Author:
Bradbury Helen E.,Aldrich Frederick A.
Abstract
The short-finned ommastrephid Illex illecebrosus illecebrosus (Lesueur) was induced to feed on dead capelin (Mallotus villosus (Müller)) while in captivity. The sessile arms, rather than the tentacles, are used in prey capture. Although the fish were dead, the ommastrephid still severed the spinal cord immediately upon capture, as described in earlier field observations. After feeding, non-ingestible portions (head, intestine, and tail fin) are forcibly ejected and the arms are cleaned of particles by a water jet from the funnel.Apparently, feeding in captivity is restricted to early morning hours, and one feeding in a tank precluded the acceptance of food by tank mates upon subsequent introduction of capelin.An encounter between two squid for the same capelin is described.
Publisher
Canadian Science Publishing
Subject
Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics
Cited by
15 articles.
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