The effects of climate change on the ecology of fishes

PLOS Climate, Год журнала: 2023, Номер 2(8), С. e0000258 - e0000258

Опубликована: Авг. 7, 2023

Ocean warming and acidification are set to reshuffle life on Earth alter ecological processes that underpin the biodiversity, health, productivity, resilience of ecosystems. Fishes contribute significantly marine, estuarine, freshwater species diversity functioning marine ecosystems, not immune climate change impacts. Whilst considerable effort has been placed studying effects fishes, much emphasis their (eco)physiology at organismal level. affected by through impacts various levels biological organisation a large variety traits, making it difficult make generalisations regarding fish responses change. Here, we briefly review current state knowledge fishes across wide range subfields ecology evaluate these scales (from genes ecosystems). We argue more holistic synthesis interconnected integration different needed for better understanding how populations communities might respond or adapt multi-stressor postulate studies using natural analogues change, meta-analyses, advanced integrative modelling approaches, lessons learned from past extreme events could help reveal some general patterns valuable management conservation approaches. many underlying mechanisms responsible observed biodiversity community insights useful create adaptation strategies preservation in rapidly changing ocean.

Язык: Английский

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The effects of environmental changes on the endocrine regulation of feeding in fishes

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 379(1898)

Опубликована: Фев. 5, 2024

Fishes are exposed to natural and anthropogenic changes in their environment, which can have major effects on behaviour physiology, including feeding behaviour, food intake digestive processes. These alterations owing the direct action of environmental physico-chemical parameters (i.e. temperature, pH, turbidity) physiology but also be a consequence variations availability. Food is ultimately regulated by centres brain, receive process information from endocrine signals both brain peripheral tissues such as gastrointestinal tract. stimulate or inhibit intake, interact with each other maintain energy homeostasis. Changes conditions might change habits rates, thus affecting levels stores, expression appetite regulators. This review provides an overview how availability could affect these networks fishes. article part theme issue ‘Endocrine responses variation: conceptual approaches recent developments’.

Язык: Английский

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The heat shock matters with specific attention to the expression of Hsp60 under thermal stress in fish: A critical review

Ecological Genetics and Genomics, Год журнала: 2025, Номер unknown, С. 100337 - 100337

Опубликована: Фев. 1, 2025

Язык: Английский

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Structural and functional evolution of the mechanosensory lateral line system of fishes

The Journal of the Acoustical Society of America, Год журнала: 2023, Номер 154(6), С. 3526 - 3542

Опубликована: Дек. 1, 2023

The mechanosensory lateral line system is the flow sensing present in all 34 000+ species of fishes. Its neuromast receptor organs, located on skin or bony canals head and tubed scales trunk, respond to near field component acoustic stimuli as well short range, low frequency (0–200 Hz) water flows biotic abiotic origin. Here, I discuss genesis my research career its focus structural functional evolution among a wide taxonomic range fishes including those from different aquatic habitats (tropical lakes coral reefs deep sea). importance investigating structure before function, using investigations laboratory that had unexpected outcomes, role serendipity nature scientific discovery.

Язык: Английский

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Reviews and syntheses: Biological indicators of low-oxygen stress in marine water-breathing animals

Biogeosciences, Год журнала: 2024, Номер 21(22), С. 4975 - 5004

Опубликована: Ноя. 14, 2024

Abstract. Anthropogenic warming and nutrient over-enrichment of our oceans have resulted in significant, often catastrophic, reductions dissolved oxygen (deoxygenation). Stress on water-breathing animals from this deoxygenation has been shown to occur at all levels biological organization: cellular, organ, individual, species, population, community, ecosystem. Most climate forecasts predict increases ocean deoxygenation; thus, it is essential develop reliable indicators low-oxygen stress that can be used by regional global monitoring efforts detect assess the impacts life. This review focuses responses are manifest different organization a variety spatial temporal scales. We compare particular attributes these threshold response, timescales sensitive life stages taxa, ability scale response across organization. Where there available evidence, we discuss interactions other abiotic stressors stress. address utility, confounding effects, implementation for research societal applications. Our hope further refinement dissemination will provide more direct support environmental managers, fisheries mariculture scientists, conservation professionals, policymakers confront challenges deoxygenation. An improved understanding sensitivity communities, ecosystems empower design programs, ecosystem health, management guidelines, track conditions, events.

Язык: Английский

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Warming affects routine swimming activity and novel odour response in larval zebrafish

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Ноя. 29, 2023

Temperature is a primary factor affecting the physiology of ectothermic animals and global warming water bodies may therefore impact aquatic life. Understanding effects near-future predicted temperature changes on behaviour underlying molecular mechanisms particular importance, since mediates survival. In this study, we investigate developmental locomotory olfactory learning in zebrafish, Danio rerio. We exposed zebrafish from embryonic stage to either control (28 °C) or elevated (30 for seven days. Overall, reduced routine swimming activity caused upregulation metabolism neuron development genes. When cues, namely catfish cue, non-alarming but novel odour, conspecifics alarming differently affected larvae response two cues. An increase large transcriptional reprogramming was observed at with cell signalling, functioning As coupled downregulation genes involved protein translation ATP metabolism, odour recognition future-predicted thermal conditions would require energetic trade-offs between expensive baseline processes responsive functions. To evaluate their abilities both temperatures, were conditioned mixture alarm cue cue. Regardless temperature, no behavioural nor gene expression detected, reinforcing our findings that mainly affects odours. results show future will likely developing stages, causing following detection environment.

