Observation of a Gelatinous Octopod, Haliphron atlanticus, along the Southern West Mariana Ridge: A Unique Cephalopod of Continental Slope and Mesopelagic Communities
Observation of a Gelatinous Octopod, Haliphron atlanticus, along the Southern West Mariana Ridge: A Unique Cephalopod of Continental Slope and Mesopelagic Communities
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沿西马里亚纳海岭南部观察胶状章鱼（Haliphron atlanticus）：大陆坡和中层群落的独特头足类动物
DOI：
10.1155/2018/6318652
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发表时间：
2018
影响因子：
--
通讯作者：
K. Tsukamoto
中科院分区：
文献类型：
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作者：
Miller;M. J.;T. Miwa;S. Watanabe;M. Kuroki;T. Higuchi;A. Takeuchi;K. Serizawa;T. Okino;K. Tsukamoto
环全球深海凝胶状巨型节肢动物，Haliphron atlanticus，长达4米，在不同的生活史阶段使用海洋上部3000米的底栖和远洋栖息地，但由于它通常生活在深海，很少被观察到。它已被拖网收集，并在大陆边缘或岛屿附近观察了几次，并已在深潜捕食者（如抹香鲸和蓝鲨）的胃内容物中被确定，或在捕食事件后被检测为身体碎片。一个人H. Atlanticus（全长约1米）在12点21分在586-599米（6.5°C，盐度34.4）沿着西马里亚纳海脊的Shinkai 6500潜水器前进行了约3分钟的视频记录。当潜水器靠近时，它没有试图逃跑，而是在潜水器前面缓慢地上下移动。它位于海山（山顶≥ 1 529米）以西约50公里的外海山斜坡（海底深度~ 3 208米）之上，但它如何沿海脊沿着融入中层食物网尚不清楚。需要更多的信息来了解H的作用。大西洋金枪鱼生活在海洋食物网中，如果它通常生活在沿着海山脊。
The circumglobal deep‐sea gelatinous giant octopod,Haliphron atlanticus, reaches 4 m in length and uses both benthic and pelagic habitats in the upper 3000 m of the ocean during different life history stages, but it is rarely observed due to the deep‐depths where it typically lives. It has been collected in trawls and observed a few times near continental margins or islands and has been identified in the stomach contents of deep‐diving predators such as sperm whales and blue sharks or detected as body fragments after predation events. An individualH. atlanticus(~1 m in total length) was video‐recorded at 12:21 for about 3 minutes in front of the Shinkai 6500 submersible at 586–599 m (6.5°C, salinity 34.4) along the West Mariana Ridge. It made no escape attempt as the submersible approached and it moved slowly up or down in front of the submersible. It was over the outer seamount‐slope (bottom depth ~3208 m) ~50 km west of seamounts (≥1529 m summits), but how it fits into the mesopelagic food web along the ridge is unclear. More information is needed to understand the role ofH. atlanticusin oceanic food webs and if it typically lives along seamount ridges.