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Seasonal gonadal changes, spawning and condition index of oyster Crassostrea madrasensis (Preston) in the Korampallam creek, Tuticorin

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Relation http://eprints.cmfri.org.in/495/
 
Title Seasonal gonadal changes, spawning and condition index of oyster
Crassostrea madrasensis (Preston) in the Korampallam creek, Tuticorin
 
Creator Palaniswami, Rani
 
Subject Edible oyster
 
Description Seanod changca in the gonad of edible oyrter Crassosma madmsensis were oberved hir-
tologically in samples colleated &om Korampallam creek during February 1987 to January 1988.
Two peak spawning reasons wore observed in March and September. Gametogenerir atarted in
May 1987 and ripe atagea wore noticed from September 1987. Spawning occurred during Sep-
tember to Ootober. A second cycle of gametogenerir began during November 1987 and higher
percentage of ripe rtages were noticed during March 1987 and spawning commenced in early
March. Oyaten showed 5.60% of apent stage8 with reridual eggs throughout the year except
August, September. December and February. Oyden panred through indoterminate atage before
the advance of gametogenesis. No hermaphrodites were observed during thin period.
 
Publisher CMFRI/ICAR
 
Date 1993
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/495/1/Vol_40_No_4%3B242-246.pdf
Palaniswami, Rani (1993) Seasonal gonadal changes, spawning and condition index of oyster Crassostrea madrasensis (Preston) in the Korampallam creek, Tuticorin. Indian Journal of Fisheries, 40 (4). pp. 242-246.