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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.
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 ...
[3] [11] [12] Many mesopelagic cephalopods such as the firefly squid (Watasenia scintillans), decapod crustaceans, and deep ocean fishes use counter-illumination; it works best for them when ambient light levels are low, leaving the diffuse down-welling light from above as the only light source.
Nematolampas regalis, the regal firefly squid [3] is a small, little-known species of squid from the family Lycoteuthidae which is found in the subtropical South Pacific Ocean. This squid has a mantle length of 30 mm (1.2 in).
Vargula hilgendorfii, sometimes called the sea-firefly and one of three bioluminescent species known in Japan as umi-hotaru (海蛍), [1] is a species of ostracod crustacean.It is the only member of genus Vargula to inhabit Japanese waters; all other members of its genus inhabit the Gulf of Mexico, the Caribbean Sea, and waters off the coast of California. [2]
Enoploteuthidae is a family of squid comprising approximately 40 species in four genera. Most species have a mantle length ranging from 3–13 cm (1.2–5.1 in). Hooks are present on all arms and tentacles. The family is best known for the large array of photophores throughout the body.
Since 1993 squid has been the #1 fishery in California with landings of 118,000 tons [vague] and $41 million in 2000. The population fluctuates greatly with the El Niño . During these warm water and nutrient poor years landings can disappear entirely in certain areas.
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]