The relationship between maternal body size and clutch size, development time and egg mortality in Euchaeta norvegica (Copepoda: Calanoida) from Loch Etive, Scotland
- 1 August 1977
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 57 (3), 723-733
- https://doi.org/10.1017/s0025315400025133
Abstract
The relationship between maternal body size and egg clutch size in the marine calanoid copepod E. norvegica was quantified. Generally, larger females produced a greater volume and number of eggs than smaller ones, but some evidence suggested that smaller females produced a greater volume and number of eggs/unit body volume than larger ones. Possible causes of these variations are discussed. Egg mortality within the sac averaged 4%, with a range of 0-17%. The time taken by the eggs to hatch after egg laying was on average 18.7 days at 10.degree. C. A clutch of eggs was about 6% of wet body wt. The dry weight transferred to the eggs sometimes exceeded 25% of that remaining in the female body. Females kept in the laboratory were able to lay viable eggs after 3 wk isolation from males. This indicates a long storage life of the sperm after transfer to the females'' seminal receptacles.Keywords
This publication has 27 references indexed in Scilit:
- Patterns of spermatophore distribution and placement in Euchaeta norvegica (Copepoda: Calanoida)Journal of the Marine Biological Association of the United Kingdom, 1977
- Brood size and chemical composition of Pareuchaeta norvegica (Crustacea: Copepoda) in Loch Etive, ScotlandMarine Biology, 1976
- Egg production and oil storage by the copepod Pseudocalanus in the laboratoryJournal of Experimental Marine Biology and Ecology, 1969
- TEMPERATURE ADAPTATIONS OF COPEPOD EGGS FROM THE ARCTIC TO THE TROPICSThe Biological Bulletin, 1969
- Reproductive Cycle, Early Development, and Fecundity in Laboratory Populations of the Copepod Calanus Hyperboreus 1)Crustaceana, 1967
- SOME RELATIONSHIPS BETWEEN TEMPERATURE AND EGG SIZE, BODY SIZE, DEVELOPMENT RATE, AND FECUNDITY, OF THE COPEPOD PSEUDOCALANUS1Limnology and Oceanography, 1965
- Effects of Temperature on Growth of Zooplankton, and the Adaptive Value of Vertical MigrationJournal of the Fisheries Research Board of Canada, 1963
- SWIMMING AND FEEDING IN CRUSTACEAN LARVAE: THE NAUPLIUS LARVAJournal of Zoology, 1959
- GROWTH, SIZE AND REPRODUCTION IN DAPHNIA (CRUSTACEA: CLADOCERA)*Journal of Zoology, 1956
- Physiology: Temperature and morphology in freshwater organismsSIL Proceedings, 1922-2010, 1953