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The firefly squid inhabits the waters off the coast of Japan. [13] [14] The depth at which these squids can be found varies (300–400 m or 1,000–1,300 ft during the day, and 20–60 m or 70–200 ft during the night) over the course of a day, [14] as they are one of the several species of squid that participates in diel vertical migration.
The elongate jewel squid (Histioteuthis reversa), so called because the photophores festooning its body make it appear bejewelled. Diagram of a cephalopod's photophore, in vertical section. A photophore is a glandular organ that appears as luminous spots on marine animals, including fish and cephalopods. The organ can be simple, or as complex ...
There are around 300 species of squid living in the ocean and they can range in size from less than an inch to the massive 50-foot-long giant squid. The strawberry squid ( Histioteuthis heteropsis ...
Lampadioteuthis megaleia is a small, colorful squid, the only species in the only genus in the monotypic family Lampadioteuthidae. [3] It is sometimes known as the wonderful firefly squid . It was formerly classified in the family Lycoteuthidae , but differs from them mainly by having a hectocotylus in the males and by the possession of a ...
Spawning appears to occur throughout the year and there are peaks of spawning activity in April–May, August–September and December–January in the eastern-central Atlantic. [ 1 ] O. antillarum preys on many different types of prey and each individual prey item has a low weight, the most common prey is amphipods but it also eats the larvae ...
The Japanese flying squid, Japanese common squid or Pacific flying squid, [3] scientific name Todarodes pacificus, is a squid of the family Ommastrephidae.This animal lives in the northern Pacific Ocean, in the area surrounding Japan, along the entire coast of China up to Russia, then spreading across the Bering Strait east towards the southern coast of Alaska and Canada.
Colossal squid oocytes have been observed at sizes ranging from as large as 3.2x2.1 mm to as small as 1.4x0.5 mm. Sampling of colossal squid ovaries show an average of 2175 eggs per gram. [34] Young squid are thought to spawn near the summer time at surface temperatures of −0.9–0 °C (30.4–32.0 °F). [32]
Many cephalopods, including at least 70 genera of squid, are bioluminescent. [34] Some squid and small crustaceans use bioluminescent chemical mixtures or bacterial slurries in the same way as many squid use ink. A cloud of luminescent material is expelled, distracting or repelling a potential predator, while the animal escapes to safety. [34]