Vertical Migration of Zooplankton in the Gulf of Finland

1 April 1980

journal article
research article
Published by JSTOR in The American Midland Naturalist

Vol. 103 (2) , 316-321
https://doi.org/10.2307/2424629

Abstract

Vertical migrations of zooplankton [Synchaeta monopus, S. baltica, Keratella quadrata, K. cochlearis, Bosmina coregoni, Evadne nordmanni, Podon polyphemoides, Tintinnopsis tubulosa, Acartia bifilosa, Eurytemora hirundoides and Macoma baltica] in the Gulf of Finland were measured over 12 h (1800-0600 h). Most species migrated upward as the surface light intensity decreased and downward with an increase in light intensity. Salinity and temperature gradients did not affect this pattern. There was no midnight sinking of the zooplankton.

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