POPULATION-STRUCTURE AND YIELD-PER-RECRUIT ANALYSIS OF THE GIANT PERIWINKLE TURBO-SARMATICUS IN THE CAPE-ST-FRANCIS REGION, SOUTH-AFRICA

被引：11

作者：

BRUTON, J ^{[1
]}

BAIRD, D ^{[1
]}

COETZEE, PS ^{[1
]}

机构：

[1] UNIV PORT ELIZABETH,DEPT ZOOL,POB 1600,PORT ELIZABETH 6000,SOUTH AFRICA

来源：

SOUTH AFRICAN JOURNAL OF MARINE SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR SEEWETENSKAP | 1991年 / 11卷

关键词：

D O I：

10.2989/025776191784287754

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Thc density, biomass and population structure of Turbo sarmaticus at three different sites in the Cape St Francis region, together with its distribution along the tidal gradient, were investigated. Differences in density and population structure between sites can be attributed mainly to different degrees of exposure to wave action. An intraspecific size gradient was found, mean shell length decreasing in an upshore direction. The yield potential of the species was investigated and it appears that present levels of exploitation in the study area are sustainable. The present minimum legal size should not be lowered.

引用

页码：345 / 356

页数：12

共 36 条

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