redfish annual growth trajectories from birth to capture emphasized the importance of carryover effects in the growth potential of strong year classes. This work provided an important first outlook of the factors driving growth variation in GSL redfish spasmodic stock and explored midterm consequences of density-dependent pressures on biological parameters of the population.
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Affiliation(s)
- Lola Coussau
- Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Quebec, Canada
| | - Olivier Morissette
- Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada
| | - Dominique Robert
- Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Quebec, Canada
| | - Pascal Sirois
- Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada
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Higgins E, Bouyoucos IA, Downie AT, Illing B, Martins APB, Simpfendorfer CA, Rummer JL. How hot is too hot? Thermal tolerance, performance, and preference in juvenile mangrove whiprays, Urogymnus granulatus. J Therm Biol 2024; 124:103943. [PMID: 39151217 DOI: 10.1016/j.jtherbio.2024.103943] [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: 01/18/2024] [Revised: 08/01/2024] [Accepted: 08/03/2024] [Indexed: 08/18/2024]
Abstract
Mangrove habitats can serve as nursery areas for sharks and rays. Such environments can be thermally dynamic and extreme; yet, the physiological and behavioural mechanisms sharks and rays use to exploit such habitats are understudied. This study aimed to define the thermal niche of juvenile mangrove whiprays, Urogymnus granulatus. First, temperature tolerance limits were determined via the critical thermal maximum (CTMax) and minimum (CTMin) of mangrove whiprays at summer acclimation temperatures (28 °C), which were 17.5 °C and 39.9 °C, respectively. Then, maximum and routine oxygen uptake rates (ṀO2max and ṀO2routine, respectively), post-exercise oxygen debt, and recovery were estimated at current (28 °C) and heatwave (32 °C) temperatures, revealing moderate temperature sensitivities (i.e., Q10) of 2.4 (ṀO2max) and 1.6 (ṀO2routine), but opposing effects on post-exercise oxygen uptake. Finally, body temperatures (Tb) of mangrove whiprays were recorded using external temperature loggers, and environmental temperatures (Te) were recorded using stationary temperature loggers moored in three habitat zones (mangrove, reef flat, and reef crest). As expected, environmental temperatures varied between sites depending on depth. Individual mangrove whiprays presented significantly lower Tb relative to Te during the hottest times of the day. Electivity analysis showed tagged individuals selected temperatures from 24.0 to 37.0 °C in habitats that ranged from 21.1 to 43.5 °C. These data demonstrate that mangrove whiprays employ thermotaxic behaviours and a thermally insensitive aerobic metabolism to thrive in thermally dynamic and extreme habitats. Tropical nursery areas may, therefore, offer important thermal refugia for young rays. However, these tropical nursery areas could become threatened by mangrove and coral habitat loss, and climate change.
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Affiliation(s)
- Emily Higgins
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia; Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, QLD, Australia
| | - Ian A Bouyoucos
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia; PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France.
| | - Adam T Downie
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia
| | - Björn Illing
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia
| | - Ana P B Martins
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, QLD, Australia; College of Science and Engineering, James Cook University, Townsville, QLD, Australia
| | - Colin A Simpfendorfer
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, QLD, Australia; College of Science and Engineering, James Cook University, Townsville, QLD, Australia
| | - Jodie L Rummer
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia; College of Science and Engineering, James Cook University, Townsville, QLD, Australia
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Kressler MM, Hunt GL, Stroh AK, Pinnegar JK, Mcdowell J, Watson JW, Gomes MP, Skóra ME, Fenton S, Nash RDM, Vieira R, Rincón-Díaz MP. Twenty-five emerging questions when detecting, understanding, and predicting future fish distributions in a changing climate. JOURNAL OF FISH BIOLOGY 2024; 105:472-481. [PMID: 39158101 DOI: 10.1111/jfb.15895] [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: 06/11/2024] [Revised: 07/01/2024] [Accepted: 07/19/2024] [Indexed: 08/20/2024]
Abstract
The 2023 Annual Symposium of the Fisheries Society of the British Isles hosted opportunities for researchers, scientists, and policy makers to reflect on the state of art of predicting fish distributions and consider the implications to the marine and aquatic environments of a changing climate. The outcome of one special interest group at the Symposium was a collection of questions, organized under five themes, which begin to capture the state of the field and identify priorities for research and management over the coming years. The five themes were Physiology, Mechanisms, Detect and Measure, Manage, and Wider Ecosystems. The questions, 25 of them, addressed concepts which remain poorly understood, are data deficient, and/or are likely to be impacted in measurable or profound ways by climate change. Moving from the first to the last theme, the questions expanded in the scope of their considerations, from specific processes within the individual to ecosystem-wide impacts, but no one question is bigger than any other: each is important in detecting, understanding, and predicting fish distributions, and each will be impacted by an aspect of climate change. In this way, our questions, particularly those concerning unknown mechanisms and data deficiencies, aimed to offer a guide to other researchers, managers, and policy makers in the prioritization of future work as a changing climate is expected to have complex and disperse impacts on fish populations and distributions that will require a coordinated effort to address.
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Affiliation(s)
- Molly M Kressler
- Centre for Ecology and Conservation and the Environment Sustainability Institute, University of Exeter, Cornwall, UK
| | - Georgina L Hunt
- School of Biological Sciences, University of Aberdeen, Aberdeen, UK
| | - Anna K Stroh
- Marine and Freshwater Research Centre, Atlantic Technological University, Galway, Ireland
| | - John K Pinnegar
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft, UK
| | - Jonathan Mcdowell
- School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Joseph W Watson
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft, UK
| | - Marcelo P Gomes
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft, UK
| | - Michał E Skóra
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
- Faculty of Oceanography and Geography, University of Gdańsk, Gdańsk, Poland
| | - Sam Fenton
- School of Biodiversity, One Health & Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - Richard D M Nash
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft, UK
| | - Rui Vieira
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft, UK
| | - Martha Patricia Rincón-Díaz
- Centro para el Estudio de Sistemas Marinos (CESIMAR)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Argentina
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4
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Vicentini M, Calado SLM, Pessati JBK, Perussolo MC, Lirola JR, Marcondes FR, Nascimento ND, Beghetto CL, Vilar MCP, Mela M, Coral LAA, Magalhães VF, Prodocimo V, Cestari MM, Silva de Assis HC. Temperature rise and its influence on the toxic effects caused by cyanotoxins in a neotropical catfish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 353:124166. [PMID: 38754694 DOI: 10.1016/j.envpol.2024.124166] [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: 02/07/2024] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Potentially toxic cyanobacterial blooms (cyanoHABs) have become a problem in public water supply reservoirs. Temperature rise caused by climate change can increase the frequency and intensity of blooms, which may influence the cyanotoxins concentration in the environment. This study aimed to evaluate the effect of the temperature on the responses of a Neotropical catfish exposed to a neurotoxin-rich cyanobacterial crude extract (Raphidiopsis raciborskii T3). Juveniles of Rhamdia quelen were exposed to four treatments, based on study data: control at 25 °C (C25), control at 30 °C (C30), crude extract equivalent to 105 cells.mL-l of R. raciborskii at 25 °C (CE25) and 30 °C (CE30). After 96 h of exposure, the fish were anesthetized and blood was taken. After euthanasia, the gill, posterior kidney, brain, muscle, liver and gonad were sampled for hematological, biochemical, genotoxic and histopathological biomarker analysis. Liver was sampled for proteomic analysis for identification of proteins related to energy production. Water samples were collected at the beginning and the end of the experiment for neurotoxins quantification. Different parameters in both males and females were altered at CE25, evidencing the effects of neurotoxins in freshwater fish. At CE30, a water warming scenario, more effects were observed in females than at 25 °C, such as activation of saxitoxin metabolism pathway and genotoxicity. More damage to macromolecules was observed in females at the higher temperature, demonstrating that the increase in temperature can aggravate the toxicity of neurotoxins produced by R. raciborskii T3.
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Affiliation(s)
- Maiara Vicentini
- Post Graduation Program in Ecology and Conservation, Federal University of Paraná, Brazil
| | - Sabrina L M Calado
- Post Graduation Program in Ecology and Conservation, Federal University of Paraná, Brazil
| | | | - Maiara C Perussolo
- Pharmacology Department, Federal University of Paraná, Brazil; Pelé Pequeno Príncipe Research Institute, Brazil
| | | | | | | | - Camila L Beghetto
- Chemistry and Biology Department, Federal University of Technology - Paraná, Brazil
| | - Mauro C P Vilar
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Brazil
| | - Maritana Mela
- Cell Biology Department, Federal University of Paraná, Brazil
| | - Lucila A A Coral
- Chemistry and Biology Department, Federal University of Technology - Paraná, Brazil
| | - Valéria F Magalhães
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Brazil
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Chung MHJ, Mahmud-Al-Hasan M, Jennions MD, Head ML. Effects of inbreeding and elevated rearing temperatures on strategic sperm investment. Behav Ecol 2024; 35:arae044. [PMID: 38903732 PMCID: PMC11187721 DOI: 10.1093/beheco/arae044] [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: 11/15/2023] [Revised: 03/24/2024] [Accepted: 06/04/2024] [Indexed: 06/22/2024] Open
Abstract
Males often strategically adjust the number of available sperm based on the social context (i.e. sperm priming response), but it remains unclear how environmental and genetic factors shape this adjustment. In freshwater ecosystems, high ambient temperatures often lead to isolated pools of hotter water in which inbreeding occurs. Higher water temperatures and inbreeding can impair fish development, potentially disrupting sperm production. We used guppies (Poecilia reticulata) to investigate how developmental temperature (26 °C, 30 °C) and male inbreeding status (inbred, outbred) influence their sperm priming response. We also tested if sperm priming was affected by whether the female was a relative (sister) and whether she was inbred or outbred. There was no effect of rearing temperature; male inbreeding status alone determined the number of available sperm in response to female presence, her inbreeding status, and her relatedness. Inbred males produced significantly more sperm in the presence of an unrelated, outbred female than when no female was present. Conversely, outbred males did not alter the number of sperm available in response to female presence or relatedness. Moreover, inbred males produced marginally more sperm when exposed to an unrelated female that was outbred rather than inbred, but there was no difference when exposed to an inbred female that was unrelated versus related. Together, a sperm priming response was only observed in inbred males when exposed to an outbred female. Outbred females in our study were larger than inbred females, suggesting that inbred males strategically allocated ejaculate resources toward females in better condition.
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Affiliation(s)
- Meng-Han Joseph Chung
- Division of Ecology and Evolution, Research School of Biology, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Md Mahmud-Al-Hasan
- Division of Ecology and Evolution, Research School of Biology, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Michael D Jennions
- Division of Ecology and Evolution, Research School of Biology, Australian National University, Canberra, Australian Capital Territory 2601, Australia
- Stellenbosch Institute for Advanced Study (STIAS), Wallenberg Centre, Stellenbosch University, Stellenbosch 7600, South Africa
| | - Megan L Head
- Division of Ecology and Evolution, Research School of Biology, Australian National University, Canberra, Australian Capital Territory 2601, Australia
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6
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Borowiec BG, Firth BL, Craig PM. Oxygen consumption rate during recovery from loss of equilibrium induced by warming, hypoxia, or exhaustive exercise in rainbow darter (Etheostoma caeruleum). JOURNAL OF FISH BIOLOGY 2024; 105:23-33. [PMID: 38599790 DOI: 10.1111/jfb.15756] [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: 08/09/2023] [Revised: 03/03/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
Animals routinely encounter environmental (e.g., high temperatures and hypoxia) as well as physiological perturbations (e.g., exercise and digestion) that may threaten homeostasis. However, comparing the relative threat or "disruptiveness" imposed by different stressors is difficult, as stressors vary in their mechanisms, effects, and timescales. We exploited the fact that several acute stressors can induce the loss of equilibrium (LOE) in fish to (i) compare the metabolic recovery profiles of three environmentally relevant stressors and (ii) test the concept that LOE could be used as a physiological calibration for the intensity of different stressors. We focused on Etheostoma caeruleum, a species that routinely copes with environmental fluctuations in temperature and oxygen and that relies on burst swimming to relocate and avoid predators, as our model. Using stop-flow (intermittent) respirometry, we tracked the oxygen consumption rate (MO2) as E. caeruleum recovered from LOE induced by hypoxia (PO2 at LOE), warming (critical thermal maximum, CTmax), or exhaustive exercise. Regardless of the stressor used, E. caeruleum recovered rapidly, returning to routine MO2 within ~3 h. Fish recovering from hypoxia and warming had similar maximum MO2, aerobic scopes, recovery time, and total excess post-hypoxia or post-warming oxygen consumption. Though exhaustive exercise induced a greater maximum MO2 and corresponding higher aerobic scope than warming or hypoxia, its recovery profile was otherwise similar to the other stressors, suggesting that "calibration" to a physiological state such as LOE may be a viable conceptual approach for investigators interested in questions related to multiple stressors, cross tolerance, and how animals cope with challenges to homeostasis.
