Underwater video observation of the Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) in the Ross Sea, Antarctica

被引:12
|
作者
Eastman, JT [1 ]
Barry, JP
机构
[1] Ohio Univ, Dept Biomed Sci, Athens, OH 45701 USA
[2] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA
基金
美国国家科学基金会;
关键词
D O I
10.1007/s00300-002-0359-x
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
A towed benthic camera system captured images of a ca. 66-cm-long Antarctic toothfish partially under a boulder at 76degrees30'S, 174degrees59'E (depth 454 m) in the southern Ross Sea. This is noteworthy because, excluding McMurdo Sound, there are only two published records for this species in the Ross Sea and none in an offshore locality. Adult Dissostichus mawsoni are neutrally buoyant and live and feed in the lower reaches of the water column. Benthic perching is unexpected, suggesting that this subadult is not neutrally buoyant.
引用
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页码:391 / 395
页数:5
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