| Abstract: | We tested the hypothesis that the efficiency with which fish retain polychlorinated biphenyl (PCB) congeners from their food strongly depends on K(ow) and degree of chlorination of the congener. We used diet information, determinations of concentrations of individual PCB congeners in both coho salmon (Oncorhynchus kisutch) and their prey, and bioenergetics modeling to estimate the efficiencies with which Lake Michigan coho salmon retain various PCB congeners from their food. The retention efficiency for the tetrachloro congeners averaged 38%, whereas retention efficiencies for higher chlorinated congeners ranged from 43 to 56%. Not including tetrachloro congeners, we found neither decreasing nor increasing trends in the efficiencies with which the coho salmon retained the PCB congeners from their food with either increasing K(ow), or increasing degree of chlorination of the PCB congeners. We concluded that (a) for PCB congeners with 5-8 chlorine atoms/molecule, K(ow) and degree of chlorination had little influence on the efficiency with which coho salmon retained the various PCB congeners in their food, and (b) the efficiency with which coho salmon retained tetrachloro PCB congeners in their food appeared to be slightly lower than that for higher chlorinated PCB congeners.We tested the hypothesis that the efficiency with which fish retain polychlorinated biphenyl (PCB) congeners from their food strongly depends on Kow and degree of chlorination of the congener. We used diet information, determinations of concentrations of individual PCB congeners in both coho salmon (Oncorhynchus kisutch) and their prey, and bioenergetics modeling to estimate the efficiencies with which Lake Michigan coho salmon retain various PCB congeners from their food. The retention efficiency for the tetrachloro congeners averaged 38%, whereas retention efficiencies for higher chlorinated congeners ranged from 43 to 56%. Not including tetrachloro congeners, we found neither decreasing nor increasing trends in the efficiencies with which the coho salmon retained the PCB congeners from their food with either increasing Kow or increasing degree of chlorination of the PCB congeners. We concluded that (a) for PCB congeners with 5-8 chlorine atoms/molecule, Kow and degree of chlorination had little influence on the efficiency with which coho salmon retained the various PCB congeners in their food, and (b) the efficiency with which coho salmon retained tetrachloro PCB congeners in their food appeared to be slightly lower than that for higher chlorinated PCB congeners. |
| Genre: | Article |
| ProdID: | 70021163 |
| Citation Author: | Madenjian, C. P.; Schmidt, L. J.; Chernyak, S. M.; Elliott, R. F.; Desorcie, T. J.; Quintal, R. T.; Begnoche, L. J.; Hesselberg, R. J. |
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| Citation End Page: | 3773 |
| Citation Issue: | 21 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Science and Technology |
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| Citation Number Of Pages: | 6 |
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| Citation Publisher: | ACS |
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| Citation Search Results Text: | Variation in net trophic transfer efficiencies among 21 PCB congeners; 1999; Article; Journal; Environmental Science and Technology; Madenjian, C. P.; Schmidt, L. J.; Chernyak, S. M.; Elliott, R. F.; Desorcie, T. J.; Quintal, R. T.; Begnoche, L. J.; Hesselberg, R. J. |
| Citation Start Page: | 3768 |
| Citation Volume: | 33 |
| Citation Year: | 1999 |
| Type: | citation/reference |
| Text: | Variation in net trophic transfer efficiencies among 21 PCB congeners; 1999; Article; Journal; Environmental Science and Technology; Madenjian, C. P.; Schmidt, L. J.; Chernyak, S. M.; Elliott, R. F.; Desorcie, T. J.; Quintal, R. T.; Begnoche, L. J.; Hesselberg, R. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1021/es9903882 |
| Date Other: | Fri, 1 Jan 1999 00:00 -0600 |
| Publisher: | ACS |
