Esterases activities and lipid peroxidation levels in muscle tissue of the shanny Lipophrys pholis along several sites from the Portuguese Coast

• Type: Article in International Scientific Journal
• Date: 2008

Authors

Sole, M (Author) Other; Lobera, G (Author) Other; Lima, D (Author) Other; reis-henriques, ma (Author) ICBAS; Santos, MM (Author) Other

Journal

Title: Marine Pollution Bulletin

Vol. 56

Pages: 999-1007

ISSN: 0025-326X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 23 Citations

Scopus - 24 Citations

Other information

Authenticus ID: P-003-ZV2

DOI: 10.1016/j.marpolbul.2008.01.016

Abstract (EN): This study is part of a project aiming to validate the use of the intertidal shanny Lipophorys pholis as a sentinel species in pollution monitoring in NW European marine ecosystems. To this end, a characterisation of acethylcholin (AChE), butyrylcholin (BChE) and propionylcholin (PrChE) esterases in L. pholis muscle was performed and the results indicated that AChE was predominant. Furthermore, the use of eserine sulphate and BW284c51 (0.64-800 mu M), and iso-OMPA (0.08-16 mM), confirmed the measurement of true cholinesterases (ChEs) as well as the presence of pseudocholinesterases. The field application of these markers to L. pholis, sampled in seven locations along the Portuguese coast, revealed that fish were likely to be affected by neurotoxic compounds. This was indicated by the significant depletion of AChE (p < 0.05) in animals collected at urban and industrialised sites, compared with those from reference locations. The inclusion of a marker of effect, measured as lipid peroxidation levels in muscle tissue, also revealed the existence of site differences. Overall, the study further validates the utility of L. pholis in pollution monitoring studies.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9