Fisheries Management and Ecology最新文献_第10页

Acoustic seal deterrents in mitigation of human–wildlife conflicts in the whitefish fishery of the River Iijoki in the northern Baltic Sea area 在波罗的海北部地区的艾伊霍基河白鲑渔业中用声波海豹威慑手段缓解人与野生动物之间的冲突

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2024-01-03 DOI: 10.1111/fme.12680

Lari Veneranta, Topi K. Lehtonen, Esa Lehtonen, Petri Suuronen

引用次数: 0

Dual-method survey of recreational fishing for guitarfishes in Southern and Southeastern Brazil 巴西南部和东南部吉他鱼休闲捕鱼双重方法调查

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-28 DOI: 10.1111/fme.12678

Thomaz Stefani Fuzetti, Patricia Charvet, Natascha Wosnick

引用次数: 0

A longline survey for spurdog distribution and life history along the Norwegian coast 沿挪威海岸延绳钓调查鳕鱼的分布和生活史

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-21 DOI: 10.1111/fme.12676

Hector Andrade, Tine Nilsen, Tone Vollen, Alf Harbitz, Claudia Junge, Ole Thomas Albert

{"title":"A longline survey for spurdog distribution and life history along the Norwegian coast","authors":"Hector Andrade, Tine Nilsen, Tone Vollen, Alf Harbitz, Claudia Junge, Ole Thomas Albert","doi":"10.1111/fme.12676","DOIUrl":"10.1111/fme.12676","url":null,"abstract":"To improve spatiotemporal data collection and inform future spurdog Squalus acanthias stock assessment, a new dedicated longline survey was initiated in 2021 in coastal waters of southern Norway. The survey comprised a mixture of randomly predefined stations to facilitate unbiased abundance estimates and supplementary stations including informant putative hotspots. During 25 survey days in autumn 2021, 287 stations were sampled, of which 280 were categorized as “satisfactory” in terms of gear quality deployment. Spurdog catches (n = 954) were more abundant in southeast coastal shallower waters (19–150 m). No length, sex, or maturity stratified schooling behavior was found with increasing catches. Females were more abundant and larger than males, but males were older. Growth and reproduction parameters were within ranges reported for the stock. Our results provide valuable input for spurdog survey designs with regards to optimizing boat time, location of stations, and biological sampling protocols. The survey provides important data for monitoring the spurdog stock and other data-limited species, especially considering the newly re-opened spurdog fishery but also to study possible future effects of climatic changes on spurdog distribution.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12676","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138951963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors associated with Paddlefish (Polyodon spathula) restoration success in Oklahoma 俄克拉荷马州桨鱼（Polyodon spathula）恢复成功的相关因素

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-21 DOI: 10.1111/fme.12677

Ryan A. Gary, James M. Long, Brian T. Eachus, Andrew R. Dzialowski, Jason D. Schooley

{"title":"Factors associated with Paddlefish (Polyodon spathula) restoration success in Oklahoma","authors":"Ryan A. Gary, James M. Long, Brian T. Eachus, Andrew R. Dzialowski, Jason D. Schooley","doi":"10.1111/fme.12677","DOIUrl":"10.1111/fme.12677","url":null,"abstract":"The Paddlefish (Polyodon spathula) has been extirpated from portions of its native range due to anthropogenic habitat degradation and fragmentation, most notably the impoundment of rivers. To mitigate some of these losses in Oklahoma, Paddlefish have been stocked into reservoirs throughout the state, with variable success in establishing self-sustaining populations. Two factors thought to contribute to success of Paddlefish stocking are spawning substrate and prey availability, which were quantified in six reservoirs and nine reservoir tributaries. Side-scan sonar and supervised classification of aerial imagery were used to classify 4517-ha of river substrate upstream of the river-reservoir interface in reservoir tributaries. Zooplankton community structure, water clarity, and nutrient availability were also assessed in the same reservoirs and tributaries. One tributary had suitable spawning substrate (>40%), and the rest had minimal (<1.5%), which suggested that availability of suitable spawning substrate was not directly correlated with Paddlefish stocking success. Reservoirs with self-sustaining Paddlefish populations had higher abundance of large zooplankton (copepods and cladocerans) than reservoirs without a reproducing population. Notably, tributaries associated with Lake Texoma, the one known example of failed restoration, were much more turbid than other rivers. We conclude that abiotic factors such as water clarity may contribute more to variable recruitment than spawning substrate or zooplankton abundance by mediating foraging success of Paddlefish post-larvae.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138952441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Successes and challenges of fisheries governance in an African wetland fishery: A Case study of fishing camps on the Kafue flats of Zambia 非洲湿地渔业管理的成功与挑战：赞比亚卡富埃滩涂捕鱼营地案例研究

