Fish and Fisheries最新文献

{"title":"Drivers of success, speed and performance in fisheries moving towards Marine Stewardship Council certification","authors":"Jennifer Rasal,&nbsp;Michael C. Melnychuk,&nbsp;Amanda Lejbowicz,&nbsp;Carlos Montero-Castaño,&nbsp;Sophie Ferber,&nbsp;Catherine Longo","doi":"10.1111/faf.12805","DOIUrl":"10.1111/faf.12805","url":null,"abstract":"<p>With growing concerns about global overfishing, market-based eco-certification programs like the Marine Stewardship Council (MSC) can incentivise adoption of sustainable practices. Several studies investigated drivers of improvement in market-driven Fisheries Improvement Projects, but failed to use detailed, standardised measures of progress, or considered small samples. We considered the relative influence market, governance and fishery-specific drivers have on MSC certification speed and success in 208 fisheries. To evaluate improvement we compared pre-certification scores from MSC pre-assessments—rapid high-level audits against the MSC Standard—to scores from full MSC audits. Drivers considered included measures of pre-assessment quality, as this initial advice might contribute to later certification success. National fishery management capacity, percentage of MSC catch and landed value were the strongest drivers of successful and rapid certification. Environmental improvements occurred for stock management, ecosystem health and governance aspects. While only 48% of fisheries with favourable pre-assessment outcomes went on to be certified, improvements in many fisheries with lower pre-assessment scores were observed in their lead-up to full assessment. Random forest analyses allowed for considering multiple interacting variables simultaneously and revealed influential drivers under specific fishery contexts. For example, higher certification probability was associated with greater percentage of MSC catch under the full dataset, but not under subsets representing fisheries facing more challenging contexts for certification. Fisheries from lower/middle-income countries had lower overall probability of certification, but this increased with higher management capacity. This suggests multiple drivers interact in instigating fisheries improvements, and MSC pre-assessments provide valuable resources to understand this journey.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"235-250"},"PeriodicalIF":6.7,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.12805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138565635","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":"Trait-based analyses reveal global patterns in diverse diets of albacore tuna (Thunnus alalunga)","authors":"Natasha A. Hardy,&nbsp;Cindy Matuch,&nbsp;Zachary Roote,&nbsp;Iris George,&nbsp;Barbara A. Muhling,&nbsp;Michael G. Jacox,&nbsp;Elliott L. Hazen,&nbsp;Steven J. Bograd,&nbsp;Larry B. Crowder,&nbsp;Stephanie J. Green","doi":"10.1111/faf.12807","DOIUrl":"10.1111/faf.12807","url":null,"abstract":"<p>Simplifying complex species interactions can facilitate tracking and predicting functional responses to ecological stressors. This is important for highly migratory pelagic predators, exploiting diverse prey fields as they respond to dynamic environments. We reconstructed the historical resource use of albacore tuna (<i>Thunnus alalunga</i>) globally from the 1900s to 2015 and confirmed highly biodiverse diets with 308 prey species, and an additional 238 taxa at coarser taxonomic resolution. We synthesised prey diversity into seven functional trait guilds using hierarchical divisive clustering algorithms as a function of four traits that describe habitat use and influence predator–prey encounter rates – prey habitat association vertically in the water column, horizontally along the coastal to pelagic gradient, seasonal and diel vertical migratory behaviour. We explored variability in historical composition of albacore diets across geographies based on species identity, individual trait information and functional trait guilds using a multi-matrix modelling framework. Taxonomic information remains important for trophic ecology, however, species-based diet composition in albacore tuna was highly variable across geographies and years sampled, making interpretation of these patterns difficult. By simplifying species identity into habitat-based traits, we highlight changes in prey resources consumed, such as the historical importance of near-surface epipelagic prey resources from coastal to oceanic habitats, and seasonally migrating continental shelf prey, with less frequent pulses of deeper water and demersal taxa. Trait information and trait guilds serve as useful classification frameworks for identifying functionally redundant food web linkages across biodiverse prey, and will prove useful in tracking predators' foraging responses to changing resource availability.