Indirect Evidence on Sex Reversal of Sinonovacula constricta (Bivalvia: Euheterodonta) and Gomphina veneriformis (Bivalvia: Veneridae)

Abstract

This study attempts to propose the possibility of the sex reversal in Sinonovacula constricta and Gomphina veneriformis by confirming the changes in the sex ratio with the shell length in the same population level. For analysis of sex ratio, 100 individuals of S. constricta (SL 26.5-95.0 mm) and 2385 individuals of G. veneriformis (SL 15.1-60.1 mm) were used. Sex was analyzed histologically. Both species displayed the tendency of increase in the female proportion with increase in shell length. In this study, changes in the sex ratio in accordance with the growth of S. constricta and G. veneriformis are determined to be indirect evidence that signifies their sex reversal.

Sex and Sex Reversal of Bivalves

“…Wright and Lindberg (1979) (Burton et al, 1996). (Orton, 1933;Galtsoff, 1964;Thompson et al, 1996;Guo et al, 1998;Gosling, 2004;Park et al, 2012) 를 비롯하여 가리비과 (Pectinidae) (Osanai, 1975;Ventilla, 1982), 백합과 (Veneridae) (Eversole, 2001;Lee et al, 2012;Shin et al, 2014) (Heller, 1993;Eversole, 2001;Gosling, 2004 Pecten latiauritus Mackie (1984) Patinopecten yessoensis Osanai (1975), Ventilla (1982) Argopecten irradians Sastry (1979) Menzel (1989) Gomphina veneriformis Shin et al (2014) Ruditapes philippinarum Lee C. rivularis Asif (1979) C. virginica Galtsoff (1964), Mackie (1984), Thompson et al (1996) C. madrasensis Asif (1979) Ostrea edulis Orton (1933), Walne (1974) O. lurida Coe (1934) Saccostrea glomerata Asif (1979) S. cucculata Asif (1979) Pteriidae Pinctada M Sastry (1979) F: freshwater, M: marine (Osanai, 1975;Ventilla, 1982). (Menzel, 1989).…”