Fish and Fisheries最新文献

{"title":"Comparing Data‐Poor and Data‐Rich Stock Assessments to Generalise Guidance for Pacific Coral‐Reef Fisheries","authors":"Peter Houk, Brett Taylor","doi":"10.1111/faf.12903","DOIUrl":"https://doi.org/10.1111/faf.12903","url":null,"abstract":"The growing use of data‐poor fisheries models provides unprecedented access to compelling stock metrics and management scenarios for coral‐reef fisheries. Yet, it remains unclear how well the assumptions surrounding data‐poor models derived from extensive cold‐water fisheries fit the life histories and ecology of tropical coral‐reef fishes. The present study compared the outcomes from length‐based spawning potential ratio (LBSPR) models versus observed trends from a novel meta‐analysis of nine fisheries‐independent (FI) and fisheries‐dependent (FD) data streams across Micronesia. Thirty target species that comprised over 70% of landings were examined across temporal and spatial fishing pressure gradients associated with FI and FD streams. Cluster analyses using normalised effect sizes from over 140 statistical tests grouped the stocks based on the magnitudes of decline in (proportional) biomass and size‐structure. Interestingly, many species with the greatest declines had modelled SPR and fishing mortality outcomes that did not trigger management based on established thresholds. These inconsistencies were attributed to several factors: variable compensatory density dependence across species, rapid growth over short time periods for small‐bodied species leading to hyper‐sensitive switch points in SPR metrics, and unusually long lifespans that did not always correlate with body sizes or growth rates. The complexity of life histories appeared to limit the use of snapshot data‐poor models for depicting relative stock status across species; however, data‐poor outcomes through time for each species better aligned with FI and FD trends. We generalise management guidance for a common and dominant group of tropical Pacific species.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"31 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875948","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":"Mapping the Structure and Evolution of Fish Bio‐ and Ecoacoustics; From Single Species Studies to Biodiversity Monitoring","authors":"Marta Bolgan","doi":"10.1111/faf.12899","DOIUrl":"https://doi.org/10.1111/faf.12899","url":null,"abstract":"This review examines the progression of fish bioacoustics and ecoacoustics, with a focus on the growing application of Passive Acoustic Monitoring (PAM) as a non‐invasive tool for assessing fish biodiversity. As environmental conservation goals intensify globally, particularly with initiatives such as Biodiversity Net Gain, the need for effective methods to monitor aquatic biodiversity has become increasingly critical. PAM provides a scalable approach for tracking fish species, community structures and population dynamics across diverse habitats, addressing many limitations of traditional monitoring techniques. By cataloguing species‐specific acoustic signatures, PAM enables long‐term monitoring of fish biodiversity, which is crucial for conservation in remote and dynamic aquatic environments. Despite ongoing challenges – such as distinguishing species with overlapping acoustic niches, managing large datasets and ensuring the precise classification of sound types – recent advancements in artificial intelligence offer promising solutions. These technologies help balance the trade‐off between analytical efficiency and the ecological and biological significance necessary for effective management and conservation. This review presents an overview of the thematic structure and temporal evolution of the field of fish bioacoustics and ecoacoustics and discusses future directions for the field to support sustainable ecosystem management and biodiversity conservation.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"139 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851032","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":"Mixed‐Species Fish Shoals: Any Port in a Storm?","authors":"Mike M. Webster, Nicholas A. R. Jones, Akanksha N. Shah, Ashley J. W. Ward","doi":"10.1111/faf.12902","DOIUrl":"https://doi.org/10.1111/faf.12902","url":null,"abstract":"Mixed‐species fish shoals are common, and form for a variety of reasons. We suggest that short term mixed‐species shoals, that persist for minutes or hours, might form because lone individuals (or small groups) of one species might benefit from joining larger groups of heterospecifics to reduce predation risk. We carried out a literature survey, which revealed that mixed‐species groups seldom contain equal numbers of species; rather one or two dominate, with others present as small minorities. Furthermore, we found that the proportion of minority species decreases as absolute shoal size increases. We suggest that although minority members of mixed‐species groups might suffer costs associated with being odd, they might often still do better by grouping than if they remained alone. We term this ‘any port in a storm’. This explanation makes several predictions and assumptions, and we suggest approaches for testing these. For example, minority members should attempt to form single‐species groups when the opportunity arises, and mixed species‐groups should coincide with periods of heightened predation risk. Mixed‐species groups may be influenced by the distribution of shelter, and further work is needed to disentangle the relative importance of aggregation versus social attraction in the formation of mixed‐species‐shoals. This account of mixed‐species groups does not exclude other ecological functions, such as forager‐guild formation, but may explain cases of short‐term associations of minority species with numerically dominant species in fish shoals. Our predictions are readily testable, and we hope they spur further research in this area.