王迎宾,刘群

• 1:中国海洋大学水产学院
• 2:中国海洋大学水产学院 山东青岛266003
• 3:山东青岛266003

摘要(Abstract)：

为探讨鱼类自然死亡率参数 ,文中讨论了 1种通过资源量和渔获量数据估算鱼类自然死亡率 (M)的方法。蒙特卡罗模拟分析显示当资源量的白色噪音 ,即变异系数 (CV)水平小于大约 10 %时自然死亡率的估计值基本上是准确的 ;捕捞死亡率的变化对自然死亡率估计的影响不大。文中构造了长寿命自然死亡率小和短寿命自然死亡率大的 2个鱼类种群 ,模拟结果表明这种方法更适用于寿命短而自然死亡率大的种群。另外该方法在黄海鱼 (Engraulisjaponicus)渔业数据上的应用同样得到了良好的结果。

关键词(KeyWords)： 自然死亡率;资源量;渔获量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目 (30 2 71 0 2 5)资助

作者(Author): 王迎宾,刘群

DOI: 10.16441/j.cnki.hdxb.2005.01.004

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