JOURNAL OF PLANKTON RESEARCH | VOLUME 16 | NUMBER 10 | PAGES 1353-1366 | 1994
© Oxford University Press
research-article |
Reproductive and life cycle strategies in egg-carrying cyclopoid and free-spawning calanoid copepods
Danish Institute for Fisheries and Marine Research Charlottenlund Castle, DK-2920 Charlottenlund, Denmark
Received on February 10, 1994; accepted on May 20, 1994
Egg-carrying cyclopoid copepods have lower fecundity and feeding rates, and longer egg hatching times, than free-spawning calanoid copepods. Simple demographic considerations suggest . that the lower feeding and fecundity of egg-carrying cyclopoids are adaptations to the potentially elevated mortality of ovigerous females, while the shorter egg hatching time and higher feeding and fecundity rates found in free-spawning calanoid copepods represent adaptations to the very high mortality rates experienced by suspended eggs.
1Present address: Instituto Nacional de Investigatión y Desarrollo Pesquero, INIDEP, CC 175, Play a Grande, Mar del Plata, Argentina
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