Decreases in condition and fecundity of freshwater fishes in a highly polluted reservoir
dc.contributor.author
dc.date.accessioned
2016-05-05T07:20:33Z
dc.date.available
2016-05-05T07:20:33Z
dc.date.issued
2010-07-01
dc.identifier.issn
0049-6979
dc.identifier.uri
dc.description.abstract
Despite many efforts for pollution abatement in aquatic ecosystems, there are still some cases of high accumulation of industrial pollutants due to past activities. In Flix reservoir (Ebro River, Spain), there are around 200,000-360,000 tons of industrial pollutants with a high concentration of heavy metals and organochlorides due to the activity of an organochlorine industry during more than half a century. This exceptional amount of pollutants provides a good opportunity (and need) to analyse their effects on fish populations under natural conditions, which is rarely available to ecotoxicologists. We compared the reproductive traits and prevalence of diseases and parasites at this impacted area with a neighbouring upstream reservoir unaffected by the pollution (reference sites) and also to downstream sites. Deformity, eroded fin, lesion and tumour (DELT) anomalies and ectoparasites were clearly more frequent at the impacted area for several fish species (common carp, roach and pumpkinseed). A significant negative impact of Flix reservoir on condition (eviscerated and liver weights, adjusted for fish size with analysis of covariance) and reproductive traits (gonadal weight and number of mature eggs, adjusted for fish size) was also detected for several fish species. The responses to the pollutants were species-specific, and common carp (Cyprinus carpio) was the species with the clearest effects on fitness-related traits at the impacted area, despite also being among the most tolerant to pollution
dc.description.sponsorship
This study was financially supported by the Spanish Ministry of the Environment and the Catalan Water Agency (MOBITROF project to J.O. Grimalt), the Spanish
Ministry of Education (CGL2006-11652-C02-01/BOS) and the Government of Catalonia (Catalan Government Distinction Award for University Research 2004 to EGB)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Springer Verlag
dc.relation
info:eu-repo/grantAgreement/MEC//CGL2006-11652-C02-01/ES/EXITO INVASOR DE LA GAMBUSIA (GAMBUSIA HOLBROOKI): PLASTICIDAD ECOLOGICA/
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s11270-009-0245-z
dc.relation.ispartof
© Water, Air, and Soil Pollution, 2010, vol. 210, núm. 1, p. 231-242
dc.relation.ispartofseries
Articles publicats (D-CCAA)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Decreases in condition and fecundity of freshwater fishes in a highly polluted reservoir
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
012709
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
1573-2932