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Survivability of spurdog (Squalus acanthias) in an inshore otter trawl fishery 近岸水獭拖网渔业中棘角鲨(Squalus acanthias)的生存能力
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-28 DOI: 10.1016/j.fishres.2025.107379
Martin Oliver , Ross O’Neill , Matthew McHugh , Daragh Browne , Shane Murphy , Cóilín Minto , Nicolas Chopin , Ronán Cosgrove
{"title":"Survivability of spurdog (Squalus acanthias) in an inshore otter trawl fishery","authors":"Martin Oliver ,&nbsp;Ross O’Neill ,&nbsp;Matthew McHugh ,&nbsp;Daragh Browne ,&nbsp;Shane Murphy ,&nbsp;Cóilín Minto ,&nbsp;Nicolas Chopin ,&nbsp;Ronán Cosgrove","doi":"10.1016/j.fishres.2025.107379","DOIUrl":"10.1016/j.fishres.2025.107379","url":null,"abstract":"<div><div>Spurdog (<em>Squalus acanthias</em>) was previously fished by European Union (EU) vessels, but the fishery closed in 2011 due to poor stock status. Following positive advice on spurdog stock recovery, the fishery reopened in 2023 prompting assessments of management measures and post-capture survival. We assessed spurdog survivability in an inshore bottom otter trawl fishery using condition assessments and survivorship pop-up satellite archival tags (sPATs). We used a five-point scale (excellent, good, poor, moribund and dead) to categorise vitality of 463 sampled spurdog. Twenty spurdog in excellent, good and poor condition were tagged with sPATs. Moribund fish were assumed to have died. Tagged fish size was restricted to 80–100 cm total length (TL) in line with the size of fish capable of carrying tags, the maximum conservation reference size and condition assessments results. The observed fish vitalities were: 9.9 % excellent, 17.3 % good, 34.6 % poor, 38 % moribund and 0.2 % dead. We used a Kaplin-Meier estimator to assess survival of tagged fish over a 30-day period and estimated an overall survival rate of 78 % for spurdog between 80 and 100 cm. Study results provide important input towards enhanced management of spurdog fisheries in the North-East Atlantic.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107379"},"PeriodicalIF":2.2,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of environmental-economic sustainability of fishing vessels and its improvement by alternative powering options in projected decarbonization scenarios 脱碳情景下渔船环境经济可持续性分析及替代动力方案改善
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-23 DOI: 10.1016/j.fishres.2025.107385
Marija Koričan , Ailong Fan , Nikola Vladimir
{"title":"Analysis of environmental-economic sustainability of fishing vessels and its improvement by alternative powering options in projected decarbonization scenarios","authors":"Marija Koričan ,&nbsp;Ailong Fan ,&nbsp;Nikola Vladimir","doi":"10.1016/j.fishres.2025.107385","DOIUrl":"10.1016/j.fishres.2025.107385","url":null,"abstract":"<div><div>The fishery sector faces various environmental challenges to ensure its sustainability, particularly regarding Greenhouse Gas (GHG) emissions originating from fishing activities. Several measures are aimed at improving the energy efficiency of vessels, from technical measures (alternative fuels, hull modification and maintenance…) to operative ones (journey planning, draft and trim optimization…) and market based measures (incentives, green shipping practices, carbon taxation, etc). This paper develops an environmental-economic sustainability index to address challenges in assessing the sustainability of fishing fleets. The index considers all costs, revenues, as well as potential carbon taxation, ensuring its applicability across various regions, fishing gear, and fuels. The application of the sustainability index is presented in the case of the Croatian large-scale fishing fleet, using real-time data on fuel consumption and exact data on the catch rate according to the type of fishing gear. The results show that while most vessels operate profitably under current regulations, the inclusion of carbon taxation may make them unsustainable. To examine the possibility of using alternative fuels, a life-cycle cost assessment of battery-, methanol- and biodiesel-powered systems was conducted. The results showed that certain solutions can become sustainable but the catch rate must be taken into account when investigating their applicability. Full electrification, although the most environmentally friendly, requires very high investment costs making it unsustainable without incentives.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107385"},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fisheries dependent and independent data inform a capture technique for an emerging invasive fish species in the mainstem Mississippi River; Black Carp Mylopharyngodon piceus 渔业依赖和独立的数据提供了一种捕获技术,用于在密西西比河主干线捕获一种新出现的入侵鱼类;青鱼,青鱼
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-23 DOI: 10.1016/j.fishres.2025.107368
Patrick Kroboth, Michael Colvin, Cortney Broaddus
