Fish and Fisheries最新文献

{"title":"Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment","authors":"Sean C. Godwin,&nbsp;Emma M. Atkinson,&nbsp;Jamieson B. Atkinson,&nbsp;Mackenzie C. Bartlett,&nbsp;William D. P. Duguid,&nbsp;Marc Trudel,&nbsp;Andrew W. Bateman","doi":"10.1111/faf.70039","DOIUrl":"10.1111/faf.70039","url":null,"abstract":"<p>Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (<i>Oncorhynchus</i> spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range. Although many declines have been linked to poor marine survival, the early marine life phase of salmon has historically been difficult to study because of challenges in capturing juvenile salmon once they leave freshwater. Recent advancements in capture methods, refined over decades of research, have greatly expanded our understanding of juvenile Pacific salmon life history. Here, we synthesise and review the literature on the five main capture techniques for juvenile Pacific salmon in the marine environment: beach seine, miniature purse seine, conventional purse seine, microtroll, and rope trawl. We compare gear, selectivity, cost, and fish welfare considerations across methods. Along with demonstrated utility in Pacific salmon research, these methods also have broad—and in some cases unexplored—applicability for studying other salmonids and nearshore marine fishes globally, including invasive populations and Atlantic salmon.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"160-178"},"PeriodicalIF":6.1,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145893694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associations of Commercial Fisheries and Cold-Water Corals and Sponges","authors":"Jennifer Coyle Selgrath,&nbsp;Elizabeth Duncan,&nbsp;Tom Laidig","doi":"10.1111/faf.70036","DOIUrl":"10.1111/faf.70036","url":null,"abstract":"<p>The growing threats to deep-sea ecosystems (e.g., offshore wind, seabed mining, aquaculture) have the potential to damage these understudied systems, and to impact the fisheries that they support. However, to date there has not been a uniform assessment identifying which commercially landed species are associated with the cold-water corals and other structure-forming invertebrates (SFI) found in the deep sea. We conducted a metanalysis to identify the species of fish and invertebrates landed by commercial fisheries in California, USA (2010–2024), and evaluate their potential associations with SFI. Captured species are assigned to Landing Categories, which range in specificity from individual species to broad taxonomic groups. We developed a referenced list of observations documenting associations, and used three metrics to identify which of the 313 Landing Categories are (or are not) associated with SFI: (1) Adjacent: species observed within one body length of SFI (target fish) or touching SFI (target invertebrates); (2) General proximity: species observed within the general area of SFI or based on modelling; (3) Habitat: species' depth ranges and habitat requirements suggest associations. Approximately 30% of Landing Categories were associated with cold-water SFI, but the specific percentage varied across metrics (Adjacent: 23%; General proximity: 27%; Habitat: 36%). Commercially targeted fish were more likely to be associated with SFI than invertebrates, but many invertebrates had undocumented life histories and/or non-specific Landing Categories. This study provides a step toward understanding the importance of SFI for commercial fisheries, and demonstrates the broad co-occurrence between commercially landed marine species and living deep-water habitats.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"116-129"},"PeriodicalIF":6.1,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145893695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Navigating Narratives: An Exploratory Scoping Review on the Framing of the Illegal, Unreported and Unregulated Fishing Research","authors":"Brittany Bartlett,&nbsp;Rodrigo Oyanedel,&nbsp;Hollie Booth,&nbsp;Stefanía Ásta Karlsdóttir,&nbsp;Amaël Dupaix,&nbsp;Ariel Greiner,&nbsp;M. Isidora Ávila-Thieme,&nbsp;Juan Andrés Silva,&nbsp;Shathuki Perera,&nbsp;Mayuri Chopra,&nbsp;E. J. Milner-Gulland","doi":"10.1111/faf.70047","DOIUrl":"10.1111/faf.70047","url":null,"abstract":"<p>Sustainable fisheries are often undermined by illegal, unreported and, in some cases, unregulated fishing (collectively, IUU fishing). As such, it is critical to ensure that current research effectively informs practical fisheries management interventions. We conducted an exploratory scoping review of 509 scholarly articles to assess general trends related to how IUU fishing is framed and distributed in the literature, identifying prevailing narratives that may influence governance. Research on the topic of IUU fishing has increased over time, although geographic distributions in terms of study locations and lead authorship do not necessarily align with global hotspots and priorities. While most location-specific