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首页> 外文期刊>ICES Journal of Marine Science >A brief history of lumpfishing, assessment, and management across the North Atlantic
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A brief history of lumpfishing, assessment, and management across the North Atlantic

机译:整个北大西洋的ump鱼,评估和管理的简史

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This report documents the fishery, assessment, and management of lumpfish (Cyclopterus lumpus) across its distribution range. Targeting lumpfish for their roe on a large scale began in the 1950s in Iceland and Norway and then in Canada in the 1970s and Greenland in the 1990s. When the fishery began, there were few regulations, but limits on vessel size, mesh size, number of nets, and length of the fishing season were gradually implemented over time. Worldwide landings have varied from ca. 2000 to 8000 tonnes of roe between 1977 and 2016. Iceland and Canada accounted for 80% of the landings until 2000. After 2013, Greenland and Iceland accounted for 94%. All countries except Iceland show a decreasing trend in the number of boats participating in the fishery, which is related to several factors: the monetary value of the roe, changes in the abundance of lumpfish, and increasing age of artisanal fishers. Each country has a different combination of data available for assessment from basic landings and fishing effort data to more detailed fishery independent survey indices of abundance. The management of total catch also differs, with an effort-controlled fishery in Iceland and Canada, a total allowable catch (TAC) per boat in Norway, and TAC per area in Greenland. Population abundance is above management targets in Iceland and Norway, but the status is less clear in Greenland and around Denmark/Sweden and appears to be depleted around Canada. Certification by the Marine Stewardship Council was instrumental in the adoption of a management plan in Greenland; however, benefits to the fishers remain unclear. Aspects surrounding the biology of lumpfish, which is poorly understood and requires investigation, include growth rate, natural mortality, and population differentiation. In addition, there is concern about the potential impacts that the recent escalation in production of lumpfish for use as cleaner fish in the aquaculture industry could have on the wild population.
机译:该报告记录了分布范围内的l鱼(Cyclopterus lumpus)的渔业,评估和管理。 1950年代开始在冰岛和挪威大规模针对l鱼瞄准鱼卵,然后在1970年代在加拿大,在1990年代在格陵兰。捕捞开始时,法规很少,但是随着时间的推移,逐渐限制了船只的尺寸,网眼尺寸,网的数量和捕鱼季节的长度。全球登陆量从在1977年至2016年之间,鱼籽的产量为2000吨至8000吨。到2000年,冰岛和加拿大占登陆量的80%以上。2013年之后,格陵兰和冰岛占了94%以上。除冰岛外,所有国家/地区的参与捕鱼活动的船只数量均呈下降趋势,这与几个因素有关:鱼籽的货币价值,l鱼丰度的变化以及个体渔民的年龄增加。每个国家都有不同的可评估数据组合,从基本着陆和捕捞努力数据到更详细的独立于渔业的调查丰度指数。总渔获量的管理也有所不同,冰岛和加拿大的渔获量由努力控制,挪威的每艘船总允许渔获量(TAC),格陵兰的每区域总渔获量。冰岛和挪威的人口数量超过了管理目标,但格陵兰和丹麦/瑞典周围的状况尚不十分清楚,加拿大各地的人口似乎已枯竭。海洋管理委员会的认证有助于格陵兰岛通过管理计划;但是,对渔民的利益尚不清楚。关于um​​p鱼生物学的方面,人们对此知之甚少,需要进行调查,其中包括生长率,自然死亡率和种群分化。此外,人们担心,最近用于水产养殖业用作清洁鱼的l鱼产量增加可能会对野生种群产生潜在影响。

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