New Zealand Journal of Marine and Freshwater Research abstracts

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Distribution of zooplankton in a coastal upwelling in New Zealand

B. A. FOSTER W. R. BATTAERD

Department of Zoology University of Auckland Private Bag, Auckland New Zealand

Abstract Species composition and biomass of plankton samples taken on transects across an upwelling plume off Farewell Spit in February 1981 are presented. Copepods were numerically dominant, particularly Oithona similis and Paracalanus indicus. Also abundant were large phytoplankters (Chaetoceros sp. and Trichodesmium sp.), crustacean faecal pellets, and euphausiid larvae. The distribution of zooplankton species suggests mixing of inshore waters and neritic populations with upwelled waters. These data are discussed with respect to an interpretation of the upwelling system as a northwards transport of zooplankton and its enhanced productivity into the South Taranaki Bight.

Keywords zooplankton; upwelling; temperature; Farewell Spit; South Taranaki Bight; cope-pods; protistans; euphausiids

New Zealand Journal of Marine and Freshwater Research, 1985, Vol. 19: 213-226 Received 5 April 1984; accepted 25 October 1984

PDF file of entire paper: medium quality (804K); (scanned from paper original: notes about this process)

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