Temperature increase and its effects on fish stress physiology in the context of global warming

Journal of Fish Biology, Год журнала: 2020, Номер 98(6), С. 1496 - 1508

Опубликована: Окт. 28, 2020

Abstract The capacity of fishes to cope with environmental variation is considered be a main determinant their fitness and partly determined by stress physiology. By 2100, global ocean temperature expected rise 1–4°C, potential consequences for Global warming affecting animal populations worldwide through chronic increases an increase in the frequency extreme heatwave events. As ectotherms, are particularly vulnerable warming. Although little information available about effects on physiology nature, multiple studies describe controlled laboratory conditions, providing insight into what can wild. Chronic constitutes physiological load that alter ability additional stressors, which might compromise fitness. In addition, rapid known induce acute responses ecological relevance particular situations. This review summarizes knowledge discusses these context

Язык: Английский

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Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Journal of the World Aquaculture Society, Год журнала: 2021, Номер 53(2), С. 314 - 366

Опубликована: Сен. 21, 2021

Abstract Climate change‐induced extreme temperature events are becoming more intense and frequent. For fish, is the master abiotic factor that controls limits fish development physiology at all stages of aquaculture. Major physiological constraints individual level underpin changes in growth, hemato‐physiology, metabolism, immune molecular stress responses to events. Extreme impacts on vary among within diverse species depending magnitude associated factors. This review synthesizes climate neuroendocrine, oxidative, metabolic, osmotic, molecular, hemato‐biochemical, related Besides, overall aspects growth reproduction also discussed. Possible mitigation measures maintain fish's fitness during addressed. However, studies interactive effects with other environmental stressors needed across a broader range gain better understanding response aquaculture performance Moreover, for alternative species, stress‐tolerant strains, possibilities nutritional as potential option combat promising should be pursued future studies.

Язык: Английский

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Fish reproduction in a warming world: vulnerable points in hormone regulation from sex determination to spawning

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

Опубликована: Фев. 5, 2024

Reproduction in fishes is sensitive to temperature. Elevated temperatures and anomalous ‘heat waves’ associated with climate change have the potential impact fish reproductive performance and, some cases, even induce sex reversals. Here we examine how thermal sensitivity hormone pathways regulating reproduction provides a framework for understanding impacts of warmer conditions on reproduction. Such effects will differ depending evolved variation temperature endocrine processes determination/differentiation, gametogenesis spawning, as well developmental timing those varies ecology. For populations unable shift geographical range, persistence under future climates may require changes responsiveness processes. How among species, generate maxima reproduction, rapidly tolerances can via adaptation or transgenerational plasticity shape which are most at risk impaired rising temperatures. This article part theme issue ‘Endocrine responses environmental variation: conceptual approaches recent developments’.

Язык: Английский

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From gametogenesis to spawning: How climate‐driven warming affects teleost reproductive biology

Journal of Fish Biology, Год журнала: 2020, Номер 97(3), С. 607 - 632

Опубликована: Июнь 21, 2020

Abstract Ambient temperature modulates reproductive processes, especially in poikilotherms such as teleosts. Consequently, global warming is expected to impact the function of fish, which has implications for wild population dynamics, fisheries and aquaculture. In this extensive review spanning tropical cold‐water environments, we examine higher‐than‐optimal temperatures on teleost development physiology across stages, species, generations sexes. doing so, demonstrate that warmer‐than‐optimal can affect every stage from puberty through act spawning, these responses are mediated by age at spawning associated with changes multiple levels brain–pituitary–gonad axis. Response often species‐specific environmental history/transgenerational conditioning, amplitude, timing duration thermal exposure within a generation. Thermally driven physiology, gamete maturation typically culminate poor sperm oocyte quality, and/or advancement/delay/inhibition ovulation/spermiation spawning. Although field reproduction advanced many respects, identify areas where research lacking, males egg quality “omics” perspectives. Climate‐driven will continue disturb performance therefore guide future research, emerging transgenerational acclimation epigenetic studies, help understand project climate change impacts populations could also have

Язык: Английский

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Diversity and Convergence of Sex-Determination Mechanisms in Teleost Fish