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"39 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851007","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":"Behavioural Economics in Marine Fisheries Management: A Systematic Review","authors":"Amanda Schadeberg, Alina Madita Wieczorek, Dorothy J. Dankel, Katell G. Hamon, Marloes Kraan, Mary Mackay, Debbi Pedreschi, Ingrid van Putten, Andries Richter, Noa Steiner, Nathalie A. Steins, Xanthe Verschuur","doi":"10.1111/faf.12901","DOIUrl":"https://doi.org/10.1111/faf.12901","url":null,"abstract":"Targeted management interventions can influence marine resource user behaviour, yet some remain ineffective. Behavioural economics may offer valuable insights on this topic by identifying which interventions can effectively change human behaviour and how they can be applied. This systematic review (<jats:italic>N</jats:italic> = 140) synthesises evidence from behavioural economics studies conducted in a fisheries context. The results include a table of behavioural mechanisms and examples of evidence for behavioural interventions changing environmental, economic, and social outcomes. There is a growing body of evidence that interventions that activate mechanisms such as social norms or risk aversion can impact environmental outcomes. However, there is a general lack of explicit reporting of the link between behavioural mechanisms, interventions, and outcomes, revealing weak conceptualisation in the field. This hinders the ability of scientists, practitioners, and policymakers to derive actionable insights from the research. Furthermore, the ethics of intervening in human behaviour as well as thorough analysis of unintended consequences need significant attention. To resolve these issues and guide the field forward, this systematic review offers recommendations for both science and policy as well as a conceptual framework that can improve the design of future studies that aim to understand human behaviour in a fisheries setting.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"6 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841560","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":"A Global Synthesis of Population Demographic Models in Sharks and Rays","authors":"Diego Mejía, Carlos Robalino‐Mejía, Felipe Galván‐Magaña, Agustín Hernández‐Herrera, Ulianov Jakes‐Cota, Héctor Villalobos, Rodrigo Moncayo‐Estrada, Joel H. Gayford","doi":"10.1111/faf.12900","DOIUrl":"https://doi.org/10.1111/faf.12900","url":null,"abstract":"Demographic models are vital tools in fisheries management, particularly for data‐limited species such as sharks and rays. However, a significant gap exists in the statistical quantification of productivity metrics related to elasmobranchs. This study addresses this gap by conducting a meta‐analysis of population models for sharks and rays, framed within a scientometric context. We reviewed 91 publications, which revealed a modest positive trend in research over time. Our findings suggest that the geographical distribution of life history traits may be more important than ecological variables in determining elasmobranch vulnerability to fishing. Furthermore, Rays and oviparous elasmobranchs generally exhibit higher finite rates of population growth (<jats:italic>λ</jats:italic>) compared to sharks and viviparous elasmobranchs, respectively. However, when correcting for phylogenetic relationships, these differences become statistically non‐significant, highlighting the importance of accounting for phylogenetic non‐independence when interpreting interspecific trends in demographic traits. A significant negative correlation between mean lambda values and IUCN status was found, indicating that species at greater risk of extinction have lower lambda values. Odontaspididae and Mobulidae are identified as the most vulnerable shark and ray families to fishing pressure, respectively. Our results suggest that elasmobranchs inhabiting lower latitudes and warmer temperatures are more vulnerable to fishing pressure. Methodological approaches have evolved, with a notable increase in the use of matrix models over time. Most elasmobranchs studied demographically are classified as least concern, particularly rays. This highlights the need for intensified research efforts focused on threatened species, as well as addressing geographic biases prevalent in developing countries.