Fish and Fisheries最新文献

{"title":"Editorial: Special Issue in Honour of Tony Pitcher and Paul Hart","authors":"Mike Webster, Katja Enberg, Anna Kuparinen","doi":"10.1111/faf.70115","DOIUrl":"10.1111/faf.70115","url":null,"abstract":"","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1307-1308"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149151809","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":"Statistical Power and the Effects of Old, Wise and Large Fish","authors":"Øystein Langangen,&nbsp;Nicolas Dupont,&nbsp;Jan Heuschele,&nbsp;Joël M. Durant","doi":"10.1111/faf.70113","DOIUrl":"10.1111/faf.70113","url":null,"abstract":"<div>\u0000 \u0000 <p>Currently, a major concern for fish populations is their declining resilience to climate events, reduced individual sizes and productivity and increased instability. Population dynamics of fish are often dominated by recruitment, i.e., the number of young fish entering the population. The contribution of old and large female fish (often denoted BOFFs) to recruitment is expected to be disproportionately large; however, the importance is still debated. There is currently a move to expand quantitative knowledge of the effects of BOFFs on recruitment to better cover the thousands of fish species and populations worldwide. Here, we show, using simulations, that time-series length and uncertainty often reduce the statistical power to levels where the effects are no longer detectable. We suggest system-specific methods evaluation to reduce the risks of erroneous conclusions.</p>\u0000 </div>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1290-1296"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148809898","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":"Relationships Between Oceanic Primary Production, Human Habitation and Variation in the Life-History Traits of Coral Reef Fishes Across the Northern Line Islands","authors":"Brian J. Zgliczynski,&nbsp;Lindsay T. Caldwell,&nbsp;Gareth J. Williams,&nbsp;Scott L. Hamilton,&nbsp;Chelsea L. Wood,&nbsp;Alan M. Friedlander,&nbsp;Anela K. Akiona,&nbsp;Yoan Eynaud,&nbsp;Edward E. DeMartini,&nbsp;Stuart A. Sandin","doi":"10.1111/faf.70116","DOIUrl":"10.1111/faf.70116","url":null,"abstract":"<p>Biophysical processes associated with large-scale nearshore oceanographic upwelling can influence coral reef communities by increasing the delivery of nutrient subsidies and food resources to reefs. However, these processes occur alongside anthropogenic activities that may alter ecological patterns across coral reef ecosystems. We examined relationships among nearshore oceanic primary production, human habitation, and the abundance, biomass, body condition and life-history traits of eight common coral reef fish species across six islands in the Northern Line Islands, central Pacific Ocean. Variation in oceanic primary production and habitation status was associated with differences in abundance, biomass, body condition and life-history traits (i.e., growth rates, maximum size and longevity) of key coral reef fishes. These relationships varied among species and islands, with some taxa exhibiting more pronounced relationships with productivity and human habitation than others. Among uninhabited islands, several grazer-detritivore species exhibited life-history patterns that were consistent with variation in oceanic primary production, whereas these relationships between productivity and life-history traits were less apparent among inhabited islands. In contrast, piscivore-invertivore species generally exhibited stronger differences associated with human habitation status. These findings suggest that local human impacts may influence life-history traits of reef fishes even when strong gradients in oceanic primary production are present. Although the mechanisms underlying these patterns were not evaluated directly, our results highlight the role of biophysical processes in shaping coral reef fish assemblages and suggest that human activities may alter ecological relationships linking environmental conditions and life-history traits across tropical reef ecosystems.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1269-1282"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148958002","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":"Behavioural Diversity of Fishes: Concepts, Drivers and Its Role in Conservation and Management","authors":"Marie Prchalová,&nbsp;Robert Arlinghaus,&nbsp;Samuel Westrelin,&nbsp;Ivan Jarić,&nbsp;Michael G. Bertram,&nbsp;Josep Alós,&nbsp;Henrik Baktoft,&nbsp;Jack A. Brand,&nbsp;Tomas Brodin,&nbsp;Adolfo Cordero-Rivera,&nbsp;Carlina Feldmann,&nbsp;Ryo Futamura,&nbsp;Stefan Hont,&nbsp;Pascal Klamser,&nbsp;Cecilie Iden Nilsen,&nbsp;Johann Mourier,&nbsp;Karl Øystein Gjelland,&nbsp;Esben Moland Olsen,&nbsp;Polona Pengal,&nbsp;Rubén Rabaneda-Bueno,&nbsp;Milan Říha,&nbsp;Theresa Rueger,&nbsp;Holger Schielzeth,&nbsp;Marco Signaroli,&nbsp;Marija Smederevac-Lalić,&nbsp;Christopher T. Monk","doi":"10.1111/faf.70107","DOIUrl":"10.1111/faf.70107","url":null,"abstract":"<p>Human