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The Prestige oil spill caused changes in the cell structure of mussels
Date:3/25/2009

rmendia studied the cell types of the tissues from the digestive gland of the mussel. Between 2004 and 2005, serious changes were observed in these tissue in the samples from all the locations studied atrophy of certain parts of the digestive gland, for example

Measuring health

The health of the mussels was studied through the control of certain biomarkers. Thus, as a result of the Prestige oil spill, the study showed that the state of health of the mussels had been seriously affected. Signs of recovery were observed in 2004 in the samples from Galicia and in 2005 in those from the Gulf of Bizkaia.

Moreover, changes in the immune response were observed in mussels during the first years of the study and, although this has improved somewhat, the 2006 samples indicate that it still has not recovered the situation prior to the oil spill.

Apart from the mussels, their environment was also studied. In 2003 environmental conditions prejudicial to the health of mussels were recorded. In 2004 the first signs of recovery were noted but, on terminating the research in 2006, they still had not reached conditions of a healthy ecosystem.


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