Mean reef fish body size decreases towards warmer waters

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(2)

Published: Feb. 1, 2024

Abstract Aquatic ectotherms often attain smaller body sizes at higher temperatures. By analysing ~15,000 coastal‐reef fish surveys across a 15°C spatial sea surface temperature (SST) gradient, we found that the mean length of in communities decreased by ~5% for each 1°C increase space, or 50% decrease from 14 to 29°C annual SST. Community size change was driven differential responses within trophic groups and temperature‐driven their relative abundance. Herbivores, invertivores planktivores became on average warmer temperatures, but no trend piscivores. Nearly 25% temperature‐related community attributable composition warmest sites, colder this <1% due being similarly sized. Our findings suggest small changes are associated with large sizes, important ecological implications.

Language: Английский

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Effects of climate warming

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 14 - 31

Published: Jan. 1, 2024

Language: Английский

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Stronger effect of temperature on body growth in cool than in warm populations suggests lack of local adaptation

Ecography, Journal Year: 2025, Volume and Issue: unknown

Published: May 14, 2025

Body size is a key functional trait that has declined in many biological communities, partly due to changes individual growth rates response climate warming. However, our understanding of responses natural populations limited by relatively short time series without large temperature contrasts and unknown levels adaptation local temperatures across within species. In this study, we collated back‐calculated length‐at‐age data for the fish Eurasian perch Perca fluviatilis from 10 along Baltic Sea coast between 1953 2015 (142 023 measurements). We fitted trajectories using von Bertalanffy equation, reconstructed generalized linear mixed models three sources. Leveraging uniquely contrast change artificial heating nuclear power plants two examined populations, then estimated population‐specific global (across populations) growth–temperature relationships Bayesian models, evaluated whether are locally adapted environmental temperatures. found little evidence body growth. Populations did not exhibit unique optimum nor at common reference temperature. Instead, curves mapped onto curve, resulting increasing with warming cold but decreasing one warmer populations. Understanding effects on critical generalizing predictions impacts size, which affects multiple organization individuals ecosystem functioning.

Language: Английский

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The effect of environmental factors on fish growth

Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 493 - 506

Published: Oct. 28, 2023

Language: Английский

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Multi-decadal warming alters predator’s effect on prey community composition

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2028)

Published: Aug. 1, 2024

Predator responses to warming can occur via phenotypic plasticity, evolutionary adaptation or a combination of both, changing their top-down effects on prey communities. However, we lack evidence how warming-induced changes in predators may influence natural food webs. Here, ask whether wild fish subject across multiple generations differ impacts communities compared with nearby conspecifics experiencing thermal regime. We carried out common garden mesocosm experiment larval perch ( Perca fluviatilis ), originating from heated reference coastal environment, feeding zooplankton under gradient experimental temperatures. Overall, the presence origin, abundance was higher and did not change warming, whereas unheated it declined temperature. Responses taxonomic size composition suggest that larvae origin consume more large-sized taxa as temperature increases. Our findings show differences between populations, potentially representing long-term environments, affect abundance, biomass, species This suggests rapid microevolution ongoing climate might have indirect cross-generational ecological consequences propagating through

Language: Английский

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Ecosystem heating experiment reveals sex-specific growth responses in fish

Canadian Journal of Fisheries and Aquatic Sciences, Journal Year: 2023, Volume and Issue: 81(1), P. 90 - 96

Published: Oct. 6, 2023

Size-specific body growth responses to warming are common among animal taxa, but sex-specific poorly known. Here we ask if sex-dependent, and such vary with size age. This was tested data of back-calculated individual trajectories, in European perch ( Perca fluviatilis) from a long-term whole-ecosystem experiment (6.3 °C above the surrounding sea). Warming led both size- differences responses. had consistent positive effect on females, negative effects male at > 10 cm age 2 years. These translate an increased degree female-biased sexual dimorphism (in length-at-age) warming. Although exact temperature-mediated underlying differential could not be resolved, results imply global may have highly different during ontogeny female perch. Such should considered climate scenarios concerning fish growth, population size-structure, dynamics aquatic food webs that include exhibiting dimorphism.