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"268-282"},"PeriodicalIF":6.7,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.12807","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138545001","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":"Quota use in mixed-stock fisheries","authors":"William A. Karp,&nbsp;Michael C. Melnychuk,&nbsp;Robyn E. Forrest,&nbsp;Lorne Richard Little,&nbsp;Kristin McQuaw,&nbsp;Chad Demarest,&nbsp;Ray Hilborn,&nbsp;Nicole Baker,&nbsp;Brian Mose,&nbsp;Bruce Turris,&nbsp;Ernesto Penas Lado","doi":"10.1111/faf.12806","DOIUrl":"10.1111/faf.12806","url":null,"abstract":"<p>Although most fisheries assessment and management focuses on the status of individual stocks, and regulations are commonly established as single-species total allowable catch limits (TACs), much of the catch from global fisheries comes from mixed-stock fisheries where species cannot be harvested separately. We show that in some fisheries where TAC and catch of demersal fish stocks are tracked, the average fraction of TAC harvested ranges from 21% to 68% overall and is declining. This is, in part, related to efforts to protect all species from overfishing, leading to ‘choke species’, which limit fishing pressure on other target species. While some choke species arise from a mix of low and high-productivity species, others result from allocation processes, which can be aggravated by shifting distributions due to climate change. Underutilization of TACs can also result from market limitations, low value of individual species, undercapacity or management measures. Proposed methods for increasing long-term yield require species to be managed in stock groups, or allowing the abundance of some stocks to fall below target reference points. We suggest that the observed low and declining aggregate harvests are due, primarily, to the focus on single-stock sustainability measures, rather than performance of the fisheries in relation to potential overall yield. While there is a growing consensus that single-species management should be replaced by an ecosystem-based approach, this will require clear legislative directives regarding management of the trade-offs involved. Time series considered in this analysis do not extend beyond 2019.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"251-267"},"PeriodicalIF":6.7,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138456054","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":"Simulating benefits, costs and trade-offs of spatial management in marine social-ecological systems","authors":"Daniel Ovando,&nbsp;Darcy Bradley,&nbsp;Echelle Burns,&nbsp;Lennon Thomas,&nbsp;James Thorson","doi":"10.1111/faf.12804","DOIUrl":"10.1111/faf.12804","url":null,"abstract":"<p>Designing effective spatial management strategies is challenging because marine ecosystems are highly dynamic and opaque, and extractive entities such as fishing fleets respond endogenously to ecosystem changes in ways that depend on ecological and policy context. We present a modelling framework, <span>marlin</span>, that can be used to efficiently simulate the bio-economic dynamics of marine systems in support of both management and research. We demonstrate <span>marlin</span>'s capabilities by focusing on two case studies on the conservation and food production impacts of marine protected areas (MPAs): a coastal coral reef and a pelagic tuna fishery. In the coastal coral reef example, we explore how heterogeneity in species distributions and fleet preferences can affect distributional outcomes of MPAs. In the pelagic case study, we show how our model can be used to assess the climate resilience of different MPA design strategies, as well as the climate sensitivity of different fishing fleets. This paper demonstrates how intermediate complexity simulation of coupled bio-economic dynamics can help communities predict and potentially manage trade-offs among conservation, fisheries yields and distributional outcomes of management policies affected by spatial bio-economic dynamics.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"218-234"},"PeriodicalIF":6.7,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138437292","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 the diversity of freshwater fish migrations in the Amazon basin","authors":"Guido A. Herrera-R,&nbsp;Sebastian A. Heilpern,&nbsp;Thiago B. A. Couto,&nbsp;Lulu Victoria-Lacy,&nbsp;Fabrice Duponchelle,&nbsp;Sandra B. Correa,&nbsp;Aldo Farah-Pérez,&nbsp;Silvia López-Casas,&nbsp;Carlos M. Cañas-Alva,&nbsp;Carolina R. C. Doria,&nbsp;Elizabeth P. Anderson","doi":"10.1111/faf.12795","DOIUrl":"10.1111/faf.12795","url":null,"abstract":"<p>In the Amazon, the world's largest river basin, migrations within freshwater habitats are one of the predominant life history strategies for fishes. The flood pulse and the extensive river network provide aquatic organisms with temporal and spatial accessibility to a mosaic of freshwater habitats. Although migratory fish species are central to freshwater ecosystems and fisheries, the knowledge of species and migratory patterns has traditionally relied on anecdotal and scattered information, lacking a unifying methodological and conceptual framework. We quantitatively synthesize the evidence about this biological phenomenom in the Amazon basin through a systematic literature review. We constructed a reference database of migratory events in the Amazon basin, including species, life stages, purposes, direction, habitats and subbasins. We found that 223 species were documented in 90 references as performing migrations distributed across eight orders and 31 families. Migration is a conserved trait in the evolutionary history of Amazonian fish fauna, suggesting that ~41% of migratory species are likely unreported. We noted a geographical bias in the report of migratory events towards 13 of the 27 major subbasins of the Amazon. We found a significant association between the hydrological timing at the beginning and end of migrations across species, including reproduction as the most commonly reported purpose. However, most species lack the application of robust methods (e.g. telemetry, otolith microchemistry) to classify them as migratory, relying upon secondary sources of information (i.e. reviews or species checklists). Further, we discuss future opportunities and challenges to continue the study of fish migrations in the Amazon basin.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 1","pages":"114-133"},"PeriodicalIF":6.7,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138432565","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":"Trees for fishes: The neglected role for phylogenetic comparative methods in fisheries science","authors":"James T. Thorson","doi":"10.1111/faf.12800","DOIUrl":"10.1111/faf.12800","url":null,"abstract":"<p>Fisheries scientists compare processes among species to estimate species productivity, management reference points, and climate sensitivities. Ecologists have developed “phylogenetic comparative methods” (PCMs) to address these questions, but there is surprisingly little application of PCM within fisheries science. Here, I bridge this gap by introducing PCM (including Brownian motion, Ornstein–Uhlenbeck, and Pagel's kappa and lambda models for species covariance), thereby showing that PCM generalizes the nested taxonomic random effects that are commonly used in fisheries science. I next summarize phylogenetic structural equation models (PSEMs), which extend the linear models that are commonly used in fisheries. Finally, I re-analyse a high-quality database used to predict mortality rates from longevity and/or growth parameters. I specifically propose a PSEM that reverts to a longevity-based prediction when longevity information is available but uses phylogenetic corrected growth parameters otherwise. Using this single PSEM replaces the common practice of fitting and predicting using separate linear models depending upon what data are available for a given species. Cross-validation suggests that the relationship between log-mortality rate and longevity does not vary based on phylogeny, and therefore, linear models and PSEM both explain 82% of variance when longevity is available. When longevity is unavailable, by contrast, the linear model explains only 37% of variance while the PSEM explains 52% of variance, where this gain occurs from conditioning predictions on phylogenetic similarities. I therefore conclude that PCM and PSEM provide a general and user-friendly replacement for linear models and can improve performance for fisheries meta-analyses that are used for fisheries management applications.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 1","pages":"168-179"},"PeriodicalIF":6.7,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138293474","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":"Identifying priority areas for spatial management of mixed fisheries using ensemble of multi-species distribution models","authors":"Diego Panzeri,&nbsp;Tommaso Russo,&nbsp;Enrico Arneri,&nbsp;Roberto Carlucci,&nbsp;Gianpiero Cossarini,&nbsp;Igor Isajlović,&nbsp;Svjetlana Krstulović Šifner,&nbsp;Chiara Manfredi,&nbsp;Francesco Masnadi,&nbsp;Marco Reale,&nbsp;Giuseppe Scarcella,&nbsp;Cosimo Solidoro,&nbsp;Maria Teresa Spedicato,&nbsp;Nedo Vrgoč,&nbsp;Walter Zupa,&nbsp;Simone Libralato","doi":"10.1111/faf.12802","DOIUrl":"10.1111/faf.12802","url":null,"abstract":"<p>Spatial fisheries management is widely used to reduce overfishing, rebuild stocks, and protect biodiversity. However, the effectiveness and optimization of spatial measures depend on accurately identifying ecologically meaningful areas, which can be difficult in mixed fisheries. To apply a method generally to a range of target species, we developed an ensemble of species distribution models (e-SDM) that combines general additive models, generalized linear mixed models, random forest, and gradient-boosting machine methods in a training and testing protocol. The e-SDM was used to integrate density indices from two scientific bottom trawl surveys with the geopositional data, relevant oceanographic variables from the three-dimensional physical-biogeochemical operational model, and fishing effort from the vessel monitoring system. The determined best distributions for juveniles and adults are used to determine hot spots of aggregation based on single or multiple target species. We applied e-SDM to juvenile and adult stages of 10 marine demersal species representing 60% of the total demersal landings in the central areas of the Mediterranean Sea. Using the e-SDM results, hot spots of aggregation and grounds potentially more selective were identified for each species and for the target species group of otter trawl and beam trawl fisheries. The results confirm the ecological appropriateness of existing fishery restriction areas and support the identification of locations for new spatial management measures.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"187-204"},"PeriodicalIF":6.7,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.12802","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138293088","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":"Syndemics of the sea: Adverse disease interactions and the stressors of fisher livelihoods","authors":"Merrill Singer","doi":"10.1111/faf.12803","DOIUrl":"10.1111/faf.12803","url":null,"abstract":"<p>The occupation of commercial fishing is recognized as a comparatively stressful and hazardous job characterized by a myriad of risks to health, including high rates of job-related injury, morbidity, and mortality. Nonetheless, systematic study of fisher health is limited. This paper examines a particularly understudied aspect of illness among fishers: the physical and social contexts, pathways, and potential for adverse disease interactions. The focus of the paper is on a biosocial disease process called syndemics, which increases the health burdens of this population. The paper is presented as an initial testing of the hypothesis that a “lens” of syndemics improves occupational health research and advocacy for commercial fishermen who face a substantial burden of biosocial challenges.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 2","pages":"205-217"},"PeriodicalIF":6.7,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71507464","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":"Correction to article “Impact of the 2014–2016 marine heatwave on US and Canada West Coast fisheries: Surprises and lessons from key case studies”","authors":"","doi":"10.1111/faf.12801","DOIUrl":"10.1111/faf.12801","url":null,"abstract":"<p>Free, C. M., Anderson, S. C., Hellmers, E. A., Muhling, B. A., Navarro, M. O., Richerson, K., Rogers, L. A., Satterthwaite, W. H., Thompson, A. R., Burt, J. M., Gaines, S. D., Marshall, K. N., White, J. W., &amp; Bellquist, L. F. (2023). Impact of the 2014–2016 marine heatwave on US and Canada West Coast fisheries: Surprises and lessons from key case studies. <i>Fish and Fisheries</i>, <i>24</i>, 652–674. https://doi.org/10.1111/faf.12753</p><p>The authors would like to update Figure 1, as the published version is incorrect. In Panel A, two of the years in the facet labels are wrong.</p><p>Revised Figure 1</p><p>We apologize for the error.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 1","pages":"183"},"PeriodicalIF":6.7,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/faf.12801","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71507606","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":"Is FAD fishing an economic trap? Effects of seasonal closures and other management measures on a purse-seine tuna fleet","authors":"P. Guillotreau,&nbsp;F. Salladarré,&nbsp;M. Capello,&nbsp;A. Dupaix,&nbsp;L. Floc'h,&nbsp;A. Tidd,&nbsp;M. Tolotti,&nbsp;L. Dagorn","doi":"10.1111/faf.12799","DOIUrl":"10.1111/faf.12799","url":null,"abstract":"<p>The management of fish aggregating devices (FAD) creates heated debates in tuna fishery management organizations striving to reduce the number of deployed floating objects. Through several econometric models and a machine learning approach, we evaluate the consequences of three management scenarios on the catch and profit of the French purse-seine fleet operating in the Indian Ocean: (1) a half reduction in the number of authorized buoys per vessel, (2) a 72-day closure of FAD fishing with and (3) without re-allocation of effort on free schools. The results show a significant decrease of fleet profits by 7%, 10% and 18% respectively. We hypothesize an “economic trap” of FAD fishing caused by the far greater efficiency of this harvesting technique for larger vessels searching for economies of scale, and by the overfished status and catch limitation of yellowfin (<i>Thunnus albacares</i>) and bigeye (<i>Thunnus obesus</i>) tunas in the Indian Ocean. The results are compared with other studies looking at the impact of FAD management measures in other oceans.</p>","PeriodicalId":169,"journal":{"name":"Fish and Fisheries","volume":"25 1","pages":"151-167"},"PeriodicalIF":6.7,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71507603","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}