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G. onyx like most squid move using a propulsive force, using water expelled from a siphon with the combination of fin movements. The juvenile G. onyx has been observed using ink as a defensive mechanism and as a propulsive force, while the adults rarely use ink and rather choose to use a faster propulsive force. Matured members possess ...
Five female Gonatus onyx squids have been observed in Monterey Canyon dragging a membrane sack containing 2,000 to 3,000 developing eggs. [5] It is uncertain if this behavior extends to other members of the family Gonatidae or if it is particular to this species.
Gonatus is a genus of squid in the family Gonatidae, comprising twelve species, and therefore containing the most species in the family. Adult squid belonging to species in this genus are notable for their lack of tentacles.
Articles relating to the Gonatus, a genus of squid in the family Gonatidae, comprising twelve species, and therefore containing the most species in the family. Adult squid belonging to species in this genus are notable for their lack of tentacles.
By night, they ascend to the upper layers of the water column to feed by starlight. An internal balancing organ called a statocyst ensures graceful movement. Magister armhook squid prey upon both benthic and pelagic species; sculpins , smaller fish such as Sablefish and juvenile pollock , crustaceans including euphausiids and amphipods , and ...
Gonatus californiensis, commonly known as the California armhook squid, is a squid in the family Gonatidae. [ 1 ] [ 2 ] The species is endemic to the Eastern Pacific Ocean , [ 3 ] and members of the species are gonochoric .
Gonatus pyros, the fiery gonate squid, or fiery armhook squid, is a species of squid within the family Gonatidae. [1] The distribution of the species is in the central and eastern North Pacific from the Aleutian Islands to Baja California , where it lives at depths of 563–667 m (1,847–2,188 ft) in oceanic environments.
Gonatus anonychus Pearcy & Voss , 1963 Berryteuthis anonychus , also known as the minimal armhook squid or smallfin gonate squid , is a species of squid in the family Gonatidae .