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Field studies on imposex and organotin accumulation in the rock shell, Thais clavigera, from the Seto Inland Sea and the Sanriku region, Japan.
- Source :
-
The Science of the total environment [Sci Total Environ] 1998 Jun 18; Vol. 214, pp. 65-70. - Publication Year :
- 1998
-
Abstract
- Field studies on imposex and organotin (butyltin and phenyltin) contamination in the Japanese molluscs (the rock shell, Thais clavigera, and the Pacific oyster, Crassostrea gigas) were conducted along the coast of both the Seto Inland Sea and the Sanriku region, Japan, during February-March 1996. The percentage occurrence of imposex in the rock shell, Thais clavigera, was still 100% at all sites surveyed (22 and seven sites in the Seto Inland Sea and the Sanriku regions, respectively). Observed values of the Relative Penis Length (RPL) index (%), defined as the ratio of mean penis length in females to that in males, exceeded 50 at many sites. Sterile individuals whose oviducts were blocked by vas deferens formation were also extensively observed. Tissue concentrations of organotin compounds in the rock shell and the Pacific oyster were higher than those from other areas of Japan. The degree of imposex (RPL index) was correlated with the sum of TBT and TPT concentrations in tissue of the rock shell. Less recovery from imposex in the rock shell and less amelioration of TBT pollution were observed, suggesting that organotin use in antifouling paints has still continued for vessels larger than 25 m in length and that it has influenced imposex symptoms in the rock shell.
- Subjects :
- Animals
Environmental Monitoring
Female
Japan
Male
Mollusca anatomy & histology
Paint analysis
Paint toxicity
Trialkyltin Compounds pharmacokinetics
Trialkyltin Compounds toxicity
Genitalia abnormalities
Genitalia drug effects
Mollusca drug effects
Mollusca metabolism
Organotin Compounds pharmacokinetics
Organotin Compounds toxicity
Water Pollutants, Chemical pharmacokinetics
Water Pollutants, Chemical toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 0048-9697
- Volume :
- 214
- Database :
- MEDLINE
- Journal :
- The Science of the total environment
- Publication Type :
- Academic Journal
- Accession number :
- 9646517
- Full Text :
- https://doi.org/10.1016/s0048-9697(98)00053-9