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Scottish Marine and Freshwater Science Volume 3 Number 5: SOTEAG Rocky Shore Monitoring Programme. TBT Contamination in Sullom Voe, Shetland. 2011 Dogwhelk Survey

DescriptionThis report provides the results and assessment of a survey carried out by Marine Scotland Science, Marine Laboratory, Aberdeen as part of a rocky shore monitoring programme undertaken by Aquatic Survey and Monitoring Limited, commissioned by the Shetland Oil Terminal Environmental Advisory Group (SOTEAG), and funded by the Sullom Voe Association.
Official Print Publication Date
Website Publication DateSeptember 07, 2012


M J Gubbins

ISBN 978 1 78256 040 1 (Web only publication)
ISSN 2043-7722
DPPAS 13338

This document is also available in pdf format (2.3MB)

Marine Scotland is the directorate of the Scottish Government responsible for the integrated management of Scotland's seas. Marine Scotland Science (formerly Fisheries Research Services) provides expert scientific and technical advice on marine and fisheries issues. Scottish Marine and Freshwater Science is a series of reports that publish results of research and monitoring carried out by Marine Scotland Science. These reports are not subject to formal external peer-review.



1. Introduction

2. Methods
2.1 The choice of survey sites and dogwhelk sampling procedure
2.2 Determination of the Relative Penis Size Index (RPSI)
2.3 Determination of the Vas Deferens Sequence Index (VDSI)

3. Results
3.1 Toothed adult survey
3.2 Un-toothed adults, sub-adults and juvenile surveys
3.3 Comparison of the 2011 toothed adult dogwhelk survey with previous survey results
3.3.1 Comparison of the degree of imposex in toothed adults
3.3.2 Comparison of incidence of sterility in the females obtained during 1987-2011
3.4. Assessment of imposex aata against OSPAR assessment criteria

4. Discussion

5. Acknowledgements

6. References