Antarctic Science

Biological Sciences

Short Note: Life history of the Antarctic sea star Labidiaster annulatus (Asteroidea: Labidiasteridae) revealed by DNA barcoding

Alexis M. Janosika1, Andrew R. Mahona1, Rudolf S. Scheltemaa2 and Kenneth M. Halanycha1 c1

a1 Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849, USA

a2 Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA

Labidiaster annulatus, Sladen (1889) is a multi-rayed (9–50) voracious Antarctic sea star with numerous large, conspicuous crossed pedicellariae. An active and opportunistic predator, it commonly preys upon euphausiids, amphipods, and small fish in the water column (Dearborn et al. 1991). Labidiaster annulatus is distributed around the Antarctic, Kerguelen, South Orkney, South Sandwich Islands, South Georgia, and Shag Rocks, at recorded depths of 30–440 m (Fisher 1940, unpublished data).

(Received June 25 2008)

(Accepted July 18 2008)

Correspondence:

c1 corresponding author: ken@auburn.edu

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