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Loligo squid gather near the surface of the water and males frenzy for females. Insertion of a sperm sac into the female is done with the tentacles of a male. The female then lays the fertilized eggs in roughly twenty jelly-filled sacs, each containing 200-300 eggs.
The European squid or common squid (Loligo vulgaris) is a large squid belonging to the family Loliginidae. It occurs abundantly in coastal waters from the North Sea to at least the west coast of Africa. This species lives from sea level to depths of 500 m (1,600 ft). Its mantle is up to 40 cm (16 in) long. The species is extensively exploited ...
Doryteuthis opalescens eggs are laid on sandy bottom substrates in 10–50 m depth, although there is a report of a shrimp trawler pulling up eggs from 400 fathoms (730 m). Females encapsulate hundreds of eggs in a sheath that is made of many layers of protein .
Doryteuthis gahi, also known as Loligo, the Patagonian longfin squid [2] and Patagonian squid (Spanish: calamar patagónico or just calamar), [3] is a small-sized squid belonging to the family Loliginidae. It occurs in coastal waters in the southeastern Pacific Ocean and the southwestern Atlantic Ocean where it is caught and eaten for food.
The longfin inshore squid spawns year-round and lives for less than one year. "Eggs are demersal. Enclosed in a gelatinous capsule containing up to 200 eggs. Each female lays 20-30 capsules. Fecundity ranges from 950–15,900 eggs per female. Laid in masses made up of hundreds of egg capsules from different females."
Lolliguncula brevis. The female Atlantic brief squid is about 11 cm long and the male 9 cm. The maximum mantle length recorded was 12 cm. The basic colour is dark reddish-brown to yellow-brown and there are many chromatophores on the upper surface which enable the squid to change colour.
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The eggs hatch after about 2 weeks when the juveniles are 2 mm long. They first appear in plankton samples towards the end of July; after about 15 to 30 days, they switch to a demersal mode of life. In November, when they are 3 months old and about 3 cm in length, they move out of the North Sea, returning the following spring, by which time ...