Contaminants in Lesser and Greater Scaup Staging on the Lower Great Lakes

Petrie, Scott A.; Badzinski, Shannon S.; Drouillard, Ken G.

doi:10.1007/s00244-006-0110-7

Cited by 24 publications

(18 citation statements)

References 44 publications

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“…Given these consistently low levels of contaminants in females and eggs across the breeding range of lesser scaup, it appears unlikely that females are importing deleterious levels of contaminants from wintering and spring staging areas and depurating those contaminants into their clutches. This is further corroborated by Petrie et al (2007) who recently found OC levels in spring staging scaup below thresholds known to cause reproductive impairment. However, earlier studies did detect elevated levels of OCs in lesser scaup on wintering and spring staging areas (Mazak et al 1997;Hothem et al 1998;Custer et al 2000).…”

Section: Discussionsupporting

confidence: 84%

Breeding strategy and organochlorine contamination of eggs in lesser scaup (Aythya affinis)

Warren

Cutting

2010

Ecotoxicology

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We explored relationships between breeding strategy and contaminant importation and depuration into lesser scaup (Aythya affinis) eggs. Our primary hypothesis was that females accumulate organochlorine (OC) contaminants in lipid reserves obtained on wintering and spring staging areas and depurate those contaminants into eggs on the breeding area proportional to the amount of endogenous reserves used for egg formation. Egg collection occurred at Red Rock Lakes National Wildlife Refuge, Montana, in 2006 for contaminant and stable isotope analysis. Eggs were assayed for 22 lipophilic OCs and endogenous lipid reserves for each egg were estimated using carbon (δ(13)C) stable isotope values. Of the 22 OC analytes tested for, only p,p'-DDE was detected in all samples, oxychlordane was detected in 56%, and no other OC analytes tested for were detected in >50% of samples. The mean percent contribution of endogenous reserves to egg lipids in scaup was 37.9 ± 0.05%, ranging from 0-88.2%. We found little support for the hypothesized relationship between breeding strategy and egg contaminant levels. No significant trend was observed for endogenous reserves and egg contaminant levels of p,p'-DDE or oxychlordane (R (2) < 0.01, P = 0.792; R (2) < 0.01, P = 0.674, respectively). Thus, our results did not indicate that breeding females are importing contaminants from wintering or spring staging areas and depurating those contaminants into their clutches.

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Section: Discussionsupporting

confidence: 84%

Breeding strategy and organochlorine contamination of eggs in lesser scaup (Aythya affinis)

Warren

Cutting

2010

Ecotoxicology

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“…Accumulation of toxicants may lead to mortality and sub-lethal effects such as altered growth, reproduction, and behaviour (Flemming and Trevors, 1989;Custer and Custer, 2000;Santore et al, 2002;Custer et al, 2003;Petrie et al, 2007). Metal accumulation has been implicated in many of these effects.…”

Section: Introductionmentioning

confidence: 99%

“…For example, cadmium transfer from zebra mussels to the tufted duck (Aythya fuligula) has resulted in behavioural disturbances in adults, growth retardation, and embryonic mortality (De Kock and Bowmer, 1993). Selenium toxicity impacts staging, winter body condition and health of lesser and greater scaup (Aythya affinis and Aythya marila), diving ducks that feed primarily on dreissenids (Custer and Custer, 2000;Custer et al, 2003;Petrie et al, 2007). Accumulation of copper may cause mortality and sub lethal effects such as altered growth, reproduction, and behaviour in fish and macroinvertebrate species (Flemming and Trevors, 1989).…”

Section: Introductionmentioning

confidence: 99%

A dominance shift from the zebra mussel to the invasive quagga mussel may alter the trophic transfer of metals

Matthews

Schipper

Hendriks

et al. 2015

Environmental Pollution

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a b s t r a c tBioinvasions are a major cause of biodiversity and ecosystem changes. The rapid range expansion of the invasive quagga mussel (Dreissena rostriformis bugensis) causing a dominance shift from zebra mussels (Dreissena polymorpha) to quagga mussels, may alter the risk of secondary poisoning to predators. Mussel samples were collected from various water bodies in the Netherlands, divided into size classes, and analysed for metal concentrations. Concentrations of nickel and copper in quagga mussels were significantly lower than in zebra mussels overall. In lakes, quagga mussels contained significantly higher concentrations of aluminium, iron and lead yet significantly lower concentrations of zinc66, cadmium111, copper, nickel, cobalt and molybdenum than zebra mussels. In the river water type quagga mussel soft tissues contained significantly lower concentrations of zinc66. Our results suggest that a dominance shift from zebra to quagga mussels may reduce metal exposure of predator species.