{"title":"Fisheries dependent and independent data inform a capture technique for an emerging invasive fish species in the mainstem Mississippi River; Black Carp Mylopharyngodon piceus","authors":"Patrick Kroboth,&nbsp;Michael Colvin,&nbsp;Cortney Broaddus","doi":"10.1016/j.fishres.2025.107368","DOIUrl":"10.1016/j.fishres.2025.107368","url":null,"abstract":"<div><div>Black Carp <em>Mylopharyngodon piceus</em> were imported into the United States in the 1970s and 1980s for use in aquaculture; escape occurred and reported wild captures increased. Lacking species-specific capture methods, we assessed fisheries dependent incidental Black Carp catches for a common method, hoop nets, by kernel density analysis to identify an area of increased reporting and compare frequency of reports for water temperature, river stage, and capture date to identify seasonality. We then used fisheries independent effort to identify co-occurrence of species via non-metric multi-dimensional scaling and fit Black Carp catch and environmental covariates by generalized linear models to assess site-specific environmental covariates facilitating capture. The best approximating distribution was refitted for predictions and inference. The greatest density of fisheries dependent hoop net captures (39 %) was near the confluence of the Missouri and Mississippi rivers, primarily from July-September. Captures were characterized by median water temperature 26.7°C, river stage 5.02 m, and 223 day-of-year (DOY; mid-August). Ordination of fisheries independent catch identified similarity in environmental covariates of Smallmouth Buffalo <em>Ictiobus bubalus</em> and Black Carp. The probability of capturing ≥ 1 Black Carp increased with DOY, decreased with increasing current velocity, and increased with depth. Most captures occurred in outside bends (87 %) or side channels (12 %). Probability of Black Carp capture was low but increased in summer and early fall when stage is lower, facilitating reduced current velocity and access to deeper areas. Results may be validated beyond this river segment to test if site-specific hydrology or habitat characteristics facilitated increased commercial and biologist capture and for replication.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107368"},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variable post-capture condition estimated by visual assessment for key recreational species discarded in a nearshore marine charter fishery off eastern Australia 在澳大利亚东部近岸海洋租船渔业中,通过目视评估对主要休闲物种丢弃的可变捕获后条件进行估计
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107372
Julian M. Hughes , Daniel D. Johnson , Faith A. Ochwada-Doyle , Jeffrey J. Murphy , Matthew D. Taylor , Ashley M. Fowler
{"title":"Variable post-capture condition estimated by visual assessment for key recreational species discarded in a nearshore marine charter fishery off eastern Australia","authors":"Julian M. Hughes ,&nbsp;Daniel D. Johnson ,&nbsp;Faith A. Ochwada-Doyle ,&nbsp;Jeffrey J. Murphy ,&nbsp;Matthew D. Taylor ,&nbsp;Ashley M. Fowler","doi":"10.1016/j.fishres.2025.107372","DOIUrl":"10.1016/j.fishres.2025.107372","url":null,"abstract":"<div><div>Many fish species caught in recreational fisheries are released after capture due to regulations or fisher preference. In regions where large proportions of the catch are released, assessing ‘post-capture survival’ (PCS) is essential for comprehensive stock assessments and sustainable management. Here we present a case study for the development and application of a simple semi-quantitative approach to provide ‘post-capture body condition’ (PCC) indices using visual assessment in a coastal boat-based angling fishery, providing an informative descriptive precursor to quantifying actual PCS. Assessment indices and scores were developed from published information on factors shown to affect PCS of the focal species, so that estimated PCC was indirectly related to survival. More than 2000 individuals of 18 species were visually assessed by trained observers prior to release and overall PCC estimated. For commonly released species, estimates of PCC were highly variable and primarily determined by the degree of observed barotrauma. Estimated PCC was highest for Bluespotted Flathead, Mahi Mahi, Yellowtail Kingfish and Pearl Perch, lower for Grey Morwong and Snapper, and lowest for Teraglin. For Grey Morwong and Teraglin, increasing capture depth also significantly decreased PCC. Body length and water temperature did not have a significant effect on the PCC of any species. Whilst true survival of each individual is not determined here, the approach described provides an efficient basic assessment of PCC which combines multiple factors into a single estimate providing an important descriptive precursor to inform future work using direct approaches to quantify actual PCS. Such studies may also improve the utility of this metric by defining the functional relationship between PCC scores and PCS. This approach can be easily implemented as a preliminary standard practice where there is an intention for PCS data to be collected to evaluate the effectiveness of management, or for stock assessments to account for indirect fishing mortality.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107372"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of haul size on price in the demersal seine fishery in Norway and implications for management 挪威底网渔业中拖网大小对价格的影响及其对管理的影响