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Affiliation(s)
| | - Britney L Firth
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Paul M Craig
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
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Soomro SEH, Boota MW, Zwain HM, Rasta M, Hu C, Liu C, Li Y, Li A, Chen J, Zhu C, Ali S, Guo J, Shi X, Soomro MHAA. From lake to fisheries: Interactive effect of climate and landuse changes hit on lake fish catch? ENVIRONMENTAL RESEARCH 2024; 258:119397. [PMID: 38876419 DOI: 10.1016/j.envres.2024.119397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 06/02/2024] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
Global warming and unpredictable nature possess a negative impact on fisheries and the daily activities of other habitats. GIS and remote sensing approach is an effective tool to determine the morphological characteristics of the lake. The present study addresses the interactive effect of climate and landuse changes hit on fish catch in lake fisheries. We used a combination of the landscape disturbance index, vulnerability index, and loss index to construct a complete ecological risk assessment framework based on the landscape structure of regional ecosystems. The results indicate an increase from around 45%-76% in the percentage of land susceptible to moderate to ecological severe risk in the landscape from 2004 to 2023. Since 1950, temperature changes have increased by 0.4%, precipitation has decreased by 6%, and water levels have decreased by 4.2%, based on the results. The results indicate that landuse, water temperature, precipitation, and water depth significantly impact the aquaculture system. The findings strongly suggest integrating possible consequences of environmental change on fish yield for governance modeling techniques to minimize their effects.
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Affiliation(s)
- Shan-E-Hyder Soomro
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China; College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, 450001, China.
| | - Muhammad Waseem Boota
- College of Geography and Environmental Science, Henan University, Kaifeng, 475004, China.
| | - Haider M Zwain
- Water Resources Management Engineering Department, College of Engineering, Al-Qasim Green University, Babylon, 51013, Iraq.
| | - Majid Rasta
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Caihong Hu
- College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, 450001, China.
| | - Chengshuai Liu
- College of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, 450001, China.
| | - Yinghai Li
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Ao Li
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Jijun Chen
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Chunyun Zhu
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Sher Ali
- College of Economic and Management Sciences, China Three Gorges University, Yichang, 443002, China.
| | - Jiali Guo
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Xiaotao Shi
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China.
| | - Mairaj Hyder Alias Aamir Soomro
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, China; School of Civil, Mining, and Environment, University of Wollongong, Northfields Ave, Wollongong, NSW, 2522, Australia.
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Sarre A, Demarcq H, Keenlyside N, Krakstad JO, El Ayoubi S, Jeyid AM, Faye S, Mbaye A, Sidibeh M, Brehmer P. Climate change impacts on small pelagic fish distribution in Northwest Africa: trends, shifts, and risk for food security. Sci Rep 2024; 14:12684. [PMID: 38830920 PMCID: PMC11148102 DOI: 10.1038/s41598-024-61734-8] [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: 01/18/2024] [Accepted: 05/09/2024] [Indexed: 06/05/2024] Open
Abstract
Climate change is recognised to lead to spatial shifts in the distribution of small pelagic fish, likely by altering their environmental optima. Fish supply along the Northwest African coast is significant at both socio-economic and cultural levels. Evaluating the impacts of climatic change on small pelagic fish is a challenge and of serious concern in the context of shared stock management. Evaluating the impact of climate change on the distribution of small pelagic fish, a trend analysis was conducted using data from 2363 trawl samplings and 170,000 km of acoustics sea surveys. Strong warming is reported across the Southern Canary Current Large Marine Ecosystem (CCLME), extending from Morocco to Senegal. Over 34 years, several trends emerged, with the southern CCLME experiencing increases in both wind speed and upwelling intensity, particularly where the coastal upwelling was already the strongest. Despite upwelling-induced cooling mechanisms, sea surface temperature (SST) increased in most areas, indicating the complex interplay of climatic-related stressors in shaping the marine ecosystem. Concomitant northward shifts in the distribution of small pelagic species were attributed to long-term warming trends in SST and a decrease in marine productivity in the south. The abundance of Sardinella aurita, the most abundant species along the coast, has increased in the subtropics and fallen in the intertropical region. Spatial shifts in biomass were observed for other exploited small pelagic species, similar to those recorded for surface isotherms. An intensification in upwelling intensity within the northern and central regions of the system is documented without a change in marine primary productivity. In contrast, upwelling intensity is stable in the southern region, while there is a decline in primary productivity. These environmental differences affected several small pelagic species across national boundaries. This adds a new threat to these recently overexploited fish stocks, making sustainable management more difficult. Such changes must motivate common regional policy considerations for food security and sovereignty in all West African countries sharing the same stocks.
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Affiliation(s)
- Abdoulaye Sarre
- ISRA, Centre de Recherches Océanographiques de Dakar-Thiaroye, CRODT, BP 2241, Dakar, Sénégal
| | - Hervé Demarcq
- MARBEC, IRD, Ifremer, CNRS, University Montpellier, Sète, CS 30171, Avenue Jean Monnet, 34203, Sète cedex, France
| | - Noel Keenlyside
- Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway
| | - Jens-Otto Krakstad
- Institute of Marine Research, P.O. Box 1870, 5817, Nordnes, Bergen, Norway
| | | | - Ahmed Mohamed Jeyid
- Institut Mauritanien de Recherche Océanographique et des Pêches, IMROP, BP 22, Nouadhibou, Mauritanie
| | - Saliou Faye
- ISRA, Centre de Recherches Océanographiques de Dakar-Thiaroye, CRODT, BP 2241, Dakar, Sénégal
| | - Adama Mbaye
- ISRA, Centre de Recherches Océanographiques de Dakar-Thiaroye, CRODT, BP 2241, Dakar, Sénégal
| | | | - Patrice Brehmer
- ISRA, Centre de Recherches Océanographiques de Dakar-Thiaroye, CRODT, BP 2241, Dakar, Sénégal.
- IRD, University Brest, CNRS, Ifremer, LEMAR, SRFC, CSRP, Dakar, Senegal.
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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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10
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Norman H, Munson A, Cortese D, Koeck B, Killen SS. The interplay between sleep and ecophysiology, behaviour and responses to environmental change in fish. J Exp Biol 2024; 227:jeb247138. [PMID: 38860399 PMCID: PMC11213526 DOI: 10.1242/jeb.247138] [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] [Indexed: 06/12/2024]
Abstract
Evidence of behavioural sleep has been observed in every animal species studied to date, but current knowledge of the behaviour, neurophysiology and ecophysiology associated with sleep is concentrated on mammals and birds. Fish are a hugely diverse group that can offer novel insights into a variety of sleep-related behaviours across environments, but the ecophysiological relevance of sleep in fish has been largely overlooked. Here, we systematically reviewed the literature to assess the current breadth of knowledge on fish sleep, and surveyed the diverse physiological effects and behaviours associated with sleep. We also discuss possible ways in which unstudied external factors may alter sleep behaviours. For example, predation risk may alter sleep patterns, as has been shown in mammalian, avian and reptilian species. Other environmental factors - such as water temperature and oxygen availability - have the potential to alter sleep patterns in fish differently than for terrestrial endotherms. Understanding the ecological influences on sleep in fish is vital, as sleep deprivation has the potential to affect waking behaviour and fitness owing to cognitive and physiological impairments, possibly affecting ecological phenomena and sensitivity to environmental stressors in ways that have not been considered.
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Affiliation(s)
- Helena Norman
- School of Biodiversity, One Health, and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK
| | - Amelia Munson
- School of Biodiversity, One Health, and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK
| | - Daphne Cortese
- School of Biodiversity, One Health, and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK
| | - Barbara Koeck
- School of Biodiversity, One Health, and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK
| | - Shaun S. Killen
- School of Biodiversity, One Health, and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, UK
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11
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Ismail ET, El-Son MAM, El-Gohary FA, Zahran E. Prevalence, genetic diversity, and antimicrobial susceptibility of Vibrio spp. infected gilthead sea breams from coastal farms at Damietta, Egypt. BMC Vet Res 2024; 20:129. [PMID: 38561778 PMCID: PMC10986055 DOI: 10.1186/s12917-024-03978-0] [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: 02/10/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Vibriosis is one of the most serious bacterial diseases and causes high morbidity and mortality among cultured sea breams. This study was undertaken to track the surveillance of Vibrio infection and its correlation to environmental factors. A total of 115 gilthead sea breams were collected seasonally from a private earthen pond fish farm in the Shatta area of Damietta, Egypt from September 2022 to July 2023. Physicochemical parameters of water were analyzed, and heavy metal levels were measured. The fish samples were subjected to clinical, bacteriological, Enterobacterial Repetitive Intergenic Consensus (ERIC) fingerprinting, and hematoxylin and Eosin histopathological staining. RESULTS The results revealed significant variations in the water quality parameters over different seasons, in addition to an increase in heavy metals. Naturally infected fish showed external signs and postmortem lesions that were relevant to bacterial infection. Two dominant Vibrio subspecies of bacteria were identified: V. alginolyticus (205 isolates) and V. fluvialis (87 isolates). PCR confirmed the presence of V. alginolyticus using the species-specific primer collagenase at 737 bp. The highest prevalence of V. alginolyticus was detected during the summer season (57.72%), and the lowest prevalence was observed in autumn (39.75%). The correlation analysis revealed a positive relationship between V. alginolyticus and water temperature (r = 0.69). On the other hand, V. fluvialis showed a high prevalence during the autumn season (25.30%) and the lowest prevalence during the summer season (10.56%), where it was negatively correlated with water temperatures (r =-0.03). ERIC fingerprinting showed genetic variation within the Vibrio isolates. Antimicrobial susceptibility testing revealed sensitivity to ciprofloxacin and doxycycline, and resistance to amoxicillin and erythromycin. The multiple antibiotic resistance (MAR) index values for V. alginolyticus and V. fluvialis ranged from 0.3 to 0.7, with a multi-drug resistance pattern to at least three antibiotics. Histopathological alterations in the affected tissues revealed marked hemorrhage, vascular congestion, and hemosiderosis infiltration. CONCLUSION This study provides insights into the potential propagation of waterborne diseases and antibiotic resistance in the environment. Ensuring that the environment does not serve as a reservoir for virulent and contagious Vibrio species is a critical concern for regional aquaculture industries. Therefore, we recommend implementing environmental context-specific monitoring and surveillance tools for microbial resistance.
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Affiliation(s)
- Esraa Tawfeek Ismail
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Mai A M El-Son
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Fatma A El-Gohary
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Eman Zahran
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt.
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12
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Kasihmuddin SM, Cob ZC, Noor NM, Das SK. Effect of different temperature variations on the physiological state of catfish species: a systematic review. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:413-434. [PMID: 38367084 DOI: 10.1007/s10695-024-01323-8] [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: 08/08/2023] [Accepted: 02/10/2024] [Indexed: 02/19/2024]
Abstract
Catfish are a highly diverse group of fish that are found in various regions across the globe. The significance of catfish culture extends to various aspects, including food security, economic advancement, preservation of cultural legacy, and ecological stewardship. The catfish industry is presently encountering unprecedented challenges as a consequence of the variability in water temperature caused by climate change. Temperature is a significant abiotic component that regulates and restricts fish physiology throughout their life cycle. The impact of severe temperatures on various species of catfish is dependent upon the magnitude of the stressor and additional influencing factors. This paper presents an analysis of the effects of temperature fluctuations on various aspects of catfish species, including growth and survival, blood parameters, enzymatic and hormone response, oxygen consumption rates, sound generation and hearing skills, nutritional requirements, and other phenotypic attributes. While this review is certainly not exhaustive, it offers a broad synopsis of the ideal temperature ranges that are most favorable for several catfish species. In-depth research to investigate the interacting impacts of severe temperature occurrences in conjunction with other associated environmental stresses on a wider variety of catfish species is crucial in order to further our understanding of how catfish species will respond to the anticipated climate change in the future.
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Affiliation(s)
- Sonia Mohd Kasihmuddin
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia
| | - Zaidi Che Cob
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia
- Marine Ecosystem Research Centre (EKOMAR), Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia
| | - Noorashikin Md Noor
- Earth Observation Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia.
| | - Simon Kumar Das
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia
- Marine Ecosystem Research Centre (EKOMAR), Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor Darul Ehsan, Malaysia
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13
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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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14
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Pacher K, Hernández-Román N, Juarez-Lopez A, Jiménez-Jiménez JE, Lukas J, Sevinchan Y, Krause J, Arias-Rodríguez L, Bierbach D. Thermal tolerance in an extremophile fish from Mexico is not affected by environmental hypoxia. Biol Open 2024; 13:bio060223. [PMID: 38314873 PMCID: PMC10868586 DOI: 10.1242/bio.060223] [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: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 02/07/2024] Open
Abstract
The thermal ecology of ectotherm animals has gained considerable attention in the face of human-induced climate change. Particularly in aquatic species, the experimental assessment of critical thermal limits (CTmin and CTmax) may help to predict possible effects of global warming on habitat suitability and ultimately species survival. Here we present data on the thermal limits of two endemic and endangered extremophile fish species, inhabiting a geothermally heated and sulfur-rich spring system in southern Mexico: The sulfur molly (Poecilia sulphuraria) and the widemouth gambusia (Gambusia eurystoma). Besides physiological challenges induced by toxic hydrogen sulfide and related severe hypoxia during the day, water temperatures have been previously reported to exceed those of nearby clearwater streams. We now present temperature data for various locations and years in the sulfur spring complex and conducted laboratory thermal tolerance tests (CTmin and CTmax) both under normoxic and severe hypoxic conditions in both species. Average CTmax limits did not differ between species when dissolved oxygen was present. However, critical temperature (CTmax=43.2°C) in P. sulphuraria did not change when tested under hypoxic conditions, while G. eurystoma on average had a lower CTmax when oxygen was absent. Based on this data we calculated both species' thermal safety margins and used a TDT (thermal death time) model framework to relate our experimental data to observed temperatures in the natural habitat. Our findings suggest that both species live near their thermal limits during the annual dry season and are locally already exposed to temperatures above their critical thermal limits. We discuss these findings in the light of possible physiological adaptions of the sulfur-adapted fish species and the anthropogenic threats for this unique system.
