Structure and dynamics of zooplankton communities maintained in closed systems, with special reference to the algal food supply

Seasonal changes in the structure of the zooplankton communities of two large (18 500 m3) experimental enclosures (‘Lund Tubes’) are reviewed. The diets of the two most prominent crustaceans, Daphnia hyalina and Diaptomus gracilis, were investigated by direct analyses of gut contents and in a series...

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Bibliographic Details
Published in:Journal of plankton research 1982, Vol.4 (3), p.523-543
Main Authors: Ferguson, A.J.D., Thompson, J.M., Reynolds, C.S.
Format: Article
Language:English
Subjects:
Daphnia hyalina
Diaptomus gracilis
Freshwater
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Summary:Seasonal changes in the structure of the zooplankton communities of two large (18 500 m3) experimental enclosures (‘Lund Tubes’) are reviewed. The diets of the two most prominent crustaceans, Daphnia hyalina and Diaptomus gracilis, were investigated by direct analyses of gut contents and in a series of short term experimental manipulations of communities isolated in 6 m3 bags, placed in one of the enclosures. The relative abundance of Daphnia hyalina generally coincided with warmer water temperatures between late spring and late summer, but its numbers fluctuated within that period, apparently in response to the availability of smaller algae (
ISSN:0142-7873
1464-3774
DOI:10.1093/plankt/4.3.523