activity has altered nearly all ecosystems on Earth, contributing to substantial biodiversity loss across taxonomic, genetic and functional dimensions, from the intraspecific to the ecosystem scale. Yet some components of biodiversity remain hidden or underappreciated, including behavioural diversity. Behaviour is often among the earliest whole-organism responses to environmental change, and diversity in behaviour can occur within individuals, among individuals, among populations and across communities and ecosystems. This variation may influence growth, survival, reproduction, ecological interactions and responses to anthropogenic pressures, although its effects on population stability and resilience are likely context-, scale- and component-dependent. In this review, we examine behavioural diversity in fishes, defined here as variation in behavioural traits across levels of biological organisation, from individuals to ecosystems. Our review has two complementary aims. First, we provide a conceptual overview of behavioural diversity, clarify how it differs from related constructs such as personality, plasticity, and behavioural syndromes, and summarise the evolutionary, ontogenetic, ecological, stochastic and anthropogenic processes that generate or erode it. Second, we evaluate why behavioural diversity matters for fish ecology, fisheries management, aquaculture, restoration and conservation. We conclude by identifying key research needs, including improved quantification, stronger empirical links between behavioural diversity and ecological outcomes, and the development of management approaches sensitive to behavioural diversity. More explicit consideration of behavioural diversity should improve our ability to predict fish behavioural diversity responses and to design conservation and management measures that account for variation rather than only average behavioural responses.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1245-1268"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877358","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":"Lack of Capacity: The Not-So-Hidden Factor Undermining Fisheries Governance","authors":"Haas Bianca,&nbsp;Aqorau Transform,&nbsp;Lennan Mitchell","doi":"10.1111/faf.70114","DOIUrl":"10.1111/faf.70114","url":null,"abstract":"<p>The demand for marine resources is increasing, and an increasing number of fish stocks are fully or overexploited. To turn this downward projection around, states need to strengthen the effectiveness, equity and implementation of fisheries management measures. One important component that often determines the performance of fisheries management is the capacity of the participating parties. Despite the increased global awareness regarding the need for enhanced capacity support, many coastal developing states still lack the skills and tools to implement conservation and management measures effectively. In this paper, we highlight some of the current issues in capacity building, looking at the individual, national and regional levels. We argue that capacity is a core determinant of equity and effectiveness in fisheries governance. Furthermore, we describe the potential of complementary mechanisms to provide capacity support. Specifically, we focus on the climate change regime and the Agreement on Biodiversity Beyond National Jurisdiction. Unless coastal developing states have the sustained scientific, legal, technical, institutional and financial capacity to participate meaningfully in regional fisheries management organisations, the adoption of conservation and management measures will not necessarily translate into effective or equitable outcomes.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1297-1306"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877357","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":"Inferring the Number of Spawning Events From Young-of-the-Year Genomic Samples and Otolith-Derived Birth Dates: A Richness-Estimator Perspective","authors":"Tetsuya Akita,&nbsp;Yohei Tsukahara,&nbsp;Hiroshige Tanaka","doi":"10.1111/faf.70112","DOIUrl":"10.1111/faf.70112","url":null,"abstract":"<p>Estimating the number of spawning events per female is key to understanding reproductive output in batch-spawning species, yet direct observation is often infeasible in the wild. Recent advances in genetic kinship inference enable the identification of maternal half siblings from young-of-the-year genomic samples, while otolith-based age determination provides reconstruction of offspring birth dates. Here we develop an offspring-based framework for estimating the number of clutches produced by individual females by integrating sibling structure inferred from genomic data with otolith-derived birth-date information, obtained from a subset of offspring within each maternal sibling group. By recasting clutch identification as a richness estimation problem, we apply the Chao1 estimator to infer the total number of spawning events