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Affiliation(s)
- Korbinian Pacher
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12487 Berlin, Germany
- Faculty of Life Sciences, Albrecht Daniel Thaer-Institute, Humboldt University of Berlin, 10115 Berlin, Germany
| | - Natalia Hernández-Román
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma Tabasco, 86150 Villahermosa, Mexico
| | - Alejandro Juarez-Lopez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma Tabasco, 86150 Villahermosa, Mexico
| | | | - Juliane Lukas
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12487 Berlin, Germany
- Faculty of Life Sciences, Albrecht Daniel Thaer-Institute, Humboldt University of Berlin, 10115 Berlin, Germany
| | - Yunus Sevinchan
- Science of intelligence cluster has the state of a department at TU Berlin, Excellence Cluster Science of Intelligence, Technische Universität Berlin, 10587 Berlin, Germany
| | - Jens Krause
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12487 Berlin, Germany
- Faculty of Life Sciences, Albrecht Daniel Thaer-Institute, Humboldt University of Berlin, 10115 Berlin, Germany
- Science of intelligence cluster has the state of a department at TU Berlin, Excellence Cluster Science of Intelligence, Technische Universität Berlin, 10587 Berlin, Germany
| | - Lenin Arias-Rodríguez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma Tabasco, 86150 Villahermosa, Mexico
| | - David Bierbach
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, 12487 Berlin, Germany
- Faculty of Life Sciences, Albrecht Daniel Thaer-Institute, Humboldt University of Berlin, 10115 Berlin, Germany
- Science of intelligence cluster has the state of a department at TU Berlin, Excellence Cluster Science of Intelligence, Technische Universität Berlin, 10587 Berlin, Germany
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15
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Friedland KD, Ganley LC, Dimarchopoulou D, Gaichas S, Morse RE, Jordaan A. Change in body size in a rapidly warming marine ecosystem: Consequences of tropicalization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166117. [PMID: 37572904 DOI: 10.1016/j.scitotenv.2023.166117] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/14/2023]
Abstract
Climate change is profoundly affecting the physical environment and biota of the Northeast U.S. Continental Shelf ecosystem. To understand adaptations to climate change, in particular warming temperatures, we used bottom trawl survey data to describe the size of individual fish and macroinvertebrates. Using species distribution models to estimate abundance and biomass, we determined body size in weight for all modeled species. We demonstrate a tendency for increased abundance and biomass and a concomitant decline in body size over time. An analysis of length frequency data supports this assertion. There was no trend in the combined anthropogenic removals from the ecosystem, i.e. catches, suggesting a limited role of fisheries in influencing these changes. The changes in the fish and macroinvertebrate communities are consistent with the hypothesis of a tropicalization of this ecosystem, where the ecosystem experiences a change in diversity, abundance, biomass, and the size of individuals consistent with lower latitudes. The changes in how productivity is expressed in the ecosystem factors into how human populations relate to it; in a practical sense, change in body size will likely influence the strategies and efficiencies of harvest procedures and the industries built to support them.
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Affiliation(s)
| | - Laura C Ganley
- Anderson Cabot Center for Ocean Life, New England Aquarium, Boston, MA, 02110, USA
| | - Donna Dimarchopoulou
- Biology Department, Dalhousie University, 1355 Oxford St, PO Box 15000, Halifax, NS, B3H4R2, Canada; Biology Department, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Woods Hole, MA, 02540, USA
| | - Sarah Gaichas
- Northeast Fisheries Science Center, 166 Water St, Woods Hole, MA, 02543, USA
| | - Ryan E Morse
- Northeast Fisheries Science Center, Narragansett, RI, 02882, USA; CASE Consultants International, 1 Haywood St Suite 451, Asheville, NC, 28801, USA
| | - Adrian Jordaan
- Gloucester Marine Station and Department of Environmental Conservation, University of Massachusetts Amherst, Holdsworth Hall, 160 Holdsworth Way, Amherst, MA, 01003, USA
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16
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Pregler KC, Lu X, Valentine GP, Kim S, Kanno Y. Temperature variation generates interspecific synchrony but spatial asynchrony in survival for freshwater fish communities. Ecol Evol 2023; 13:e10700. [PMID: 37964790 PMCID: PMC10641305 DOI: 10.1002/ece3.10700] [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: 04/18/2023] [Revised: 09/08/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023] Open
Abstract
Identifying environmental drivers of demographic variation is key to predicting community-level impacts in response to global change. Climate conditions can synchronize population trends and can occur both spatially for populations of the same species, and across multiple species within the same local community. The aim of this study was to investigate patterns of temporal variation in survival for freshwater fish communities in two geographically close but isolated sites and to understand the amount of variation accounted for by abiotic covariates including metrics of water temperature and stream flow. Using mark-recapture data, we estimated bi-monthly apparent survival in a Bayesian Cormack-Jolly-Seber framework. The model included random effects to quantify temporal variance to understand species synchrony with the rest of the fish community and between sites. Study species included bluehead chub (Nocomis leptocephalus), creek chub (Semotilus atromaculatus), and striped jumprock (Moxostoma rupiscartes) in the southeastern USA. Results showed that survival varied over time and periods of low survival were associated with higher mean water temperature. However, temporal patterns of survival differed among species and between sites, where survival was synchronous among species within a site but asynchronous between sites for the same species despite their spatial proximity. Study streams differed in summer thermal regimes, which resulted in contrasting summer survival patterns, suggesting sensitivity of these fishes to warming. We found that interspecific synchrony was greater than spatial synchrony, where regional drivers such as temperature may interact with local habitat leading to differences in survival patterns at fine spatial scales. Finally, these findings show that changes in the timing and magnitude of environmental conditions can be critical in limiting vital rates and that some populations may be more resilient to climate variation than others.
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Affiliation(s)
- Kasey C. Pregler
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColoradoUSA
- Department of Forestry and Environmental ConservationClemson UniversityClemsonSouth CarolinaUSA
| | - Xinyi Lu
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColoradoUSA
| | - George P. Valentine
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColoradoUSA
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColoradoUSA
| | - Seoghyun Kim
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColoradoUSA
- Department of Forestry and Environmental ConservationClemson UniversityClemsonSouth CarolinaUSA
| | - Yoichiro Kanno
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColoradoUSA
- Department of Forestry and Environmental ConservationClemson UniversityClemsonSouth CarolinaUSA
- Graduate Degree Program in EcologyColorado State UniversityFort CollinsColoradoUSA
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17
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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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18
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Porter ES, Gamperl AK. Cardiorespiratory physiology and swimming capacity of Atlantic salmon (Salmo salar) at cold temperatures. J Exp Biol 2023; 226:jeb245990. [PMID: 37661722 PMCID: PMC10499030 DOI: 10.1242/jeb.245990] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023]
Abstract
We investigated how acclimation to 8, 4 and 1°C, and acute cooling from 8 to 1°C, affected the Atlantic salmon's aerobic and anaerobic metabolism, and cardiac function, during a critical swim speed (Ucrit) test. This study revealed several interesting temperature-dependent effects. First, while differences in resting heart rate (fH) between groups were predictable based on previous research (range ∼28-65 beats min-1), with values for 1°C-acclimated fish slightly higher than those of acutely exposed conspecifics, the resting cardiac output () of 1°C-acclimated fish was much lower and compensated for by a higher resting blood oxygen extraction (ṀO2/). In contrast, the acutely exposed fish had a ∼2-fold greater resting stroke volume (VS) compared with that of the other groups. Second, increases in fH (1.2- to 1.4-fold) contributed little to during the Ucrit test, and the contributions of (VS) versus ṀO2/ to aerobic scope (AS) were very different in the two groups tested at 1°C (1°C-acclimated and 8-1°C fish). Finally, Ucrit was 2.08 and 1.69 body lengths (BL) s-1 in the 8 and 4°C-acclimated groups, but only 1.27 and 1.44 BL s-1 in the 1°C-acclimated and 8-1°C fish, respectively - this lower value in 1°C versus 8-1°C fish despite higher values for maximum metabolic rate and AS. These data: support recent studies which suggest that the capacity to increase fH is constrained at low temperatures; show that cardiorespiratory function at cold temperatures, and its response to increased demands, depends on exposure duration; and suggest that AS does not constrain swimming capacity in salmon when chronically exposed to temperatures approaching their lower limit.
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Affiliation(s)
- Emma S. Porter
- 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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19
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Motta JHS, Glória LS, Radael MC, Mattos DC, Cardoso LD, Vidal-Júnior MV. Effect of temperature on embryonic development and first exogenous feeding of goldfish Carassius auratus (Linnaeus, 1758). BRAZ J BIOL 2023; 83:e270943. [PMID: 37466511 DOI: 10.1590/1519-6984.270943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 06/14/2023] [Indexed: 07/20/2023] Open
Abstract
Goldfish or Kinguio is a widely marketed species worldwide due to the ornamental market. There is some lack of acknowledgment of the production of the species under specific climatic conditions. To evaluate the effect of temperature on embryonic development and the first exogenous feeding of goldfish, an experiment was proposed. Fifteen incubators, organized in five treatments (18, 22, 26, 30, and 34 °C) with three replications each, were used to keep the fertilized goldfish eggs until the first exogenous feeding of the larvae. The main development events were observed to understand the possible effects of these temperatures on embryos and larvae of the species. Temperature influences embryo development and the time of first exogenous feeding of goldfish. The temperature of 34 °C was lethal to the species causing 100% of anomalies in the embryos and larvae. The experiment data allow us to conclude that the species presents a maximum thermal limit during embryogenesis, and these data are important to the aquaculture industry and to understand the effect of climate changes on goldfish. The data obtained in this experiment will assist in the management of invasive species and production of the species (aquaculture).
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Affiliation(s)
- J H S Motta
- Universidade Estácio de Sá - UNESA, Campos dos Goytacazes, RJ, Brasil
| | - L S Glória
- Purdue University, West Lafayette, IN, United States of America
| | - M C Radael
- Universidade Federal do Oeste do Pará - UFOPA, Monte Alegre, PA, Brasil
| | - D C Mattos
- Instituto Federal do Espírito Santo - IFES, Piúma, ES, Brasil
| | - L D Cardoso
- Universidade Federal de Juiz de Fora - UFJF, Juiz de Fora, MG, Brasil
| | - M V Vidal-Júnior
- Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, RJ, Brasil
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20
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Conte M, de Campos DF, Eme J. Effective practices for thermal tolerance polygon experiments using mottled catfish Corydoras paleatus. J Therm Biol 2023; 115:103616. [PMID: 37437371 DOI: 10.1016/j.jtherbio.2023.103616] [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: 11/28/2022] [Revised: 06/06/2023] [Accepted: 06/06/2023] [Indexed: 07/14/2023]
Abstract
Temperature is an important environmental factor that affects how organisms allocate metabolic resources to physiological processes. Laboratory experiments that determine absolute thermal limits for representative species are important for understanding how fishes are affected by climate change. Critical Thermal Methodology (CTM) and Chronic Lethal Methodology (CLM) experiments were utilized to construct a complete thermal tolerance polygon for the South American fish species, Mottled catfish (Corydoras paleatus). Mottled catfish showed Chronic Lethal Maxima (CLMax) of 34.9 ± 0.52 °C and Chronic Lethal Minima (CLMin) of 3.8 ± 0.08 °C. Fish were chronically acclimated (∼2 weeks) to 6 temperatures ranging from 7.2 ± 0.05 °C →32.2 ± 0.16 °C (7 °C, 12 °C, 17 °C, 22 °C, 27 °C, and 32 °C), and CTM used to estimate upper and lower acute temperature tolerance. Linear regressions of Critical Thermal Maxima (CTMax) and Minima (CTMin) data with each acclimation temperature were used along with CLMax and CLMin to create a complete thermal tolerance polygon. The highest CTMax was 38.4 ± 0.60 °C for fish acclimated to 32.2 ± 0.16 °C, and the lowest CTMin was 3.36 ± 1.84 °C for fish acclimated to 7.2 ± 0.05 °C. Mottled catfish have a polygon measuring 785.7°C2, and the slope of the linear regressions showed the species gained 0.55 °C and 0.32 °C of upper and lower tolerance per degree of acclimation temperature, respectively. We compared slopes of CTMax or CTMin regression lines to each other using a set of comparisons between 3, 4, 5, or 6 acclimation temperatures. Our data demonstrated that 3 acclimation temperatures were as sufficient as 4 → 6 to pair with estimates of chronic upper and lower thermal limits for accurately determining a complete thermal tolerance polygon. Construction of this species' complete thermal tolerance polygon provides a template for other researchers. The following is sufficient to generate a complete thermal tolerance polygon: Three chronic acclimation temperatures that are spread somewhat evenly across a species' thermal range, include an estimation of CLMax and CLMin, and are followed by CTMax and CTMin measurements.
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Affiliation(s)
- Madison Conte
- Department of Biological Sciences, California State University San Marcos, 333 S. Twin Oaks Blvd., San Marcos, CA, USA.
| | - Derek Felipe de Campos
- Laboratory of Ecophysiology and Molecular Evolution, Biodiversity Coordination, National Institute for the Amazonian Research, Av. Andre Araujo, 2936, Manaus, AM, Brazil.
| | - John Eme
- Department of Biological Sciences, California State University San Marcos, 333 S. Twin Oaks Blvd., San Marcos, CA, USA.
