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Contaminant concentrations in Asian carps, invasive species in the Mississippi and Illinois Rivers.
Environ Monit Assess. 2009 Oct; 157(1-4):211-22.EM

Abstract

Populations of invasive fishes quickly reach extremely high biomass. Before control methods can be applied, however, an understanding of the contaminant loads of these invaders carry is needed. We investigated differences in concentrations of selected elements in two invasive carp species as a function of sampling site, fish species, length and trophic differences using stable isotopes (delta (15)N, delta (13)C). Fish were collected from three different sites, the Illinois River near Havana, Illinois, and two sites in the Mississippi River, upstream and downstream of the Illinois River confluence. Five bighead carp (Hypophthalmichthys nobilis) and five silver carp (Hypophthalmichthys molitrix) from each site were collected for muscle tissue analyses. Freshwater mussels (Amblema plicata) previously collected in the same areas were used as an isotopic baseline to standardize fish results among sites. Total fish length, trophic position, and corrected (13)C, were significantly related to concentrations of metals in muscle. Fish length explained the most variation in metal concentrations, with most of that variation related to mercury levels. This result was not unexpected because larger fish are older, giving them a higher probability of exposure and accumulation of contaminants. There was a significant difference in stable isotope profiles between the two species. Bighead carp occupied a higher trophic position and had higher levels of corrected (13)C than silver carp. Additionally bighead carp had significantly lower concentrations of arsenic and selenium than silver carp. Stable isotope ratios of nitrogen in Asian carp were at levels that are more commonly associated with higher-level predators, or from organisms in areas containing high loads of wastewater effluent.

Authors+Show Affiliations

Illinois Natural History Survey, 1816 South Oak Street, MC 652 Champaign, IL 61820, USA. david.rogowski@ttu.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18850294

Citation

Rogowski, D L., et al. "Contaminant Concentrations in Asian Carps, Invasive Species in the Mississippi and Illinois Rivers." Environmental Monitoring and Assessment, vol. 157, no. 1-4, 2009, pp. 211-22.
Rogowski DL, Soucek DJ, Levengood JM, et al. Contaminant concentrations in Asian carps, invasive species in the Mississippi and Illinois Rivers. Environ Monit Assess. 2009;157(1-4):211-22.
Rogowski, D. L., Soucek, D. J., Levengood, J. M., Johnson, S. R., Chick, J. H., Dettmers, J. M., Pegg, M. A., & Epifanio, J. M. (2009). Contaminant concentrations in Asian carps, invasive species in the Mississippi and Illinois Rivers. Environmental Monitoring and Assessment, 157(1-4), 211-22. https://doi.org/10.1007/s10661-008-0529-6
Rogowski DL, et al. Contaminant Concentrations in Asian Carps, Invasive Species in the Mississippi and Illinois Rivers. Environ Monit Assess. 2009;157(1-4):211-22. PubMed PMID: 18850294.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contaminant concentrations in Asian carps, invasive species in the Mississippi and Illinois Rivers. AU - Rogowski,D L, AU - Soucek,D J, AU - Levengood,J M, AU - Johnson,S R, AU - Chick,J H, AU - Dettmers,J M, AU - Pegg,M A, AU - Epifanio,J M, Y1 - 2008/10/11/ PY - 2008/02/05/received PY - 2008/09/11/accepted PY - 2008/10/14/pubmed PY - 2009/11/13/medline PY - 2008/10/14/entrez SP - 211 EP - 22 JF - Environmental monitoring and assessment JO - Environ Monit Assess VL - 157 IS - 1-4 N2 - Populations of invasive fishes quickly reach extremely high biomass. Before control methods can be applied, however, an understanding of the contaminant loads of these invaders carry is needed. We investigated differences in concentrations of selected elements in two invasive carp species as a function of sampling site, fish species, length and trophic differences using stable isotopes (delta (15)N, delta (13)C). Fish were collected from three different sites, the Illinois River near Havana, Illinois, and two sites in the Mississippi River, upstream and downstream of the Illinois River confluence. Five bighead carp (Hypophthalmichthys nobilis) and five silver carp (Hypophthalmichthys molitrix) from each site were collected for muscle tissue analyses. Freshwater mussels (Amblema plicata) previously collected in the same areas were used as an isotopic baseline to standardize fish results among sites. Total fish length, trophic position, and corrected (13)C, were significantly related to concentrations of metals in muscle. Fish length explained the most variation in metal concentrations, with most of that variation related to mercury levels. This result was not unexpected because larger fish are older, giving them a higher probability of exposure and accumulation of contaminants. There was a significant difference in stable isotope profiles between the two species. Bighead carp occupied a higher trophic position and had higher levels of corrected (13)C than silver carp. Additionally bighead carp had significantly lower concentrations of arsenic and selenium than silver carp. Stable isotope ratios of nitrogen in Asian carp were at levels that are more commonly associated with higher-level predators, or from organisms in areas containing high loads of wastewater effluent. SN - 1573-2959 UR - https://www.unboundmedicine.com/medline/citation/18850294/Contaminant_concentrations_in_Asian_carps_invasive_species_in_the_Mississippi_and_Illinois_Rivers_ L2 - https://doi.org/10.1007/s10661-008-0529-6 DB - PRIME DP - Unbound Medicine ER -