Bioaccumulation of heavy metals by brown trout (Salmo trutta) in the Arkansas River: importance of food chain transfer
| dc.contributor.author | Clements, W. H. (William H.), author | |
| dc.contributor.author | Colorado Water Resources Research Institute, publisher | |
| dc.coverage.spatial | Arkansas River | |
| dc.coverage.spatial | Colorado | |
| dc.date.accessioned | 2007-01-03T04:19:37Z | |
| dc.date.available | 2007-01-03T04:19:37Z | |
| dc.date.issued | 1992 | |
| dc.description | December, 1992. | |
| dc.description.abstract | This study examined uptake and transfer of heavy metals form benthic invertebrates to brown trout in the Arkansas River. Metals in water, aufwuchs, benthic invertebrates, and fish were measured at stations upstream and downstream from California Gulch (GC). Aufwuchs and benthic invertebrates were highly contaminated by heavy metals downstream from California Gulch. The diet of brown trout at the Arkansas River was dominated by benthic invertebrates. These accounted for 40 to 95 percent of the diet of the brown trout. Differences in prey availability between upstream and downstream resulted in the differences. Ephemeroptera comprised a greater portion of the diet of the fish collected upstream from GC, whereas metal-tolerant organisms were more common in the diet of fish from downstream. Elevated metal levels in water and invertebrates downstream resulted in increased metals in gill and gut tissue; however, metal concentrations in brown trout liver and kidney tissue were generally similar both upstream and downstream. The data suggest that fish regulated metal accumulation. The implications of these findings for the recovery of brown trout populations at the Arkansas River are discussed. | |
| dc.description.sponsorship | Grant no. 14-08-0001-2008, Project no. 10; financed in part by the U.S. Department of the Interior, Geological Survey, through the Colorado Water Resources Research Institute. | |
| dc.format.medium | reports | |
| dc.identifier | COMP167.pdf | |
| dc.identifier | CCRICWRI100021CRPT | |
| dc.identifier.uri | http://hdl.handle.net/10217/1025 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation | WWDL | |
| dc.relation.ispartof | Completion Reports | |
| dc.relation.ispartof | Completion report (Colorado Water Resources Research Institute), no. 167 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.subject | Heavy metals -- Bioaccumulation -- Arkansas River | |
| dc.subject | Heavy metals -- Bioaccumulation -- Colorado | |
| dc.subject | Fishes -- Effect of heavy metals on -- Arkansas River | |
| dc.subject | Fishes -- Effect of heavy metals on -- Colorado | |
| dc.subject | Brown trout -- Effect of heavy metals on -- Arkansas River | |
| dc.subject | Brown trout -- Effect of heavy metals on -- Colorado | |
| dc.subject | Food chains (Ecology) -- Arkansas River | |
| dc.subject | Food chains (Ecology) -- Colorado | |
| dc.title | Bioaccumulation of heavy metals by brown trout (Salmo trutta) in the Arkansas River: importance of food chain transfer | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). |