Polychlorinated Biphenyl Residues: Accumulation in Cayuga Lake Trout with Age

Bache, Carl; Serum, James W.; Youngs, William D.; Lisk, Donald J.

doi:10.1126/science.177.4055.1191

Cited by 49 publications

(13 citation statements)

References 8 publications

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“…This trend is consistent with other studies on CDPEs in which no size-dependent relationship was indicated for Cllo-DPE and total CDPEs in fish [18,31]. The lack of a size-dependent relationship for CDPEs is different from that for PCBs, in which concentrations tend to increase with fish size [32,33].…”

Section: Resultssupporting

confidence: 90%

Chlorinated Diphenyl Ethers in Great Lakes Fish and Their Environmental Implication

Niimi¹,

Metcalfe²,

Huestis³

1994

Environ Toxicol Chem

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Tetra-to decachlorodiphenyl ether (CDPE) concentrations were measured in lake trout and walleye, fish that represent the higher trophic levels in the North American Great Lakes GC MS analyses indicated the mean total CDPE concentrations were 4, 16, 57, and 126 kg/kg in whole fish from Lakes Superior, Huron, Erie, and Ontario, respectively The number of known and unidentified congeners detected above the 0 4 pg/kg detection limit ranged from six to 24 congeners among the lakes, and this number increased with the total concentration of CDPEs The C1, homologue represented 46 to 61% of total CDPEs in Lakes Huron, Erie, and Ontario, and the CIS, Cl,, and C1, homologues represented 78 to 93% of total CDPE concentrations About 83 to 91% of total CDPEs detected in these samples were identified from analytical standards Rank correlation analyses indicated no significant differences among the relative concentration patterns of congeners in Lakes Ontario, Erie, and Huron fish A similar congener pattern was not shown in Lake Superior fish because of relatively higher contributions from unidentified C1, and CI,-DPEs

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Section: Resultssupporting

confidence: 90%

Chlorinated Diphenyl Ethers in Great Lakes Fish and Their Environmental Implication

Niimi¹,

Metcalfe²,

Huestis³

1994

Environ Toxicol Chem

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“…Residues of polychlorinated biphenyls have been widely found in tissues of fish and wildlife (1)(2)(3)(4). Contamination of human adipose tissue and of bovine and human milk has been reported (5)(6)(7)(8).…”

mentioning

confidence: 99%

Polychlorinated Biphenyls: A New Type of Inducer of Cytochrome P-448 in the Liver

Alvares

Bickers

Kappas

1973

Proc. Natl. Acad. Sci. U.S.A.

188

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The CO-difference spectrum of microsomes from rats treated with the polychlorinated biphenyls mixture, Aroclor 1254, has an absorption maximum at 448 nm. With ethylisocyananide as the ligand for reduced microsomes, Aroclor 1254 treatment causes a shift in the 455-nm peak to 453 nm and increases the ratio of absorbance of 455 nm to that at 430 nm from 0.53, obtained with untreated rats, to 1.24. These findings are similar to those seen in rats treated with the polycyclic hydrocarbon, 3-methylcholanthrene, but differ from those that characterize cytochrome P-450 in control or phenobarbitaltreated rats. Aroclor 1254 treatment results in a tripling of cytochrome P-448 content and a 10-fold increase in benzo-[alpyrene hydroxylation. However-unlike 3-methylcholanthrene, but like the phenobarbital type of inducing agents-Aroclor 1254 treatment causes a significant enhancement of ethylmorphine N-demethylase. These data suggest that Aroclor 1254-induced cytochrome P-448 may be catalytically different from the 3-methylcholanthreneinduced P-448 or that the hemoprotein(s) induced by Aroclor 1254 may be a mixture of cytochromes P-448 and P-450 exhibiting catalytic properties of both cytochromes.

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“…Clayton et a (1977) suggested that toxic organic concentrations in the lower trophic levels of pelagic organisms is controlled by equilibrium partitioning between internal lipid pools and toxicants. Previous studies (Bache et al 1972;Veith 1975) have shown that PCB levels increase in certain species of fish with age. Such a trend was not observed for PCBs in the mysids in our study.…”

Section: Discussionmentioning

confidence: 91%

PCBs and other toxicants inMysis relicta

1982

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This research considers the role of Mysis relicta in the recycling of toxic organics in the Lake Michigan ecosystem. Mysids were collected at a station 20 km offshore of Grand Haven, Michigan in spring, summer, and autumn and then size-sorted. In October 1980 and May 1981, plankton samples were collected in two size categories: >78 um and >156 m. Mysid fecal pellets and Pontoporeia hoyi were collected in May 1981 while a fourhorn sculpin (Myoxocephalus quadicornis) was collected in October 1980. Concentrated extracts of all samples were analyzed for chlorinated hydrocarbons using electron capture gas chromatography. Toxic organics detected were, in order of concentration: PCB, DDE, dieldrin, y/-chlordane, and HCB. DDT, DDD, and a-chlordane were detected less frequently. PCB concentrations in mysids were similar to those observed in their plankton diet and there was no evidence of increased bioaccumulation with increased mysid age. Dieldrin and DDE generally occurred in higher concentrations in older than in younger mysids. Dieldrin concentrations were lower in the plankton than in mysids. Certain toxicants (PCBs, DDD, dieldrin, and y-chlordane) occurred in higher concentrations in Pontoporeia hoyi than in mysids. Concentrations in the sculpin generally were intermediate to those in amphipods and mysids. Our study suggests that mysids have a significant role in the recycling of toxic organics and that the characteristic pathways vary with the contaminant.

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Polychlorinated Biphenyl Residues: Accumulation in Cayuga Lake Trout with Age

Cited by 49 publications

References 8 publications

Chlorinated Diphenyl Ethers in Great Lakes Fish and Their Environmental Implication

Chlorinated Diphenyl Ethers in Great Lakes Fish and Their Environmental Implication

Polychlorinated Biphenyls: A New Type of Inducer of Cytochrome P-448 in the Liver

PCBs and other toxicants inMysis relicta

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