Section 27
Chapter 26,111

Zooplankton collections from the high polar basin with special reference to the Copepoda

Johnson, M.W.

Limnol And Oceanogr 8(1): 89-102


DOI: 10.2307/2832976
Accession: 026110108

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Analysis was made of 57 plankton tows taken to depths of 2,000 m from 81[degree]14[image] N, 85[degree]16[image]N during a portion of the 1957-58 drift of the ice flow Drift Station Alpha in the high Polar Basin. Thirty-one species of calanoid and 3 species of cyclopoid copepods were identified. Some uncertain species are discussed and figured. The most abundant species were Calanus glacialis, C. hyperboreus, and Metridia longa. These were most abundant above 100 to 200 m but were found sparsely distributed to depths of 1,000 to 2,000 m. There was an increased number of species with depth of sampling up to about 1,000 to 1,500 m. There appeared to be a rather wide period over which reproduction takes place in some species especially Pareuchaeta glacialis. Although most copepods carried by water currents from the Bering Sea and Chukchi Sea areas succumb before reaching the high Arctic, still a few expatriates were taken, notably Eucalanus bungii bungii and possibly Mimocalanus distincto-cephalus.

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