Combined effects of ocean warming and acidification on marine fish and shellfish: A molecule to ecosystem perspective

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 802, P. 149807 - 149807

Published: Aug. 21, 2021

Language: Английский

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Shellfish-algal systems as important components of fisheries carbon sinks: Their contribution and response to climate change

Environmental Research, Journal Year: 2023, Volume and Issue: 224, P. 115511 - 115511

Published: Feb. 15, 2023

Language: Английский

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Differential effects of ocean acidification and warming on biological functioning of a predator and prey species may alter future trophic interactions

Marine Environmental Research, Journal Year: 2023, Volume and Issue: 186, P. 105903 - 105903

Published: Feb. 4, 2023

Independently, ocean warming (OW) and acidification (OA) from increased anthropogenic atmospheric carbon dioxide are argued to be two of the greatest threats marine organisms. Increasingly, their interaction (ocean warming, OAW) is shown have wide-ranging consequences biological functioning, population community structure, species interactions ecosystem service provision. Here, using a multi-trophic experiment, we tested effects future OAW scenarios on widespread intertidal species, blue mussel Mytilus edulis its predator Nucella lapillus. Results indicate negative growth, feeding metabolic rate M. heightened predation risk. In contrast, growth metabolism was unaffected under but declined OW suggesting OA may offset consequences. Should this differential response between OAW, specifically greater physiological costs prey than come fruition in nature, fundamental change structure functioning could expected as trophic become disrupted.

Language: Английский

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Marine heat waves differentially affect functioning of native (Ostrea edulis) and invasive (Crassostrea [Magallana] gigas) oysters in tidal pools

Marine Environmental Research, Journal Year: 2021, Volume and Issue: 172, P. 105497 - 105497

Published: Oct. 13, 2021

Language: Английский

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Phenotypic response to different predator strategies can be mediated by temperature

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(9)

Published: Aug. 31, 2023

Temperature change affects biological systems in multifaceted ways, including the alteration of species interaction strengths, with implications for stability populations and communities. Temperature-dependent changes to antipredatory responses are an emerging mechanism destabilization thus there is a need understand how prey respond predation pressures face changing temperatures. Here, using ciliate protozoans, we assess whether temperature can alter strength phenotypic antipredator this relationship depends on predator's hunting behavior. We exposed

Language: Английский

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Impacts of ocean warming and acidification on predator-prey interactions in the intertidal zone: A research weaving approach

Journal of Experimental Marine Biology and Ecology, Journal Year: 2023, Volume and Issue: 568, P. 151946 - 151946

Published: Sept. 16, 2023

Language: Английский

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Exposure of commercially exploited shellfish to changing pH levels: how to scale-up experimental evidence to regional impacts

ICES Journal of Marine Science, Journal Year: 2022, Volume and Issue: 79(9), P. 2362 - 2372

Published: Sept. 13, 2022

Abstract Ocean acidification has become one of the most intensively studied climate change topics and it is expected to have both direct indirect impacts on species, ecosystems, economies. Experiments been performed different taxa, life stages, at pH levels. Despite this wealth information, several key challenges remain, including (1) uncertainty about how incorporate current ranges variability experienced by organisms into experiments, (2) bring information together support analysis assessments broader ecosystem level. Sophisticated modelling tools are needed ‘scale-up’ from experimental results regional-scale insights. This paper highlights combining determine commercially exploited species may be affected under future levels, might better aligned, using northwest Europe waters around British Isles as an example. We argue that in cases evidence does not offer sufficient projected experiments should designed consider levels actually organisms, well pH. These types study safeguarding shellfish stocks.

Language: Английский

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Acidification and high-temperature impacts on energetics and shell production of the edible clam Ameghinomya antiqua

Frontiers in Marine Science, Journal Year: 2022, Volume and Issue: 9

Published: Sept. 12, 2022

Warming and ocean acidification are currently critical global change drivers for marine ecosystems due to their complex irreversible effects on the ecology evolution of communities. Changes in chemistry temperature impact biological performance resources by affecting energy budget thus imposing energetic restrictions trade-offs survival, growth, reproduction. In this study, we evaluated interplaying increased p CO 2 levels economically relevant clam Ameghinomya antiqua , an infaunal bivalve inhabiting a wide distributional range along coast Chile. Juvenile clams collected from southern Chile were exposed 90-day experimental set-up emulating current future scenario projeced end century both high /low-pH (10 15°C) projected Chilean coast. Clams showed physiological plasticity different environmental scenarios without mortality. addition, our results that specimens under low-pH conditions not able meet requirements when imposed maintenance costs, consequently showing metabolic depression. Indeed, although calcification rate was negative high- scenario, it determined amount shell loss. These indicate studied can face changes short-term periods modifying allocation growth processes, but with possible long-term population endangering sustainability important benthic artisanal fisheries resource.

Language: Английский

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Juvenile Dungeness crab foraging behavior and lipid composition is altered more by food quantity than seawater pH in a multi-stressor experiment

Journal of Experimental Marine Biology and Ecology, Journal Year: 2023, Volume and Issue: 563, P. 151897 - 151897

Published: March 13, 2023

Increases in atmospheric, anthropogenic carbon are driving reductions seawater pH, a process referred to as ocean acidification. Reduced pH can influence behavior of marine animals, but little is currently known about how juvenile crustaceans will respond. We conducted lab experiments improve our understanding the consequences exposure and food quantity on Dungeness crab (Metacarcinus magister, (Dana, 1852)) nutritional condition. To understand foraging sensing crab, this interacts with their status, we exposed recently settled second instar juveniles either ambient or reduced for 42-d, crossed 'maintenance'- low-quantity 'challenge' diet treatment. After experimental period, introduced into experiments. In experiment, placed arena unidirectional flow, where measured discovery time allocation activities 300-s trials all individual crab. Food influenced both speed which identified there was no interactive effect factors. For used two-current flume plumbed seawater. This flow-through provided choice between treatment waters allowed us measure amount individuals spent side trials. There prior addition trials, evaluated condition by quantifying total lipid content whole-body tissues fatty acid profile composition fed maintenance during period. The proportional profiles differed based exposure, effects. However, did not detect differences concentrations key summary categories acids (e.g., saturated, monounsaturated, polyunsaturated) exposure. Our results indicate that availability has greater impact than representing 0.3 unit decrease predicted 2100.

Language: Английский

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Population-specific effects of ocean acidification in the Olympia oyster

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 12, 2023

Abstract Populations of marine species that respond differently to ocean acidification offer natural reservoirs biodiversity can be leveraged for conservation efforts and sustain food systems. The molecular physiological traits associated with tolerance must first identified. This study oysters from three phenotypically distinct populations the Olympia oyster, Ostrea lurida , but were bred reared in common conditions four years. We assessed their growth, reproductive development, transcriptional response within across generations. Responses reveal energetic trade-offs reflect unique physiotypes previously observed among populations. population slowest growth high survival rates, Dabob Bay, mounted largest without effects reproduction. A moderate was fastest rate lowest fecundity (Fidalgo Bay). Oyster highest did not at transcript level. Bay also only which negatively affected development. While exposure affect gene expression next generation’s larval stage, it result larger larvae population, could partially alleviate negative wild population. Given its rates previous studies, we then identified genes uniquely expressed compared other Genes involved antibacterial antiviral processes, metabolism, reproduction many similar functions both adults larvae, provides insight into mechanisms behind a stress-tolerant oyster population-specific responses illustrate diversity strategies O. balance demands reproduction, cellular maintenance, offspring viability. Taken together this reveals there are invertebrate on small geographic scales implications resilience environmental stressors.

Language: Английский

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