LOSS OF GENETIC DIVERSITY DUE TO FISHING PRESSURE

被引：156

作者：

SMITH, PJ

FRANCIS, RICC

MCVEAGH, M

机构：

[1] Fisheries Research Centre, Wellington

来源：

FISHERIES RESEARCH | 1991年 / 10卷 / 3-4期

关键词：

D O I：

10.1016/0165-7836(91)90082-Q

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Loss of genetic diversity in the orange roughy, Hoplostethus atlanticus, caught off New Zealand, was measured by gel electrophoresis of nine polymorphic enzyme loci. There has been a significant reduction in genetic diversity on three spawning sites over the past 6 years, during which time the virgin biomass has been reduced by approximately 70%. It is suggested that fishing activities which concentrate on spawning populations differentially remove the older and more heterozygous individuals from the virgin stock. Commercial fishing activities may have had significant genetic effects on fish stocks without reducing them to near-extinction levels.

引用

页码：309 / 316

页数：8

共 30 条

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