HUA Yuan-Yu, SHI Li-Jun, LI Hai-Yan, ZHANG Xian-Feng. AGE DISCRIMINATION OF TAKIFUGU OBSCURUS ABE[J]. ACTA HYDROBIOLOGICA SINICA, 2005, 29(3): 279-284.
Citation: HUA Yuan-Yu, SHI Li-Jun, LI Hai-Yan, ZHANG Xian-Feng. AGE DISCRIMINATION OF TAKIFUGU OBSCURUS ABE[J]. ACTA HYDROBIOLOGICA SINICA, 2005, 29(3): 279-284.

AGE DISCRIMINATION OF TAKIFUGU OBSCURUS ABE

  • Received Date: May 31, 2004
  • Rev Recd Date: November 19, 2004
  • Published Date: May 24, 2005
  • The characteristics of three kinds of determination materials of Takifugu obscurusAbe,otoliths,vertebra and opercular had been described and compared the similarities and difference and veracity As a result,the otoliths are the best structure of judging age because the annual ring is very evidence and regularity;the vertebra is the better,it is difficultyof measure ;the opercular is only the assistant material1Among the 72 specimens selected to identify the age of fish using three structures,opercular and otoliths provided respectively the lowest (n = 72,62.50 % ) and highest (n = 72,98.61 % ) number of interpretable preparations1Observed ages rangedfrom age 1+to 4+usingotoliths and vertebra,1+to 3+usingopercular1The teeth of Takifugu obscurus Abe also were used for judging the age and we have found out some preparatory result.
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