Total and methyl mercury accumulation in 1994–1995 Lake Michigan lake trout and forage fish

Raymond, Brian; Rossmann, Ronald

doi:10.1016/j.jglr.2009.05.004

Cited by 14 publications

(11 citation statements)

References 31 publications

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“…To the best of our knowledge, our study was the first to assess the ratio of MeHg concentration to Hg concentration in lake whitefish. Typically, MeHg is the predominant form of mercury in fish [24,32]. However, only 16% of the Hg found in fillets of white perch (Morone americana) from the Hackensack River (NJ, USA) was MeHg, with the remainder of the Hg being inorganic mercury [33].…”

Section: Discussionmentioning

confidence: 99%

“…Nearly all of the Hg found in mummichogs (Fundulus heteroclitus) from the Hackensack River was MeHg [33]. Raymond and Rossmann [32] determined that between 60% and 70% of the Hg found in alewives (Alosa pseudoharengus) from Lake Michigan was MeHg, whereas all (100%) of the Hg in Lake Michigan lake trout was MeHg. These researchers partly attributed the disparity in these percentages to a difference in trophic levels between the two species.…”

Section: Discussionmentioning

confidence: 99%

“…Typically, MeHg is the predominant form found in fish [32], but inorganic mercury can make a substantial contribution to Hg in some cases [33]. When modeling Hg accumulation in fish, all of the Hg found in the fish is often assumed to be MeHg [24].…”

Section: Introductionmentioning

confidence: 99%

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Mercury Accumulation, and the Mercury-PCB-Sex Interaction, in Lake Whitefish (Coregonus clupeaformis)

2016

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Abstract:We determined whole-fish Hg concentrations of 26 female and 34 male adult lake whitefish (Coregonus clupeaformis) from northern Lake Huron captured during November 2010. Subsampling from these 60 fish, Hg concentration was also determined in both somatic tissue and ovaries (n = 5), while methylmercury (MeHg) concentration was determined in whole fish (n = 18). Bioenergetics modeling was used to assess the growth dilution effect on the difference in Hg concentrations between the sexes. Mean whole-fish Hg concentration in females (59.9 ng/g) was not significantly different from mean whole-fish Hg concentration in males (54.4 ng/g). MeHg accounted for 91% of the mercury found in the lake whitefish. Bioenergetics modeling results indicated that the growth dilution effect did not contribute to the difference in Hg concentrations between the sexes. We estimated that females increased in Hg concentration by 17.9%, on average, immediately after spawning due to release of eggs. Using polychlorinated biphenyl (PCB) data for the same 60 lake whitefish from a previous study, we detected a significant interaction between sex and contaminant type (Hg or PCBs), which was attributable to males being significantly higher in PCB concentration than females. Males may be eliminating Hg at a faster rate than females.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Mercury Accumulation, and the Mercury-PCB-Sex Interaction, in Lake Whitefish (Coregonus clupeaformis)

2016

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“…Similarly, between 94 and 100% of the Hg found in muscle tissue of 11 of 12 species of fish was MeHg, while 86% of the Hg found in its muscle tissue was MeHg in one of the 12 species of fish [52]. The percentage of Hg represented by MeHg was somewhat less in Lake Michigan alewife (Alosa pseudoharengus), with the mean value between 60 and 70% [18]. In contrast, only 16% of the Hg in fillets of white perch (Morone americana) from the Hackensack River (New Jersey, USA), an area where mercury was directly discharged via industrial activity, was MeHg, and the remaining 84% was inorganic mercury [19].…”

Section: Discussionmentioning

confidence: 98%

“…For example, 92% of the Hg in summer flounder from the New Jersey coast was MeHg [42], 91% of the Hg in burbot from Great Slave Lake was MeHg [50], and 91% of the Hg in lake whitefish from Lake Huron was MeHg [51]. Further, all (100%) of the Hg in Lake Erie burbot and Lake Michigan lake trout was estimated to be MeHg [18,50]. Similarly, between 94 and 100% of the Hg found in muscle tissue of 11 of 12 species of fish was MeHg, while 86% of the Hg found in its muscle tissue was MeHg in one of the 12 species of fish [52].…”

Section: Discussionmentioning

confidence: 99%

Ratio of Mercury Concentration to PCB Concentration Varies with Sex of White Sucker (Catostomus commersonii)

et al. 2018

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Abstract:The whole-fish total mercury (Hg) concentrations were determined in 25 mature female and 26 mature male white suckers (Catostomus commersonii) caught during their spawning run in the Kewaunee River, a tributary to Lake Michigan. The age of each fish was estimated using thin-sectioned otoliths, and total length (TL) and weight were determined for each fish. When adjusted for the effect of age, males were found to be 7% higher in Hg concentration than females. Nearly all (about 98%) of the Hg found in the white suckers was determined to be methylmercury. In an earlier study on the same 51 white suckers from the Kewaunee River spawning run, males were found to be 18% higher than females in polychlorinated biphenyl (PCB) concentration. We determined that the ratio of Hg concentration to PCB concentration in females was significantly higher than that in males. Thus, sex significantly interacted with contaminant type (Hg or PCBs) in determining contaminant concentrations. The most plausible explanation for this interaction was that males eliminated Hg at a faster rate than females, most likely due to the boosting of the Hg-elimination rate by certain androgens such as testosterone and 11-ketotestosterone. Hg concentrations in the white suckers were well below federal guidelines for fish consumption.

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Contaminants and Ecotoxicology

Muir

Evans

Murphy

et al. 2021

The Lake Charr Salvelinus Namaycush: Biology, Ecology, Distribution, and Management

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Total and methyl mercury accumulation in 1994–1995 Lake Michigan lake trout and forage fish

Cited by 14 publications

References 31 publications

Mercury Accumulation, and the Mercury-PCB-Sex Interaction, in Lake Whitefish (Coregonus clupeaformis)

Mercury Accumulation, and the Mercury-PCB-Sex Interaction, in Lake Whitefish (Coregonus clupeaformis)

Ratio of Mercury Concentration to PCB Concentration Varies with Sex of White Sucker (Catostomus commersonii)

Contaminants and Ecotoxicology

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