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“…At the Great Lakes, selenium (Se) in livers of waterbirds is commonly recorded at concentrations considered increased [[10 lg g -1 dw (Heinz et al 1989;Heinz 1996)] or potentially harmful [[33 lg g -1 dw (Heinz et al 1989;Heinz 1996;Custer and Custer 2000;Petrie et al 2007;Schummer et al 2010Schummer et al , 2011]. However, Se also can decrease the toxicity of methylmercury (MeHg) through demethylation, whereby a nontoxic Hg-Se protein complex can be formed in the liver and kidneys (Stoewsand et al 1974;Heinz and Hoffman 1998;Eagle-Smith et al 2009).…”

mentioning

confidence: 98%

“…Inorganic contaminants continue to enter the Great Lakes through nonpoint sources and atmospheric deposition and are found in wildlife of the region at measurable and sometimes deleterious concentrations (Custer and Custer 2000;Evers et al 2005;Petrie et al 2007;Hogan et al 2007;Ware et al 2011). Common loons (Gavia immer) are aquatic, piscivorous, high-trophic level feeders and thus could be acquiring potentially harmful concentrations of contaminants either before arrival or during autumn staging on the Great Lakes (Krammar et al 2004).…”

mentioning

confidence: 99%

Hepatic Concentrations of Inorganic Contaminants and Their Relationships with Nutrient Reserves in Autumn-Migrant Common Loons at Lake Erie

Schummer

Petrie

Badzinski

et al. 2011

Arch Environ Contam Toxicol

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Common loons (Gavia immer) are piscivorous, high-trophic level feeders that bioaccumulate inorganic contaminants at concentrations that can negatively impact their health and reproduction. Concentrations of inorganic contaminants, especially mercury (Hg), in blood, organs, and muscle have been quantified in common loons on breeding grounds, but these data are limited for migrating loons. We investigated sex- and age-related hepatic concentrations of inorganic contaminants in common loons (n = 53) that died from botulism and were salvaged at a Great Lakes staging area (i.e., Long Point, Lake Erie) during November 2005. We also investigated if hepatic concentrations of inorganic contaminants influenced lipid, protein, and mineral in our sample of migrant common loons. Last, we determined if there was correlation between Hg and selenium (Se). Consistent with data from breeding grounds, mean concentrations of Hg in liver were approximately 2.5 times greater in adult ([Formula: see text] = 14.64 ± 16.69 μg g(-1)) compared with juvenile birds ([Formula: see text] = 3.99 ± 2.27 μg g(-1)). Elements detected in liver at potentially harmful levels were Hg and Se, of which lipid reserves varied negatively with Hg concentrations but positively with Se concentrations. In addition, Hg and Se were correlated (r = 0.65) at greater then a demethylation threshold (total Hg ≥ 8.5 μg g(-1) dw) but not lower than that. Concentrations of inorganic contaminants did not influence protein and mineral levels in our sample of common loons. Our results suggest that Hg accumulation negatively affects lipid levels in migrant common loons. Results are also consistent with a nontoxic Hg-Se protein complex protecting loons migrating through areas that are relatively Se rich. Although the acquisition of Se during the nonbreeding season may decrease the toxicity of Hg, future research should consider the synergistic Hg-Se effect on reproduction in common loons that migrate through Se-rich locales, such as the Great Lakes.

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Contaminants in Lesser and Greater Scaup Staging on the Lower Great Lakes

Cited by 24 publications

References 44 publications

Breeding strategy and organochlorine contamination of eggs in lesser scaup (Aythya affinis)

Breeding strategy and organochlorine contamination of eggs in lesser scaup (Aythya affinis)

A dominance shift from the zebra mussel to the invasive quagga mussel may alter the trophic transfer of metals

Hepatic Concentrations of Inorganic Contaminants and Their Relationships with Nutrient Reserves in Autumn-Migrant Common Loons at Lake Erie

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