Sex Ratio and Sex Reversal in Two-year-old Class of Oyster, Crassostrea gigas (Bivalvia: Ostreidae)

The sex ratio (F:M) in the same population of oyster, Crassostrea gigas at the commencement of the study (2007) was 1:1.0, but changed to 1:2.8 by the end of the study (2008). The sex reversal rate in two-year-old oysters was 40.2%. Specifically, female to male sex reversal rate was 66.1%, which is...

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Bibliographic Details
Published in:Development & Reproduciton
Main Authors: Park, Jung Jun, Kim, Hyejin, Kang, Seung Wan, An, Cheul Min, Lee, Sung-Ho, Gye, Myung Chan, Lee, Jung Sick
Format: Text
Language:English
Published: Korean Society of Developmental Biology 2012
Subjects:
Article
Crassostrea gigas
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4282249/
https://doi.org/10.12717/DR.2012.16.4.385
Description
Summary:The sex ratio (F:M) in the same population of oyster, Crassostrea gigas at the commencement of the study (2007) was 1:1.0, but changed to 1:2.8 by the end of the study (2008). The sex reversal rate in two-year-old oysters was 40.2%. Specifically, female to male sex reversal rate was 66.1%, which is higher than the male to female sex reversal rate of 21.1%. The sex reversal pattern of C. gigas appears to go from male⇒female⇒male, and as such is determined to be rhythmical hermaphroditism.

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