from incomplete offspring samples. Using simulation experiments, we evaluate how sampling effort and heterogeneity in clutch size influence clutch detection and estimation. Under uniform clutch-size distributions, modest samples per maternal family (10–20 offspring) accurately estimate total clutch number, substantially outperforming naive counts of observed birth-date classes by recovering information from rare or unobserved spawning events. In contrast, skewed or multimodal clutch-size distributions lead to underestimation at low sample sizes, indicating that uneven reproductive output increases the sampling effort required for reliable inference. Our results demonstrate how offspring genomic data and otolith-derived birth dates can be jointly leveraged to reconstruct individual spawning histories under realistic sampling constraints. Our framework enables inference of within-season reproductive schedules in batch-spawning species and highlights opportunities for integrating genomic and life-history data in fisheries monitoring and reproductive ecology.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 6","pages":"1283-1289"},"PeriodicalIF":6.3,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148675016","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":"Addressing Bias in Non-Probability Fisheries Surveys Using Multilevel Regression and Poststratification Approaches","authors":"Zachary Radford,&nbsp;Wendy Edwards,&nbsp;Samantha Hook,&nbsp;Bridgid Bell,&nbsp;Rebecca Mills,&nbsp;Grace Farrell,&nbsp;Martin J. Genner,&nbsp;Stephen D. Simpson,&nbsp;Kieran Hyder","doi":"10.1111/faf.70101","DOIUrl":"10.1111/faf.70101","url":null,"abstract":"<p>Quantifying harvest of fish stocks is challenging as census data are often unavailable, so surveys are required. Traditional probability-based surveys use random sampling to obtain representative data that can be scaled to estimate total impact. However, these surveys are costly, so cheaper, non-probability, citizen science surveys of self-selected participants are becoming commonplace. Respondents in these surveys may not be representative and inclusion probabilities are unknown, making weighting difficult. This resembles exit polls, which successfully predict election outcomes using Multi-level Regression and Post-stratification (MRP), but this has not been tested in fisheries. This study applied MRP to quantify UK recreational sea angling (RSA) participation and catches using data from the UK Sea Angling Diary Project. This represents a ‘worst-case’ scenario, as there is no sampling frame and no mandatory reporting. Five Bayesian multi-level models were fitted to two survey datasets: one quantifying participation and days fished, and another location, numbers, and weight of fish caught. Predictions were post-stratified using UK census data. Estimates from the traditional reweighting and MRP were compared, and a simulation approach was used to assess the accuracy and precision of the two methods. MRP reduced self-selection bias and improved estimates in under-represented groups, producing a 40% and 61% improvement for participation and catch, respectively. Average annual UK RSA participation was estimated to be 688,000 anglers, with 6.1 million days fished. Annual catch estimates were 32.4 million fish, weighing 14,876 t. This study demonstrates the value of MRP for reducing bias when analysing and scaling non-probabilistically collected survey data.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 5","pages":"1088-1106"},"PeriodicalIF":6.3,"publicationDate":"2026-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148288453","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":"Advancing Automated Fish Size Estimation From Images: Applications, Challenges and a Case Study for Images Without a Specified Reference Object","authors":"Catarina N. S. Silva,&nbsp;Ricardo Cardoso Pereira,&nbsp;Freddie Heather,&nbsp;Sean Simmons,&nbsp;Asta Audzijonyte","doi":"10.1111/faf.70097","DOIUrl":"10.1111/faf.70097","url":null,"abstract":"<div>\u0000 \u0000 <p>Automatic and accurate estimation of fish sizes from images is essential for many monitoring, fisheries management, stock assessment and conservation efforts. However, current methods often rely on physical reference objects or stereo-camera systems that are not always available. This paper explores the advancements, applications and challenges of automated fish body-size estimation from images, using artificial intelligence (AI) and machine learning (ML) methods. We first introduce key concepts in AI and ML for a non-specialised audience and review existing literature on models used for fish size estimation. We identify key barriers such as a lack of high quality and publicly available datasets, image variability, scattered efforts and the challenges of model generalisation across diverse species. Then we present a novel framework for size estimation from monocular (non-stereo) images without a specified reference object, using a dataset from an angling app. Our