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107381
Katrine Eriksen, Geir Sogn-Grundvåg
{"title":"The effect of haul size on price in the demersal seine fishery in Norway and implications for management","authors":"Katrine Eriksen,&nbsp;Geir Sogn-Grundvåg","doi":"10.1016/j.fishres.2025.107381","DOIUrl":"10.1016/j.fishres.2025.107381","url":null,"abstract":"<div><div>The high catch efficiency of demersal seine nets has made them widely used in commercial fisheries globally. However, when fish density is high, these nets can result in very large catches, leading to poor fish welfare and quality and the loss of dead and injured fish if the net bursts. Animal welfare is a public good closely tied to product quality in fisheries. Therefore, it is anticipated that smaller hauls will be encouraged through price premiums for high-quality fish in the ex-vessel market. Market failures, including information asymmetry regarding fish welfare and quality and imperfect competition, impede quality-based pricing and diminish economic incentives for reducing haul sizes. With recent proposals to regulate haul sizes in this fishery, estimating the price premium for smaller hauls has become relevant for management. In the case of command-and-control measures, this will contribute to the cost-benefit analysis. Regulations aimed at correcting market failures can also be considered. Either intervention will only be implemented if the social cost of inadequate fish welfare exceeds the social benefit of large catches. In a study of the Norwegian cod fishery, a mixed-effect model is applied to data on haul sizes for Atlantic cod catches and prices while accounting for other factors that may influence prices, including seller and buyer heterogeneity. The findings reveal only a weak link between haul sizes and prices, suggesting the presence of market failures. The discussion covers social costs and benefits and outlines potential management implications.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107381"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparison of survey designs for marine benthic invertebrate sampling 海洋底栖无脊椎动物抽样调查设计的比较
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107384
Adam J. Delargy, Kyle S. Cassidy , Amber D. Lisi, Kevin D.E. Stokesbury
{"title":"A comparison of survey designs for marine benthic invertebrate sampling","authors":"Adam J. Delargy,&nbsp;Kyle S. Cassidy ,&nbsp;Amber D. Lisi,&nbsp;Kevin D.E. Stokesbury","doi":"10.1016/j.fishres.2025.107384","DOIUrl":"10.1016/j.fishres.2025.107384","url":null,"abstract":"<div><div>Marine organism survey designs can take a wide range of forms, and an important decision is how to spread limited sampling effort over space. This study compared systematic, simple random, stratified random, and a sophisticated spatially balanced technique called generalized random tessellation stratified (GRTS), sampling designs. The comparison used data from an established optical survey of Atlantic sea scallop (<em>Placopecten magellanicus</em>) populations in the northwest Atlantic Ocean. Two field studies showed limited differences in the performance of simple random and systematic sampling, despite considerable differences in sample sizes. Simulations expanded this study considerably by analyzing six sampling techniques over a greater range of scallop populations. The six techniques were simple random sampling, three variants of stratified random sampling that differed in their methods for assigning stations to strata, systematic sampling, and GRTS sampling. The performance of each technique was assessed through the mean scallop density estimate and the variance of this mean. All techniques were accurate throughout, although all variants of the stratified random technique were inaccurate and imprecise in one small area with low sample size. The stratified random and simple random techniques were among the best at closely estimating the true precision. The GRTS and systematic techniques were highly accurate but weaker at estimating true precision. These results highlight that all techniques have tradeoffs and show that optimal statistical survey design is highly specific to the spatial nature of the species being targeted.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107384"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Curbing severe hunger and the prevalence of food insecurity: Is relying on the world fishing industry sufficient and ecologically sustainable? 遏制严重饥饿和普遍的粮食不安全:依靠世界捕鱼业是否足够和在生态上可持续?