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21
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Earhart ML, Blanchard TS, Morrison PR, Strowbridge N, Penman RJ, Brauner CJ, Schulte PM, Baker DW. Identification of upper thermal thresholds during development in the endangered Nechako white sturgeon with management implications for a regulated river. CONSERVATION PHYSIOLOGY 2023; 11:coad032. [PMID: 37228298 PMCID: PMC10205467 DOI: 10.1093/conphys/coad032] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
Climate change-induced warming effects are already evident in river ecosystems, and projected increases in temperature will continue to amplify stress on fish communities. In addition, many rivers globally are impacted by dams, which have many negative effects on fishes by altering flow, blocking fish passage, and changing sediment composition. However, in some systems, dams present an opportunity to manage river temperature through regulated releases of cooler water. For example, there is a government mandate for Kenney dam operators in the Nechako river, British Columbia, Canada, to maintain river temperature <20°C in July and August to protect migrating sockeye salmon (Oncorhynchus nerka). However, there is another endangered fish species inhabiting the same river, Nechako white sturgeon (Acipenser transmontanus), and it is unclear if these current temperature regulations, or timing of the regulations, are suitable for spawning and developing sturgeon. In this study, we aimed to identify upper thermal thresholds in white sturgeon embryos and larvae to investigate if exposure to current river temperatures are playing a role in recruitment failure. We incubated embryos and yolk-sac larvae in three environmentally relevant temperatures (14, 18 and 21°C) throughout development to identify thermal thresholds across different levels of biological organization. Our results demonstrate upper thermal thresholds at 21°C across physiological measurements in embryo and yolk-sac larvae white sturgeon. Before hatch, both embryo survival and metabolic rate were reduced at 21°C. After hatch, sublethal consequences continued at 21°C because larval sturgeon had decreased thermal plasticity and a dampened transcriptional response during development. In recent years, the Nechako river has reached 21°C by the end of June, and at this temperature, a decrease in sturgeon performance is evident in most of the traits measured. As such, the thermal thresholds identified here suggest current temperature regulations may not be suitable for developing white sturgeon and future recruitment.
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Affiliation(s)
- Madison L Earhart
- Corresponding author: Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada. . Tel.: 204-799-9338
| | - Tessa S Blanchard
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
| | - Phillip R Morrison
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
- Department of Resource Management and Protection, and Biology Department, Vancouver Island University, 900 Fifth Street Nanaimo, BC V9R 5S5, Canada
| | - Nicholas Strowbridge
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
- School of Biodiversity, One Health, & Veterinary Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, 464 Bearsden Rd, Bearsden, Glasgow G61 1QH, UK
| | - Rachael J Penman
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
- Instreams fisheries research, 2323 Boundary Rd Unit 115, Vancouver, BC V5M 4V8, Canada
| | - Colin J Brauner
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
| | - Patricia M Schulte
- Department of Zoology, University of British Columbia, 6270 University Blvd. Vancouver, BC V6T 1Z4, Canada
| | - Daniel W Baker
- Department of Fisheries and Aquaculture, Vancouver Island University, 900 Fifth Street, Nanaimo, BC V9R 5S5, Canada
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22
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Zhou C, Gao P, Wang J. Comprehensive Analysis of Microbiome, Metabolome, and Transcriptome Revealed the Mechanisms of Intestinal Injury in Rainbow Trout under Heat Stress. Int J Mol Sci 2023; 24:ijms24108569. [PMID: 37239914 DOI: 10.3390/ijms24108569] [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: 04/04/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Global warming is one of the most common environmental challenges faced by cold-water fish farming. Intestinal barrier function, gut microbiota, and gut microbial metabolites are significantly altered under heat stress, posing serious obstacles to the healthy artificial culture of rainbow trout. However, the molecular mechanisms underlying intestinal injury in rainbow trout under heat stress remain unclear. In the present study, the optimal growth temperature for rainbow trout (16 °C) was used for the control group, and the maximum temperature tolerated by rainbow trout (24 °C) was used for the heat stress group, which was subjected to heat stress for 21 days. The mechanism of intestinal injury in rainbow trout under heat stress was explored by combining animal histology, 16S rRNA gene amplicon sequencing, ultra-high performance liquid chromatography-mass spectrometry, and transcriptome sequencing. The results showed that the antioxidant capacity of rainbow trout was enhanced under heat stress, the levels of stress-related hormones were significantly increased, and the relative expression of genes related to heat stress proteins was significantly increased, indicating that the heat stress model of rainbow trout was successfully established. Secondly, the intestinal tract of rainbow trout showed inflammatory pathological characteristics under heat stress, with increased permeability, activation of the inflammatory factor signaling pathway, and increased relative expression of inflammatory factor genes, suggesting that the intestinal barrier function was impaired. Thirdly, heat stress caused an imbalance of intestinal commensal microbiota and changes in intestinal metabolites in rainbow trout, which participated in the stress response mainly by affecting lipid metabolism and amino acid metabolism. Finally, heat stress promoted intestinal injury in rainbow trout by activating the peroxisome proliferator-activated receptor-α signaling pathway. These results not only expand the understanding of fish stress physiology and regulation mechanisms, but also provide a scientific basis for healthy artificial culture and the reduction of rainbow trout production costs.
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Affiliation(s)
- Changqing Zhou
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Grassland Agriculture Engineering Center, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
- College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Pan Gao
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Grassland Agriculture Engineering Center, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Jianlin Wang
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Grassland Agriculture Engineering Center, Ministry of Education, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
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23
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Pringle BA, Duncan MI, Winkler AC, Mafwila S, Jagger C, McKeown NJ, Shaw PW, Henriques R, Potts WM. Ocean warming favours a northern Argyrosomus species over its southern congener, whereas preliminary metabolic evidence suggests that hybridization may promote their adaptation. CONSERVATION PHYSIOLOGY 2023; 11:coad026. [PMID: 37179704 PMCID: PMC10170327 DOI: 10.1093/conphys/coad026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 03/21/2023] [Accepted: 04/14/2023] [Indexed: 05/15/2023]
Abstract
Anthropogenic-induced climate change is having profound impacts on aquatic ecosystems, and the resilience of fish populations will be determined by their response to these impacts. The northern Namibian coast is an ocean warming hotspot, with temperatures rising faster than the global average. The rapid warming in Namibia has had considerable impacts on marine fauna, such as the southern extension of the distribution of Argyrosomus coronus from southern Angola into northern Namibian waters, where it now overlaps and hybridizes with the closely related Namibian species, A. inodorus. Understanding how these species (and their hybrids) perform at current and future temperatures is vital to optimize adaptive management for Argyrosomus species. Intermittent flow-through respirometry was used to quantify standard and maximum metabolic rates for Argyrosomus individuals across a range of temperatures. The modelled aerobic scope (AS) of A. inodorus was notably higher at cooler temperatures (12, 15, 18 and 21°C) compared with that of A. coronus, whereas the AS was similar at 24°C. Although only five hybrids were detected and three modelled, their AS was in the upper bounds of the models at 15, 18 and 24°C. These findings suggest that the warming conditions in northern Namibia may increasingly favour A. coronus and promote the poleward movement of the leading edge of their southern distribution. In contrast, the poor aerobic performance of both species at cold temperatures (12°C) suggests that the cold water associated with the permanent Lüderitz Upwelling Cell in the south may constrain both species to central Namibia. This is most concerning for A. inodorus because it may be subjected to a considerable coastal squeeze.
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Affiliation(s)
- Brett A Pringle
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
- Advance Africa Management Services, Johannesburg, South Africa
| | - Murray I Duncan
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
- University of Seychelles and Blue Economy Research Institute, Anse Royale, Mahe, Seychelles
| | - Alexander C Winkler
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
| | - Samuel Mafwila
- Department of Fisheries and Aquatic Sciences, Sam Nujoma Campus, University of Namibia, Henties Bay, Namibia
| | - Charmaine Jagger
- Department of Fisheries and Aquatic Sciences, Sam Nujoma Campus, University of Namibia, Henties Bay, Namibia
- Ministry of Fisheries and Marine Resources, Swakopmund, Namibia
| | - Niall J McKeown
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK
| | - Paul W Shaw
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK
| | - Romina Henriques
- Marine Genomics Group, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Warren M Potts
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
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24
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Naha A, Antony S, Nath S, Sharma D, Mishra A, Biju DT, Madhavan A, Binod P, Varjani S, Sindhu R. A hypothetical model of multi-layered cost-effective wastewater treatment plant integrating microbial fuel cell and nanofiltration technology: A comprehensive review on wastewater treatment and sustainable remediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121274. [PMID: 36804140 DOI: 10.1016/j.envpol.2023.121274] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Wastewater management has emerged as an uprising concern that demands immediate attention from environmentalists worldwide. Indiscriminate and irrational release of industrial and poultry wastes, sewage, pharmaceuticals, mining, pesticides, fertilizers, dyes and radioactive wastes, contribute immensely to water pollution. This has led to the aggravation of critical health concerns as evident from the uprising trends of antimicrobial resistance, and the presence of xenobiotics and pollutant traces in humans and animals due to the process of biomagnification. Therefore, the development of reliable, affordable and sustainable technologies for the supply of fresh water is the need of the hour. Conventional wastewater treatment often involves physical, chemical, and biological processes to remove solids from the effluent, including colloids, organic matter, nutrients, and soluble pollutants (metals, organics). Synthetic biology has been explored in recent years, incorporating both biological and engineering concepts to refine existing wastewater treatment technologies. In addition to outlining the benefits and drawbacks of the current technologies, this review addresses novel wastewater treatment techniques, especially those using dedicated rational design and engineering of organisms and their constituent parts. Furthermore, the review hypothesizes designing a multi-bedded wastewater treatment plant that is highly cost-efficient, sustainable and requires easy installation and handling. The novel setup envisages removing all the major wastewater pollutants, providing water fit for household, irrigation and storage purposes.
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Affiliation(s)
- Aniket Naha
- Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Thriuvalla-689 101, Kerala, India
| | - Sherly Antony
- Department of Microbiology, Pushpagiri Institute of Medical Sciences and Research Centre, Thiruvalla-689 101, Kerala, India
| | - Soumitra Nath
- Department of Biotechnology, Gurucharan College, Silchar-788004, India
| | - Dhrubjyoti Sharma
- Biological Engineering, Indian Institute of Technology, Gandhinagar, Palaj, Gandhinagar, 382 355 India
| | - Anamika Mishra
- Department of Biotechnology, Vellore Institute of Technology, Vellore, 632 014, India
| | - Devika T Biju
- Department of Biomedical Science, University of Salford, England, M5 4WT, United Kingdom
| | - Aravind Madhavan
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam-690525, Kerala, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695 019, Kerala, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201 002, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India
| | - Raveendran Sindhu
- Department of Food Technology, T K M Institute of Technology, Kollam-691 505, Kerala, India.
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25
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Ward CA, Tunney TD, McCann KS. Managing aquatic habitat structure for resilient trophic interactions. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2023; 33:e2814. [PMID: 36708058 DOI: 10.1002/eap.2814] [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: 09/10/2021] [Revised: 08/25/2022] [Accepted: 12/08/2022] [Indexed: 06/18/2023]
Abstract
Structural habitat (the three-dimensional arrangement of physical matter, abiotic and biotic, at a location) is a foundational element for the resilience and maintenance of biodiversity, yet anthropogenic development is driving the global simplification of aquatic environments. Resource managers regularly seek to conserve aquatic food webs by increasing structural habitat complexity with expected benefits to fisheries; however, the global effectiveness of such actions is unclear. Our synthesis and theoretical analyses found that the response of a consumer-resource interaction (predatory sportfish and forage fish prey) to the addition of prey refuge habitat differed among systems with low and high rates of biomass transfer from resource to consumer (i.e., biomass potential); stabilization was not the rule. Greater prey refuge habitat availability tended to stabilize systems characterized by high biomass potential while simultaneously increasing consumer densities. In contrast, increasing prey refuge habitat availability in systems characterized by low biomass potential tended to mute energy transfer and moved consumer densities toward local extinction. Importantly, biomass potential and prey refuge can have antagonistic effects on stability and relative consumer densities, and it is therefore important to consider the local conditions of a system when using habitat manipulation as a management measure. Further development of our context-dependent perspective to whole food webs, and across different environments, may help to guide structural habitat management to better restore and protect aquatic ecosystems.
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Affiliation(s)
- Charlotte A Ward
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
| | - Tyler D Tunney
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
- Fisheries and Oceans Canada, Gulf Region, Freshwater Habitat Section, Centre for Effectiveness Science, Moncton, New Brunswick, Canada
| | - Kevin S McCann
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
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26
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Liu F, Zhang T, He Y, Zhan W, Xie Q, Lou B. Integration of transcriptome and proteome analyses reveals the regulation mechanisms of Larimichthys polyactis liver exposed to heat stress. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108704. [PMID: 36958506 DOI: 10.1016/j.fsi.2023.108704] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/11/2023] [Accepted: 03/21/2023] [Indexed: 06/18/2023]
Abstract
Small yellow croaker (Larimichthys polyactis) is one of the most economically important marine fishery species. L. polyactis aquaculture has experienced stress response and the frequent occurrence of diseases, bringing huge losses to the aquaculture industry. Little is known about the regulation mechanism of heat stress response in L. polyactis. In this study, to provide an overview of the heat-tolerance mechanism of L. polyactis, the transcriptome and proteome of the liver of L. polyactis on the 6 h after high temperature (32 °C) treatment were analyzed using Illumina HiSeq 4000 platform and isobaric tag for relative and absolute quantitation (iTRAQ). A total of 3700 upregulated and 1628 downregulated genes (differentially expressed genes, DEGs) were identified after heat stress in L. polyactis. Also, 198 differentially expressed proteins (DEPs), including 117 upregulated and 81 downregulated proteins, were identified. Integrative analysis revealed that 72 genes were significantly differentially expressed at transcriptome and protein levels. Functional analysis showed that arginine biosynthesis, tyrosine metabolism, pentose phosphate pathway, starch and sucrose metabolism, and protein processing in the endoplasmic reticulum were the main pathways responding to heat stress. Among the pathways, protein processing in the endoplasmic reticulum was enriched by most DEGs/DEPs, which suggests that this pathway may play a more important role in the heat stress response. Further insights into the pathway revealed that transcripts and proteins, especially HSPs and PDIs, were differentially expressed in response to heat stress. These findings contribute to existing data describing the fish response to heat stress and provide information about protein levels, which are of great significance to a deeper understanding of the heat stress responding regulation mechanism in L. polyactis and other fish species.
