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首页> 外文期刊>Russian journal of marine biology >The Status of the Stock and the Current Fishery for the Atka Mackerel, Pleurogrammus monopterygius (Pallas, 1810),in the Olyutorsky-Navarin Area, Bering Sea
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The Status of the Stock and the Current Fishery for the Atka Mackerel, Pleurogrammus monopterygius (Pallas, 1810),in the Olyutorsky-Navarin Area, Bering Sea

机译：股票和当前的Atka Mackerel，Pleurographmus Monopterygius（Pallas，1810），在Olyutorsky-Navarin地区，Bering Sea

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The dynamics of the Atka mackerel stock in the Olyutorsky-Navarin area in 1994-2019 is inferred from bottom-trawl surveys, fishery statistics, open-access NOAA data, and the results of simulation by the method of virtual population analysis. After the period of low stock in the mid-1990s, the abundance of the Atka mackerel group in the area increased sharply to a maximum in 2006-2008, when the spawning biomass was estimated at approximately 9500 t and the fishery biomass at 14 000 t. In 2008, the stock showed a tendency to decrease; by 2013, the spawning stock decreased to 3600 t and the fishery stock to 5600 t; subsequently, there was a period of stabilization at a low level with a slight tendency to further reduction. One of the possible causes of the sharp increase in the Atka mackerel stock in the 2000s could be the increased transport of juveniles of strong year-classes from the main spawning grounds off the Aleutian Islands with their subsequent settlement on available parts of the shelf off Cape Olyutorsky. The development of the Atka mackerel fishery in the Olyutorsky-Navarin area in 1994-2019 had a pattern similar in general to the stock dynamics. Until 1995, no more than an average of 100 t were caught per year; in 2006-2010, the average annual catch increased to 790 t; in 2011-2015, it increased to 1150 t; and in 2016-2019, the catch again decreased to 950 t. Due to the emerging trend of a general reduction in the stock of the Aleutian population, this low level of catches in the Olyutorsky-Navarin area is expected to continue in the coming years.
机译：1994 - 2019年奥尔杜沃斯斯基 - 纳瓦林地区ATKA鲭鱼股的动态由底部拖网调查，渔业统计，开放式NOAA数据以及虚拟人口分析方法的仿真结果推断。在20世纪90年代中期的低层股期后，当产卵生物质估计在大约9500t和14 000 t的渔业生物量估计时，该地区中ATKA鲭鱼组的丰富急剧增加至最大值。 。 2008年，该股票表现出降低的趋势;到2013年，产量减少至3600吨，渔业库存达到5600吨;随后，在低水平的稳定期具有轻微倾向于进一步减少的趋势。 2000年代ATKA鲭鱼股票急剧增加的可能原因之一可能是从阿列丁群岛的主要产卵场从阿列丁群岛的主要产卵台上增加了少年阶级的运输，随后与斗篷的可用部件沉降Olyutorsky。 1994 - 2019年在Olyutorsky-Navarin地区的Atka Mackerel渔业的发展具有类似于库存动态的模式。直到1995年，每年没有超过100吨; 2006 - 2010年，平均年度捕捞量增加到790吨; 2011 - 2015年，它增加到1150吨;在2016 - 2019年，捕获再次下降至950吨。由于阿雷迪人群股票的一般减少了新兴趋势，奥莱杜沃斯基 - Navarin地区的这种低水平的捕捞量预计将在未来几年继续。

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