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Abstract:
Zooplankton samples were collected by vertical haul of Quad-NORPAC nets at 58 stations in the Pacific sector of the Arctic Ocean. The Quad-NORPAC net (mesh sizes: 335, 150 and two of 63 micrometre [one is for a fixed sample and the other has a large-sized cod-end to collected fresh samples for incubation], mouth diameter: 45 cm) was towed between the surface and the depth of 150 m (or the bottom - 10 m at stations where the bottom was <150 m) at all stations.