The supergiant amphipod Alicella gigantea (Crustacea: Alicellidae) from hadal depths in the Kermadec Trench, SW Pacific Ocean
The supergiant amphipod Alicella gigantea (Crustacea: Alicellidae) from hadal depths in the Kermadec Trench, SW Pacific Ocean
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DOI：
10.1016/j.dsr2.2012.12.002
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发表时间：
2013-08-01
影响因子：
3
通讯作者：
Piertney, S. B.
中科院分区：
文献类型：
--
作者：
Jamieson, A. J.;Lacey, N. C.;Piertney, S. B.
在这里，我们提供了第一个记录的'supergiant'片脚类动物Alicella alectea Chevreux，1899年（Alicellidae）从南半球，并扩大了已知的水深范围超过1000米至7000米。在西南太平洋Kermadec海沟6979 m处用诱饵相机拍摄的1500张照片中，估计观察到9只个体。在6265 m和7000 m深处用诱饵诱捕器采集了9个标本，长度从102 ~ 290 mm不等。线粒体和核DNA序列表明该物种的世界性分布。本文还讨论了本种的非对称性的原因及其明显的间断性地理分布。皇冠版权所有（C）2012由爱思唯尔有限公司出版。保留所有权利。
Here we provide the first record of the 'supergiant' amphipod Alicella gigantea Chevreux, 1899 (Alicellidae) from the Southern Hemisphere, and extend the known bathymetric range by over 1000 m to 7000 m. An estimated nine individuals were observed across 1500 photographs taken in situ by baited camera at 6979 m in the Kermadec Trench, SW Pacific Ocean. Nine specimens, ranging in length from 102 to 290 mm were recovered by baited trap at depths of 6265 m and 7000 m. Mitochondrial and nuclear DNA sequences obtained indicate a cosmopolitan distribution for the species. Data and observations from the study are used to discuss the reason for gigantism in this species, and its apparently disjunct geographical distribution. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.