Short Note Antarctic toothfish heads found along tide cracks of the McMurdo Ice Shelf

摘要

On 15 November 2009, we found 45 Antarctic toothfish (Dissostichus mawsoni Norman) heads along a 3 km stretch of the 10–15 km long tide crack that ran east–west in the McMurdo Ice Shelf just north of Bratina Island (Fig. 1). From 77859.1'S, 165836.2'E, we walked along the crack to a seal breathing hole at 78800.1', 165831.3'. We walked the same stretch on 7 December, finding also two pieces of fish skin, each 15–20 cm long; and again in November 2010, when we found no new heads.