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Affiliation(s)
- Feng Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
| | - Tianle Zhang
- College of Life Sciences, China Jiliang University, Hangzhou, 310018, China
| | - Yu He
- College of Life Sciences, Huzhou Normal University, Huzhou, 313000, China
| | - Wei Zhan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Qingping Xie
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Bao Lou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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27
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Rangaswami XL, Goldsmith AM, Khan JM, Robertson CR, Lopez RR, Randklev CR. Thermal tolerances of Popenaias popeii (Texas hornshell) and its host fish from the Rio Grande Basin, Texas. Sci Rep 2023; 13:4603. [PMID: 36944661 PMCID: PMC10030872 DOI: 10.1038/s41598-023-29460-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 02/06/2023] [Indexed: 03/23/2023] Open
Abstract
Freshwater mussels are particularly sensitive to hydrologic changes, including streamflow and temperature, resulting in global decline. The Devils River in south-central Texas harbors the endangered freshwater mussel Popenaias popeii (Unionidae; Texas hornshell). There is concern that water withdrawals from the underlying aquifer may be negatively impacting this species. To assess this risk, we evaluated upper thermal tolerances (LT05 and LT50) of larvae (glochidia) and juveniles from two sites. After being acclimated to 27 °C, glochidia were subjected to five experimental temperatures (30, 32, 34, 36, and 38 °C) and non-acclimated control (20 °C) for 12-h and 24-h while juveniles were subjected to three experimental temperatures (30, 32, and 36 °C) and non-acclimated control (20 °C) for 96-h. We overlaid tolerance estimates against in situ water temperature and discharge data to evaluate thermal exceedances. Additionally, we reviewed upper thermal tolerances of P. popeii's presumed host fish (Carpiodes carpio, Cyprinellas lutrensis, and Moxostoma congestum) and their congeners. Stream temperatures only occasionally exceeded mussel LT05/50 and fish CLMax/LTMax, likely due to the Devils River's large spring input, highlighting the importance of protecting spring flows. We provide a practical framework for assessing hydrological needs of aquatic ectotherms, including the parasite-host relationship, which can be used to optimize environmental management.
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Affiliation(s)
- Xenia L Rangaswami
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA.
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA.
| | - Amanda M Goldsmith
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA
| | - Jennifer M Khan
- U.S. Fish and Wildlife Service, 2005 Northeast Green Oaks Boulevard, Suite 140, Arlington, TX, 76006, USA
| | - Clinton R Robertson
- Texas Parks and Wildlife Department, River Studies Program, 505 Staples Rd., Bldg. 1, San Marcos, TX, 78666, USA
| | - Roel R Lopez
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
| | - Charles R Randklev
- Texas A&M Natural Resources Institute, 578 John Kimbrough Blvd. 2260 TAMU, College Station, TX, 77843, USA
- Texas A&M AgriLife Research and Extension Center at Dallas, 17360 Coit Rd., Dallas, TX, 75252, USA
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28
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Cardoso PG, Gonçalves O, Cavalheri T, Amorim VE, Cao W, Alexandrino DAM, Jia Z, Carvalho MF, Vaz-Pires P, Ozório ROA. Combined Effects of Temperature and Dietary Lipid Level on Body Composition, Growth, and Freshness Profile in European Seabass, Dicentrarchus labrax. Animals (Basel) 2023; 13:ani13061068. [PMID: 36978609 PMCID: PMC10044243 DOI: 10.3390/ani13061068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/19/2023] [Accepted: 03/12/2023] [Indexed: 03/18/2023] Open
Abstract
A fish trial was carried out to evaluate the combined effects of temperature and dietary lipid level on the body composition, growth performance, and freshness profile of the European seabass (Dicentrarchus labrax). Fish were kept for 56 days at 20 °C and 24 °C and fed on two diets, with 16% and 20% lipid. At the end of the trial, fish were euthanized at two temperature conditions (0.6 °C or −0.6 °C) and kept on ice for 10 days at 4 °C to evaluate their freshness condition. Findings demonstrated that fish reared at 24 °C presented a lower lipid level and a higher daily growth index than those at 20 °C. Additionally, sensory analysis (Quality Index Method—QIM) and microbiological analysis revealed that fish reared at 24 °C showed better freshness conditions than those at 20 °C. However, the 16S rRNA metabarcoding analyses revealed a higher proliferation of genera associated with fish-spoiling bacteria in the skin microbiome of fish reared at 24 °C, i.e., Vibrio and Acinetobacter, which was not observed in the skin microbiome of fish reared at 20 °C. Nevertheless, the dietary lipid level did not have any influence on fish freshness. Therefore, our data suggest that the increase in temperature to 24 °C is beneficial for the growth and freshness profile (lower QIM and lower CFUs/cm2) of this particular species. Additionally, the lower euthanasia temperature (−0.6 °C) seems to lead to higher fish freshness than the normal temperature (0.6 °C).
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Affiliation(s)
- Patrícia G. Cardoso
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- Correspondence:
| | - Odete Gonçalves
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Thais Cavalheri
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Vânia E. Amorim
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Weiwei Cao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Diogo A. M. Alexandrino
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- Department of Environmental Health, School of Health, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
| | - Zhongjun Jia
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Maria F. Carvalho
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- ICBAS—School of Medicine and Biomedical Sciences, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Paulo Vaz-Pires
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
- ICBAS—School of Medicine and Biomedical Sciences, University of Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Rodrigo O. A. Ozório
- CIIMAR—Interdisciplinar Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
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Benítez S, Figueroa Á, Lagos NA, Silva AX, Duarte C, Vargas CA, Lardies MA, Cárdenas L. Differential gene expression analysis in the scallop Argopecten purpuratus exposed to altered pH and temperature conditions in an upwelling-influenced farming area. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2023; 45:101046. [PMID: 36495831 DOI: 10.1016/j.cbd.2022.101046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022]
Abstract
Increased carbon dioxide in the atmosphere and its absorption across the ocean surface will alter natural variations in pH and temperature levels, occurring in coastal upwelling ecosystems. The scallop Argopecten purpuratus, one of the most economically important species farmed in northern Chile, has been shown to be vulnerable to these environmental drivers. However, the regulatory responses at the gene-level of scallops to these climate stressors remain almost unknown. Consequently, we used an orthogonal experimental design and RNAseq approach to analyze the acute effects of variability in pH and temperature on gene expression in the muscle tissue of A. purpuratus. In respect to control conditions (pH ~ 8.0/ 14 °C), the influence of low pH (~ 7.7) and temperature (14 °C) induced the activation of several genes associated with apoptotic signaling pathways and protein localization to plasma membrane. Elevated temperature (18 °C) and pH (~8.0) conditions increased the expression of transcripts associated with the activation of muscle contraction, regulation, and sarcomere organization effects on muscle tissue. In scallops exposed to low pH and elevated temperature, the genes expressed were differentially associated with the oxidation-reduction process, signal translation, and positive regulation of GTPase activity. These results indicated that the differentially expressed genes under the experimental conditions tested are mainly related to the mitigation of cellular damage and homeostasis control. Our results add knowledge about the function of the adductor muscle in response to stressors in scallops. Furthermore, these results could help in the identification of molecular biomarkers of stress necessary to be integrated into the aquaculture programs for the mitigation of climate change.
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Affiliation(s)
- Samanta Benítez
- Programa de Doctorado en Biología Marina, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile
| | - Álvaro Figueroa
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Nelson A Lagos
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile
| | - Andrea X Silva
- AUSTRAL-omics, Vicerrectoría de Investigación, Desarrollo y Creación Artística, Universidad Austral de Chile, Chile
| | - Cristian Duarte
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Cristian A Vargas
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile; Laboratorio de Ecosistemas Costeros y Cambio Ambiental Global (ECCALab), Facultad de Ciencias Ambientales & Centro EULA Chile, Universidad de Concepción, Concepción, Chile
| | - Marco A Lardies
- Instituto Milenio de Socio-Ecología Costera (SECOS), Santiago, Chile; Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibañez, Santiago, Chile
| | - Leyla Cárdenas
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile.
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Investigating an Unknown Biodiversity: Evidence of Distinct Lineages of the Endemic Chola Guitarfish Pseudobatos percellens Walbaum, 1792 in the Western Atlantic Ocean. DIVERSITY 2023. [DOI: 10.3390/d15030344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
Anthropogenic actions have affected marine species for a long time, through overexploitation of natural stocks and habitat degradation, influencing the life strategies of several taxa, especially rays and sharks, which have suffered significant population declines in recent years. Therefore, conservation actions and stock management have become paramount. In this regard, chola guitarfish, Pseudobatos percellens, distributed throughout the Brazilian coast, is often commercially fished by local artisanal fleets or as by-catch in shrimp trawl fisheries. Therefore, this study aimed to understand the genetic diversity of P. percellens throughout the Brazilian coast, using single nucleotide polymorphisms (SNPs). Genetic analyses employing 3329 SNPs revealed a hidden biodiversity within P. percellens, with at least one lineage occurring in the Northern and Northeastern regions and another distributed in the Southeastern/Southern Brazilian coast, with high genetic differentiation between them. However, the Discriminant Analysis of Principal Components (DAPC) indicated the presence of in fact three lineages distributed in these regions that must still be better investigated. Therefore, to ensure adequate conservation of chola guitarfish biodiversity, populations must be managed separately along the Brazilian coast. Furthermore, the need for a taxonomic review for this group is noted.
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31
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Molina JM, Kunzmann A, Reis JP, Guerreiro PM. Metabolic Responses and Resilience to Environmental Challenges in the Sedentary Batrachoid Halobatrachus didactylus (Bloch & Schneider, 1801). Animals (Basel) 2023; 13:ani13040632. [PMID: 36830420 PMCID: PMC9951689 DOI: 10.3390/ani13040632] [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: 12/26/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
In the context of climate change, warming of the seas and expansion of hypoxic zones are challenges that most species of fish are, or will be subjected to. Understanding how different species cope with these changes in their environment at the individual level can shed light on how populations and ecosystems will be affected. We provide first-time estimates on the metabolic rates, thermal, and oxygen-related limits for Halobatrachus didactylus, a coastal sedentary fish that lives in intertidal environments of the Northeast Atlantic. Using respirometry in different experimental designs, we found that this species is highly resistant to acute thermal stress (CTmax: 34.82 ± 0.66 °C) and acute hypoxia (Pcrit: 0.59-1.97 mg O2 L-1). We found size-specific differences in this stress response, with smaller individuals being more sensitive. We also quantified its aerobic scope and daily activity patterns, finding this fish to be extremely sedentary, with one of the lowest standard metabolic rates found in temperate fish (SMR: 14.96 mg O2 kg-1h-1). H. didactylus activity increases at night, when its metabolic rate increases drastically (RMR: 36.01 mg O2 kg-1h-1). The maximum metabolic rate of H. didactylus was estimated to be 67.31 mg O2 kg-1h-1, producing an aerobic scope of 52.35 mg O2 kg-1h-1 (77.8% increase). The metrics obtained in this study prove that H. didactylus is remarkably resilient to acute environmental variations in temperature and oxygen content, which might enable it to adapt to the extreme abiotic conditions forecasted for the world's oceans in the near future.
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Affiliation(s)
- Juan Manuel Molina
- Instituto Argentino de Oceanografía (CONICET), Bahía Blanca B8000, Argentina
- Leibniz-Zentrum für Marine Tropenforschung (ZMT), 28359 Bremen, Germany
- Centro de Ciências do Mar (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal
- Correspondence:
| | - Andreas Kunzmann
- Leibniz-Zentrum für Marine Tropenforschung (ZMT), 28359 Bremen, Germany
| | - João Pena Reis
- Centro de Ciências do Mar (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal
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Li L, Liu Z, Quan J, Sun J, Lu J, Zhao G. Dietary nano-selenium alleviates heat stress-induced intestinal damage through affecting intestinal antioxidant capacity and microbiota in rainbow trout (Oncorhynchus mykiss). FISH & SHELLFISH IMMUNOLOGY 2023; 133:108537. [PMID: 36639066 DOI: 10.1016/j.fsi.2023.108537] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Heat stress-induced intestinal damage is a key event in fish pathology. Nano-selenium (nano-Se) shows remarkably high biological activity and low toxicity, making it an ideal and ecological Se formulation; however, to date, the protective effects of nano-Se against heat stress-induced intestinal injury and pertinent molecular mechanisms remain unknown. Herein, rainbow trout (Oncorhynchus mykiss) were fed either a basal diet or basal diet + 5 mg/kg nano-Se. Samples were collected before (18 °C for 9 days; CG18 and Se18 groups) and after (24 °C for 8 h; CG24 and Se24 groups) heat stress treatment. On heat stress exposure, intestinal villus height, muscularis thickness, and goblet cell number decreased, and expression of tight junction proteins (ZO-1, occludin, and claudin-8d) was downregulated; dietary supplementation with nano-Se alleviated these effects. Furthermore, in the presence of nano-Se, catalase activity was elevated, and expression of diverse heat shock proteins (Hsp70b, Hsp90α, and Hsp30), selenoproteins (Gpx1a, Gpx1b1, and Trx), and anti-inflammatory cytokine (TGF-β) was upregulated. In contrast, nano-Se supplementation significantly alleviated the increase of the expression of pro-inflammatory cytokines (IL-1β and TNF-α) and the malondialdehyde content. We also observed that heat stress markedly increased the relative abundance of Actinobacteria, Firmicutes, Methylobacterium, Akkermansia, and Deinococcus and decreased that of Proteobacteria; nano-Se supplementation restored these changes, making their distribution similar to that in the control group. Overall, our findings suggest that nano-Se plays a protective role against heat stress-induced intestinal damage in rainbow trout by promoting the recovery of antioxidant enzyme activity, enhancing protein repair, alleviating inflammatory responses, and restoring intestinal microbiota composition.
