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首页> 外文期刊>ICES Journal of Marine Science >Fishery-induced changes in Norwegian red king crab (Paralithodes camtschaticus) reproductive potential
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Fishery-induced changes in Norwegian red king crab (Paralithodes camtschaticus) reproductive potential

机译：渔业引起的挪威红帝王蟹（Paralithodes camtschaticus）繁殖潜力的变化

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摘要

The introduced red king crab (Paralithodes camtschaticus) in the Barents Sea supports a valuable fishery in northern Norway. In this paper, I examine the effect of the increased harvest rate and the recently added female quota on the potential egg production of the stock. The size ranges of males and females in the period 1995 - 2011 were recorded, and estimated stock abundance of ovigerous females and established individual fecundity parameters from 2000-2007 were used to assess the reproductive potential of the stock from 1995-2011. The upper size ranges of males and females decreased throughout the period studied, presumably mainly due to fishing. The change in size composition among ovigerous females and functional mature males, and the reduced mean individual fecundity in the stock seem to have had a negative effect on the potential egg production of the stock.
机译：在巴伦支海引进的红色帝王蟹（Paralithodes camtschaticus）为挪威北部的珍贵渔业提供了支持。在本文中，我研究了增加的收获率和最近增加的雌性配额对种群潜在产蛋量的影响。记录了1995-2011年期间雄性和雌性的大小范围，并使用2000-2007年估计的雌雄虫的种群数量和建立的个体繁殖力参数来评估1995-2011年种群的繁殖潜力。在整个研究期间，男性和女性的最大体型范围有所下降，大概主要是由于捕鱼。雌雄同体和机能成熟的雄性个体的大小组成变化以及种群中平均个体繁殖力降低似乎对种群的潜在产蛋量产生了负面影响。

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