A statistical framework for identifying the relative importance of ecosystem processes and demographic factors on fish recruitment, with application to Atlantic herring (Clupea harengus) in the southern Gulf of St. Lawrence DOI Creative Commons
Jacob Burbank, François Turcotte, François‐Étienne Sylvain

et al.

Canadian Journal of Fisheries and Aquatic Sciences, Journal Year: 2023, Volume and Issue: unknown

Published: June 15, 2023

Despite the importance of recruitment for population dynamics and assessing stock status, limited information exists on relative influence various ecosystem demographic factors marine fishes. We develop a statistical framework to identify influencing fishes facilitate improved predictions recruitment. demonstrate approach by examining southern Gulf St. Lawrence spring- fall-spawning Atlantic herring ( Clupea harengus) stocks, highlighting benefit considering multiple better understand trends. found that different combinations biological physical along with had significant rate herring. The study emphasizes value characteristics when recruitment, provides researchers investigate model other fish populations, supports continued development implementation ecosystem-based fisheries management approaches species, such as

Language: Английский

Persistence of fish populations to longer, more intense, and more frequent mass mortality events DOI Creative Commons
Øystein Langangen, Joël M. Durant

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

Published: March 1, 2024

Abstract Over the last decades, mass mortality events have become increasingly common across taxa with sometimes devastating effects on population biomass. In aquatic environment, fish are sensitive to events, particularly at early life stages that crucial for dynamics. However, it has recently been shown fish, a single event in typically does not lead collapse. Moreover, frequency and intensity of extreme can cause mortality, such as marine heatwaves, increasing. Here, we show increasing may Since drivers diverse, often linked climate change, is challenging predict severity future events. As an alternative, quantify probability collapse depending well duration Based 39 species, increases frequency, intensity, addition, depends key traits natural recruitment variation, density dependence. The presented framework provides quantitative estimates sensitivity species these which paves way potential mitigation actions alleviate adverse impacts harvested populations globe.

Language: Английский

Citations

5
The costs and trade‐offs of optimal foraging in marine fish larvae DOI Creative Commons
Helena Hauss,

Laura Schwabe,

Myron A. Peck

et al.

Journal of Animal Ecology, Journal Year: 2023, Volume and Issue: 92(5), P. 1016 - 1028

Published: March 18, 2023

In a warming world, both the metabolic rates of ectotherm predators and phenology their prey organisms is subject to change. Knowledge on how intrinsic extrinsic factors govern predator-prey interactions essential in order understand environment regulates vital consumers. Controlled experiments, however, simultaneously testing behavioural growth responses larvae fish other different feeding regimes are scarce. Prey size (PS) selection was determined for young Atlantic herring Clupea harengus L. offered 100- 850-μm copepods Acartia tonsa at five concentrations. separate, 4- (13°C) or 7-day (7°C) trials, effect larval foraging behaviour, specific rate (SGR) biochemical condition (RNA:DNA, RD, proxy individual instantaneous growth) tested. Preferred (selected) PS similar all concentrations but increased from 3% 5% predator length with increasing size. At various temperatures, dome-shaped relationships existed between RD (and accordingly SGR). Compensatory changes behaviour (pause strike frequencies) were not adequate maintain positive SGR when available substantially smaller than those preferred by larvae. A physiology-based model predicted that depended more heavily optimal sizes colder versus warmer temperature grow well profitable niche breadth (the range which positive) temperatures. Seemingly subtle match-mismatch dynamics can have large, temperature-dependent consequences likely survival predator. To best knowledge, this first study directly quantify "costs trade-offs" marine

Language: Английский

Citations

11
Predation on Baltic sea yolk-sac herring larvae (Clupea harengus) by the invasive ctenophore Mnemiopsis leidyi DOI
Ina Stoltenberg, Felix Mittermayer, Catriona Clemmesen

et al.

Fisheries Research, Journal Year: 2024, Volume and Issue: 273, P. 106973 - 106973

Published: Feb. 28, 2024

Language: Английский

Citations

4
Effects of zooplankton abundance on the spawning phenology of winter-spawning Downs herring (Clupea harengus) DOI Creative Commons
Paul Marchal, Carolina Giraldo, David G. Johns

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0310388 - e0310388

Published: Feb. 5, 2025

We have investigated phenological shifts in autumn- and winter-spawning Atlantic herring ( Clupea harengus ) the Eastern English Channel Southern North Sea (Downs component), relation to temperature availability of potential zooplanktonic prey Calanus finmarchicus , helgolandicus Temora longicornis ). A two-tiered approach building on monthly distribution commercial landings was developed, which consisted of, (1) calculating timing duration spawning season based estimated deviations from basic harmonic signals and, (2) analysing their inter-annual variations biotic (zooplankton abundance) abiotic (temperature) environmental variables through time series analyses. The start, midpoint ending were increasingly delayed over period 1999–2021, a process correlated with abundance . resulting slightly decreased. Direct effects sea temperatures any metrics could not be clearly evidenced. Different ecological processes likely involved start season. Additional covariates (including size/age composition, factors other than those examined our study) contribute better explanation drift Downs spawning.