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-16 DOI: 10.1111/fme.12673

Sililo Agness Musutu, Daniel Nyamphande Phiri

{"title":"Successes and challenges of fisheries governance in an African wetland fishery: A Case study of fishing camps on the Kafue flats of Zambia","authors":"Sililo Agness Musutu, Daniel Nyamphande Phiri","doi":"10.1111/fme.12673","DOIUrl":"10.1111/fme.12673","url":null,"abstract":"During the last three decades, the Kafue flats floodplain fishery on the Kafue River in Zambia has been increasingly exploited due to more individuals settling in the area and seasonal travellers gaining access to the fishery during flood season. Despite successful governance arrangements that effectively regulated access to fish stocks for many generations, evidence shows that these arrangements are not working as new entrants continue to gain access and overexploit remaining fish stocks. Managing new entrants is a crucial factor in achieving sustainable use. Our objective was to gain an understanding of fisheries governance on the Kafue floodplain fishery, particularly in Shimungalu and Nyimba fishing villages, where different levels of government support for co-management structures produced different outcomes. Our research approach was qualitative, by utilising the snowball sampling technique and incorporating interviews and documentary analysis. Our aim was to investigate discrepancies in the efficacy of resource access and utilisation in the two fishing camps, and to offer recommendations on how governance systems for the fishery could be refined to improve their efficacy. This comparative analysis of the two fishing communities, which share numerous characteristics with various small-scale fisheries in Africa, provides an opportunity to understand how polycentric governance offers a solution by enabling other organisations to fill capacity gaps faced by relevant authorities. The lessons derived from this analysis offer valuable insights into enhancing fisheries governance and future research directions in Zambia, and Africa at large.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138717290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Estimating recreational trap-fishing effort for crayfish from zig-zag line transects, drone surveys and enforcement surveys 估计休闲陷阱捕捞小龙虾的努力从曲折线横断面，无人机调查和执法调查

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-04 DOI: 10.1111/fme.12675

Göran Sundblad, Annica de Groote, Peter Lundquist, Mattias Larsson, Rasmus Linderfalk, Fredrik Larson

引用次数: 0

To pool or not to pool data? Applying a generalized depletion model to assess American eel elver Anguilla rostrata fisheries from multiple rivers in Nova Scotia, Canada 汇集还是不汇集数据?应用广义耗竭模型对加拿大新斯科舍省多条河流中的美洲鳗、鳗、鳗鲡渔业进行评估

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-04 DOI: 10.1111/fme.12674

Yu-Jia Lin, Brian M. Jessop

{"title":"To pool or not to pool data? Applying a generalized depletion model to assess American eel elver Anguilla rostrata fisheries from multiple rivers in Nova Scotia, Canada","authors":"Yu-Jia Lin, Brian M. Jessop","doi":"10.1111/fme.12674","DOIUrl":"10.1111/fme.12674","url":null,"abstract":"Spatial scales are important for examining health of exploited fishery stocks and guiding management actions. However, information about the optimal spatial scale is still unclear for assessment of transit fisheries, such as elver fisheries of the American eel Anguilla rostrata. We applied a generalized depletion model to assess catch and effort data from three nearby rivers (within 50 km) to test the hypothesis that modeling on pooled and separate data from nearby rivers would give similar estimates of abundance and exploitation rate. Overall, pooling data from rivers within 50 km did not result in large differences (<20% in relative difference) in estimates of abundance and exploitation rate with close mean abundance estimates and similar temporal trends in abundance, exploitation rate, and relative escapement. Pooling nearby river systems can greatly reduce modeling effort, at the cost of ignoring fine-scale variability in elver recruitment and having coarser spatial scale for the management. When only an index of annual recruitment and exploitation rate are of interest, pooling data may be practical from different locations up to 50 km.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138536134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Community size-spectra applied to recreational freshwater fisheries in Puerto Rican reservoirs 社区规模光谱应用于波多黎各水库的休闲淡水渔业

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-12-01 DOI: 10.1111/fme.12671

Brent A. Murry, María de Lourdes Olmeda, Craig Lilyestrom, Daniel S. Adams, Katherine Adase, Miguel García-Bermudez

