Contaminant residues in snapping turtle (Chelydra s. serpentina) eggs from the Great Lakes-St. Lawrence River basin (1999 to 2000)

Archives of Environmental Contamination and Toxicology
S AshpoleR J Brooks

Abstract

To determine temporal and geographic variations of environmentally persistent pollutants, the concentrations of several contaminants were measured in snapping turtle eggs in 1999 and 2000. Contaminants included polychlorinated biphenyls (PCBs), non- ortho PCBs, polychlorinated dibenzodioxins and furans, organochlorine pesticides, and total mercury. Egg collection sites within the St. Lawrence Area of Concern (AOC) and the Territory of Akwesasne included Turtle Creek, Snye Marsh, and Raquette River. Additional contaminated sites were Gray's Creek (within the St. Lawrence AOC boundary), Coote's Paradise (Hamilton Harbour AOC), and the Territory of Walpole Island (St. Clair AOC). Reference sites were Lake Sasajewun, Algonquin Provincial Park in central Ontario, and in close proximity to the St. Lawrence Area AOC, Hoasic Creek and Cooper Marsh. Eggs from clutches collected from Akwesasne contained the highest concentrations of contaminants. Mean total PCB concentrations for Akwesasne clutches ranged from 1,900 to 61,000 ng/g wet weight (w.w.), which was 360 to 3,100 times higher than the mean concentrations at the reference sites. The high levels of contaminants in eggs, from sites within Akwesasne, were consistent with trends repo...Continue Reading

Citations

Jul 22, 2009·Archives of Environmental Contamination and Toxicology·Larissa SchneiderCamila R Ferrara
Sep 8, 2010·Environmental Toxicology and Chemistry·Louise ChampouxDerek C G Muir
Apr 5, 2016·Chemosphere·Clare Isabel Ming-Ch'eng AdamsBirthe V Kjellerup
Sep 4, 2007·The Veterinary Clinics of North America. Exotic Animal Practice·Christopher L Mariani
Apr 1, 2006·Environmental Science & Technology·Ping SunRonald A Hites
May 2, 2006·Environmental Science & Technology·Ping SunRonald A Hites
Jun 28, 2007·Environmental Science & Technology·Ping SunRonald A Hites

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