Endogenous control of spawning in a marine copepod |
| |
| Authors: | Nancy H. Marcus |
| |
| Affiliation: | Biology Department, Woods Hole Oceanographie Institution, Woods Hole, MA 02543, U.S.A. |
| |
| Abstract: | Daily pattern of egg release has been studied in the marine calanoid copepod, Labidocera aestiva (Wheeler) under cycling light-dark (12L-12D, 12D-12L) conditions, and constant light (24L) or darkness (24D). Under cycling conditions maximum egg release occurred during the dark phase. Rhythmic spawning was also evident under 24D, but not under 24L. The results suggest that the pattern of nocturnal egg release is regulated by an endogenous rhythm entrained by light. |
| |
| Keywords: | spawning diel cycle endogenous rhythm photoperiod copepod |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
