DIURNAL-VARIATION IN THE FEEDING-ACTIVITY AND CATCH RATE OF CAPE HAKE (MERLUCCIUS-CAPENSIS AND M-PARADOXUS) OFF NAMIBIA

被引：18

作者：

GORDOA, A

MACPHERSON, E

机构：

[1] Instituto de Ciencias del Mar, 08039 Barcelona, Paseo Nacional s/n

来源：

FISHERIES RESEARCH | 1991年 / 12卷 / 04期

关键词：

D O I：

10.1016/0165-7836(91)90014-7

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The diurnal pattern in the catch rate and feeding activity of Namibian hakes (Merluccius capensis and Merluccius paradoxus) was studied. Merluccius paradoxus fed more actively during the night, whereas the opposite was the case for M. capensis. However, catch rates for both species followed the same diurnal pattern. At night, the availibility of these species to bottom trawls was lower, although the difference was relatively small (night catches were 85-90% of day catches). The diurnal pattern of the length composition of the catches for both species was constant and these patterns were maintained throughout the year.

引用

页码：299 / 305

页数：7

共 21 条

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