Язык: Английский

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Reviews and syntheses: Biological Indicators of Oxygen Stress in Water Breathing Animals

Опубликована: Март 20, 2024

Abstract. Anthropogenic warming and nutrient over-enrichment of our oceans have resulted in significant, often catastrophic, reductions dissolved oxygen (deoxygenation). Stress on water-breathing animals from this deoxygenation has been shown to occur at all levels biological organization: cellular; organ; individual; species; population; community; ecosystem. Most climate forecasts predict increases ocean deoxygenation, thus it is essential develop reliable indicators stress that can be used by regional global monitoring efforts detect assess the impacts life. This review focuses low-oxygen are manifest different organization a variety spatial temporal scales. We compare particular attributes these threshold response, time-scales sensitive life stages taxa, ability scale response across organization. Where there available evidence, we discuss interactions other abiotic stressors stress. address utility, confounding effects, implementation for both research societal applications. Our hope further refinement dissemination will provide more direct support environmental managers, fisheries mariculture scientists, conservation professionals, policy makers confront challenges deoxygenation. An improved understanding sensitivity species, communities ecosystems low empower design programs, ecosystem health, management guidelines, track conditions, events.

Язык: Английский

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Comment on egusphere-2024-616

Опубликована: Май 9, 2024

Abstract. Anthropogenic warming and nutrient over-enrichment of our oceans have resulted in significant, often catastrophic, reductions dissolved oxygen (deoxygenation). Stress on water-breathing animals from this deoxygenation has been shown to occur at all levels biological organization: cellular; organ; individual; species; population; community; ecosystem. Most climate forecasts predict increases ocean deoxygenation, thus it is essential develop reliable indicators stress that can be used by regional global monitoring efforts detect assess the impacts life. This review focuses low-oxygen are manifest different organization a variety spatial temporal scales. We compare particular attributes these threshold response, time-scales sensitive life stages taxa, ability scale response across organization. Where there available evidence, we discuss interactions other abiotic stressors stress. address utility, confounding effects, implementation for both research societal applications. Our hope further refinement dissemination will provide more direct support environmental managers, fisheries mariculture scientists, conservation professionals, policy makers confront challenges deoxygenation. An improved understanding sensitivity species, communities ecosystems low empower design programs, ecosystem health, management guidelines, track conditions, events.

Язык: Английский

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Parental thermal conditions affect the brain activity response to alarm cue in larval zebrafish

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Июнь 3, 2024

Abstract With temperature being a crucial factor affecting the physiology of ectothermic animals, global warming will likely impact neural mechanisms aquatic organisms use to perceive their environment over generations. However, exposure elevated during specific life stages and across generations may confer fish resilience through phenotypic plasticity. In this study, we investigate effects developmental parental on brain activity response an olfactory cue in larval zebrafish, Danio rerio . We exposed parents reproduction offspring development control (28°C) or (30°C) observed telencephalon alarm using live calcium imaging. Parental decreased time till maximum regardless offspring’s temperature, revealing that thermal conditions can affect excitability circuitry. Furthermore, duration was affected by interaction between conditions, tending last longer when either were yet more similar experienced both offspring. This could represent anticipatory effect influencing match environment, early occurring within susceptible short window post-fertilization. Overall, our results suggest future predicted alter processes involved transmission show aid preparation respond stimuli changing environment.

Язык: Английский

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Comment on egusphere-2024-616

Опубликована: Июль 24, 2024

Abstract. Anthropogenic warming and nutrient over-enrichment of our oceans have resulted in significant, often catastrophic, reductions dissolved oxygen (deoxygenation). Stress on water-breathing animals from this deoxygenation has been shown to occur at all levels biological organization: cellular; organ; individual; species; population; community; ecosystem. Most climate forecasts predict increases ocean deoxygenation, thus it is essential develop reliable indicators stress that can be used by regional global monitoring efforts detect assess the impacts life. This review focuses low-oxygen are manifest different organization a variety spatial temporal scales. We compare particular attributes these threshold response, time-scales sensitive life stages taxa, ability scale response across organization. Where there available evidence, we discuss interactions other abiotic stressors stress. address utility, confounding effects, implementation for both research societal applications. Our hope further refinement dissemination will provide more direct support environmental managers, fisheries mariculture scientists, conservation professionals, policy makers confront challenges deoxygenation. An improved understanding sensitivity species, communities ecosystems low empower design programs, ecosystem health, management guidelines, track conditions, events.

Язык: Английский

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