This video captures observations of deep-sea marine life, focusing on a particularly large and striking deep-sea anemone, potentially of the species Actctennis skyia (Actinoscyphia). The crew discusses the anemone's size (up to 30-40 cm) and the associated fauna. Key sightings include commensal polychaete worms (polynoids) nestled within the anemone’s body, a passing Cutthroat eel, and a small isopod dwelling nearby. The footage concludes with a fascinating example of symbiosis: a hamalid crab carrying a separate anemone like a "backpack," demonstrating specialized modifications for this behavior. Throughout the viewing, the crew comments on the otherworldly appearance of deep-sea invertebrates.
Deep-Sea Anemones and Commensal Relationships
0:00 Large Anemone Sighting: The video opens with a sighting of a large Actenodes-like anemone, estimated to reach up to 30 to 40 cm across (dinner plate size).
0:24 Polychaete Symbiosis: Polychaete worms (polynoids or "skill worms") are observed living inside the mounted anemone, an association that the crew notes is seen quite frequently.
0:46 Passing Wildlife: A Cutthroat eel briefly passes through the frame.
1:38 Anemone Morphology and Habitat: The anemone is identified as a species that always grows on stalks (Actctennis skyia), in this case, attached to the spicules/fibers of an old sponge stock.
2:05 Associated Fauna: A small white isopod, related to roly-polies or pill bugs, is spotted hanging out on the anemone.
2:59 Specialized Symbiosis (Anemone Backpack): The crew spots a hamalid crab utilizing an anemone as a "backpack," held in place by its modified rearmost appendages. (Key Takeaway: This highlights a specialized symbiotic relationship where the crab carries the protective anemone.)
Key Details and Commentary: The anemones primarily consume small crustaceans (2:52). The crew made several comparisons of the deep-sea life to horror movie creatures and suggested that these striking organisms should inspire fashion (1:17, 2:26).