Age Indicators of Big Eye, Priacanthus macracanthus in the East China Sea.
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概要
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A total of 762 specimens of big eye, <I>Priacanthus macracanthus</I> caught by bull trawl in the East China Sea, were examined to obtain information about the validity of hard tissues as age indicators. Of the 12 hard tissues examined, including scale, otolith and vertebra, growth marks on the mesopterygoid were most clearly recognized. Mesopterygoid length was measured from the focus to the outer margin along a line perpendicular to the sagittal plane of the body. The percentage of specimens for which growth marks were able to be measured in the present study was higher than the percentage reported in a previous study in which scales were used. The relationship between the fork length and the mesopterygoid length was highly correlated, and it is clear that the growth increments corresponded to equal time intervals from the WALFORD's diagram. We conclude that mesopterygoids are valid age indicators.
- 日本水産増殖学会の論文
日本水産増殖学会 | 論文
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