Coherent long‐term body‐size responses across all Northwest Atlantic herring populations to warming and environmental change despite contrasting harvest and ecological factors

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(3)

Published: March 1, 2024

Abstract Body size is a key component of individual fitness and an important factor in the structure functioning populations ecosystems. Disentangling effects environmental change, harvest intra‐ inter‐specific trophic on body remains challenging for wild. Herring Northwest Atlantic provide strong basis evaluating hypotheses related to these drivers given that they have experienced significant warming over past century, while also having been exposed wide range other selective constraints across their range. Using data mean length‐at‐age 4 sixteen principal period 53 cohorts (1962–2014), we fitted series empirical models temporal between‐population variation response changes sea surface temperature. We find evidence unified cross‐population form parabolic function according which naturally warmer environments responded more negatively increasing temperature compared with those colder locations. Temporal residuals from this was highly coherent among populations, further suggesting common large‐scale driver. The synchrony observed study system, despite differences ecological histories time, clearly indicates dominant role change size‐at‐age wild contrast commonly reported fishing. This finding has implications management fisheries as it trait associated population productivity may be under considerably less short‐term control than currently assumed. Our study, overall, illustrates need comparative approach within species inferences concerning many possible natural anthropogenic

Language: Английский

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Thermal sensitivity of field metabolic rate predicts differential futures for bluefin tuna juveniles across the Atlantic Ocean

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Nov. 27, 2023

Language: Английский

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Overwintering performance of three juvenile temperate estuarine fishes

Journal of Experimental Marine Biology and Ecology, Journal Year: 2025, Volume and Issue: 584, P. 152087 - 152087

Published: Feb. 14, 2025

Language: Английский

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Temperature regulated nutrient sensing and metabolism of amino acids in juvenile turbot (Scophthalmus maximus L.)

Marine Life Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

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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Gills, growth and activity across fishes

Fish and Fisheries, Journal Year: 2023, Volume and Issue: 24(5), P. 730 - 743

Published: May 18, 2023

Abstract Life history theory suggests that maximum size and growth evolve to maximize fitness. In contrast, the Gill Oxygen Limitation Theory (GOLT) in fishes other aquatic, water‐breathing organisms is constrained by body mass‐scaling of gill surface area. Here, we use new data a novel phylogenetic Bayesian multilevel modelling framework test this idea asking three questions posed GOLT regarding size, gills. Across fishes, ask whether area explains (1) variation von Bertalanffy coefficient ( k ) above beyond explained asymptomatic W ∞ ), (2) performance (a trait integrates tradeoff between (3) more compared activity (as approximated caudal fin aspect ratio). Overall, find there only weak relationship among across species. Indeed, does not explain much (especially for those species reach same or performance. Activity five times Our results suggest factor growth, covariates (e.g. activity) are likely important understanding how life traits vary

Language: Английский

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Interwoven processes in fish development: microbial community succession and immune maturation

PeerJ, Journal Year: 2024, Volume and Issue: 12, P. e17051 - e17051

Published: March 27, 2024

Fishes are hosts for many microorganisms that provide them with beneficial effects on growth, immune system development, nutrition and protection against pathogens. In order to avoid spreading of infectious diseases in aquaculture, prevention includes vaccinations routine disinfection eggs equipment, while curative treatments consist the administration antibiotics. Vaccination processes can stress fish require substantial farmer’s investment. Additionally, antibiotics not specific, they may be effective short term, have major drawbacks long term. Indeed, eliminate bacteria which useful host promote raising antibiotic resistance beneficial, commensal but also pathogenic bacterial strains. Numerous publications highlight importance plays diversified microbial community colonizing (i.e., microbiota) health ultimately survival their host. This review targets current knowledge bidirectional communication between microbiota during development. It explores extent this mutualistic relationship: one hand, effect microbes exert ontogeny fishes, other impact critical steps development recruitment succession throughout life. We will first describe its gene expression fishes. Secondly, plurality microbiotas (depending organism, organ, stage) reviewed. Then, a description constant interactions fish’s life stages discussed. Healthy allow maturation modulation inflammation, both contribute homeostasis. Thus, equilibrium is closely linked stability examples from several species more extensively mechanisms occurring zebrafish model because much finely described species, thanks existing mutants precise investigations. conclude how conceptual framework associated research benefit considering relations maturation. More precisely, active tolerance earliest enables sustainable establishment complex healthy adult Establishing balanced host-microbiota interaction avoids triggering deleterious maintains immunological microbiological

Language: Английский

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BOATSv2: New ecological and economic features improve simulations of High Seas catch and effort

Published: May 2, 2024

Abstract. Climate change and industrial fishing have profound effects on marine ecosystems. Numerical models that capture key features of fish biomass dynamics its interaction with can help assess the biogeochemical socio-economic consequences these impacts. However, significant biases do not include many processes known to be relevant. Here we describe an updated version BiOeconomic mArine Trophic Size-spectrum (BOATS) model for global fisheries studies. The incorporates new ecological economic designed ameliorate prior biases. Recent improvements reduction growth rates in iron-limited high-nutrient low-chlorophyll regions, ability simulate management. Novel described here a separation pelagic demersal communities provide expanded representation diversity, spatially variable costs catchability more realistic effort dynamics. We also introduce set observational diagnostics evaluate beyond boundary large Following multi-step parameter selection, BOATSv2 shows comparable performance original coastal ecosystems, accurately simulating catch, effort. revised provides markedly improved High Seas, largely correcting version, including excessive high-sea catches too rapid deepening over time. code is available both historical future scenarios.

Language: Английский

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The role of squid for food web structure and community-level metabolism

Ecological Modelling, Journal Year: 2024, Volume and Issue: 493, P. 110729 - 110729

Published: May 17, 2024

Squid differ from fish by their high growth rate, short life span, and feeding behavior. Their fast strategy is thought to impose a predation pressure on zooplankton, fish, other squid preys, rapid transfer of energy upper trophic levels marine food webs. However, there lack understanding how squid's cycle affects the food-web structure, which needed project biomass across regions under shifting climatic conditions. Here, we examine role community metabolism collecting data somatic incorporating in size- trait-based model. We show that have 5 times higher average rate than fish. Due demands, are constrained pelagic secondary production. The presence these systems associated with reduction total consumer biomass. This decline caused an increase community-level respiration losses squid. Our results indicate might large impact ecosystem structure even at relatively low standing stock Consequently, recent proliferation ecosystems around world likely significant ecological socio-economic impacts.

Language: Английский

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From nutrients to fish: Impacts of mesoscale processes in a global CESM-FEISTY eddying ocean model framework

Progress In Oceanography, Journal Year: 2024, Volume and Issue: 227, P. 103314 - 103314

Published: July 20, 2024

Language: Английский

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