{"title":"Sondu-Miriu河渔具:使用水平、偏好和选择性","authors":"B. Waswala-Olewe, James Okot Okuku, R. Abila","doi":"10.3126/HN.V15I0.11301","DOIUrl":null,"url":null,"abstract":"Artisan fishers of Osodo beach of Sondu-Miriu River (Kenya) use both traditional and modern gear to catch riverine fish species. This study, conducted between August 2006 and July 2007, revealed that fishers most predominantly used gear were the seine nets (42%) and the gill nets (28%). Other used gear include long lines (14%); fish baskets (9%) and weirs (7%). The selectivity of this fishing gear varied with the developmental stages of the fish to be caught. Non-selective gear caught both targeted and non-targeted species irrespective of size and development stages. The ranking of selective to non-selective fishing gear was the long lines, fish baskets, weirs, gill nets and beach nets at 2%, 11%, 16%, 24% and 32%, respectively. The non-selective fishing gear may have negative impacts on the riverine fish by reducing spawning biomass and lacustrine fish recruitment. These findings underscore the need for greater appreciation, research, and adaptation of appropriate fishing gear to ensure sustainable utilization of the riverine fisheries in Sondu-Miriu River DOI: http://dx.doi.org/10.3126/hn.v15i0.11301 HYDRO Nepal Journal Journal of Water Energy and Environment Volume: 15, 2014, July Page: 82-86","PeriodicalId":117617,"journal":{"name":"Hydro Nepal: Journal of Water, Energy and Environment","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Fishing Gear in the Sondu-Miriu River: Level of Use, Preference and Selectivity\",\"authors\":\"B. Waswala-Olewe, James Okot Okuku, R. Abila\",\"doi\":\"10.3126/HN.V15I0.11301\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Artisan fishers of Osodo beach of Sondu-Miriu River (Kenya) use both traditional and modern gear to catch riverine fish species. This study, conducted between August 2006 and July 2007, revealed that fishers most predominantly used gear were the seine nets (42%) and the gill nets (28%). Other used gear include long lines (14%); fish baskets (9%) and weirs (7%). The selectivity of this fishing gear varied with the developmental stages of the fish to be caught. Non-selective gear caught both targeted and non-targeted species irrespective of size and development stages. The ranking of selective to non-selective fishing gear was the long lines, fish baskets, weirs, gill nets and beach nets at 2%, 11%, 16%, 24% and 32%, respectively. The non-selective fishing gear may have negative impacts on the riverine fish by reducing spawning biomass and lacustrine fish recruitment. These findings underscore the need for greater appreciation, research, and adaptation of appropriate fishing gear to ensure sustainable utilization of the riverine fisheries in Sondu-Miriu River DOI: http://dx.doi.org/10.3126/hn.v15i0.11301 HYDRO Nepal Journal Journal of Water Energy and Environment Volume: 15, 2014, July Page: 82-86\",\"PeriodicalId\":117617,\"journal\":{\"name\":\"Hydro Nepal: Journal of Water, Energy and Environment\",\"volume\":\"9 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-10-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hydro Nepal: Journal of Water, Energy and Environment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3126/HN.V15I0.11301\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydro Nepal: Journal of Water, Energy and Environment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3126/HN.V15I0.11301","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
肯尼亚Sondu-Miriu河Osodo海滩的工匠渔民使用传统和现代的工具来捕捞河里的鱼类。在2006年8月至2007年7月期间进行的这项研究显示,渔民最主要使用的渔具是围网(42%)和刺网(28%)。其他使用的齿轮包括长绳(14%);鱼篮(9%)和堰(7%)。这种渔具的选择性随所捕鱼类的发育阶段而变化。非选择性渔具捕获目标和非目标物种,不论其大小和发育阶段。选择性渔具排在非选择性渔具之前的依次是长线渔具、鱼筐渔具、堰网渔具、刺网渔具和滩网渔具,分别占2%、11%、16%、24%和32%。非选择性渔具可能通过减少产卵生物量和湖泊鱼类的补充而对河流鱼类产生负面影响。这些研究结果强调需要对适当的渔具进行更多的评估、研究和调整,以确保Sondu-Miriu河河流渔业的可持续利用DOI: http://dx.doi.org/10.3126/hn.v15i0.11301 HYDRO Nepal Journal Journal of Water Energy and Environment卷:15,2014年7月页:82-86
Fishing Gear in the Sondu-Miriu River: Level of Use, Preference and Selectivity
Artisan fishers of Osodo beach of Sondu-Miriu River (Kenya) use both traditional and modern gear to catch riverine fish species. This study, conducted between August 2006 and July 2007, revealed that fishers most predominantly used gear were the seine nets (42%) and the gill nets (28%). Other used gear include long lines (14%); fish baskets (9%) and weirs (7%). The selectivity of this fishing gear varied with the developmental stages of the fish to be caught. Non-selective gear caught both targeted and non-targeted species irrespective of size and development stages. The ranking of selective to non-selective fishing gear was the long lines, fish baskets, weirs, gill nets and beach nets at 2%, 11%, 16%, 24% and 32%, respectively. The non-selective fishing gear may have negative impacts on the riverine fish by reducing spawning biomass and lacustrine fish recruitment. These findings underscore the need for greater appreciation, research, and adaptation of appropriate fishing gear to ensure sustainable utilization of the riverine fisheries in Sondu-Miriu River DOI: http://dx.doi.org/10.3126/hn.v15i0.11301 HYDRO Nepal Journal Journal of Water Energy and Environment Volume: 15, 2014, July Page: 82-86