IMPOSEX IN HEXAPLEX TRUNCULUS (GASTROPODA, MURICIDAE) - FIRST RESULTS FROM BIOMONITORING OF TRIBUTYLTIN CONTAMINATION IN THE MEDITERRANEAN

被引：104

作者：

AXIAK, V ^{[1
]}

VELLA, AJ ^{[1
]}

MICALLEF, D ^{[1
]}

CHIRCOP, P ^{[1
]}

MINTOFF, B ^{[1
]}

机构：

[1] UNIV MALTA,DEPT CHEM,MSIDA,MALTA

来源：

MARINE BIOLOGY | 1995年 / 121卷 / 04期

关键词：

D O I：

10.1007/BF00349304

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Imposex (the occurrence of penis and vas deferens in females) in Hexaplex trunculus collected from Malta (Central Mediterranean) in 1992 is reported. This phenomenon is related to the levels of tributyltin (TBT) in the organisms as well as in sediments. Imposer indices (relative penis size and vas deferens sequence) are used to biomonitor coastal contamination by TBT for the first time in the Mediterranean. In its response to TBT, H. trunculus is ranked as one of the most sensitive neogastropod species studied so far. Accumulation of TBT and its metabolites in the digestive glands, gonads and the rest of the body are described, and sex-related differences are shown. No preferential female mortalities are recorded in populations exposed to high levels of TBT. However, a reported shift in the size frequency distribution of H. trunculus in contaminated sites, towards bigger snails, may suggest reduced reproductive potential.

引用

页码：685 / 691

页数：7

共 16 条

[1] ENVIRONMENTAL-PROBLEMS CAUSED BY TBT IN FRANCE - ASSESSMENT, REGULATIONS, PROSPECTS [J].