熊本県沿岸域の巻貝における環境ホルモンの影響評価(第3報) : 環境教育の教材として用いるイボニシの採取時間について

概要

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We have previously reported that the practice using rock shells is useful for environmental education. In this practice, the precise distinction of the sex of rock shells is very important. However, our preceding study demonstrated that there are many rock shells that are difficult to determine the sex. The purpose of the presentstudy was to obtain information about a suitable period for collection of female rock shells inhabiting in Kumamoto harbor, by examining the maturity of their ovary. As a result, the maturity of the ovary in femalerock shells was observed during periods from beginning of June to the end of August. In addition, since imposex in female rock shells inhabiting in the Kumamoto coastal waters was not found, it is likely that thecontamination of organotin compounds is improved.
熊本大学の論文
2006-11-30