Revealing the adaptation strategies of pelagic fleets in the Bay of Biscay by combining fishery data and fishers’ knowledge DOI Creative Commons
Gabriel Lahellec, Fabienne Daurès, Sigrid Lehuta

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Abstract The French pelagic fishery in the Bay of Biscay is currently facing new challenges. To anticipate and support future adaptations fishers’ strategies, we proposed to scrutinize past behaviours determine driving factors their using a combination quantitative qualitative analysis. Annual strategies deployed by fleet between 2010 2018 were identified through fishing data. Individual sequences used vessels then served as basis for definition segmentation, revealing behavioural patterns bridges strategies. Fishers from two segments interviewed identify underlying decisions at four different time scales. surveyed felt control both long-term (pluri-annual) short-term (daily) decisions. Social aspects personal preferences found be preponderant these On contrary, seasonal annual activities perceived being dictated market opportunities ecological cycles. We showed that fishers forced toward greater dependence on sardine regulatory constraints lack other species. Our study draws perspective combining historical data analysis with fisher’s experiential knowledge understand behaviours.

Language: Английский

Climate Change Influences via Species Distribution Shifts and Century‐Scale Warming in an End‐To‐End California Current Ecosystem Model DOI
Owen R. Liu, Isaac C. Kaplan, Pierre‐Yves Hernvann

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 1, 2025

ABSTRACT Climate change can impact marine ecosystems through many biological and ecological processes. Ecosystem models are one tool that be used to simulate how the complex impacts of climate may manifest in a warming world. In this study, we an end‐to‐end Atlantis ecosystem model compare contrast effects climate‐driven species redistribution projected temperature from three separate on key commercial importance California Current Ecosystem. Adopting scenario analysis approach, measure differences biomass, abundance, weight at age pelagic demersal among six simulations for years 2013–2100 tracked implications those changes spatially defined fishing fleets. The varied their use forced distribution shifts, time‐varying projections ocean warming, or both. general, abundance biomass coastal like Pacific sardine ( Sardinops sagax ) northern anchovy Engraulis mordax were more sensitive change, while groups Dover sole Microstomus pacificus experienced smaller due counteracting spatial metabolic warming. Climate‐driven shifts resulting food web interactions influential than end‐of‐century patterns. Spatial fisheries catch did not always align with targeted species. This mismatch is likely into out areas emphasizes explicit understanding both dynamics. We illuminate important pathways which acts context end discussion potential management future directions research using models.

Language: Английский

Citations

2
A collaborative climate vulnerability assessment of California marine fishery species DOI Creative Commons
Timothy H. Frawley, Mikaela Provost, Lyall Bellquist

et al.

PLOS Climate, Journal Year: 2025, Volume and Issue: 4(2), P. e0000574 - e0000574

Published: Feb. 12, 2025

Climate change and the associated shifts in species distributions ecosystem functioning pose a significant challenge to sustainability of marine fisheries human communities dependent upon them. In California Current, as recent, rapid, widespread changes have been observed across regional ecosystems, there is an urgent need develop implement adaptive climate-ready management strategies. Vulnerability Assessments (CVA) proposed first-line approach towards allocating limited resources identifying those stocks most further research and/or intervention. Here we perform CVA for 34 state-managed fish invertebrate species, following methodology previously developed applied federally managed species. We found Pacific herring, warty sea cucumber, spiny lobster be three expected sensitive climate impacts with halibut, bonito, hagfish least sensitive. When considering sensitivity combination environmental exposure both Near (2030–2060) Far (2070–2100) Exposure futures, red abalone was classified Very High vulnerability periods. Dungeness herring shifted from Pismo clam pink shrimp Moderate conditions progressed. providing relative holistic comparison degree which fishery are likely impacted progresses, our results can help inform strategic planning initiatives identify where gaps scientific knowledge capacity may greatest risk California’s resource economies coastal communities.

Language: Английский

Citations

1
Self-governance mediates small-scale fishing strategies, vulnerability and adaptive response DOI Creative Commons
Timothy H. Frawley, Blanca González‐Mon, Mateja Nenadović

et al.

Global Environmental Change, Journal Year: 2024, Volume and Issue: 84, P. 102805 - 102805

Published: Jan. 1, 2024

As global change accelerates, natural resource-dependent communities must respond and adapt. Small-scale fisheries, essential for coastal livelihoods food security, are considered among the most vulnerable of these coupled social-ecological systems. While previous studies have examined vulnerability adaptation in fisheries at individual, household, community level, scales organization inconsistent with many legal regulatory frameworks that function practice to mediate behavior, decision-making, adaptation. Here, we use cooperative- privately-owned fishing enterprises Northwest Mexico as a case study examine how different forms marine self-governance experience climate shocks. Leveraging network methods changes participation during recent period pronounced regional oceanographic change, our analysis suggests that: 1) SSF (and strategies harvest portfolios which they associated) help determine impacts response environmental change; 2) there may be important trade-offs between short-term responses prevent or mitigate lost revenue long-term vulnerability. In particular large cooperatives, predicted highly on basis theoretic metrics, exceeded expectations (maintaining increasing resource revenues) while demonstrating degree path dependency increase sensitivity undermine resilience progresses. providing an empirical evaluation arrangements characterized by group sizes, access regimes levels cooperation system perturbation, aim advance common pool theory offering targeted guidance development more nuanced equitable policies.

