What do warming waters mean for fish physiology and fisheries?

Journal of Fish Biology, Год журнала: 2020, Номер 97(2), С. 328 - 340

Опубликована: Май 22, 2020

Environmental signals act primarily on physiological systems, which then influence higher-level functions such as movement patterns and population dynamics. Increases in average temperature variability associated with global climate change are likely to have strong effects fish physiology thereby populations fisheries. Here we review the principal mechanisms that transduce responses those fish. Temperature has a direct, thermodynamic effect biochemical reaction rates. Nonetheless, plastic longer-term thermal mean fishes can modulate their acute compensate at least partially for effects. Energetics particularly relevant growth movement, therefore fisheries, pronounced energy metabolism. All (ATP) production is ultimately linked mitochondria, mitochondrial efficiency maximal capacities. Mitochondria dependent oxygen ultimate electron acceptor so cardiovascular function delivery link environmental inputs Growth efficiency, conversion of food into tissue, changes temperature, there indications warmer water leads decreased efficiencies. Moreover, migration relies muscle function, ATP but also intracellular calcium cycling within myocyte. Neuroendocrine processes regulated level different tissues, including muscle. These individuals scale up change. A mechanistic understanding essential predict vulnerability species

Язык: Английский

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A review of the influences of microplastics on toxicity and transgenerational effects of pharmaceutical and personal care products in aquatic environment

The Science of The Total Environment, Год журнала: 2020, Номер 732, С. 139222 - 139222

Опубликована: Май 11, 2020

Язык: Английский

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Multigenerational and Transgenerational Effects of Environmentally Relevant Concentrations of Endocrine Disruptors in an Estuarine Fish Model

Environmental Science & Technology, Год журнала: 2020, Номер 54(21), С. 13849 - 13860

Опубликована: Сен. 29, 2020

Many pollutants cause endocrine disruption in aquatic organisms. While studies of the direct effects toxicants on exposed organisms are commonplace, little is known about potential for toxicant exposures a parental (F0) generation to affect unexposed F1 or F2 generations (multigenerational and transgenerational effects, respectively), particularly estuarine fishes. To investigate this possibility, we inland silversides (Menidia beryllina) environmentally relevant (low ng/L) concentrations ethinylestradiol, bifenthrin, trenbolone, levonorgestrel from 8 hpf 21 dph. We then measured development, immune response, reproduction, gene expression, DNA methylation two subsequent following exposure. Larval exposure each compound resulted negative F0 generations, ethinylestradiol levonorgestrel, also. The specific endpoints that were responsive varied, but included increased incidence larval deformities, reduced growth survival, impaired function, skewed sex ratios, ovarian atresia, egg production, altered expression. Additionally, fish exhibited differences selected genes, across all three indicating epigenetic transfer effects. These findings suggest assessments multiple key determining full magnitude adverse contaminant early life.

Язык: Английский

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Early Life Exposure to Environmentally Relevant Levels of Endocrine Disruptors Drive Multigenerational and Transgenerational Epigenetic Changes in a Fish Model

Frontiers in Marine Science, Год журнала: 2020, Номер 7

Опубликована: Июнь 24, 2020

The inland silverside, Menidia beryllina, is a euryhaline fish and model organism in ecotoxicology. We previously showend that exposure to picomolar (ng/L) levels of endocrine disrupting chemicals (EDCs) can cause variety effects M. from changes gene expression phenotypic alterations. Here we explore the potential for early life EDCs modify epigenome silversides, with focus on multi- transgenerational effects. included contaminants emerging concern (the pyrethroid insecticide bifenthrin synthetic progestin levonorgestrel), as well commonly detected estrogen (ethinylestradiol), androgen (trenbolone) at ranging 3 10 ng/L. In multigenerational experiment, exposed parental silversides fertilization until 21 days post hatch (dph). Then assessed DNA methylation patterns three generations (F0, F1, F2) whole body larval using reduced representation bisulfite sequencing (RRBS). found significant ( = 0.05) differences promoter and/or treatment relative controls all indicating both (F1) (F2) were caused by strict inheritance alterations dysregulation epigenetic control mechanisms. Using ontology pathway analyses, enrichment biological processes pathways representative growth development, immune function, reproduction, pigmentation, regulation, stress response repair (including important carcinogenesis). Further, subset potentially EDC responsive genes (EDCRGs) differentially methylated across treatments hormone receptors, involved steroidogenesis, prostaglandin synthesis, sexual methylation, protein metabolism cell signaling, neurodevelopment. analysis EDCRGs provided additional evidence differential inherited offspring EDC-treated animals, sometimes F2 generation was never exposed. These findings show low, environmentally relevant altered are functionally impaired phenotypes documented EDC-exposed animals has affect regulation future fish.

