Photic and circadian regulation of self-feeding activity in ayu

被引：0
作者：
Masafumi Amano
Masayuki Iigo
Kiyoshi Furukawa
Mitsuo Tabata
Kunio Yamamori
机构：
[1] Kitasato University,School of Fisheries Sciences
[2] Utsunomiya University,Department of Applied Biochemistry, Faculty of Agriculture
[3] The University of Tokyo,Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences
[4] Teikyo University of Science and Technology,Department of Animal Sciences
来源：
Fisheries Science | 2006年 / 72卷
关键词：
ayu; circadian rhythms; daily rhythms; self-feeding;
D O I：
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中图分类号：
学科分类号：
摘要：
The self-feeding rhythms of ayu Plecoglossus altivelis altivelis were examined. Individual ayu (mean body weight 40 g) were held in 60-L glass tanks equipped with self-feeders. Six of 14 fish learned self-feeding during the experiment. Under two different light-dark (LD) conditions (16 h:8 h and 8 h:16h LD), self-feeding was synchronized to the LD cycle, and feeding occurred almost exclusively during the light phase. During exposure to constant light (LL), circadian feeding rhythms were observed. These results indicate self-feeding rhythms in ayu are restricted to the light phase under LD conditions and are controlled by the circadian clock under LL conditions.
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页码：250 / 255
页数：5
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