Journal of Plankton Research Vol.24 no.2 pp.155-158, 2002
© Oxford University Press 2002
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Bi-modal vertical distribution of the carnivorous copepod Paraeuchaeta norvegica
Department of Biology, University of Oslo, PO Box 1064 Blindern, N-0316 Oslo, Norway
Stein Kaartvedt. E-mail: stein.kaartvedt{at}bio.uio.no
1 Present Address: Norwegian Institute Of Fisheries And Aquaculture Ltd, N-9291 Tromsø, Norway
Bi-modal vertical distribution of Paraeuchaeta norvegica during late autumn was observed in a Norwegian fjord in three different years, and hence seems to be a recurring phenomenon. An upper mode performed diel vertical migration, foraging in shallow water at night. A deep mode did not migrate vertically, but some feeding took place at depth.
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