Life history of Gonatus onyx (Cephalopoda : Teuthoidea): deep-sea spawning and post-spawning egg care

Publication Type:Journal Article
Year of Publication:2000
Authors:B. A. Seibel, Hochberg, F. G., Carlini, D. B.
Journal:Marine Biology
Volume:137
Pagination:519-526
Date Published:Oct
Type of Article:Article
ISBN Number:0025-3162
Accession Number:WOS:000165187000015
Keywords:buoyancy, DNA, Gonatidae, Mollusca, OCTOPOD CEPHALOPODA, reproduction, SEQUENCES, SQUID BERRYTEUTHIS-MAGISTER
Abstract:

A It productive strategy consisting of deepwater spawning and egg-care was inferred for the midwater squid Gonatus onyx Young, 1972. Brooding females and associated eggs and hatchlings, captured between 1250 and 1750 m depth off southern California, are described. Brooding females appear to be senescent and lack tentacles. Large eggs of this species (3 mm) at cold temperatures (3 degreesC at capture depth) may require as long as 9 mo to develop. The high lipid content of the digestive gland in adult females of this species may provide fuel to support such an extended "brooding" period.

Alternate Journal:Mar. Biol.
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