Язык: Английский

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A 2021 Horizon Scan of Emerging Global Biological Conservation Issues

Trends in Ecology & Evolution, Год журнала: 2020, Номер 36(1), С. 87 - 97

Опубликована: Ноя. 17, 2020

Язык: Английский

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Developmental exposure to environmentally relevant concentrations of bifenthrin alters transcription of mTOR and ryanodine receptor-dependent signaling molecules and impairs predator avoidance behavior across early life stages in inland silversides (Menidia beryllina)

Aquatic Toxicology, Год журнала: 2018, Номер 206, С. 1 - 13

Опубликована: Окт. 24, 2018

Язык: Английский

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Trophic transfer, bioaccumulation and transcriptomic effects of permethrin in inland silversides, Menidia beryllina, under future climate scenarios

Environmental Pollution, Год журнала: 2021, Номер 275, С. 116545 - 116545

Опубликована: Янв. 28, 2021

Язык: Английский

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Salinity Alters Toxicity of Commonly Used Pesticides in a Model Euryhaline Fish Species (Menidia beryllina)

Toxics, Год журнала: 2021, Номер 9(5), С. 114 - 114

Опубликована: Май 20, 2021

Changing salinity in estuaries due to sea level rise and altered rainfall patterns, as a result of climate change, has the potential influence interactions aquatic pollutants well alter their toxicity. From chemical property point view, ionic concentration can increase octanol–water partition coefficient thus decrease water solubility compound. Biologically, organism physiology enzyme metabolism are also at different salinities with implications for drug toxic effects. This highlights need understand on pesticide toxicity when assessing risk estuarine marine fishes, particularly considering that change is predicted regimes globally many assessments regulatory decisions made using freshwater studies. Therefore, we exposed Inland Silverside (Menidia beryllina) an early life stage seven commonly used pesticides two relevant waters (5 PSU 15 PSU). Triadimefon was only compound show statistically significant LC50. However, all compounds showed LC50 values higher salinity, but one LC10 value. Many organisms rely nurseries increased may mean critical stages development experiencing adverse, The differences demonstrated here have important living within ecosystems Anthropocene alters globally.

Язык: Английский

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Interactive effects of anthropogenic environmental drivers on endocrine responses in wildlife

Molecular and Cellular Endocrinology, Год журнала: 2022, Номер 556, С. 111737 - 111737

Опубликована: Авг. 2, 2022

Язык: Английский

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Climate Change Impacts on San Francisco Estuary Aquatic Ecosystems: A Review

San Francisco Estuary and Watershed Science, Год журнала: 2022, Номер 20(2)

Опубликована: Июнь 24, 2022

Climate change is intensifying the effects of multiple interacting stressors on aquatic ecosystems, particularly in estuaries. In San Francisco Estuary, signals climate are apparent long-term monitoring record. Here we synthesize current and potential future three main ecosystems (floodplain, tidal marsh, open water) upper estuary two representative native fishes that commonly occur these (anadromous Chinook Salmon, Oncorhynchus tshawytscha estuarine resident Sacramento Splittail, Pogonichthys macrolepidotus). Based our review, found experiencing shifting baseline environmental conditions, amplification extremes, restructuring physical habitats biological communities. We present priority topics for research monitoring, a conceptual model how currently functions relation to variables. addition, discuss four tools management effects: regulatory, water infrastructure, habitat development, measures. conclude adapting requires fundamental changes management.

Язык: Английский

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