Fisheries Management and Ecology最新文献_第9页

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":"https://doi.org/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":"57 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","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":"","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

Stable mean trophic level and decreasing fish size in Central Amazonian fishery landings 中亚马逊流域渔业登陆区平均营养水平稳定，鱼类尺寸减小

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-20 DOI: 10.1111/fme.12667

Octavio Ferreira de Matos, Diego Valente Pereira, Giulia Cristina dos Santos Lopes, Marcos de Almeida Mereles, Vandick da Silva Batista, Carlos Edwar de Carvalho Freitas, Flávia Kelly Siqueira-Souza

引用次数: 0

Movements of pikeperch (Sander lucioperca), roach (Rutilus rutilus) and bream (Abramis brama) in a boreal lake, Lake Vesijärvi, Finland 芬兰Vesijärvi湖北部湖泊中棘鲈(Sander lucioperca)、蟑螂(Rutilus Rutilus)和鲷鱼(Abramis brama)的活动

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-15 DOI: 10.1111/fme.12670

Matti Kotakorpi, Mikko Olin, Jukka Ruuhijärvi, Katja Kulo, Jyrki Lappalainen

{"title":"Movements of pikeperch (Sander lucioperca), roach (Rutilus rutilus) and bream (Abramis brama) in a boreal lake, Lake Vesijärvi, Finland","authors":"Matti Kotakorpi, Mikko Olin, Jukka Ruuhijärvi, Katja Kulo, Jyrki Lappalainen","doi":"10.1111/fme.12670","DOIUrl":"10.1111/fme.12670","url":null,"abstract":"Movements of common fish species in large lakes that are inadequately known is challenging for fisheries management. Pikeperch (Sander lucioperca) (n = 478; mean length = 42.1 cm; SD = 7.0), bream (Abramis brama) (n = 775; mean length = 31.1 cm; SD = 5.3) and roach (Rutilus rutilus) (n = 939; mean length = 21.4 cm; SD = 2.0) were marked with individual T-anchor tags to investigate movements in Lake Vesijärvi, a large lake situated in southern Finland consisting of several basins and managing by multiple entities. All species moved between basins, but only rarely moved outside tagging areas. The recapture rate of pikeperch was higher than roach and bream. Tagged fish consistently crossed municipality borders and water ownership units, thereby forming shared stocks, which underlined the importance of cooperation in lake restoration and a need to unite fragmented water ownership. Management of fisheries for cyprinid fishes could be more efficient if fishing targeted the most suitable areas without considering restrictions due to fragmented water ownership. Tagging data provided information on which parts of a large lake should be subjected to uniform pikeperch fisheries management. The importance of other species catch varied between different parts of the lake, thereby requiring different fishing regulations. Tagging data on common fish species provided valuable information on fish movements to support spatially explicit fisheries management.","PeriodicalId":50444,"journal":{"name":"Fisheries Management and Ecology","volume":"31 2","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fme.12670","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138543358","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

Baited remote underwater video stations as a potential tool for assessing coastal rocky fishes in Chile 作为评估智利沿海岩礁鱼类潜在工具的有饵远程水下视频站

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-13 DOI: 10.1111/fme.12665

Alejo J. Irigoyen, Andrés Flores, Santiago Gacitúa, Pablo Merlo, Rodrigo Wiff, T. Mariella Canales

引用次数: 0

Cover 封面

IF 2 3区农林科学

Fisheries Management and Ecology Pub Date : 2023-11-10 DOI: 10.1111/fme.12669

引用次数: 0