studies include at least one author affiliated with an institution from the region being studied, a bias remains towards first authors from high-income countries. Moreover, while there is a justified focus on the Western Pacific Ocean, other vulnerable regions, such as the West Indian Ocean, remain comparatively underrepresented. Contrary to the assumption of a social science deficit in marine conservation, over half of the articles categorised applied a primarily social science lens; however, coverage from the behavioural sciences was limited. A subset analysis revealed a strong emphasis on large-scale illegal fishing, with frequent conceptual blurring across fishery scales and IUU components. These patterns suggest a high-level and often ambiguous framing of IUU fishing, which may risk oversimplifying complex issues and diluting context-specific nuances. We recommend a shift towards more grounded and solutions-oriented research, with more focus on unreported and unregulated fishing, particularly in small-scale contexts and underrepresented locations.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"179-195"},"PeriodicalIF":6.1,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145807669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decoding the Genetic Resources of Common Carp (Cyprinus carpio) Across Three Habitats in China: From Subspecies Patterns to Genetic Status","authors":"Xumeng He,&nbsp;Yang Gao,&nbsp;Jiamin Sun,&nbsp;Qigen Liu,&nbsp;Wenjing Hu","doi":"10.1111/faf.70049","DOIUrl":"10.1111/faf.70049","url":null,"abstract":"<div>\u0000 \u0000 <p>As one of the earliest domesticated aquatic species, the common carp (<i>Cyprinus carpio</i>) has developed a dynamic and complex genetic landscape globally due to subspecies divergence, variety introductions and insufficient genetic management. China, which holds the world's largest diversity of both wild and domesticated carp populations, also faces substantial challenges in managing subspecies composition and genetic resources. In this study, 952 individuals from 25 populations across wild river systems, paddy fields and ponds were sampled, and mitochondrial DNA markers (<i>cytochrome b</i> and control region) were used to redefine subspecies distributions from a habitat-based perspective and to clarify genetic patterns within and among habitats. Our results show that <i>C. c. rubrofuscus</i> has become the dominant subspecies across all three habitat types, whereas <i>C. c. carpio</i> is mainly preserved in wild river populations in northeastern China. Pond populations retain the highest number of pure subspecies (<i>C. c. rubrofuscus</i> and <i>C. c. haematopterus</i>). Wild populations exhibited the highest genetic diversity and relatively low differentiation, while pond populations had the fewest haplotypes and the strongest genetic divergence, reflecting long-term artificial selection. Paddy-field populations displayed heterogeneous patterns: Qingtian, Heili and Qingyuan paddy-field carp were highly isolated with low diversity, whereas others showed frequent gene flow with nearby wild carp. These findings highlight the need for habitat-specific genetic management strategies to maintain genetic diversity and safeguard native carp resources.</p>\u0000 </div>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"213-226"},"PeriodicalIF":6.1,"publicationDate":"2025-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chasing Fish: 130 Years of Innovation, Displacement and Depletion in Scottish Fisheries","authors":"Zoe F. J. Heard,&nbsp;Callum M. Roberts,&nbsp;Ruth H. Thurstan","doi":"10.1111/faf.70050","DOIUrl":"10.1111/faf.70050","url":null,"abstract":"<p>Rebuilding the depleted fisheries of the 21st century requires an understanding of past drivers of their decline. Despite Scotland's central role in the commercial exploitation of North Sea fisheries for over a century, associations between technological innovations, regulatory introductions and fishery landings have not previously been quantified. Here we use data from annual Scottish Government fisheries reports (1890–2020) to examine these associations. Traditional passive fishing gears were displaced by mobile gears in distinct phases across the demersal, pelagic and shellfish sectors, with increases in landings recorded for variable periods. Demersal line fishers were displaced by trawlers from 1899, pelagic drift netters were superseded by pelagic trawlers and purse-seiners from 1963, and shellfish creels were succeeded by trawlers targeting <i>Nephrops norvegicus</i> from 1964. The widespread adoption of steam propulsion (late 19th/early 20th century), motor propulsion and ancillary technologies, for example, echosounders (mid-20th century) further increased the power of fishing fleets. The sequential transition from passive to active and more environmentally damaging gears across all major fishery sectors (demersal, pelagic and shellfish) respectively indicates intensification of fishing effort for lower trophic levels, with increasing impacts upon marine ecosystems. Technological progress was facilitated by governing bodies over the 20th century through loans and subsidies. Efforts to curtail fishing effort were then reactive to declines in fish stocks from the latter-20th century. This century-long perspective demonstrates how technological innovations can swiftly be adopted with subsequent adverse ecological consequences, and highlights the importance of pre-emptively managing innovations to enhance fisheries sustainability, rather than drive declines.