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Title: First record of the larvae of tanner crab Chionoecetes bairdi in the Chukchi Sea: A future northward expansion in the Arctic?
Authors: Landeira Sánchez, José María 
Matsuno, Kohei
Tanaka, Yuji
Yamaguchi, Atsushi
UNESCO Clasification: 240119 Zoología marina
Keywords: Global warming
Fishery Larval transport
Issue Date: 2018
Journal: Polar Science 
Abstract: In the Bering Sea, warming and reduction of summer sea-ice cover are driving species ranges towards the Arctic. Tanner crab, Chionoecetes bairdi, is a commercially important species in the SE Bering Sea with a northerly range margin in 62ºN. In this paper, using plankton samples collected in the Pacific sub-Arctic/Arctic sector during summer, we report for the first time the presence of larval stages (zoea II) of C. bairdi far from its northern limit of the distribution, in the south of St. Lawrence Island during 1991, and even crossing the Bering Strait into the Chukchi Sea during 1992. We suggest that the long planktonic phase (3–5 months), in combination with the oceanographic circulation, may facilitate eventual long-distance transport.
ISSN: 1873-9652
DOI: 10.1016/j.polar.2018.02.002
Source: Polar science [ISSN 1873-9652], v. 16, p. 86-89
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