引用次数: 0

Influence of four hook types across four hook removal tools, including bare hands, on the effectiveness of hook removal and reflex impairment of Bluegill (Lepomis macrochirus) captured from a lake in Eastern Ontario 四种钩类型对四种除钩工具(包括徒手)对从安大略省东部一个湖泊捕获的蓝鳃鱼(Lepomis macrochirus)除钩效果和反射损伤的影响

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-29 DOI: 10.1111/fme.12672

Jeremy Hussey, Luc LaRochelle, Andy J. Danylchuk, Sascha Clark Danylchuk, Benjamin W. C. Cooke, Joshua T. H. Cooke, Cameron J. A. Cooke, Steven J. Cooke

{"title":"Influence of four hook types across four hook removal tools, including bare hands, on the effectiveness of hook removal and reflex impairment of Bluegill (Lepomis macrochirus) captured from a lake in Eastern Ontario","authors":"Jeremy Hussey, Luc LaRochelle, Andy J. Danylchuk, Sascha Clark Danylchuk, Benjamin W. C. Cooke, Joshua T. H. Cooke, Cameron J. A. Cooke, Steven J. Cooke","doi":"10.1111/fme.12672","DOIUrl":"10.1111/fme.12672","url":null,"abstract":"Hook removal devices have been developed to enable rapid release of angled fish, yet little research has evaluated their effectiveness and potential for injury among hook types. We compared the performance of hook removal tools and bare hands with four hook types on freshwater Lepomid sunfish. Dehooking performance was assessed using hook removal time, unhooking difficulty, degree of tissue damage at the hooking location, and immediate reflex impairment. Unhooking difficulty was positively related to hooking depth. Unhooking difficulty was lowest for hemostats and the mechanical dehooking device; however, the mechanical dehooking device caused the largest tearing of mouth tissue. Unhooking difficulty was the main driver for hook removal time, tissue tear length, and overall reflex impairment. Hooks that were harder to remove caused higher reflex impairment. Hook type had little influence on the effectiveness of hook removal tools, although circle hooks were more difficult to remove and caused greater injury when using tools. Although use of hook removal tools can be beneficial for fish that are released, more research is needed on more species targeted by recreational anglers, and more hook removal tools. We suggest that hemostats should be used to remove hooks from fish to reduce unhooking difficulty, tissue tears, long air exposure, and thereby to increase the welfare of the fish.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"32 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12672","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138536150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial and temporal trends in the relative abundance of Caspian sturgeon during 2006–2022 2006-2022年里海鲟鱼相对丰度的时空变化趋势

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-21 DOI: 10.1111/fme.12668

Hasan Fazli, Shahram Abdolmaleki, Farhad Kaymaram, Mohammad Reza Behrouz Khoshghalb

{"title":"Spatial and temporal trends in the relative abundance of Caspian sturgeon during 2006–2022","authors":"Hasan Fazli, Shahram Abdolmaleki, Farhad Kaymaram, Mohammad Reza Behrouz Khoshghalb","doi":"10.1111/fme.12668","DOIUrl":"10.1111/fme.12668","url":null,"abstract":"We used the bycatch of Caspian sturgeon to quantify the species composition, length structure, spatial and temporal distribution, temporal dynamics of relative abundance (indexed as catch-per-unit-effort, CPUE), effects of fingerlings released, and to forecast future sturgeon stock status. Dynamic factor analysis of temporal changes in species CPUE was used to quantify relationships to environmental variables (sea surface temperature, chlorophyll-a, sea surface level, and river discharge) during 2006–2022. We found that the Guilan subarea had the lowest relative abundance and differed from all other subareas. Fish abundance was highest in October and November, particularly in Mazandaran and Golestan coastal waters. Relative fish abundance declined significantly over time. Acipenser persicus was the most abundant species, followed by Aciperser gueldenstaedtii, Aciperser stellatus, Aciperser nudiventris, and Huso huso. The annual number of fingerlings released decreased during 2000–2021. Over the years, environmental variables such as sea surface level, sea surface temperature, and chlorophyll-a showed different trends, with sea surface temperature generally increasing, chlorophyll-a generally decreasing, sea surface level decreasing nearly linearly, and river discharge varying erratically without a trend in the southern Caspian Sea during 2006–2022. The relative abundance of all species decreased and was significantly related to sea surface level. Fish abundance was forecasted to decline by 2025, as sea surface temperature increases and sea surface level decreases. Illegal, unreported, and unregulated (IUU) harvest of sturgeon must be effectively regulated to ensure the survival and recovery of sturgeon populations in the Caspian Sea.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138536170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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