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Northern shortfin squid is a moderately-sized squid with females ranging from 20 to 30 centimetres (7.9 to 11.8 inches) in mantle length while males are generally smaller with mantle length ranging from 18 to 27 cm (7.1 to 10.6 in). [8] Northern shortfin squid has short tentacles with a long and narrow head which is connected to the long mantle.
It is a carnivore and its food consists mainly of fish, crabs, lobsters and molluscs caught with its suckers. These cephalopods are predated by Northern bottlenose whale ( Hyperoodon ampullatus ), Sperm whale ( Physeter macrocephalus ), Blue shark ( Prionace glauca ), Swordfish ( Xiphias gladius ) and Cuvier's beaked whale ( Ziphius cavirostris ).
A molluscivore is a carnivorous animal that specialises in feeding on molluscs such as gastropods, bivalves, brachiopods and cephalopods.Known molluscivores include numerous predatory (and often cannibalistic) molluscs, (e.g.octopuses, murexes, decollate snails and oyster drills), arthropods such as crabs and firefly larvae, and, vertebrates such as fish, birds and mammals. [1]
The squid's vernacular name arose due to its rich red skin pigmentation and the presence of photophores along its body, making it appear like a strawberry with seeds. [2] H. heteropsis live in the ocean's mesopelagic zone and are found in the California Current and the Humboldt Current. [4]
Taningia danae, the Dana octopus squid, is a species of squid in the family Octopoteuthidae. It is one of the largest known squid species, reaching a mantle length of 1.7 m (5.6 ft) [3] and total length of 2.3 m (7.5 ft). [4] The largest known specimen, a mature female, weighed 161.4 kg (356 lb). [5]
Octopoteuthis deletron is a species of squid in the genus Octopoteuthis of the family Octopoteuthidae. They belong to the pelagic squids of order Oegopsida. Found at depths of 400 to 800 m (1,300 to 2,600 ft) in the Pacific Ocean, they have been known to grow to 24 cm (9.4 in). O. deletron has been found to break off its arms as a defense ...
The Caribbean reef squid is the only squid species commonly sighted by divers over inshore reefs in the Florida, Bahamas and Caribbean regions. They are also found around Brazilian reef habitats, due to a symbiotic relationship in which the squid protect juvenile fish from open-ocean predators. [5]
Some egg beds can cover acres of the ocean floor. The eggs take 3–8 weeks to hatch with warmer water shortening the incubation time. Bat stars (Asterina miniatus) are the most prevalent predators of eggs. Fish do not eat them, although they will nip at eggs not covered by the capsule sheath. There is no brooding. Doryteuthis opalescens paralarva