Date (Publication)

2003

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
DFO	Colin Levings		Principal investigator
National Institute for Environmental Studies	T. Horiguchi		Principal investigator
The Institute of Environmental Science & Engineering, The Ocean University of Qingdao	Z. Li		Principal investigator
Mitsubishi Chemical Safety Institute, Kashima Laboratory	S. Uno		Principal investigator
Graduate School of Agricultural and Life Sciences, The University of Tokyo	M. Shimizu		Principal investigator
National Institute for Environmental Studies	H. Shiraishi		Principal investigator
National Institute for Environmental Studies	M, Morita		Principal investigator
2WE Associates Consulting Ltd.	J.A.J. Thompson		Principal investigator

Presentation form

Digital document

Name

Marine Environmental Research

Issue identification

57

Other citation details

0141-1136/$ - see front matter # 2003 Elsevier Ltd. All rights reserved. doi:10.1016/S0141-1136(03)00061-8

Purpose

During the PICES Practical Workshop in Vancouver, Canada from May 24 to June 7, 1999, we studied imposex symptoms and tissue concentrations of organotin compounds, such as TBT, in gastropod specimens, and organotin concentrations in tissues of bivalve specimens from Vancouver and Victoria. The present status and temporal trends of imposex and organotin contamination in molluscs around Vancouver are also discussed, and it will be useful to gauge the success of Canadian regulation of TBT.

Status

Completed

Maintenance and update frequency

Not planned

Government of Canada Core Subject Thesaurus

• Pollution

• Pollution prevention

Global Change Master Directory (GCMD) Science Keywords v15.9

• Earth Science > Biological Classification

• Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Bivalves

• Earth Science > Biological Classification > Animals/Invertebrates > Mollusks > Gastropods

DFO Areas

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

DFO Areas

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

Language

English

Character set

UTF8

Topic category

• Oceans

Environment description

14 KB

Description

15 sites around Vancouver and Victoria

Begin

1999-05-27

End

1999-06-07

Supplemental Information

Gastropods and bivalves were collected at 15 sites at Vancouver and Victoria, Canada between 24 May and 7 June, 1999, to establish tissue concentrations of butyltin and phenyltin compounds, to record imposex symptoms in gastropods, and to assess the present status of organotin contamination around Vancouver. No neogastropods (such as Nucella lima) were found around Vancouver. Neogastropod populations could have been extirpated by severe TBT contamination in Vancouver, as relatively high concentrations of TBT were detected in tissues of Mytilus trossulus from Vancouver, and the neogastropods distributed in Vancouver might be sensitive to TBT. Recovery from imposex, however, was observed in neogastropod populations from three sites at Victoria and Mission Point. TBT contamination has continued around Vancouver, arising from continuous use of TBT in antifouling paints for vessels larger than 25 m in length; however, TBT has decreased around Victoria and Mission Point. Different patterns of TBT accumulation in tissue were observed among the bivalve species from Vancouver. The highest TBT concentration detected in Tresus capax suggested some possible adverse effects. TBT was the most predominant butyltin component in almost all bivalve specimens surveyed, suggesting a low rate of TBT metabolism. Phenyltin compounds were not detected in any molluscan specimens in this study.

Distribution format

Name	Version
electronic	none

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Isobel Pearsall	pearsalli@shaw.ca	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://www.dfo-mpo.gc.ca/science/data-donnees/index-eng.html	DFO Science website
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/691cf37f-e4a5-4751-bc37-6e7133939e93/attachments/691cf37f-e4a5-4751-bc37-6e7133939e93.pdf	Contamination of organotin compounds and imposex in molluscs from Vancouver, Canada
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/691cf37f-e4a5-4751-bc37-6e7133939e93/attachments/691cf37f-e4a5-4751-bc37-6e7133939e93.xlsx	Tables

Hierarchy level

Dataset

Statement

Levings produced paper copy. Fraser scanned with Fujitsu Scansnap s1500 (ABBY Finereader OCR software). Data was extracted through Adobe Reader conversion and manual entry into MS Excel.

Metadata

File identifier

691cf37f-e4a5-4751-bc37-6e7133939e93 XML

Metadata language

eng

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2023-12-19T00:05:36.21Z

Metadata standard name

North American Profile of ISO19115:2003 - Geographic information - Metadata

Metadata standard version

NAP - CAN/CGSB-171.100-2009

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Sarah Fraser	fraser.sarahk@gmail.com	Author

Other language

Language	Character encoding
French	UTF8
English	UTF8