Language: Английский

Citations

5
Marine Heatwaves and Climate‐Driven Warming Impact Availability of Sardine Subpopulations to Northeast Pacific Fishing Ports DOI Creative Commons
Barbara Muhling, Juan P. Zwolinski,

Peter T. Kuriyama

et al.

Fisheries Oceanography, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

ABSTRACT Changing ocean conditions are leading to spatial redistribution of many marine species, including those that support fisheries. A combination gradual climate trends and shorter‐lived extreme events, such as heatwaves, can change the availability species or stocks fishing ports, impacting communities challenging fisheries management frameworks. Pacific sardine ( Sardinops sagax ) in California Current System currently considered two subpopulations for purposes. They separated from each other using oceanographic conditions, based on assumption subpopulation is associated with different habitats geographic areas. However, heatwaves lead increasingly novel environmental region, habitat‐based assignments may become impractical unrealistic. In this study, we use generalized additive models define sea surface temperature chlorophyll occurrence multiple life stages fishery‐independent surveys conducted System. We then show how distribution across putative be influenced by both heatwaves. Our results highlight potential impacts changing near major landing ports. During recent habitat northern became less available southern trend projected continue through end 21st century. Future shifts challenge practicality separation introduce more uncertainty into

Language: Английский

Citations

0
Effects of anthropogenic noise on marine mammal abundances informed by mixed methods DOI Creative Commons

Raymond J. O’Connor,

Nicole M. Ardoin, Giulio A. De Leo

et al.

npj Ocean Sustainability, Journal Year: 2025, Volume and Issue: 4(1)

Published: April 5, 2025

Language: Английский

Citations

0
Socio-economic impacts and responses of the fishing industry and fishery managers to changes in small pelagic fish distribution and abundance DOI Creative Commons

Felipe J. Quezada-Escalona,

Désirée Tommasi, Isaac C. Kaplan

et al.

Reviews in Fish Biology and Fisheries, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Language: Английский

Citations

0
Small pelagic fish: new frontiers in science and sustainable management DOI
Christopher N. Rooper, Jennifer L. Boldt, Andrés Uriarte

et al.

Canadian Journal of Fisheries and Aquatic Sciences, Journal Year: 2024, Volume and Issue: 81(8), P. 984 - 989

Published: Aug. 1, 2024

Small pelagic fishes occupy an important trophic role in every global aquatic ecosystem, and many species are heavily exploited by fisheries, including some of the largest most valuable capture fisheries world. In November 2022, a symposium on small fish titled “ Pelagic Fish: New Frontiers Science Sustainable Management” was cohosted PICES, ICES, FAO Lisbon, Portugal. This special issue contains collection research manuscripts that explore approaches currently being used developed to assess manage fishes. particular, this covers topics novel surveying fishes, incorporating environmental covariates into management, management strategy evaluation, aspects economics fisheries. The conclusions highlight importance new seek enhance surveys ecosystem monitoring, incorporate information predict potential impacts changes outcomes for economies communities rely sustainable populations

Language: Английский

Citations

2
Revealing the adaptation strategies of pelagic fleets in the Bay of Biscay by combining fishery data and fishers’ knowledge DOI Creative Commons
Gabriel Lahellec, Fabienne Daurès, Sigrid Lehuta

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Abstract The French pelagic fishery in the Bay of Biscay is currently facing new challenges. To anticipate and support future adaptations fishers’ strategies, we proposed to scrutinize past behaviours determine driving factors their using a combination quantitative qualitative analysis. Annual strategies deployed by fleet between 2010 2018 were identified through fishing data. Individual sequences used vessels then served as basis for definition segmentation, revealing behavioural patterns bridges strategies. Fishers from two segments interviewed identify underlying decisions at four different time scales. surveyed felt control both long-term (pluri-annual) short-term (daily) decisions. Social aspects personal preferences found be preponderant these On contrary, seasonal annual activities perceived being dictated market opportunities ecological cycles. We showed that fishers forced toward greater dependence on sardine regulatory constraints lack other species. Our study draws perspective combining historical data analysis with fisher’s experiential knowledge understand behaviours.

Language: Английский

Citations

0