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"108 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836776","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":"You Can't Reach the Lost Valley by Boat: Navigating Bottom‐Up Restoration Pathways","authors":"C. H. Ainsworth, H. C. Repeta, R. L. Scott","doi":"10.1111/faf.12897","DOIUrl":"https://doi.org/10.1111/faf.12897","url":null,"abstract":"We explore bottom‐up restoration pathways on the West Florida Shelf using an Atlantis end‐to‐end biogeochemical food web model. We simulate three ecosystem states, the 1990s, the present day, and a restored future ecosystem. The restored ecosystem is informed by current restoration efforts by the Florida Trustee Implementation Group, responsible for administering restoration projects totaling $680 million. These will restore nearshore habitat, improve water quality and promote user access. We consider four bottom‐up drivers of productivity: seagrass coverage, mangrove presence, wave energy and nutrient inputs. We developed a series of generalised additive models to analyse Florida Wildlife Commission fisheries independent monitoring fish abundance data from inshore sites in Florida. After correcting for confounding environmental variables using statistical models, we describe the relationship between relative abundance and habitat. These relationships were used to parameterize recruitment and feeding effects in Atlantis to reflect the ecology of seagrass‐associated fish. Model results suggest restoration efforts in inshore areas yield a 2%–3% increase in small‐bodied forage fish and support a more robust pelagic food web. Restoration increases demersal fish abundance, and there is a suggestion that mangroves may promote this via a habitat mosaic effect. Cross‐shelf ontogenetic migration offers an express route by which terrigenous production is exported to offshore food webs, but benefits to species of interest are variable. There were increases of 1%–3% for pelagic fish groups and 1%–5% for demersal fish groups.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"5 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822766","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":"Recognising and Protecting the National Benefit of Sustainable Fisheries in the UK","authors":"Sarah Coulthard, Ainsley Hatt, Phoebe Lewis, Bryce D. Stewart, Michael Roach, Robert Clark, Sam Fanshawe, Carole Sandrine White, Julie Urquhart, Jerry Percy, Tim Gray, Emily Bulled, Joe Richards, Rachel Turner, Edward Baker, Louisa Evans, Tom Chaigneau, Tom Hooper, Jack Longsden, Jeremy Anbleyth‐Evans","doi":"10.1111/faf.12898","DOIUrl":"https://doi.org/10.1111/faf.12898","url":null,"abstract":"Sustainable commercial fishing makes valuable contributions to coastal regions and broader national benefits. This paper offers three arguments in relation to what is required for the societal benefits of sustainable fisheries to be fully realised and considers each in the context of the UK but with global relevance. First, there is a need to raise the profile of the full range of benefits that are delivered through sustainable fisheries to coastal communities and the broader public. In the UK, the delivery of a ‘national benefit’ objective through fisheries is now enshrined in law by the Fisheries Act, 2020; we operationalise this through a new framing that distils eight ‘national benefits’ that all sustainable fisheries should deliver. Second, better acknowledgement of what society gains from sustainable fisheries must be paralleled with recognition of what society is simultaneously at risk of losing through the decline of the fishing fleet. We detail this decline in a new analysis of long‐term UK data, which highlights that the decline is unequally felt, with some regions of the UK, and small‐scale fishing sectors, experiencing loss more acutely. This reality leads us to argue a third point, that if society is to retain and truly harness the benefits that flow from sustainable fisheries, governing bodies must act quickly to ensure that fisheries are environmentally sustainable, diverse and inclusive, pursuing fisheries that ‘leave no one behind’.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"17 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819276","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":"A Synthesis of Factors Related to Trends in Abundance and Demography of Alaska Chinook Salmon (Oncorhynchus tshawytscha, Salmonidae): Implications for Research, Management, and Policy","authors":"Chase C. Lamborn, Jan Ohlberger, Timothy E. Walsworth, Peter A. H. Westley, Curry J. Cunningham, Sam Wynsma, Jordan W. Smith","doi":"10.1111/faf.12895","DOIUrl":"https://doi.org/10.1111/faf.12895","url":null,"abstract":"Across Alaska, there have been synchronous declines in the abundance, mean age, and size of Chinook salmon (<jats:styled-content style=\"fixed-case\"><jats:italic>Oncorhynchus tshawytscha</jats:italic></jats:styled-content>, Salmonidae), a species with immense social and ecological importance. The decline of Chinook salmon, and regulations addressing declines, have drastically impacted people who rely on Alaska's fisheries. Despite their importance, the drivers causing Chinook salmon declines are still not well understood. Therefore, to improve our understanding of the likely drivers of these large‐scale synchronous declines, we synthesised the peer‐reviewed Chinook salmon literature published between 2010 and 2024 using a weight‐of‐evidence approach. We identified 94 variables used to explain the trends in abundance and demographics of Chinook salmon. Each variable's association with trends in Chinook salmon was individually assessed and integrated using a standardised method. Results of this synthesis suggest the drivers for large‐scale synchronous declines have occurred in the North Pacific Ocean. Specifically, we found marine predation, size selective harvest, and pink salmon (<jats:styled-content style=\"fixed-case\"><jats:italic>Oncorhynchus gorbuscha</jats:italic></jats:styled-content>) abundance are the factors most strongly associated with reduced size and age. Results also suggest ocean productivity–specifically winter sea surface temperature and the North Pacific Gyre Oscillation–are the most frequently identified predictors of regional Chinook salmon abundance. In addition to addressing freshwater factors like adult heat stress and juvenile predation, we suggest research, policy, and management focus on how to better understand and address the interactions between ocean productivity, marine predation, size selective harvest, and pink salmon abundance to improve the condition of Chinook salmon, and the people and ecosystems benefiting from them.