Larval
rearing and spat production of edible oyster Crassostrea gryphoides
(Schlotheim)
R.M.
Tibile, H. Singh-2003
Aquaculture
Research, 34(10):
785
Abstract:
The
edible oyster Crassostrea gryphoides was induced to spawn in the
laboratory by thermal stimulation, and the larvae were reared to spat. The
larvae grow through the straight hinge (70x60.5 µm), early umbo (96.25x87.5
µm), late umbo (215x152.5 µm), eyed stage (290x222.5 µm) and pediveliger
(308.25x254.17 µm) in pelagic phase before metamorphosing to spat, and
these stages are described. These stages were reached at 20 h, on the
fifth, 11th, 15th, 19th and 21st day respectively. Spat settlement
percentage was found to be 1.8%.
(Department of Aquaculture, College of Fisheries,
Shirgaon, Ratnagiri - 415 629, Maharashtra, India. E-mail of H. Singh: rtg_fishcoll@sancharnet.in)