Annual Review of Animal Biosciences, Год журнала: 2023, Номер 12(1), С. 233 - 259

Опубликована: Окт. 20, 2023

Sexual reproduction is prevalent across diverse taxa. However, sex-determination mechanisms are so that even closely related species often differ in systems. Teleost fish a taxonomic group with frequent turnovers of sex-determining and thus provides us great opportunities to investigate the molecular evolutionary underlying turnover Here, we compile recent studies on diversity fish. We demonstrate genes TGF-β signaling pathway frequently used for master (MSD) genes. MSD arise via two main mechanisms, duplication-and-transposition allelic mutations, few exceptions. also temperature influences sex determination many species, those chromosomes, higher temperatures inducing differentiation into males most cases. Finally, review theoretical models discuss what questions remain elusive.

Язык: Английский

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Adult sex ratios: causes of variation and implications for animal and human societies

Communications Biology, Год журнала: 2022, Номер 5(1)

Опубликована: Ноя. 19, 2022

Abstract Converging lines of inquiry from across the social and biological sciences target adult sex ratio (ASR; proportion males in population) as a fundamental population-level determinant behavior. The ASR, which indicates relative number potential mates to competitors population, frames selective arena for competition, mate choice, interactions. Here we review growing literature, focusing on methodological developments that sharpen knowledge demographic variables underlying ASR variation, experiments enhance understanding consequences imbalance societies, phylogenetic analyses provide novel insights into evolution. We additionally highlight areas where research advances are expected make accelerating contributions sciences, evolutionary biology, biodiversity conservation.

Язык: Английский

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Temperature effects on development and lifelong behavior in zebrafish

The Science of The Total Environment, Год журнала: 2025, Номер 973, С. 179172 - 179172

Опубликована: Март 20, 2025

Язык: Английский

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Future of Freshwater Ecosystems in a 1.5°C Warmer World

Frontiers in Environmental Science, Год журнала: 2021, Номер 9

Опубликована: Ноя. 30, 2021

Freshwater ecosystems are highly vulnerable to global warming because 1) their chief drivers, water quality and flow regimes, sensitive atmospheric warming, 2) they already extremely threatened by a wide range of interacting anthropogenic pressures. Even relatively modest 1.5°C poses considerable threat freshwater the many critical services these provide people. Shifts in composition function widely anticipated with adverse consequences for ecosystem services, including those underpinning food security. While extent severity effects is likely be significantly reduced if limited 1.5°C, concerted efforts implement recognised priorities policy management required mitigate unavoidable impacts reduce likelihood perverse outcomes climate mitigation adaptation other sectors—all which rely on fresh supply. provision water, must therefore considered first foremost when developing implementing any action.

Язык: Английский

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Sex Ratios in a Warming World: Thermal Effects on Sex-Biased Survival, Sex Determination, and Sex Reversal

Journal of Heredity, Год журнала: 2021, Номер 112(2), С. 155 - 164

Опубликована: Фев. 10, 2021

Abstract Rising global temperatures threaten to disrupt population sex ratios, which can in turn cause mate shortages, reduce growth and adaptive potential, increase extinction risk, particularly when ratios are male biased. Sex ratio distortion then have cascading effects across other species even ecosystems. Our understanding of the problem is limited by how often studies measure temperature both sexes. To address this, current review surveyed 194 published heat tolerance, finding that majority did not mention individuals used, with <10% reporting results for males females separately. Although data incomplete, this assessed phylogenetic patterns thermally induced bias 3 different mechanisms: sex-biased temperature-dependent determination (TSD), temperature-induced reversal. For documented examples span a large taxonomic range including arthropods, chordates, protists, plants. Here, superior tolerance more common than males, but direction appears be phylogenetically fluid, perhaps due number contributing factors. TSD, well-documented reptiles, where high usually favors females, fishes, consistently males. reversal, unambiguous cases again vertebrates, fishes amphibians, mixed reptiles. There urgent need further work on full extent distortion, joint multiple mechanisms.

Язык: Английский

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Sexual selection and speciation in the Anthropocene

Trends in Ecology & Evolution, Год журнала: 2024, Номер 39(7), С. 654 - 665

Опубликована: Март 18, 2024

Язык: Английский

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