Language: Английский

Citations

0
Worldwide Appraisal of Knowledge Gaps in the Space Usage of Small Pelagic Fish: Highlights Across Stock Uncertainties and Research Priorities DOI Creative Commons
Ignacio A. Catalán, Noelle M. Bowlin, M. R. Baker

et al.

Reviews in Fisheries Science & Aquaculture, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 62

Published: Feb. 14, 2025

Understanding the spatial structure of life cycle components small pelagic fish (SPF) stocks is key for deciphering population dynamics and ensuring sustainable management. The extent different stages ecologically relevant processes (e.g., reproduction) temporally dynamic responds to environmental, genetic, demographic constraints. Knowledge gaps on within-stock variability SPF worldwide were identified clupeoid (Clupeidae/Engraulidae). From 3229 Web Science-indexed articles reviewed, data systematically extracted from 299. This information was supplemented with another 105 documents databases official surveys stock assessments. Overall, this review compiled 111 datasets (77 stocks) involving 17 assessed or commercially species across 19 Large Marine Ecosystems (LMEs) 38 coastal ecoregions. Only approximately 40% used in study covered known presumed distribution at least one life-cycle variable: Adults (feeding area, spawning migration, feeding overwintering presence/biomass), juveniles (presence/biomass, nursery area), larvae (larval routes). Despite more extensive some Eastern Boundary Upwelling Systems (EBUS) long-managed stocks, important remain due quality, identity ambiguity, biases. Key could be existing surveys, but there various limitations access spatiotemporal coverage. main consequences are a series priority research/monitoring actions recommended mitigate these improve our ability address stocks.

Language: Английский

Citations

0
VARIABILITY OF LARVAL FISH ASSEMBLAGES UNDER CONTRASTING WINTER ENVIRONMENTAL CONDITIONS IN THE NORTHWESTERN MEDITERRANEAN SEA DOI
Vanesa Raya, M. Pilar Olivar, Jordi Salat

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 205, P. 107025 - 107025

Published: Feb. 21, 2025

Language: Английский

Citations

0
Fisher awareness is crucial for compliance with regulatory frameworks concerning endangered marine species DOI
Márcio Luiz Vargas Barbosa-Filho, Gabriel Barros Gonçalves de Souza, Sérgio de Faria Lopes

et al.

Marine Policy, Journal Year: 2025, Volume and Issue: 177, P. 106688 - 106688

Published: March 27, 2025

Language: Английский

Citations

0
Seasonal variation of autochthonous and allochthonous carbon sources for the first levels of the Beagle Channel food web DOI
Daniel O. Bruno,

Luciana Riccialdelli,

M. Eduardo

et al.

Journal of Marine Systems, Journal Year: 2023, Volume and Issue: 239, P. 103859 - 103859

Published: Jan. 20, 2023

Language: Английский

Citations

10
Coldwater, stenothermic fish seem bound to suffer under the spectre of future warming DOI Creative Commons

Barnaby John Roberts,

Christoph Chucholl, Alexander Brinker

et al.

Journal of Great Lakes Research, Journal Year: 2024, Volume and Issue: 50(3), P. 102351 - 102351

Published: May 1, 2024

Climate change has the potential to impact lacustrine fish populations by affecting both their physiologies and phenologies. Coldwater, stenothermic fishes that spawn in winter may be at highest risk of being negatively impacted predicted future climate warming. To investigate this subject, we tested temperature on embryonic larval stages coldwater, salmonid whitefishes (coregonines). Embryos two coregonine species from Upper Lake Constance (a large, deep perialpine lake bordering Austria, Germany Switzerland) were incubated three temperatures approximating historic water temperatures. After hatching, larvae all incubation treatments transferred rearing treatments. Hatching times advanced higher temperatures, whilst mortality performance responses generally negative, suggesting warming will reduce recruitment Constance. The varied specific sensitivity temperature. Additionally, found affected up a half months after hatching. Using our data hatching times, infer could advance phenologies weeks end 21st century.

Language: Английский

Citations

3
Local reflects global: Life stage‐dependent changes in the phenology of coastal habitat use by North Sea herring DOI Creative Commons
Mark Rademaker, Myron A. Peck, Anieke van Leeuwen

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(4)

Published: April 1, 2024

Abstract Climate warming is affecting the suitability and utilization of coastal habitats by marine fishes around world. Phenological changes are an important indicator population responses to climate‐induced but remain difficult detect in fish populations. The design large‐scale monitoring surveys does not allow fine‐grained temporal inference responses, while ecologically economically species groups such as small pelagic particularly sensitive resolution. Here, we use longest, highest resolution time series composition abundance northern Europe possible phenological shifts North Sea herring. We a clear forward shift phenology nearshore habitat juvenile This might be linked water temperatures Sea. next assessed robustness effects found with respect design. find that reducing our data reflect typical larger makes it drastically reduces effect sizes environmental covariates seawater temperature. Our study therefore shows how local, long‐term, high‐resolution catches essential understand general climate define ecological indicators system‐level changes.

Language: Английский

Citations

2