Recapture progress of the abalone which did releasing of marked abalone in Kanagawa prefecture [Japan]
2007
Imai, T.(Kanagawa-ken. Fisheries Technology Center, Miura (Japan))
I collected recapture information of abalone releasing of marked shell performed in Kanagawa from 1965 to 1989 and gathered the number of years and growth rate between days to reach recapture according to a kind classification of a from 2 to 6 cm shell length abalone size at the time of release. As for Haliotis discus discus and H. gigantia, there was recapture from 40% to 100% after release at both release size except shell diameter 4 cm group by 4 from three years, and, as for H. madaka, there was recapture from 45% to 62% after release by 2 from 1. As for the Haliotis discus discus release into with size of shell diameter 2 -6cm, 50% were done recapture of with 12 cm grade from 30% of all recapture population, and, as for H. gigantia, as for 55%, H. madaka a thing from 40% to 90% is done recapture of with shell diameter 11 cm grade.
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