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首页> 外文期刊>Marine biology >First in situ observation of Cephalopoda at hadal depths (Octopoda: Opisthoteuthidae: Grimpoteuthis sp.)
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First in situ observation of Cephalopoda at hadal depths (Octopoda: Opisthoteuthidae: Grimpoteuthis sp.)

机译:首先在哈尔深度的头部观察(八达体:Opisthoteuthidae:grimpoteuthis sp。)

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摘要

The Cephalopoda are not typically considered characteristic of the benthic fauna at hadal depths (depths exceeding 6000 m), yet occasional open-net trawl samples have implied that they might be present to similar to 8000 m deep. Previous in situ photographic evidence has placed the deepest cephalopod at 5145 m. The discrepancies between the two have meant that the maximum depth for cephalopods has gone unresolved. In this study we report on unequivocal sightings, by HD video lander, of a cephalopod at hadal depths. The demersal cirrate octopod Grimpoteuthis sp. was observed at both 5760 and 6957 m in the Indian Ocean. These observations extend the known maximum depth range for cephalopods by 1812 m and increase the potential benthic habitat available to cephalopods from 75 to 99% of the global seafloor.
机译:Cephalopoda通常被认为是哈尔深度的底栖动物的特征(深度超过6000米),偶尔的开放式拖网样品暗示它们可能存在于类似于8000米的深处。以前的原位摄影证据已经在5145米处放置了最深的头孢氨酸。两者之间的差异意味着Cephalopods的最大深度已经未解决。在这项研究中,我们通过HDAL深度的Cephalopod的高清视频兰德的明确景点报告。 Defersal Cirrate Octopod Grimpoteuthis SP。在印度洋中观察到5760和6957米。这些观察结果将Cephalopods的已知最大深度范围延伸到1812米,从全球海底的75%到99%的脑电图增加潜在的底栖栖息地。

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  • 来源
    《Marine biology》 |2020年第6期|82.1-82.5|共5页
  • 作者单位

    Newcastle Univ Sch Nat & Environm Sci Newcastle Upon Tyne NE1 7RU Tyne & Wear England;

    NOAA Natl Systemat Lab Natl Museum Nat Hist Washington DC 20560 USA;

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