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MEPS 267:187-194 (2004)
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Abstract
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Intercalibration of mussel Mytilus edulis clearance rate measurements
J. Kjerulf Petersen1,*, S. Bougrier2,†, A. C. Smaal3, P. Garen2, S. Robert4, J. E. N. Larsen1, E. Brummelhuis3
1National Environmental Research Institute, PO Box 358, Frederiksborgvej 399, 4000 Roskilde, Denmark
2Centre de Recherche en Écologie Marine et Aquacole, IFREMER-CNRS, BP 5, 17137 La Rochelle, France
3Netherlands Institute for Fisheries Research, Centre for Shellfish Research, PO Box 77, 4400 AB Yerseke, The Netherlands
4Laboratoire Conchylicole de Poitou-Charentes, IFREMER, BP 133, 17390 La Tremblade, France
*Email: jkp@dmu.dk
†This paper is written in memory of Serge Bougrier, who died tragically during the project.
ABSTRACT: Clearance rate (CR) was measured in blue mussels Mytilus edulis L. from Aiguillon Bay and the Oosterschelde using 3 different methods: the flow-through method, the bio-deposition method and the indirect or clearance method. CR differed
significantly as a function of the method used and of the origin of the mussels. CR measured with the bio-deposition method were significantly lower than rates measured with the other methods. Results for the flow-through method depended, however, on how
CR was calculated. CR using the flow-through and indirect methods was on average 10.0 l g-1 h-1 in mussels from Aiguillon Bay and 5.3 l g-1 h-1 in mussels from the Oosterschelde. The significantly lower CR of
mussels from Oosterschelde was related to condition index and gill area, but could not entirely be explained by these factors.
KEY WORDS: Clearance rate · Intercalibration · Method · Mussels · Gill area · Condition
Full text in pdf format
Published in MEPS Vol.
267
(2004) on February 19
Print ISSN: 0171-8630; Online ISSN: 1616-1599.
Copyright © Inter-Research, Oldendorf/Luhe, 2004
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