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Affiliation(s)
- Lanlan Li
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Zhe Liu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China.
| | - Jinqiang Quan
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Jun Sun
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Junhao Lu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Guiyan Zhao
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
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O’Sullivan AM, Corey EM, Collet EN, Helminen J, Curry RA, MacIntyre C, Linnansaari T. Timing and frequency of high temperature events bend the onset of behavioural thermoregulation in Atlantic salmon ( Salmo salar). CONSERVATION PHYSIOLOGY 2023; 11:coac079. [PMID: 36685329 PMCID: PMC9845963 DOI: 10.1093/conphys/coac079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/25/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
The role of temperature on biological activities and the correspondent exponential relationship with temperature has been known for over a century. However, lacking to date is knowledge relating to (a) the recovery of ectotherms subjected to extreme temperatures in the wild, and (b) the effects repeated extreme temperatures have on the temperatures that induce behavioural thermoregulation (aggregations). We examined these questions by testing the hypothesis that thermal thresholds which initiate aggregations in juvenile Atlantic salmon (AS) (Salmo salar) are not static, but are temporally dynamic across a summer and follow a hysteresis loop. To test our hypothesis, we deployed custom-made underwater camera (UWC) systems in known AS thermal refuges to observe the timing of aggregation events in a natural system and used these data to develop and test models that predict the temperatures that induce thermal aggregations. Consistent with our hypothesis our UWC observations revealed a range of aggregation onset temperatures (AOT) ranging from 24.2°C to 27.1°C, thus confirming our hypothesis that AOTs are dynamic across summer. Our models suggest it take ~ 11 days of non-thermally taxing temperatures for the AOT to rebound in the study river. Conversely, we found that as the frequency of events increased, the AOT declined, from 27.1°C to 24.2°C. Integrating both model components led to more robust model performance. Further, when these models were tested against an independent data set from the same river, the results remained robust. Our findings illustrate the complexity underlying behavioural thermoregulation in AS-a complexity that most likely extends to other salmonids. The frequency of extreme heat events is predicted to increase, and this has the capacity to decrease AOT thresholds in AS, ultimately reducing their resilience to extreme temperature events.
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Affiliation(s)
- Antóin M O’Sullivan
- Corresponding author: FOREM, University of New Brunswick, Fredericton, Fredericton, New Brunswick, NB E3B 5A3, Canada
| | - Emily M Corey
- Canadian Rivers Institute, University of New Brunswick, New Brunswick, NB E3B 5A3, Canada
- Biology, University of New Brunswick, Fredericton, Canada
| | - Elise N Collet
- FOREM, University of New Brunswick, Fredericton, Fredericton, New Brunswick, NB E3B 5A3, Canada
- Canadian Rivers Institute, University of New Brunswick, New Brunswick, NB E3B 5A3, Canada
| | - Jani Helminen
- Natural Resources InstituteFinland, Helsinki, Uusimaa, 00790, Finland
| | - R Allen Curry
- FOREM, University of New Brunswick, Fredericton, Fredericton, New Brunswick, NB E3B 5A3, Canada
- Canadian Rivers Institute, University of New Brunswick, New Brunswick, NB E3B 5A3, Canada
- Biology, University of New Brunswick, Fredericton, Canada
| | - Chris MacIntyre
- FOREM, University of New Brunswick, Fredericton, Fredericton, New Brunswick, NB E3B 5A3, Canada
| | - Tommi Linnansaari
- FOREM, University of New Brunswick, Fredericton, Fredericton, New Brunswick, NB E3B 5A3, Canada
- Canadian Rivers Institute, University of New Brunswick, New Brunswick, NB E3B 5A3, Canada
- Biology, University of New Brunswick, Fredericton, Canada
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Marić A, Špelić I, Radočaj T, Vidović Z, Kanjuh T, Vilizzi L, Piria M, Nikolić V, Škraba Jurlina D, Mrdak D, Simonović P. Changing climate may mitigate the invasiveness risk of non-native salmonids in the Danube and Adriatic basins of the Balkan Peninsula (south-eastern Europe). NEOBIOTA 2022. [DOI: 10.3897/neobiota.76.82964] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Salmonids are an extensively hatchery-reared group of fishes that have been introduced worldwide mainly for their high commercial and recreational value. The Balkan Peninsula (south-eastern Europe) is characterised by an outstanding salmonid diversity that has become threatened by the introduction of non-native salmonids whose potential risk of invasiveness in the region remains unknown and especially so under predicted climate change conditions. In this study, 13 extant and four horizon non-native salmonid species were screened for their risk of invasiveness in the Danube and Adriatic basins of four Balkan countries. Overall, six (35%) of the screened species were ranked as carrying a high risk of invasiveness under current climate conditions, whereas under predicted conditions of global warming, this number decreased to three (17%). Under current climate conditions, the very high risk (‘top invasive’) species were rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta (sensu stricto), whereas under predicted climate change, this was true only of O. mykiss. A high risk was also attributed to horizon vendace Coregonus albula and lake charr Salvelinus namaycush, and to extant Atlantic salmon Salmo salar and brook trout Salvelinus fontinalis, whose risk of invasiveness, except for S. fontinalis, decreased to medium. For the other eleven medium-risk species, the risk score decreased under predicted climate change, but still remained medium. The outcomes of this study reveal that global warming will influence salmonids and that only species with wider temperature tolerance, such as O. mykiss will likely prevail. It is anticipated that the present results may contribute to the implementation of appropriate management plans to prevent the introduction and translocation of non-native salmonids across the Balkan Peninsula. Additionally, adequate measures should be developed for aquaculture facilities to prevent escapees of non-native salmonids with a high risk of invasiveness, especially into recipient areas of high conservation value.
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35
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Earhart ML, Blanchard TS, Harman AA, Schulte PM. Hypoxia and High Temperature as Interacting Stressors: Will Plasticity Promote Resilience of Fishes in a Changing World? THE BIOLOGICAL BULLETIN 2022; 243:149-170. [PMID: 36548973 DOI: 10.1086/722115] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
AbstractDetermining the resilience of a species or population to climate change stressors is an important but difficult task because resilience can be affected both by genetically based variation and by various types of phenotypic plasticity. In addition, most of what is known about organismal responses is for single stressors in isolation, but environmental change involves multiple environmental factors acting in combination. Here, our goal is to summarize what is known about phenotypic plasticity in fishes in response to high temperature and low oxygen (hypoxia) in combination across multiple timescales, to ask how much resilience plasticity may provide in the face of climate change. There are relatively few studies investigating plasticity in response to these environmental stressors in combination; but the available data suggest that although fish have some capacity to adjust their phenotype and compensate for the negative effects of acute exposure to high temperature and hypoxia through acclimation or developmental plasticity, compensation is generally only partial. There is very little known about intergenerational and transgenerational effects, although studies on each stressor in isolation suggest that both positive and negative impacts may occur. Overall, the capacity for phenotypic plasticity in response to these two stressors is highly variable among species and extremely dependent on the specific context of the experiment, including the extent and timing of stressor exposure. This variability in the nature and extent of plasticity suggests that existing phenotypic plasticity is unlikely to adequately buffer fishes against the combined stressors of high temperature and hypoxia as our climate warms.
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Vasdravanidis C, Alvanou MV, Lattos A, Papadopoulos DK, Chatzigeorgiou I, Ravani M, Liantas G, Georgoulis I, Feidantsis K, Ntinas GK, Giantsis IA. Aquaponics as a Promising Strategy to Mitigate Impacts of Climate Change on Rainbow Trout Culture. Animals (Basel) 2022; 12:ani12192523. [PMID: 36230264 PMCID: PMC9559468 DOI: 10.3390/ani12192523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Climate change and overexploitation of natural resources drive the need for innovative food production within a sustainability corridor. Aquaponics, combining the technology of recirculation aquaculture systems (RAS) and hydroponics in a closed-loop network, could contribute to addressing these problems. Aquaponic systems have lower freshwater demands than agriculture, greater land use efficiency, and decreased environmental impact combined with higher fish productivity. Rainbow trout is one of the major freshwater fish cultured worldwide, which, however, has not yet been commercially developed in aquaponics. Nevertheless, research conducted so far indicates that the trout species represents a good candidate for aquaponics. Abstract The impact of climate change on both terrestrial and aquatic ecosystems tends to become more progressively pronounced and devastating over the years. The sector of aquaculture is severely affected by natural abiotic factors, on account of climate change, that lead to various undesirable phenomena, including aquatic species mortalities and decreased productivity owing to oxidative and thermal stress of the reared organisms. Novel innovative technologies, such as aquaponics that are based on the co-cultivation of freshwater fish with plants in a sustainable manner under the context of controlled abiotic factors, represent a promising tool for mitigating the effect of climate change on reared fish. The rainbow trout (Oncorhynchus mykiss) constitutes one of the major freshwater-reared fish species, contributing to the national economies of numerous countries, and more specifically, to regional development, supporting mountainous areas of low productivity. However, it is highly vulnerable to climate change effects, mainly due to the concrete raceways, in which it is reared, that are constructed on the flow-through of rivers and are, therefore, dependent on water’s physical properties. The current review study evaluates the suitability, progress, and challenges of developing innovative and sustainable aquaponic systems to rear rainbow trout in combination with the cultivation of plants. Although not commercially developed to a great extent yet, research has shown that the rainbow trout is a valuable experimental model for aquaponics that may be also commercially exploited in the future. In particular, abiotic factors required in rainbow trout farming along, with the high protein proportion required in the ratios due to the strict carnivorous feeding behavior, result in high nitrate production that can be utilized by plants as a source of nitrogen in an aquaponic system. Intensive farming of rainbow trout in aquaponic systems can be controlled using digital monitoring of the system parameters, mitigating the obstacles originating from extreme temperature fluctuations.
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Affiliation(s)
- Christos Vasdravanidis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
| | - Maria V. Alvanou
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
| | - Athanasios Lattos
- Oecon Group, Business & Development Consultants, Frixou 9, 54627 Thessaloniki, Greece
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Dimitrios K. Papadopoulos
- Oecon Group, Business & Development Consultants, Frixou 9, 54627 Thessaloniki, Greece
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioanna Chatzigeorgiou
- Oecon Group, Business & Development Consultants, Frixou 9, 54627 Thessaloniki, Greece
- Institute of Plant Breeding and Genetic Resources, ELGO-DIMITRA, 57001 Thessaloniki, Greece
| | - Maria Ravani
- Institute of Plant Breeding and Genetic Resources, ELGO-DIMITRA, 57001 Thessaloniki, Greece
| | - Georgios Liantas
- Institute of Plant Breeding and Genetic Resources, ELGO-DIMITRA, 57001 Thessaloniki, Greece
| | - Ioannis Georgoulis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Konstantinos Feidantsis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios K. Ntinas
- Institute of Plant Breeding and Genetic Resources, ELGO-DIMITRA, 57001 Thessaloniki, Greece
| | - Ioannis A. Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece
- Correspondence:
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Danylchuk AJ, Griffin LP, Ahrens R, Allen MS, Boucek RE, Brownscombe JW, Casselberry GA, Danylchuk SC, Filous A, Goldberg TL, Perez AU, Rehage JS, Santos RO, Shenker J, Wilson JK, Adams AJ, Cooke SJ. Cascading effects of climate change on recreational marine flats fishes and fisheries. ENVIRONMENTAL BIOLOGY OF FISHES 2022; 106:381-416. [PMID: 36118617 PMCID: PMC9465673 DOI: 10.1007/s10641-022-01333-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Tropical and subtropical coastal flats are shallow regions of the marine environment at the intersection of land and sea. These regions provide myriad ecological goods and services, including recreational fisheries focused on flats-inhabiting fishes such as bonefish, tarpon, and permit. The cascading effects of climate change have the potential to negatively impact coastal flats around the globe and to reduce their ecological and economic value. In this paper, we consider how the combined effects of climate change, including extremes in temperature and precipitation regimes, sea level rise, and changes in nutrient dynamics, are causing rapid and potentially permanent changes to the structure and function of tropical and subtropical flats ecosystems. We then apply the available science on recreationally targeted fishes to reveal how these changes can cascade through layers of biological organization-from individuals, to populations, to communities-and ultimately impact the coastal systems that depend on them. We identify critical gaps in knowledge related to the extent and severity of these effects, and how such gaps influence the effectiveness of conservation, management, policy, and grassroots stewardship efforts.
