English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/20323
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Seasonal Variations of Selected Biomarkers in Sand Gobies Pomatoschistus minutus from the Guadalquivir Estuary, Southwest Spain

AuthorsSolé, Montserrat ; Kopecka, Justyna; Garc a de la Parra, L. M.
Issue DateFeb-2006
PublisherSpringer
CitationArchives of Environmental Contamination and Toxicology 50(2): 249–255 (2006)
AbstractSand gobies, Pomatoschistus minutus, were collected monthly from September 2002 to August 2003 at a station situated 8 km upstream from the mouth of the Guadalquivir estuary (southwest Spain). Physical parameters of the water and selected biomarkers of organic pollution were recorded in the fish to discuss its potential as a sentinel species in estuaries. The biomarkers selected were the activities of catalase (CAT), 7-ethoxyresorufin-O-deethylase (EROD), and glutathione S-transferase (GST) in the liver and acethylcholinesterase (AChE) and lipid peroxidation (LP) in the head. The results showed an increase in total protein synthesis in late spring and early summer coinciding with the reproductive period as well as the release of fresh water from a dam situated 110 km upstream. During the same period, a significant depletion of hepatic GST and head AChE but higher LP levels in this tissue suggest exposure to pesticides such as those applied to crops established along the course of the river and reaching the estuary mostly when the freshwater discharges occur. Changes in CAT and EROD activities fluctuated randomly and were not noted as seasonally dependent. Biomarker fluctuations in sand goby are discussed as normal seasonal variations, but other variables-such as potential local pollution inputs-cannot be disregarded.
Description7 pages, 2 figures, 1 table
Publisher version (URL)https://doi.org/10.1007/s00244-004-0250-6
URIhttp://hdl.handle.net/10261/20323
DOI10.1007/s00244-004-0250-6
ISSN0090-4341
E-ISSN1432-0703
Appears in Collections:(ICM) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.