Diel rhythms of feeding activity in African catfish, Clarias gariepinus (Burchell 1822)

被引：16
|
作者：
Hossain, MAR [1 ]
Batty, RS [1 ]
Haylor, GS [1 ]
Beveridge, MCM [1 ]
机构：
[1] Univ Stirling, Inst Aquaculture, Stirling FK9 4LA, Scotland
来源：
AQUACULTURE RESEARCH | 1999年 / 30卷 / 11-12期
关键词：
D O I：
10.1046/j.1365-2109.1999.00421.x
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Cycles of movement and feeding of African catfish, Clarias gariepinus (Burchell 1822) fingerlings (113.48 +/- 1.87 mm total length) were studied using an infrared illumination and video recording system. The study was carried out over a 15-day period with a group of 40 fish held at 30 degrees C under a 12-h light:12-h dark photoperiod. The fish were nocturnal and took over 70% of their daily ration at night when given access to food 24 h a day. When feeding was restricted to the light phase, feeding activity decreased, but nocturnal feeding was restored from the second day after a return to 24 h food access.
引用
收藏
页码：901 / 905
页数：5
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