2011-291

Effects of chronic exposure to dispersed oil on selected reproductive processes in adult blue mussels (Mytilus edulis) and the consequences for the early life stages of their larvae

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Title:Effects of chronic exposure to dispersed oil on selected reproductive processes in adult blue mussels (Mytilus edulis) and the consequences for the early life stages of their larvae

Category:

Articles (Tidsskriftartikler)
Authors:Baussant, T.
Bechmann, R.K.
Taban, I.C.
Sanni, S.
Ortiz-Zarragoitia , M.
Cajaraville, M.P.
Research group:Marint miljø (Marine Environment)
Distribution restriction:Open
Published by:Elsevier,
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Additional information:
Marine Pollution Bulletin, Volume 62, Issue 7, July 2011, Pages 1437–1445, DOI:10.1016/j.marpolbul.2011.04.029, - http://www.sciencedirect.com.ezproxy.uis.no/science/article/pii/S0025326X11002311;Published by: Elsevier;

Abstract:
Abstract;Mussels (Mytilus edulis) were continuously exposed to dispersed crude oil ;(0.015–0.25 mg/l) for 7 months covering the whole gamete development cycle. ;After 1 month exposure to 0.25 mg oil/l, the level of alkali-labile phosphates ;(ALP) and the volume density of atretic oocytes in female gonads were higher ;than those in the gonads of control females, indicating that oil affected the ;level of vitellogenin-like proteins and gamete development. Spawning of mussels ;was induced after 7 months oil exposure. Parental oil exposure did not affect ;subsequent fertilization success in clean seawater but this was reduced in ;0.25 mg oil/l. Parental exposure to 0.25 mg oil/l caused both slow development ;and a higher percentage of abnormalities in D-shell larvae 2 days ;post-fertilization; reduced growth 7 days post-fertilization. These effects ;were greatly enhanced when larval stages were maintained at 0.25 mg oil/l. ;Similar studies are warranted for risk assessment prognosis.;;;;;;;;;;;;;

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International Research Institute of Stavanger
Mailing address:
Visiting address:
P.O. Box 8046, N-4068 Stavanger, Norway
Prof. Olav Hanssensvei 15, 4021 Stavanger


Phone:
Fax:

+47 51 87 50 00
+47 51 87 52 00

General email address: firmapost@iris.no