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Affiliation(s)
- Andy J. Danylchuk
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Lucas P. Griffin
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Robert Ahrens
- Fisheries Research and Monitoring Division, NOAA Pacific Islands Fisheries Science Center, 1845 Wasp Blvd., Bldg 176, Honolulu, HI 96818 USA
| | - Micheal S. Allen
- Nature Coast Biological Station, School of Forest, Fisheries and Geomatics Sciences, The University of Florida, 552 First Street, Cedar Key, FL 32625 USA
| | - Ross E. Boucek
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
- Earth and Environment Department, Florida International University, Miami, FL 33199 USA
| | - Jacob W. Brownscombe
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6 Canada
| | - Grace A. Casselberry
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Sascha Clark Danylchuk
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
- Keep Fish Wet, 11 Kingman Road, Amherst, MA 01002 USA
| | - Alex Filous
- Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA
| | - Tony L. Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 1656 Linden Drive, Madison, WI 53706 USA
| | - Addiel U. Perez
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
| | - Jennifer S. Rehage
- Earth and Environment Department, Florida International University, Miami, FL 33199 USA
| | - Rolando O. Santos
- Department of Biological Sciences, Florida International University, Miami, FL 33181 USA
| | - Jonathan Shenker
- Department of Ocean Engineering and Marine Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32904 USA
| | - JoEllen K. Wilson
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
| | - Aaron J. Adams
- Bonefish & Tarpon Trust, 2937 SW 27th Ave, Suite 203, Miami, FL 33133 USA
- Florida Atlantic University Harbor Branch Oceanographic Institute, 5600 US 1 North, Fort Pierce, FL 34946 USA
| | - Steven J. Cooke
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6 Canada
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Absence of mitochondrial responses in muscles of zebrafish exposed to several heat waves. Comp Biochem Physiol A Mol Integr Physiol 2022; 274:111299. [PMID: 36031060 DOI: 10.1016/j.cbpa.2022.111299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/31/2022] [Accepted: 08/18/2022] [Indexed: 11/20/2022]
Abstract
Heat waves are extreme thermal events whose frequency and intensity will increase with global warming. As metabolic responses to temperature are time-dependent, we explored the effects of an exposure to several heat waves on the mitochondrial metabolism of zebrafish Danio rerio. For this purpose, zebrafish were acclimated at 26 °C or 31 °C for 4 weeks and some fish acclimated at 26 °C underwent 2 types of heat waves: 2 periods of 5 days at 31 °C or 10 days at 31 °C. After this acclimation period, mitochondrial respiration of red muscle fibres was measured at 26 °C and 31 °C for each fish, with the phosphorylation (OXPHOS) and basal (LEAK) respirations obtained with activation of complex I, complex II or complexes I and II. The respiratory control ratio (RCR) and the mitochondrial aerobic scope (CAS) were also calculated at both temperatures after the activation of complexes I and II. Under our conditions, heat waves did not result in variations in any mitochondrial parameters, suggesting a high tolerance of zebrafish to environmental temperature fluctuations. However, an acute in vitro warming led to an increase in the LEAK respiration together with a higher temperature effect on complex II than complex I, inducing a decrease of mitochondrial efficiency to produce energy at high temperatures. Increased interindividual variability for some parameters at 26 °C or 31 °C also suggests that each individual has its own ability to cope with temperature fluctuations.
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Chmura HE, Williams CT. A cross-taxonomic perspective on the integration of temperature cues in vertebrate seasonal neuroendocrine pathways. Horm Behav 2022; 144:105215. [PMID: 35687987 DOI: 10.1016/j.yhbeh.2022.105215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 05/11/2022] [Accepted: 06/02/2022] [Indexed: 02/08/2023]
Abstract
The regulation of seasonality has been an area of interest for decades, yet global climate change has created extra urgency in the quest to understand how sensory circuits and neuroendocrine control systems interact to generate flexibility in biological timekeeping. The capacity of temperature to alter endogenous or photoperiod-regulated neuroendocrine mechanisms driving seasonality, either as a direct cue or through temperature-dependent effects on energy and metabolism, is at the heart of this phenological flexibility. However, until relatively recently, little research had been done on the integration of temperature information in canonical seasonal neuroendocrine pathways, particularly in vertebrates. We review recent advances from research in vertebrates that deepens our understanding of how temperature cues are perceived and integrated into seasonal hypothalamic thyroid hormone (TH) signaling, which is a critical regulator of downstream seasonal phenotypic changes such as those regulated by the BPG (brain-pituitary-gonadal) axis. Temperature perception occurs through cutaneous transient receptor potential (TRP) neurons, though sensitivity of these neurons varies markedly across taxa. Although photoperiod is the dominant cue used to trigger seasonal physiology or entrain circannual clocks, across birds, mammals, fish, reptiles and amphibians, seasonality appears to be temperature sensitive and in at least some cases this appears to be related to phylogenetically conserved TH signaling in the hypothalamus. Nevertheless, the exact mechanisms through which temperature modulates seasonal neuroendocrine pathways remains poorly understood.
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Affiliation(s)
- Helen E Chmura
- Institute of Arctic Biology, University of Alaska Fairbanks, 2140 Koyukuk Drive, Fairbanks, AK 99775, USA; Rocky Mountain Research Station, United States Forest Service, 800 E. Beckwith Ave., Missoula, MT 59801, USA.
| | - Cory T Williams
- Department of Biology, Colorado State University, 1878 Campus Delivery Fort Collins, CO 80523, USA
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40
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Turriago JL, Tejedo M, Hoyos JM, Bernal MH. The effect of thermal microenvironment in upper thermal tolerance plasticity in tropical tadpoles. Implications for vulnerability to climate warming. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2022; 337:746-759. [PMID: 35674344 DOI: 10.1002/jez.2632] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 04/09/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Current climate change is generating accelerated increase in extreme heat events and organismal plastic adjustments in upper thermal tolerances, (critical thermal maximum -CTmax ) are recognized as the quicker mitigating mechanisms. However, current research casts doubt on the actual mitigating role of thermal acclimation to face heat impacts, due to its low magnitude and weak environmental signal. Here, we examined these drawbacks by first estimating maximum extent of thermal acclimation by examining known sources of variation affecting CTmax expression, such as daily thermal fluctuation and heating rates. Second, we examined whether the magnitude and pattern of CTmax plasticity is dependent of the thermal environment by comparing the acclimation responses of six species of tropical amphibian tadpoles inhabiting thermally contrasting open and shade habitats and, finally, estimating their warming tolerances (WT = CTmax - maximum temperatures) as estimator of heating risk. We found that plastic CTmax responses are improved in tadpoles exposed to fluctuating daily regimens. Slow heating rates implying longer duration assays determined a contrasting pattern in CTmax plastic expression, depending on species environment. Shade habitat species suffer a decline in CTmax whereas open habitat tadpoles greatly increase it, suggesting an adaptive differential ability of hot exposed species to quick hardening adjustments. Open habitat tadpoles although overall acclimate more than shade habitat species, cannot capitalize this beneficial increase in CTmax, because the maximum ambient temperatures are very close to their critical limits, and this increase may not be large enough to reduce acute heat stress under the ongoing global warming.
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Affiliation(s)
- Jorge L Turriago
- Department of Biology, Grupo de Herpetología, Eco-Fisiología & Etología, Universidad del Tolima, Tolima, Colombia
- Programa de Doctorado en Ciencias Biológicas, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Miguel Tejedo
- Department of Evolutionary Ecology, Estación Biológica de Doñana, CSIC, Sevilla, Spain
| | - Julio M Hoyos
- Department of Biology, Grupo UNESIS, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Manuel H Bernal
- Department of Biology, Grupo de Herpetología, Eco-Fisiología & Etología, Universidad del Tolima, Tolima, Colombia
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Sabino MA, Bodin N, Govinden R, Arrisol R, Churlaud C, Pethybridge H, Bustamante P. The role of tropical small-scale fisheries in trace element delivery for a Small Island Developing State community, the Seychelles. MARINE POLLUTION BULLETIN 2022; 181:113870. [PMID: 35835052 DOI: 10.1016/j.marpolbul.2022.113870] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
The concentrations of 13 trace elements were determined in 1032 muscles of 54 small-scale fisheries species collected from the Seychelles waters between 2013 and 2019. Overall, profiles were dominated by zinc (Zn) > arsenic (As) > iron (Fe) > copper (Cu) > selenium (Se), with the spiny lobsters, spanner crab and octopus exhibiting the highest levels of As, Cu and Zn while fish had higher Fe concentrations. Both taxonomy-dependent processes and ecological factors explained the interspecific differences of trace element profiles observed. A benefit-risk assessment revealed that crustaceans and cephalopods were good sources of Cu and Zn. One portion of any fish could provide 30-100 % of daily Se needs, and one portion of demersal and pelagic teleost fish could bring 5-20 % of Cu, Fe and Zn needs, especially for young adult and adult women. Finally, our analysis showed that there was very low health risks associated with small-scale fisheries consumption for the Seychelles population.
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Affiliation(s)
- Magali A Sabino
- Seychelles Fishing Authority (SFA), Fishing Port, Victoria, Mahé, Seychelles; Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | - Nathalie Bodin
- Seychelles Fishing Authority (SFA), Fishing Port, Victoria, Mahé, Seychelles; Institute for Research and Development (IRD), Fishing Port, Victoria, Mahé, Seychelles; Sustainable Ocean Seychelles (SOS), BeauBelle, Mahé, Seychelles.
| | - Rodney Govinden
- Seychelles Fishing Authority (SFA), Fishing Port, Victoria, Mahé, Seychelles
| | - Rona Arrisol
- Seychelles Fishing Authority (SFA), Fishing Port, Victoria, Mahé, Seychelles
| | - Carine Churlaud
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | | | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
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42
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Yang S, Xu W, Tan C, Li M, Li D, Zhang C, Feng L, Chen Q, Jiang J, Li Y, Du Z, Luo W, Li C, Gong Q, Huang X, Du X, Du J, Liu G, Wu J. Heat Stress Weakens the Skin Barrier Function in Sturgeon by Decreasing Mucus Secretion and Disrupting the Mucosal Microbiota. Front Microbiol 2022; 13:860079. [PMID: 35558118 PMCID: PMC9087187 DOI: 10.3389/fmicb.2022.860079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Heat stress induced by global warming has damaged the well-being of aquatic animals. The skin tissue plays a crucial role as a defense barrier to protect organism, however, little is known about the effect of heat stress on fish skin, particularly in cold-water fish species. Here, we investigated the effects of mild heat stress (24°C, MS) and high heat stress (28°C, HS) on Siberian sturgeon skin using RNA-seq, histological observation, and microbial diversity analysis. In RNA-seq, 8,819 differentially expressed genes (DEGs) in MS vs. C group and 12,814 DEGs in HS vs. C group were acquired, of which the MS vs. C and HS vs. C groups shared 3,903 DEGs, but only 1,652 DEGs were successfully annotated. The shared DEGs were significantly enriched in pathways associating with mucins synthesis. Histological observation showed that the heat stresses significantly reduced the number of skin mucous cells and induced the damages of epidermis. The microbial diversity analysis elicited that heat stress markedly disrupted the diversity and abundance of skin microbiota by increasing of potential pathogens (Vibrionimonas, Mesorhizobium, and Phyllobacterium) and decreasing of probiotics (Bradyrhizobium and Methylovirgula). In conclusion, this study reveals that heat stress causes adverse effects on sturgeon skin, reflecting in decreasing the mucus secretion and disordering the mucosal microbiota, which may contribute to develop the preventive strategy for heat stress caused by global warming.
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Affiliation(s)
- Shiyong Yang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wenqiang Xu
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Chaolun Tan
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Minghao Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Datian Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Chaoyang Zhang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Langkun Feng
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Qianyu Chen
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jun Jiang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yunkun Li
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Zongjun Du
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wei Luo
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Caiyi Li
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Quan Gong
- Fisheries Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Xiaoli Huang
- Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xiaogang Du
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Jun Du
- Fisheries Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Guangxun Liu
- Fisheries Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Jiayun Wu
- College of Life Science, Sichuan Agricultural University, Ya'an, China
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43
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Dawson NJ, Millet C, Selman C, Metcalfe NB. Inter-individual variation in mitochondrial phosphorylation efficiency predicts growth rates in ectotherms at high temperatures. FASEB J 2022; 36:e22333. [PMID: 35486025 DOI: 10.1096/fj.202101806rr] [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: 11/30/2021] [Revised: 04/11/2022] [Accepted: 04/18/2022] [Indexed: 11/11/2022]
Abstract
There is increasing evidence that aquatic ectotherms are especially vulnerable to global warming since their metabolic demands increase with ambient temperature while water-oxygen content decreases. The possible role of shrinking aerobic scope in limiting performance has been much discussed; however, less attention has been given to whether tissue-level changes in the efficiency of oxygen usage occur at elevated temperatures. Here, we show that this varies widely among individuals, with consequences for performance. We examined the inter-individual variation in growth rate and mitochondrial function from white muscle and liver of brown trout (Salmo trutta) acclimated to either high (19.5°C) or near-optimal temperature (12°C). Liver (but not muscle) mitochondria showed a positive relationship between growth rate and maximal oxidative phosphorylation at both temperatures, and a negative relationship between growth rate and ROS release. There was a positive correlation in both tissues between individual mitochondrial phosphorylation efficiency and growth rate, but only at 19.5°C. In this representative of aquatic ectotherms, an individual's liver mitochondrial efficiency thus seems to dictate its capacity to grow at elevated temperatures. This suggests that individual heterogeneity in cellular function may cause variation in the thermal limits of aquatic ectotherms and could adversely affect wild populations in warming environments.
