Body Size of Short-finned Squid Illex illecebrosus Larvae in the Northwest Atlantic*1

Abstract

The body sizes at early stages of short-finned squid Illex illecebrosus, Family Ommastrephidae, in the Northwest Atlantic were described based on 565 individuals of larvae and juveniles collected by R/V KAIYO MARU during January-March 1982. The size ranges at Rhynchoteuthion and transition stages were 1.6-5.7 mm and 4.0-8.2mm in dorsal mantle length (DML), and changeovers from Rhynchoteuthion to transition stages and from transition to juvenile (post-Rhynchoteuthion) stages occurred at the lengths about 5 mm and 7 mm DML, respectively. © 1986, The Japanese Society of Fisheries Science. All rights reserved.