THE REVERSIBILITY OF SUBITANEOUS AND DIAPAUSE EGG PRODUCTION BY INDIVIDUAL FEMALES OFLABIDOCERA AESTIVA(COPEPODA: CALANOIDA)
Open Access
- 1 February 1982
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 162 (1) , 39-44
- https://doi.org/10.2307/1540968
Abstract
In Vineyard Sound, Massachusetts [USA], the calanoid copepod L. aestiva undergoes a period of facultative diapause that is induced by short daylength photoperiods. Egg production by individual females is examined. Some, if not all, females can switch the type(s) of egg produced. In Vineyard Sound, females adjust to the decreasing daylengths experienced during the fall by switching production from subitaneous to diapause eggs. A female is probably triggered to switch the type of eggs produced after perceiving a specific number of short daylength photoperiods. The conversion is not instantaneous, however, and during this transition phase a female produces both subitaneous and diapause eggs. The reproductive capacity of the population is enhanced by this type of flexible diapause response.This publication has 0 references indexed in Scilit: