2017/03/27 by Henk‐Jan Hoving, Steven H. D. Haddock · 4 citations
Agricultural and Biological Sciences · Earth and Planetary Sciences · Environmental Science · #Cephalopods and Marine Biology #Crustacean biology and ecology #Marine Invertebrate Physiology and Ecology
paper · pdf · doi:10.1038/srep44952
openalex publication_date 2017/03/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Feeding strategies and predator-prey interactions of many deep-sea pelagic organisms are still unknown. This is also true for pelagic cephalopods, some of which are very abundant in oceanic ecosystems and which are known for their elaborate behaviors and central role in many foodwebs. We report on the first observations of the giant deep-sea octopus Haliphron atlanticus with prey. Using remotely operated vehicles, we saw these giant octopods holding medusae in their arms. One of the medusae could be identified as Phacellophora camtschatica (the egg-yolk jelly). Stomach content analysis confirmed predation on cnidarians and gelatinous organisms. The relationship between medusae and H. atlanticus is discussed, also in comparison with other species of the Argonautoidea, all of which have close relationships with gelatinous zooplankton.