Aquaculture Science
Online ISSN : 2185-0194
Print ISSN : 0371-4217
ISSN-L : 0371-4217
Original Papers
Multiple Spawning by Uncopulated Oval Squid (Sepioteuthis lessoniana) in Captivity
Yuzuru IkedaYota OshimaChikatoshi SugimotoHideyuki Imai
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JOURNAL FREE ACCESS

2009 Volume 57 Issue 1 Pages 39-43

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Abstract

Two uncopulated oval squid (Sepioteuthis lessoniana) being isolated in captivity matured and spawned. They were raised respectively from young stage (squid 1) and hatching stage (squid 2) and had no contact with mature male squid. Squid 1 spawned after 88 d of isolation, and consequently spawned three times with intervals of 6-8 d. Spawned egg cases looked abnormal-each ovum was roughly wrapped in thin gelatinous material. Similarly, squid 2 spawned at 183 d and 195 d post-hatch.

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© 2009 Japanese Society for Aquaculture Research
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