Seasonal variation in imposex intensity of Thais clavigera

Seasonal variation in imposex intensity of Thais

clavigera

LI Zhengyan

【期刊名称】《中国海洋湖沼学报（英文版）》 【年(卷),期】2005(023)002

【摘要】Imposex,specifically caused by TBT pollution,refers to the superimposition

of

male

sexual

characteristics

in

gastropod

females.Seasonal variation of imposex intensity in Thais clavigera from both slightly and severely contaminated sites in Hong Kong waters was studied from 1988 to 1999. The male penis length showed significant difference between both sites and seasons. It was shortest during late autumn and early winter (October to December) and longest during spring and early summer (February to June). Female penis length also showed significant difference between sites. It did not change seasonally, however. The RPS (Relative Penis Size) index was the highest during autumn and early winter, and the lowest during spring and early summer. The VDS (Vas Deferens Sequence) index remained stable throughout the sampling period. This study showed that VDS index is a better indicator when we compare relative intensity of imposex. The comparison can only be meaningful provided the samples from different locations are taken during the same season. 【总页数】6页(163-168)

【关键词】imposex;seasonal variation;Thais clavigera;TBT 【作者】LI Zhengyan

【作者单位】College of Environmental Science and Engineering, Ocean University of China,Qingdao 266003,China;Swire Institute of Marine Science,Department of Ecology & Biodiversity,University of Hong Kong,Hong Kong 【正文语种】中文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-journal-oceanic-limnology-english-edition_thesis/0201252508278.html 【相关文献】

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