Doryteuthis opalescens (Berry, 1911)
Opalescent inshore squid
Doryteuthis opalescens
photo by FAO

Family:  Loliginidae (inshore squids)
Max. size:  19.2 cm ML (male/unsexed); 17.9 cm ML (female); max.weight: 148.0 g; max.weight: 112.0 g
Environment:  pelagic; marine; depth range 20 - 180 m
Distribution:  Eastern Pacific. Tropical to boreal.
Diagnosis:   
Biology:  Caught by brails and night lights and pumps and night lights. Individual behavior: pale coloration indicates relaxation while dark, high contrast chromatic elements indicate alertness; protracted inking occurs after an abrupt stop from a backward jetting squid; in swimming, drag is reduced from the tightening of fin curvature which reduces the fin span relative to the average fin chord; fins and arms were used to maneuver. Schooling and shoaling: schools at night were tighter than during the day (Ref. 94861).
IUCN Red List Status: (LC); Date assessed: 15 July 2015 Ref. 123251)
Threat to humans: 
Country info:   
 

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