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"29 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782486","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":"Consistent Unimodal Body Length Distributions in Hundreds of Reef Fishes Across Diverse Life Histories","authors":"Freddie J. Heather, Shane A. Richards, Nils C. Krueck, Rick D. Stuart‐Smith, Simon J. Brandl, Jordan M. Casey, Graham J. Edgar, Neville Barrett, Valeriano Parravicini, Asta Audzijonyte","doi":"10.1111/faf.12896","DOIUrl":"https://doi.org/10.1111/faf.12896","url":null,"abstract":"Animal body size distributions result from interactions of growth, mortality and recruitment. In ecology and fisheries science, theoretical models of fish body size distributions are widely used but rely on life‐history parameters—growth coefficient (K) and natural mortality rate (M)—that remain unknown for most species and are challenging to estimate. Analysing data from underwater visual surveys and exhaustive sampling, representing 3068 populations across 797 species of shallow‐water, mostly unfished marine fishes, we demonstrate that post‐recruitment body length distributions exhibit a consistent unimodal shape across species and populations. When scaled to the mean body length, these distributions are strikingly similar across all teleost and elasmobranch species, with diverse life histories and maximum body sizes ranging from 1 cm to 3 m. Observed size structure can be approximated by a truncated normal distribution with a coefficient of variation of ~0.34 (SE = 0.002). Such consistent observed body size distributions could be aligned with Beverton–Holt population dynamics theory, if assuming an M/K ratio of ~1.5 and logistic observational selectivity with 50% detectability at ~40% of maximum body length. Alternatively, observed distributions could reflect deviations from theoretical expectations, and reconciling the unimodal distributions with theory may require relaxing some model assumptions, such as continuous recruitment, constant density‐independent growth or constant natural mortality. Overall, the consistency of population‐ and species‐level body length distributions means that unfished size structure could be predicted from a single body size parameter. It also suggests evolutionary convergence of diverse growth and mortality processes towards a narrow range of viable outcomes.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"103 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143744964","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":"The Blueprint of the European Eel Life Cycle: Does Life‐History Strategy Undermine or Provide Hope for Population Recovery?","authors":"David Righton, Pieterjan Verhelst, Håkan Westerberg","doi":"10.1111/faf.12894","DOIUrl":"https://doi.org/10.1111/faf.12894","url":null,"abstract":"The life cycle of the European eel (<jats:styled-content style=\"fixed-case\"><jats:italic>Anguilla anguilla</jats:italic></jats:styled-content>) is inherently risky because it relies on the successful migration of larvae and adults across thousands of kilometres of the Atlantic Ocean. In between these migrations, eels need to grow and develop to maximise their potential for successful reproduction. Eels have a number of life‐history characteristics at each life stage that minimise mortality, starvation and predation risks and maximise opportunities for growth. In the larval and silver eel phases, eels select specific habitats and adopt efficient swimming behaviours to minimise predation and migration failure risks. In the glass and yellow eel phase, the opposite is the case, and plasticity and adaptability enable occupation of a broad ecological niche that maximises growth opportunities and enables a continent‐wide distribution. Under natural conditions, these characteristics enable enough individuals to survive, grow and reproduce so that the population is resilient to natural risks. However, there is increasing evidence of impacts of anthropogenic activities that eels may be particularly sensitive to, resulting in a declining population with reduced resilience. Climate‐linked oceanic risk factors are likely to have a significant influence on the recruitment of eels but are not well understood and cannot be easily modified. However, interventions to mitigate known impacts in the growth environment offer hope for population recovery. A greater understanding of the plasticity of the growth phase and the impacts of risks during the oceanic phase is essential to enable management interventions in the Anthropocene to be fully effective.","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"401 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745213","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}