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"227-247"},"PeriodicalIF":6.1,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145765425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"‘Building the (Im)perfect Beast’: Strategies for Identifying Appropriate Spatial Stock Assessment Model Complexity From an International, Blinded High-Resolution Simulation Experiment","authors":"Aaron M. Berger,&nbsp;Daniel R. Goethel,&nbsp;Simon D. Hoyle,&nbsp;Patrick Lynch,&nbsp;Caren Barceló,&nbsp;Alistar Dunn,&nbsp;Brian J. Langseth,&nbsp;Carolina Minte-Vera,&nbsp;Jemery Day,&nbsp;Haikun Xu,&nbsp;Francisco Izquierdo,&nbsp;Dan Fu,&nbsp;Nicholas D. Ducharme-Barth,&nbsp;Mathew Vincent,&nbsp;Arnaud Grüss,&nbsp;Jonathan J. Deroba,&nbsp;Giancarlo M. Correa,&nbsp;Jeremy McKenzie,&nbsp;Will Butler,&nbsp;Jie Cao,&nbsp;Craig Marsh,&nbsp;Teresa A'mar,&nbsp;Valerio Bartolino,&nbsp;Massimiliano Cardinale,&nbsp;Claudio Castillo-Jordan,&nbsp;Bjarki Þór Elvarsson,&nbsp;John Hampton,&nbsp;Andrea Havron,&nbsp;Pamela Mace,&nbsp;Arni Magnusson,&nbsp;Mark Maunder,&nbsp;Richard Methot,&nbsp;Sophie Mormede,&nbsp;Maria Grazia Pennino,&nbsp;Alfonso Perez-Rodriguez,&nbsp;Marta Cousido-Rocha,&nbsp;Thomas Teears,&nbsp;Agurtzane Urtizberea","doi":"10.1111/faf.70048","DOIUrl":"10.1111/faf.70048","url":null,"abstract":"<p>Despite their potential to inform sustainable regional harvest and climate-resilient fisheries management, spatial stock assessment models remain underused for management advice. To identify barriers that inhibit broader use of these methods, we conducted a blinded international simulation experiment mimicking real-world stock assessment development when confronting spatial complexity. Seven analyst teams built spatially aggregated and spatially explicit assessment models using data simulated from high-resolution operating models based on Indian Ocean yellowfin tuna and Ross Sea Antarctic toothfish dynamics. Each team documented how assessment software platform, data analyses, model building approach, and diagnostics influenced model complexity and realism. A consensus emerged on key assessment building approaches: (1) conduct high-resolution data analyses to identify appropriate spatial structure; (2) start with simplified models and incrementally add complexity; (3) iteratively evaluate diagnostics to determine necessary spatial complexity; and (4) maintain models with different spatial structures to aid interpretation. The experiment also revealed several valuable insights for parameterising assessments, including consideration of data pre-processing with spatiotemporal models to better inform data-sparse regions; regression trees to identify fleet and spatial structure; trade-offs in complexity between productivity and movement dynamics to achieve tractable and stable model structures; and ensemble modelling approaches to address structural uncertainty. Our findings demonstrate that international collaborations and simulation experiments are crucial for addressing challenges in implementing spatial stock assessments and for evaluating whether their added complexity is justified given management objectives. Broader collaborations are encouraged to foster innovation in fisheries management and to help recognise the practical trade-offs between model parsimony and complexity.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"196-212"},"PeriodicalIF":6.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145703835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Reverence for Rivers: Imagining an Ethic for Running Waters. By Kurt D. Fausch, Corvallis: Oregon State University Press, 2025. 278 pp. ISBN: 978-1-96-264534-8","authors":"Samuel Shephard","doi":"10.1111/faf.70040","DOIUrl":"10.1111/faf.70040","url":null,"abstract":"","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"412-414"},"PeriodicalIF":6.