동해 포항 연안 문치가자미(Pseudopleuronectes yokohamae)의 연령과 성장

The age and growth of marbled flounder Pseudopleuronectes yokohamae in coastal waters of the East Sea of Korea off Pohang were determined, by evaluating monthly samples of commercial catches, caught by gill nets and longlines from February 2013 to January 2014. New annuli from annually in P. yokohamae otoliths, and the boundary between the opaque and translucent zones forms from March to May. The relationships between total length (TL) and total weight (TW) were TW=0.009TL3.128 (R2=0.969) for females and TW=0.008TL3.150 (R2=0.964) for males. The TLs at the time of annulus formation, back-calculated from the otolith-length relationship by reference to the von Ber-talanffy growth curves, were Lt=52.63 (1 - exp(-0.231(t+0.033))) for females and Lt=36.22 (1 - exp(-0.400(t+0.117))) for males. Commencing at the age of 3 years, females grew faster than males (P<0.05).