Microsetella norvegica: a rare report of a potentially abundant copepod on the Scotian Shelf |
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Authors: | J C Dugas J A Koslow |
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Institution: | (1) Department of Oceanography, Dalhousie University, B3H 4JI Halifax, Nova Scotia, Canada;(2) Present address: Graduate School of Oceanography, University of Rhode Island, South Ferry Road, 02882 Narragansett, Rhode Island, USA |
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Abstract: | Fine mesh (0.080 mm) zooplankton samples were collected along an onshore-offshore transect during three cruises (February to May, 1983) off southwest Nova Scotia, Canada. The small harpacticoid copepod Microsetella norvegica was numerically the dominant copepod during the winter (February) cruise, where it composed up to 50% of the total zooplankton, and was consistently among the three most abundant copepods during the spring cruises. Due to its small size (<0.45 mm in length), M. norvegica has rarely been reported from plankton surveys of the northwest Atlantic. However, existing reports indicated it varies interannually from being a rare to an abundant member of the zooplankton community in the northwest Atlantic. |
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