Pseudocalanus acuspes (Crustacea: Copepoda) from the White Sea.

Markhaseva, E. L., Abramova, A. A. and Mingazov, N. D. (2012) Pseudocalanus acuspes (Crustacea: Copepoda) from the White Sea. Proceedings of the Zoological Institute RAS, 316 (1). pp. 57-70.

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The presence of Pseudocalanus acuspes in the White Sea is confirmed. In this northern Sea P. acuspes coexists with
its congener P. minutus. The morphological characters proposed by Frost (1989) as distinguishing for P. minutus
and P. acuspes apply well for the White Sea specimens. A key diagnostic character is P4 coxopod to basipod ratio,
which is more than 1.5 in P. minutus and less than 1.5 in P. acuspes. Additional characters are: size of spiniform
processes on postero-ventral margins of pedigerous somites 2 and 3, prosome to urosome ratio, and shape of
cephalon in anterior lateral view. In females morphology of oral parts does not help in distinguishing between
species, but is helpful for males.

Document Type: Article
Keywords: Copepoda, P. minutus, P. acuspes, the White Sea
Refereed: No
Open Access Journal?: Yes
Publisher: Zoological Institute, Russian Academy of Sciences, St Petersburg
Projects: Otto Schmidt Laboratory
Date Deposited: 23 Jun 2015 13:03
Last Modified: 24 Jan 2017 13:14

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