Language: Английский

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Multi-decadal warming alters predator’s effect on prey community composition

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: March 21, 2024

Abstract Predator responses to warming can occur via phenotypic plasticity and evolutionary adaptation, resulting in changes their prey communities. However, we lack evidence of how warming-induced predators influence the food web. Here, ask whether fish subject long-term across multiple generations differ impacts on communities compared nearby conspecifics experiencing a natural thermal regime. We carried out common garden mesocosm experiment with larval perch ( Perca fluviatilis ), originating from one heated or reference coastal environment, feeding zooplankton under gradient experimental temperatures. found that origin influenced communities, differently so depending temperature. In presence origin, there were less also fewer individuals large size, except for at intermediate Our findings show differences between populations, potentially representing adaptation local caused by multi-generational cascade down trophic interactions affect Considering climate warming, our results suggest rapid evolution might have indirect cross-generational ecological consequences propagating through webs.

Language: Английский

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Growth patterns and population dynamics of Chiton articulatus (Mollusca: Polyplacophora): A multi-decade study

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 199, P. 106604 - 106604

Published: June 17, 2024

Language: Английский

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Trait‐Based Indicators of Marine Communities' Sensitivity to Climate Change and Fishing

Diversity and Distributions, Journal Year: 2024, Volume and Issue: 31(1)

Published: Dec. 26, 2024

ABSTRACT Aim Overexploitation of wildlife and anthropogenic climate change are key drivers global biodiversity loss. Investigating how these stressors interact affect ecosystems is critical for conservation efforts. Following trait‐based vulnerability assessments, we propose two community‐level sensitivity indicators: ( S CC ) fishing pressure FP ). Location Cantabrian Spanish Mediterranean Sea. Methods Both indicators were calculated 246 fish megabenthos species, sampled during 1994–2019 in areas with contrasting levels warming pressure. Indicator calculation was based on traits that, according to existing evidence, can be linked (1) (scored as (2) Using each species' scores, abundance data from the surveys, explored whether areas' has changed spatiotemporally line expected functional responses predominant pressures. Results Although both regions have warmed, far more so. Its decreased, reflecting a shift composition warm‐sensitive warm‐affinity species. In contrast, dynamics Sea varied, species increasing deeper decreasing towards inner Bay Biscay. Decreasing paralleled an increase Sea, particularly among slow‐reproducing, longer‐lived The Mediterranean, however, showed relative loss fishing‐sensitive, long‐lived cases spatial heterogeneity. Main Conclusions Associations revealed between , fishing, respectively. We conclude that valuable sensitivities pressures, discuss limitations assumptions underly this other approaches. recommend wider usage kind indicators, which could applied globally understand risks marine communities fishing.

Language: Английский

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Non-linear growth-temperature relationship leads to opposite responses to warming in cold versus warm populations

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 20, 2024

Abstract Body size is a key functional trait that has declined in many biological communities, partly due to changes individual growth rates response climate warming. However, our understanding of responses natural ecosystems limited by relatively short time series without large temperature contrasts and unknown levels adaptation local temperatures across populations. In this study, we collated back-calculated length-at-age data for the fish Eurasian perch ( Perca fluviatilis ) from 10 populations along Baltic Sea coast between 1953–2015 (142023 measurements). We fitted individual-level trajectories using von Bertalanffy equation, reconstructed generalized additive models three sources. Leveraging uniquely contrast change artificial heating, then estimated population-specific global growth-temperature relationships Bayesian mixed models, evaluated if they conformed adaption or not. found little evidence temperature-dependence curves. Instead, curves mapped onto curve, resulting body increasing with warming cold but decreasing warm Understanding which degree effects on are critical generalizing predictions impacts growth, affecting multiple organisation individuals ecosystem functioning.

Language: Английский

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