SOCIAL GROUPINGS AND CIRCADIAN ACTIVITY OF THE KILLIFISH, FUNDULUS HETEROCLITUS
SOCIAL GROUPINGS AND CIRCADIAN ACTIVITY OF THE KILLIFISH, FUNDULUS HETEROCLITUS
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鳉鱼的社会群体和昼夜活动
DOI：
10.2307/1540759
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
M. Kavaliers
中科院分区：
文献类型：
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作者：
M. Kavaliers
研究了群体大小和恒定光照强度对大西洋鳉（Fundulus heteroclitus）昼夜运动活动的影响。个体鱼在恒定黑暗（DD）和恒定光照（LL）下表现出自由运行的运动活动昼夜节律。DD下的周期长度（r）显著大于LL下（DD下为26.3 ± 0.20 hr，而100 lux下为24.6 ± 0.40 hr）。周期长度显着依赖于恒定照明的强度。5条鱼的组表现出更多变的昼夜活动，从DD和LL的r值没有显着差异。该组25鱼形成了一个浅滩，并显示精确的昼夜节律周期下DD和LL。DD周期显著大于LL（DD为25.7 ± 0.20小时，而100 lux为24.7 ± 0.20小时）。r也随光照强度的增加而减小。浅水鱼类的昼夜节律长度及其与LL的关系存在显著差异。
The effects of group size and intensity of constant illumination on the circadian locomotor activity of the Atlantic killifish, Fundulus heteroclitus, were examined. Individual fish displayed a free running circadian rhythm of locomotor activity under constant darkness (DD) and constant illumination (LL). The period length (r) under DD was significantly greater than that under LL (26.3 ± 0.20 hr for DD as compared to 24.6 ± 0.40 hr at 100 lux). Period lengths were significantly dependent on the intensity of constant illumination. Groups of 5 fish displayed more variable circadian activity with no significant differences in r values from DD and LL. The group of 25 fish formed a shoal and displayed precise circadian periods under DD and LL. The DD period was significantly greater than that under LL (25.7 ± 0.20 hr for DD as compared to 24.7 ± 0.20 hr for 100 lux). r also decreased with increasing intensity of illumination. Circadian period lengths and relations to LL of shoaling fish were significantly diff...