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|Title:||Breeding biology of Babylon snail Babylonia spirata (Linnaeus) (Mollusca: Neogastropoda: Buccinidae)|
Edward, J K Patterson
|Abstract:||Breeding biology of the buccinid gastropod B. spirata, has been studied as regards to sex ratio, maturity size, gonad index, laboratory spawning, egg capsules, hatching, fecundity and larvae. The sex ratio was found to be 1:1.34. Gonad index of both males and females was high in March 1993. Spawning was observed from February to May 1993. The B. spirata laid vasiform egg capsules in night hours from February to Map 1993 and the number of egg capsules per female, varied from 28 to 41. It took nearly 24 hours to liberate all the veliger larvae from capsule and the larvae showed positive phototactism and planktotrophism.|
|ISSN:||0975-1033 (Online); 0379-5136 (Print)|
|Appears in Collections:||IJMS Vol.25(4) [December 1996]|
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