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107375
Muhamadu Awal Kindzeka Wirajing , Germain Stephane Ketchoua , Roger Tsafack Nanfosso , Armand Mboutchouang Kountchou
{"title":"Curbing severe hunger and the prevalence of food insecurity: Is relying on the world fishing industry sufficient and ecologically sustainable?","authors":"Muhamadu Awal Kindzeka Wirajing ,&nbsp;Germain Stephane Ketchoua ,&nbsp;Roger Tsafack Nanfosso ,&nbsp;Armand Mboutchouang Kountchou","doi":"10.1016/j.fishres.2025.107375","DOIUrl":"10.1016/j.fishres.2025.107375","url":null,"abstract":"<div><div>Food insecurity remains a critical global challenge and a key focus of Sustainable Development Goal 2 (SDG2), which aims to eradicate hunger, enhance nutrition, and promote sustainable agriculture. This study examine how greenhouse gas (GHG) emissions affect fisheries sector’s impact on food insecurity. Using panel data from 123 countries spanning 2000–2020, the analysis employs robust econometric approaches, including the instrumental variable two-stage least squares (IV-2SLS), smoothed instrumental variables quantile regression (SIVQR), and system generalized method of moments (GMM). The findings reveal that fisheries production significantly reduces undernourishment prevalence across diverse continents, income levels, and geographical contexts. Key dimensions of food security, availability, accessibility, stability, and utilization are enhanced through increased fisheries production, as evidenced by improved dietary energy adequacy, protein supply, caloric intake, and access to safe drinking water. However, GHG emissions negatively influence fish production and its capacity to mitigate food insecurity, underscoring the need for emission reductions to maximize the sector's benefits. In North America, a critical GHG emission reduction threshold of 1.125 is identified to neutralize adverse impacts, highlighting the urgency of addressing environmental concerns. Policy recommendations emphasize the adoption of sustainable fisheries management practices, including regulated fishing quotas, habitat protection, and prevention of overfishing. Investments in clean technologies, such as energy-efficient fishing vessels and renewable energy integration, are essential for reducing the carbon footprint of the fisheries sector. Strengthening climate adaptation strategies, such as early warning systems, diversified livelihoods for fishing communities, and advanced research, is critical for resilience. Additionally, integrating fisheries into broader national and regional food security strategies and fostering international collaboration, particularly under frameworks like the Paris Agreement, can further enhance sustainable food production.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107375"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Both environmental conditions and fisher behaviour influence the occurrence of shark and odontocete depredation on the longline catch in New Caledonia 在新喀里多尼亚,环境条件和渔民行为都影响着鲨鱼和齿鲨对延绳钓渔获物的捕食
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107378
Margaux Mollier , Solène Derville , Camille Mazé , Auriane Virgili , Clara Lerebourg , François Prioul , Paul Hamer , Malo Hosken , Sam McKechnie , Paul Tixier
{"title":"Both environmental conditions and fisher behaviour influence the occurrence of shark and odontocete depredation on the longline catch in New Caledonia","authors":"Margaux Mollier ,&nbsp;Solène Derville ,&nbsp;Camille Mazé ,&nbsp;Auriane Virgili ,&nbsp;Clara Lerebourg ,&nbsp;François Prioul ,&nbsp;Paul Hamer ,&nbsp;Malo Hosken ,&nbsp;Sam McKechnie ,&nbsp;Paul Tixier","doi":"10.1016/j.fishres.2025.107378","DOIUrl":"10.1016/j.fishres.2025.107378","url":null,"abstract":"<div><div>Large marine predators feeding on fish caught on fishing gear, a behaviour termed “depredation”, frequently results in conflicts with significant ecological and socio-economic impacts. While adjusting fishing practices through spatio-temporal avoidance of depredation may offer an expedient and cost-effective mean of mitigating the conflict, its effectiveness is often limited by a poor understanding of the underlying drivers. Using 10 years of logbook data and generalised additive models, our study identified the environmental and operational factors influencing shark and odontocete (toothed whales) depredation on tuna catches of the New Caledonian longline fishery. Odontocete depredation was primarily driven by environmental factors such as sea surface temperature, bathymetry and sea surface height, whereas shark depredation was primarily driven by operational factors like the number of hooks set and soaking time. The findings suggest that depredation is more likely to occur in areas where predator natural distribution overlaps with fishing activities, and when fishers increase opportunities for predators to locate their gear. Targeted strategies, such as reducing soaking time to under 12 hours or limiting hooks per set to fewer than 1,750, could halve the likelihood of depredation, offering practical solutions to mitigate these interactions. Modelled predictions of the spatio-temporal patterns of depredation show well-delineated hotspots of odontocete depredation that can inform avoidance strategies developed by fishers. However, large variations in depredation probabilities among vessels suggest that additional factors related to individual fishers’ behaviours, or with intrinsic features of vessels influencing their detectability, need further investigation to fully understand depredation mechanisms.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107378"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of Argentina's fishing activity in areas susceptible to sea turtle bycatch in the Southwestern Atlantic 阿根廷在西南大西洋易受海龟误捕影响地区的捕鱼活动特征
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-22 DOI: 10.1016/j.fishres.2025.107365
Sofía Jones , Esteban E. Nieto , David G. Vera , Jorge D. Williams , Federico P. Kacoliris , Laura Prosdocimi
{"title":"Characterization of Argentina's fishing activity in areas susceptible to sea turtle bycatch in the Southwestern Atlantic","authors":"Sofía Jones ,&nbsp;Esteban E. Nieto ,&nbsp;David G. Vera ,&nbsp;Jorge D. Williams ,&nbsp;Federico P. Kacoliris ,&nbsp;Laura Prosdocimi","doi":"10.1016/j.fishres.2025.107365","DOIUrl":"10.1016/j.fishres.2025.107365","url":null,"abstract":"<div><div>The high biological productivity of the Northern Argentine Continental Shelf supports several fisheries and constitutes a food source for three threatened sea turtle species: <em>Chelonia mydas</em>, <em>Caretta caretta</em> and <em>Dermochelys coriacea</em>. This study characterizes, for the first time, Argentine fishing activity in areas susceptible to bycatch of these species. The fisheries statistics database (2020–2023), provided by the National Fishing Agency, was analyzed to identify and characterize the vessels and fisheries, quantify fishing effort, and analyze its variation across different zones and seasons. Approximately 240 vessels with diverse characteristics operate in these important areas. The variation in fishing effort among vessels suggests that not all vessels have the same level of impact on turtles. The overlap between fishing zones and susceptible areas, along with vessel numbers and landed tons, indicates that fresh fleet vessels 6.9–26.9 m in length are the most relevant, particularly those around 22.8 m. Fisheries overlapping with sea turtles are mainly demersal multi-species, especially those using bottom trawls and gillnets. These should be considered a priority in future bycatch assessments. Due to the lack of on-board observers across the Argentinean fleet and data collection challenges, these findings provide essential guidance for future bycatch studies. The high variability in fishing effort emphasizes targeting monitoring on the most impactful vessels and adapting bycatch rate calculations accordingly. Given that overlapping fishing areas fall under various administrative jurisdictions, coordinated efforts are crucial for effective bycatch monitoring and conservation.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"285 ","pages":"Article 107365"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the consequences of introducing alternative fishing gear in an effort-limited fishery: Casita utilization in the spiny lobster, Panulirus argus, fishery in Florida 探索在努力有限的渔业中引入替代渔具的后果:卡西塔在佛罗里达州多刺龙虾中的利用
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-04-21 DOI: 10.1016/j.fishres.2025.107377
Gabrielle F. Renchen, Erica P. Ross, Thomas R. Matthews
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