Seasonal and regional variations of metal contamination and condition indicators in yellow perch (Perca flavescens) along two polymetallic gradients. I. Factors influencing tissue metal concentrations

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dc.contributor.authorCouture, Patrice
dc.contributor.authorBusby, Patrick
dc.contributor.authorGauthier, Charles
dc.contributor.authorRajotte, James W.
dc.contributor.authorPyle, Gregory
dc.date.accessioned2014-06-05T23:32:29Z
dc.date.available2014-06-05T23:32:29Z
dc.date.issued2008
dc.descriptionSherpa Romeo green journalen_US
dc.description.abstractThis study examined relationships among water, sediment, diet, and fish tissue metal (Cd, Cu, Ni, Se, and Zn) concentrations in yellow perch from metal gradients in two regions (Sudbury (S), Ontario, and Rouyn-Noranda (RN), Qu´ebec, Canada) in two seasons (spring and summer). The objectives of this study were (1) to examine the influences of aqueous and dietary metal contamination on yellow perch liver and kidney metal accumulation; (2) to compare the seasonal and regional variations in gut content and tissue metal concentrations along the two gradients studied; and (3) to investigate the potential of metals for tissue accumulation under conditions of life-long chronic exposure. Our results suggest a greater aqueous than dietary influence on tissue metal concentrations for all metals examined except Cd, where the opposite was observed. Metals did not accumulate in older fish, except for Cd that accumulated with age in RN, but not S, fish. Regional, but also metal-specific differences in metal handling capacities are proposed. Fish from neither region appeared capable of regulating tissue Cd concentrations, but fish from both regions regulated Zn tightly. Sudbury fish appeared better at regulating tissue Cu, Ni, and perhaps also Se concentrations than RN fish, suggesting acclimation or selection for metal tolerance. There were several significant seasonal effects on tissue metal concentrations. However, close examination of the dataset does not allow proposing the presence of a season-linked mechanism explaining these variations, precluding a modeling approach and implying that repeat sampling within and among years is required for proper ecological risk assessment.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationCouture, P., P. Busby, J. Rajotte, C. Gauthier, and G. Pyle. 2008. Seasonal and regional variations of metal contamination and condition indicators in yellow perch (Perca flavescens) along two polymetallic gradients. I. Factors influencing tissue metal concentrations. Human and Ecological Risk Assessment, 14: 97-125.en_US
dc.identifier.urihttps://hdl.handle.net/10133/3442
dc.language.isoen_CAen_US
dc.publisherTaylor & Francisen_US
dc.publisher.departmentDepartment of Biologyen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionUniversite du Quebecen_US
dc.publisher.institutionLaurentian Universityen_US
dc.publisher.institutionNipissing Universityen_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.publisher.institutionInstitut National de la Recherche Scientifique
dc.subjectMetalsen_US
dc.subjectYellow perchen_US
dc.subjectDietary and aqueous influencesen_US
dc.subjectSeasonalityen_US
dc.subjectRegional variationsen_US
dc.titleSeasonal and regional variations of metal contamination and condition indicators in yellow perch (Perca flavescens) along two polymetallic gradients. I. Factors influencing tissue metal concentrationsen_US
dc.typeArticleen_US
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