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Reports - 2009

RappHav nr. 02: Condition monitoring in the water column 2008:Oil hydrocarbons in fish from Norwegian waters

The objectives for this study have been:
1. Measure NPD/PAH in haddock liver from the Egersund Bank, the Halten Bank and
the Barents Sea.
2. Determine to what extent fish from the oil installation areas at Tampen and the Halten
Bank contain elevated levels of petroleum hydrocarbons compared with fish from
reference areas at the Egersund Bank and in the Barents Sea by measurements of
metabolites of PAH and alkylphenols in bile of haddock, saithe and long rough dab.
3. Measure vitellogenin levels in blood from male cod from the Egersund Bank,
Tampen, the Halten Bank and the Barents Sea.
4. Study possible genotoxic effects in fish from Tampen compared with fish from the
Egersund Bank/Ling Bank by measurements of hepatic DNA adducts.
5. Perform gonad histology on haddock and long rough dab to study whether differences
can be observed between fish caught at Tampen compared with fish caught at the
Egersund Bank and the Barents Sea.

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