approach utilises an efficient, pretrained deep learning-based feature extraction tool integrated with an automated regression pipeline. Our findings demonstrate a promising pathway for size estimation in images without a reference object, with most estimated fish lengths within 10% of their true length. Future research and collaborative efforts should focus on diversifying and sharing training data and integrating metadata. To this end, we created a user-friendly online application, where the community can test the model performance and contribute photos. Finally, it is essential to rigorously test and refine the robustness of current models in real-world fisheries applications and to adopt standardised, comparable metrics for evaluating fish size estimation models across studies.</p>\u0000 </div>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 5","pages":"1057-1073"},"PeriodicalIF":6.3,"publicationDate":"2026-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148288495","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":"Management Participants Perceive That Structural Barriers, Not Information Needs, Most Impede Adaptation in U.S. Fisheries Management","authors":"Abigail S. Golden,&nbsp;Jacqueline M. Vogel,&nbsp;Arielle Levine,&nbsp;Marissa L. Baskett,&nbsp;Daniel S. Holland,&nbsp;Katherine E. Mills,&nbsp;Timothy Essington","doi":"10.1111/faf.70104","DOIUrl":"10.1111/faf.70104","url":null,"abstract":"<p>Fisheries are facing increasingly frequent and severe climate change-related stressors such as marine heatwaves, harmful algal blooms, and species distribution shifts. Many fisheries management bodies have been working to increase the capacity of their regulatory systems to adapt to these new conditions, but progress has been slow and piecemeal. To identify the most important barriers to this adaptation, in spring 2024 we surveyed 321 fisheries management professionals and fisheries scientists involved in the U.S. regional fisheries management system. This survey revealed broad agreement among respondents about the most and least important barriers to adaptation, regardless of respondents' regional affiliation or role in the management system. In particular, two key barriers emerged as being salient to almost all survey respondents. These barriers were stakeholders focusing on protecting their current interests and/or the status quo (82% agreement) and a tension between the structural rigidity of the U.S. fisheries management system and the flexibility needed to adapt (71.5%). In contrast, conceptual and informational barriers, such as not seeing a need to adapt (4% agreement) and not recognizing the usefulness of adaptive capacity concepts (14% agreement), were the least salient across regions and roles in management. These results suggest that successful climate adaptation will depend on tackling difficult structural challenges, such as developing more flexible regulatory systems and creating mechanisms to address concerns and resistance by stakeholders who expect to incur losses in the process of adaptation.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 5","pages":"1151-1165"},"PeriodicalIF":6.3,"publicationDate":"2026-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148288454","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":"Competitiveness in American Seafood Requires Climate-Resilient Fisheries","authors":"Juan Carlos Villaseñor-Derbez,&nbsp;Amelia Willett Burfoot,&nbsp;Renato Molina","doi":"10.1111/faf.70108","DOIUrl":"10.1111/faf.70108","url":null,"abstract":"<p>Recent federal executive actions prioritize restoring American seafood competitiveness through deregulation and production targets, yet these policies overlook the fundamental threat posed by climate-driven natural hazards. We argue that true seafood competitiveness cannot be achieved through production gains alone because competitiveness also relies on stable production. Disaster resilience is therefore essential to long-term seafood competitiveness as it promotes stability and shortens recovery times. To address this policy gap, we propose a three-pillar framework that encompasses adaptive governance, a politically insulated safety net and quantified climate risk assessments as the foundation for a durable, competitive and resilient American seafood industry. We illustrate our point using fisheries from U.S. Gulf states as an example of a system increasingly exposed to natural hazards, the most prominent of which are hurricanes. This climate vulnerability is not unique to the Gulf nor to hurricanes. Other climate-driven impacts such as marine heatwaves and harmful algal blooms are becoming increasingly prevalent and impose analogous shocks along U.S. waters.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"27 5","pages":"1234-1241"},"PeriodicalIF":6.3,"publicationDate":"2026-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.70108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148394092","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}