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145703834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Century-Scale Changes in the Feeding Patterns of Demersal Fish Species in the Western North Sea","authors":"Georgina L. Hunt,&nbsp;Nicholas V. C. Polunin,&nbsp;Georg H. Engelhard,&nbsp;Ben D. Wigham,&nbsp;John K. Pinnegar","doi":"10.1111/faf.70035","DOIUrl":"10.1111/faf.70035","url":null,"abstract":"<p>Understanding the extent and magnitude of change in marine food webs requires historical data that predates modern monitoring efforts. Such information can provide invaluable insights into the longer-term impacts of altered trophic interactions, yet it is rarely incorporated into marine policy frameworks. Using multiple stomach records spanning over a century, we investigated long-term changes in the diet composition of six demersal fish species in the western North Sea. Plaice, dab and haddock exhibited marked dietary shifts from larger, more sessile bivalves in the early 20th century to an increase in the prevalence of shorter-lived, more opportunistic prey (polychaetes and echinoderms) in the latter part of the century. Cod, whiting, and grey gurnard exhibited variable diets, but some prey groups (amphipods and echinoderms) were consistently more important in particular decades. Compared to the 1900s, sandeels became an increasingly dominant dietary component for nearly all predators in later decades. These findings likely reflect ‘bottom-up’ effects of altered benthic prey communities caused by the intensification of trawling, eutrophication and climatic changes, especially in the latter part of the 20th century. Our study highlights the value of using alternative historical data in detecting broad-scale change over extended timescales, and provides additional evidence that can guide relevant policies aimed at restoring the functional integrity of marine food webs.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"99-115"},"PeriodicalIF":6.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145651181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fishing for Anglers in a Sea of Data: Using Mobility Data to Identify and Track Marine Recreational Fishing","authors":"Mona Ahmadiani,&nbsp;Richard T. Woodward","doi":"10.1111/faf.70033","DOIUrl":"10.1111/faf.70033","url":null,"abstract":"<p>Analysing recreational anglers in marine waters presents several challenges. First, while there are well-established approaches to estimate fishing effort, they are only as good as the coverage of the underlying data, which invariably has blind spots that can bias estimates. Additionally, tracking anglers' movements over time and their fishing locations in the open water is nearly impossible. This paper demonstrates the potential value of passively collected mobility data, GPS coordinates with timestamps from smartphones, for the analysis of marine recreational fishing. Using a classification process that includes supervised machine learning algorithms, we identify over 16,000 recreational fishing trips in the Gulf of Mexico from 2019 to 2022. We then categorise the identified trips into two groups: ‘station trips’, which are from places where creel surveys are conducted, and ‘non-station trips’, which originate from locations not covered by creel data. We find that about 75% of all trips in the Gulf are station trips, though there is substantial variation across states. We examine differences in the on-water behaviour of the two groups and study the spatial and temporal nature of these fishing trips. For validation of our proposed method, we compare the spatial and temporal variation of our identified trips based on mobility data with administrative data from Texas, Alabama, and Mississippi collected by government agencies. Correlations range from 0.63 to 0.94, providing strong evidence that our algorithm yields valid measures of recreational fishing effort, which can inform marine resource managers where such data are not available.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 2","pages":"81-98"},"PeriodicalIF":6.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145651182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the Relevance of Democratic Decline for Marine Fisheries","authors":"Brian Pentz,&nbsp;Philip A. Loring","doi":"10.1111/faf.70034","DOIUrl":"10.1111/faf.70034","url":null,"abstract":"<p>Democratic regression is occurring around the world at precisely the time when progress on sustainable development and biodiversity conservation has become essential. To understand the extent to which democratic regression overlaps with (and therefore might be an issue for) marine fisheries, we examine the democracy trends of (i) key fishing states and (ii) key intergovernmental institutions. To do so, we use landings statistics published by the FAO and democracy measurements published by the Economist Intelligence Unit. Our findings suggest that democratic regression is indeed occurring in many critical marine fisheries actors and institutions and therefore represents an important challenge requiring close attention from resource managers, resource users, environmental governance researchers, and stakeholder and rightsholder groups. We outline a series of research themes and questions whose answers could strengthen the understanding of the nature and implications of democratic regression for marine fisheries.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 1","pages":"68-80"},"PeriodicalIF":6.1,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145599008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}