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

[21]

Robertson, Grimes, The New Zealand orange roughy fishery, New Zealand Finfish Resources, pp. 15-20, (1983)

[22]

Smith, Esterase gene frequencies and temperature relationships in the New Zealand snapper Chrysophrys auratus, Mar. Biol., 53, pp. 305-310, (1979)

[23]

Smith, Genetic similarity between samples of the orange roughy Hoplostethus atlanticus from the Tasman Sea, southwest Pacific Ocean and northeast Atlantic Ocean, Mar. Biol., 91, pp. 173-180, (1986)

[24]

Smith, Homozygous excess in sand flounder, Rhombosolea plebeia, produced by assortative mating, Mar. Biol., 95, pp. 489-492, (1987)

[25]

Soule, Yang, Neiler, Gorman, Island lizards the geneticphenetic variation correlation, Nature, 242, pp. 191-193, (1973)

[26]

Verspoor, Reduced genetic variability in first generation hatchery populations of Atlantic salmon (Salmo salar), Canadian Journal of Fisheries and Aquatic Sciences, 45, pp. 1686-1690, (1988)

[27]

Ward, Beardmore, protein variation in the plaice Pleuronectes platessa L., Genet. Res., 30, pp. 45-62, (1977)

[28]

Winans, Genetic variability in chinook salmon stocks from the Columbia River Basin, North American Journal of Fisheries Management, 1, pp. 47-52, (1989)

[29]

Zouros, On the relation between heterozygosity and heterosis: an evaluation of the evidence from marine molluscs, Isozymes: Curr. Top. Biol. Med. Res., 15, pp. 255-270, (1987)

[30]

Zouros, Foltz, The use of allelic isozyme variation for the study of heterosis, Isozymes: Curr. Top. Biol. Med. Res., 13, pp. 1-59, (1987)

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