2026-04-13T01:53:12Zhttps://recercat.cat/oai/request
oai:recercat.cat:10256/125922024-06-18T11:07:09Zcom_2072_452955com_2072_2054col_2072_452959col_2072_453080
RECERCAT author Merciai, Roberto author Guasch i Padró, Helena author Kumar, Awadhesh author Sabater, Sergi author García-Berthou, Emili 2024-06-18T11:07:09Z 2024-06-18T11:07:09Z info:eu-repo/date/embargoEnd/2026-01-01info:eu-repo/date/embargoEnd/2026-01-012014-01-01 http://hdl.handle.net/10256/12592 Concentration of trace metals (Al, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb and As) in the muscle of six fish species was analyzed to determine the variation with fish size and fish species in an Iberian river with moderate metal pollution. Al, Fe and Zn were the most abundant metals across sites. Fish size and sampling site explained more variation than fish species, and a high intraspecific variability (among individuals) in metal loads was also observed. Considering the most spread species, concentrations were highest in bleak (Alburnus alburnus) and lowest in gudgeon (Gobio occitaniae) for all the elements. Metal loads were comparable with literature data from contaminated sites, often exceeding recommended European Environmental Quality Standards. The relationships between metal concentration and fish size varied markedly among sites, elements, and fish species. The slopes of these relationships were often significantly heterogeneous, a fact barely acknowledged in the literature, and were often negative, probably due to size-specific metabolic rates related to fish growth. © 2014 Elsevier Inc.This research was supported by Spanish Ministry of Economy and Competitiveness through the project SCARCE (Consolider- Ingenio2010CSD200900065) and the University of Girona (ProjectSING12/09).RM held a doctoral fellowship from the Spanish Ministry of Education (AP2010-4025) Tots els drets reservats info:eu-repo/semantics/embargoedAccess Peixos -- Efecte de la contaminació de l'aigua Fishes -- Effect of water pollution on Peixos -- Efecte dels productes químics Fishes -- Effect of chemicals on Metalls pesants -- Aspectes ambientals Heavy metals -- Environmental aspects Trace metal concentration and fish size: Variation among fish species in a Mediterranean river info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion