Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/16593
Share/Export:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | The roles of food and water in the bioaccumulation of organochlorine compounds in high mountain lake fish |
Authors: | Catalán, Jordi CSIC ORCID; Ventura, Marc CSIC ORCID ; Vives, Ingrid; Grimalt, Joan O. CSIC ORCID | Keywords: | Organochlorine compounds PCBs Organic Pollutants Food web High mountain lakes |
Issue Date: | 15-Jul-2004 | Publisher: | American Chemical Society | Citation: | Environmental Science and Technology 38(16): 4269-4275 (2004) | Abstract: | An integrated study encompassing the distribution of organochlorine compounds (OC) in water, food web (chironomids, terrestrial insects, cladocerans, mollusks, and cyanobacteria), and fish (brown trout) from a high mountain lake (Redon, Pyrenees) is reported. OC distributions in these compartments have been determined to assess their transport routes into fish. Food diets have been estimated by analysis of fish stomach content and food web stable isotopes (δ13C and δ15N). OCs with octanol−water partition coefficient (Kow) higher than 106 showed lower concentra tions in food than expected from theoretical octanol−water partition, indicating that the distribution of these compounds does not reach equilibrium within the life span of the food web organisms (ca. 1 year). On the other hand, the degree of biomagnification in fish increased with Kow, except in the case of the largest compound analyzed (seven chlorine substituents, PCB #180). OC exchange at fish gill and gut has been evaluated using a fugacity model based on the water, food, and fish concentrations. All compounds exhibited a net gill loss and a net gut uptake. A pseudostationary state was only achieved for compounds with log(Kow) < 6. Calculation of fish average residence times for the compounds in apparent steady state gave values of days to a few weeks for HCHs, 1 year for HCB and 4,4‘-DDE, and 2−3 years for 4,4‘-DDT and PCB#28 and PCB#52. Residence times longer than one decade were found for the more chlorinated PCB. | Description: | 7 pages, 4 figures, 5 tables.-- PMID: 15382852 [PubMed].-- Printed version published Aug, 15, 2004. | Publisher version (URL): | http://dx.doi.org/10.1021/es040035p | URI: | http://hdl.handle.net/10261/16593 | DOI: | 10.1021/es040035p | ISSN: | 0013-936X |
Appears in Collections: | (CEAB) Artículos (IDAEA) Artículos |
Show full item record
CORE Recommender
SCOPUSTM
Citations
51
checked on Mar 19, 2024
WEB OF SCIENCETM
Citations
45
checked on Feb 24, 2024
Page view(s)
395
checked on Apr 22, 2024
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.