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<p>While rapid environmental change is reshaping Arctic marine ecosystems, much of the region remains biologically unexplored. The marine habitats of Northeast Greenland National Park, the largest national park on Earth, are among the least documented with limited benthic and pelagic data available. Establishing biodiversity baselines in this region is crucial for understanding ecosystem function and resilience under accelerating climate change. Cephalopods, which play vital ecological roles as both predators and prey, remain poorly known in Arctic waters, with few confirmed records. Here, we report the first in situ record of a mature female <i>Rossia moelleri</i> (Family Sepiolidae) and associated egg masses from NE Greenland NP. Using a Remotely Operated Vehicle (ROV), launched during a Secret Atlas Expedition Micro-Cruise in September 2025, we made in situ observations of the specimen and the egg clusters at 50&#xa0;m depth in sub-zero water (− 1.6&#xa0;°C). These findings confirm the presence of the Arctic endemic <i>Rossia moelleri</i> and provide direct evidence of active cephalopod reproduction in Northeast Greenland. The quality of these observations underscores the value of small-scale, low-impact ROV surveys for advancing biodiversity discovery in remote polar environments.</p>

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First in situ record of Rossia moelleri (bobtail squid) and egg masses in Northeast Greenland National Park

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月8日

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  • Paige J. Maroni,
  • Julien Cornet,
  • Yaroslava Skorikova,
  • Giancarlo Gallinoro,
  • Michele D’Agostino,
  • Mariano Curiel,
  • Tim Macdonald

摘要

While rapid environmental change is reshaping Arctic marine ecosystems, much of the region remains biologically unexplored. The marine habitats of Northeast Greenland National Park, the largest national park on Earth, are among the least documented with limited benthic and pelagic data available. Establishing biodiversity baselines in this region is crucial for understanding ecosystem function and resilience under accelerating climate change. Cephalopods, which play vital ecological roles as both predators and prey, remain poorly known in Arctic waters, with few confirmed records. Here, we report the first in situ record of a mature female Rossia moelleri (Family Sepiolidae) and associated egg masses from NE Greenland NP. Using a Remotely Operated Vehicle (ROV), launched during a Secret Atlas Expedition Micro-Cruise in September 2025, we made in situ observations of the specimen and the egg clusters at 50 m depth in sub-zero water (− 1.6 °C). These findings confirm the presence of the Arctic endemic Rossia moelleri and provide direct evidence of active cephalopod reproduction in Northeast Greenland. The quality of these observations underscores the value of small-scale, low-impact ROV surveys for advancing biodiversity discovery in remote polar environments.