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Affiliation(s)
- Neal J Dawson
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Caroline Millet
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Colin Selman
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Neil B Metcalfe
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
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44
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Gomez Isaza DF, Cramp RL, Franklin CE. Fire and rain: A systematic review of the impacts of wildfire and associated runoff on aquatic fauna. GLOBAL CHANGE BIOLOGY 2022; 28:2578-2595. [PMID: 35038772 DOI: 10.1111/gcb.16088] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Climate and land-use changes are expected to increase the future occurrence of wildfires, with potentially devastating consequences for freshwater species and ecosystems. Wildfires that burn in close proximity to freshwater systems can significantly alter the physicochemical properties of water. Following wildfires and heavy rain, freshwater species must contend with complex combinations of wildfire ash components (nutrients, polycyclic aromatic hydrocarbons, and metals), altered light and thermal regimes, and periods of low oxygen that together can lead to mass mortality events. However, the responses of aquatic fauna to wildfire disturbances are poorly understood. Here we provide a systematic review of available evidence on how aquatic animals respond to and recover from wildfire disturbance. Two databases (Web of Science and Scopus) were used to identify key literature. A total of 83 studies from across 11 countries were identified to have assessed the risk of wildfires on aquatic animals. We provide a summary of the main ecosystem-level changes associated with wildfires and the main responses of aquatic fauna to such disturbances. We pay special focus to physiological tools and biomarkers used to assess how wildfires impact aquatic animals. We conclude by providing an overview of how physiological biomarkers can further our understanding of wildfire-related impacts on aquatic fauna, and how different physiological tools can be incorporated into management and conservation plans and serve as early warning signs of wildfire disturbances.
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Affiliation(s)
| | - Rebecca L Cramp
- The University of Queensland, St Lucia, Brisbane, Queensland, Australia
| | - Craig E Franklin
- The University of Queensland, St Lucia, Brisbane, Queensland, Australia
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45
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Loughland I, Lau GY, Jolly J, Seebacher F. Rates of warming impact oxidative stress in zebrafish (Danio rerio). J Exp Biol 2022; 225:274436. [PMID: 35179603 DOI: 10.1242/jeb.243740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/10/2022] [Indexed: 11/20/2022]
Abstract
Potentially negative effects of thermal variation on physiological functions may be modulated by compensatory responses, but their efficacy depends on the timescale of phenotypic adjustment relative to the rate of temperature change. Increasing temperatures in particular can affect mitochondrial bioenergetics and rates of reactive oxygen species (ROS) production. Our aim was to test whether different rates of temperature increase impact mitochondrial bioenergetics and modulate oxidative stress. We exposed zebrafish (Danio rerio) to warming from 20 to 28°C over 3, 6, 24, or 48 h, and compared these to a control group that was kept at constant 20°C. Fish exposed to the fastest (3 h) and slowest (48 h) rates of warming had significantly higher rates of H2O2 production relative to the control treatment, and the proportion of O2 converted to H2O2 (H2O2/O2 ratio) was significantly greater in these groups. However, ROS production was not paralleled by differences in mitochondrial substrate oxidation rates, leak respiration rates, or coupling (respiratory control ratios). Increased rates of ROS production did not lead to damage of proteins or membranes, which may be explained by a moderate increase in catalase activity at the fastest, but not the slowest rate of warming. The increase in ROS production at the slowest rate of heating indicates that even seemingly benign environments may be stressful. Understanding how animals respond to different rates of temperature change is important, because the rate determines the time period for phenotypic adjustments and it also alters the environmental thermal signal that triggers compensatory pathways.
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Affiliation(s)
- Isabella Loughland
- School of Life and Environmental Sciences A08, University of Sydney, NSW 2006, Australia
| | - Gigi Y Lau
- Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, Blindernveien 31, Postbox 1066, Blindern, Oslo NO-0316, Norway
| | - Jordan Jolly
- School of Life and Environmental Sciences A08, University of Sydney, NSW 2006, Australia
| | - Frank Seebacher
- School of Life and Environmental Sciences A08, University of Sydney, NSW 2006, Australia
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46
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Probiotic Potentiality from Versatile Lactiplantibacillus plantarum Strains as Resource to Enhance Freshwater Fish Health. Microorganisms 2022; 10:microorganisms10020463. [PMID: 35208917 PMCID: PMC8877946 DOI: 10.3390/microorganisms10020463] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Dietary probiotic supplementation has the potential to enhance the health of fish and their disease resistance. In this study, some properties of ten Lactiplantibacillus plantarum strains have been evaluated, for their potential use as probiotics in freshwater fish diet. In particular, antimicrobial activity, antioxidant activity, the potentiality to survive the gastrointestinal transit and persist in the intestine, were evaluated in vitro. The experimental tests were carried out at 15 °C and 30 °C to determine the suitability of these lactic acid bacteria to be used as probiotics in the diet of fish grown at different temperatures. The results demonstrated that the evaluated Lp. plantarum strains, which often have significant differences among themselves, are characterized by important functional characteristics such as cell surface properties (auto-aggregation and hydrophobicity), ability to produce antioxidant substances, capacity to survive in the presence of 0.3% bile salts and acidic environment (2.5 pH), antagonistic activity against some fish opportunistic pathogens (A. salmonicida, Ps. aeruginosa, E. coli and C. freundii) and other unwanted bacteria present in fish products (S. aureus and L. innocua). The outcomes suggest that these Lp. plantarum strains may be candidates as probiotics in warm- and cold-water aquaculture.
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47
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Effects of Early Thermal Environment on Growth, Age at Maturity, and Sexual Size Dimorphism in Arctic Charr. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10020167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The effects of early thermal environment on growth, age at maturity, and sexual size dimorphism in Arctic charr (Salvelinus alpinus) are investigated. This study is a 654-day long rearing trial split into two sequential experimental phases termed EP1 and EP2 and lasting 315 and 339 days, respectively. EP1 started at the end of the yolk sac stage when the experimental fish were divided into three groups and reared at different target temperatures (7, 10 and 12 °C). During EP2, all groups were reared at the same temperature (7–8 °C) until harvest (~1300 g). Growth rates increased with temperature from 7 to 12 °C, and at the end of EP1 the 12C group had 49.0% and 19.2% higher mean weight than groups 7C and 10C, respectively. Elevated early rearing temperatures were, however, found to cause precocious sexual maturation and reduce the long-term growth performance. At the end of EP2, the 7C group had 3.6% and 14.1% higher mean weight than 10C and 12C, respectively. Elevated early rearing temperatures had a much stronger effect on the maturity incidence of females, and while male-biased sexual size dimorphism (SSD) was found in all groups, the magnitude of SSD was positively associated with temperature.
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48
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Adams OA, Zhang Y, Gilbert MH, Lawrence CS, Snow M, Farrell AP. An unusually high upper thermal acclimation potential for rainbow trout. CONSERVATION PHYSIOLOGY 2022; 10:coab101. [PMID: 35492409 PMCID: PMC9040278 DOI: 10.1093/conphys/coab101] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/01/2021] [Accepted: 12/11/2021] [Indexed: 06/02/2023]
Abstract
Thermal acclimation, a compensatory physiological response, is central to species survival especially during the current era of global warming. By providing the most comprehensive assessment to date for the cardiorespiratory phenotype of rainbow trout (Oncorhynchus mykiss) at six acclimation temperatures from 15°C to 25°C, we tested the hypothesis that, compared with other strains of rainbow trout, an Australian H-strain of rainbow trout has been selectively inbred to have an unusually high and broad thermal acclimation potential. Using a field setting at the breeding hatchery in Western Australia, thermal performance curves were generated for a warm-adapted H-strain by measuring growth, feed conversion efficiency, specific dynamic action, whole-animal oxygen uptake (ṀO2) during normoxia and hypoxia, the critical maximum temperature and the electrocardiographic response to acute warming. Appreciable growth and aerobic capacity were possible up to 23°C. However, growth fell off drastically at 25°C in concert with increases in the time required to digest a meal, its total oxygen cost and its peak ṀO2. The upper thermal tipping points for appetite and food conversion efficiency corresponded with a decrease in the ability to increase heart rate during warming and an increase in the cost to digest a meal. Also, comparison of upper thermal tipping points provides compelling evidence that limitations to increasing heart rate during acute warming occurred well below the critical thermal maximum (CTmax) and that the faltering ability of the heart to deliver oxygen at different acclimation temperatures is not reliably predicted by CTmax for the H-strain of rainbow trout. We, therefore, reasoned the remarkably high thermal acclimation potential revealed here for the Australian H-strain of rainbow trout reflected the existing genetic variation within the founder Californian population, which was then subjected to selective inbreeding in association with severe heat challenges. This is an encouraging discovery for those with conservation concerns for rainbow trout and other fish species. Indeed, those trying to predict the impact of global warming should more fully consider the possibility that the standing intra-specific genetic variation within a fish species could provide a high thermal acclimation potential, similar to that shown here for rainbow trout.
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Affiliation(s)
- Olivia A Adams
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Yangfan Zhang
- Corresponding author: Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada and Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States
| | - Matthew H Gilbert
- Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Craig S Lawrence
- Faculty of Science, School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, Australia
| | - Michael Snow
- Aquatic Life Industries, Perth, Western Australia, Australia
| | - Anthony P Farrell
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada
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49
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Arevalo E, Maire A, Tétard S, Prévost E, Lange F, Marchand F, Josset Q, Drouineau H. Does global change increase the risk of maladaptation of Atlantic salmon migration through joint modifications of river temperature and discharge? Proc Biol Sci 2021; 288:20211882. [PMID: 34875197 PMCID: PMC8651411 DOI: 10.1098/rspb.2021.1882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In freshwater ecosystems, water temperature and discharge are two intrinsically associated triggers of key events in the life cycle of aquatic organisms such as the migration of diadromous fishes. However, global changes have already profoundly altered the thermal and hydrological regimes of rivers, affecting the timing of fish migration as well as the environmental conditions under which it occurs. In this study, we focused on Atlantic salmon (Salmo salar), an iconic diadromous species whose individuals migrate between marine nursery areas and continental spawning grounds. An innovative multivariate method was developed to analyse long-term datasets of daily water temperature, discharge and both salmon juvenile downstream and adult upstream migrations in three French rivers (the Bresle, Oir and Nivelle rivers). While all three rivers have gradually warmed over the last 35 years, changes in discharge have been very heterogeneous. Juveniles more frequently used warmer temperatures to migrate. Adults migrating a few weeks before spawning more frequently used warm temperatures associated with high discharges. This has already led to modifications in preferential niches of both life stages and suggests a potential mismatch between these populations' ecological preference and changes in their local environment due to global change.
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Affiliation(s)
- Elorri Arevalo
- INRAE, Unité EABX-Écosystèmes Aquatiques et Changements Globaux, HYNES (Irstea-EDF R&D), 50 avenue de Verdun, 33612 Cestas Cedex, France
| | - Anthony Maire
- EDF Recherche et Développement, Laboratoire National d'Hydraulique et Environnement, HYNES (Irstea-EDF R&D), 6 quai Watier, 78401 Chatou Cedex, France
| | - Stéphane Tétard
- ICEO Environnement, 220 rue des Ailes, 85440 Talmont-Saint-Hilaire, France
| | - Etienne Prévost
- Université de Pau et des Pays de l'Adour, e2s UPPA, INRAE, ECOBIOP, Saint-Pée-sur-Nivelle, France
| | - Frédéric Lange
- Université de Pau et des Pays de l'Adour, e2s UPPA, INRAE, ECOBIOP, Saint-Pée-sur-Nivelle, France
| | - Frédéric Marchand
- INRAE, Unité Expérimentale d'Écologie et d'Écotoxicologie Aquatique, 65, rue de Saint-Brieuc, 35042 Rennes CEDEX, France
| | - Quentin Josset
- UMR BOREA 7208, Muséum National D'Histoire Naturelle, Service des Stations Marines, 35800 Dinard, France.,MIAME - Management of Diadromous Fish in their Environment, OFB, INRAE, Institut Agro, UNIV PAU & PAYS ADOUR/E2S UPPA, Rennes, France.,Office Français de la Biodiversité, Direction Recherche et Appui Scientifique, Rue des Fontaines, 76260 Eu, France
| | - Hilaire Drouineau
- INRAE, Unité EABX-Écosystèmes Aquatiques et Changements Globaux, HYNES (Irstea-EDF R&D), 50 avenue de Verdun, 33612 Cestas Cedex, France
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O'Sullivan AM, Corey E, Cunjak RA, Linnansaari T, Curry RA. Salmonid thermal habitat contraction in a hydrogeologically complex setting. Ecosphere 2021. [DOI: 10.1002/ecs2.3797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Antóin M. O'Sullivan
- FOREM University of New Brunswick 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Canadian Rivers Institute 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
| | - Emily Corey
- FOREM University of New Brunswick 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Biology University of New Brunswick 10 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
| | - Richard A. Cunjak
- FOREM University of New Brunswick 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Canadian Rivers Institute 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Biology University of New Brunswick 10 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
| | - Tommi Linnansaari
- FOREM University of New Brunswick 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Canadian Rivers Institute 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Biology University of New Brunswick 10 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
| | - R. Allen Curry
- FOREM University of New Brunswick 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Canadian Rivers Institute 2 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
- Biology University of New Brunswick 10 Bailey Dr. Fredericton New Brunswick E3B 5A3 Canada
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