title: Spatial variability of metal bioaccumulation in estuarine killifish (Fundulus heteroclitus) at the Callahan mine superfund site, Brooksville, ME.
abstract: The former Callahan Mine Site in Brooksville, ME, is an open-pit, hardrock mine site in an intertidal system, thus providing a unique opportunity to evaluate how metal-enriched sediments and overlying water impact estuarine food webs. Copper, zinc, cadmium, and lead concentrations in sediment, whole water, and Atlantic killifish (Fundulus heteroclitus) were evaluated at sites in Goose Pond (GP; Callahan Mine Site) and at reference sites. The metal concentrations of sediment, water, and fish were spatially distinct and significantly greater at the mine site than in the reference estuary. Sediment concentrations were particularly elevated and were above probable effects levels for all four metals adjacent to the tailings pile. Even in this well-mixed system, water metal concentrations were significantly elevated adjacent to the tailings pile, and concentrations of Cu and Zn were above ambient water-quality criteria for chronic marine exposure. Neither organic matter in the sediment nor salinity or pH of the water explained the metal concentrations. Adjacent to the tailings pile, killifish metal body burdens were elevated and were significantly related to both sediment and aqueous concentrations. In conclusion, (1) the contaminated sediment and seepage from the tailings impoundment and waste rock pile no. 3 create a continual flux of metals into the water column, (2) the metals are bioavailable and bioconcentrating as evident in the killifish tissue concentrations, and (3) Callahan Mine is directly affecting metal bioaccumulation in fauna residing in the GP estuary and, potentially, in Penobscot Bay by the way of “trophic nekton relay.”
authors.forename: Hannah J
authors.initials: HJ
authors.lastname: Broadley
authors.forename: Kate L
authors.initials: KL
authors.lastname: Buckman
authors.forename: Deenie M
authors.initials: DM
authors.lastname: Bugge
authors.forename: Celia Y
authors.initials: CY
authors.lastname: Chen
mesh_terms: D000818:Animals; D004784:Environmental Monitoring; D052918:Environmental Restoration and Remediation; D023781:Fundulidae / Q000378:metabolism*; D019015:Geologic Sediments / Q000737:chemistry; D008281:Maine; D008670:Metals / Q000032:analysis / Q000378:metabolism*; D008906:Mining; D062206:Spatial Analysis; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical
references.citation: Proc Natl Acad Sci U S A. 2011 Apr 12;108(15):6193-8
references.pmid: 21444822
references.citation: Environ Toxicol Chem. 2007 Apr;26(4):787-94
references.pmid: 17447565
references.citation: Environ Health Perspect. 2002 Apr;110 Suppl 2:221-31
references.pmid: 11929732
references.citation: Chemosphere. 2009 Sep;76(10):1416-27
references.pmid: 19628251
references.citation: Environ Pollut. 1992;76(2):89-131
references.pmid: 15091993
references.citation: J Environ Monit. 2011 Jul;13(7):1961-74
references.pmid: 21597644
references.citation: Environ Sci Technol. 2007 Jun 1;41(11):4164-71
references.pmid: 17612206
references.citation: Bull Environ Contam Toxicol. 1976 Aug;16(2):197-202
references.pmid: 963323
references.citation: Arch Environ Contam Toxicol. 2010 Aug;59(2):301-11
references.pmid: 20101401
references.citation: Pediatr Clin North Am. 2007 Feb;54(1):155-75, x
references.pmid: 17306689
references.citation: Environ Pollut. 1997;96(1):1-11
references.pmid: 15093426
references.citation: Environ Sci Technol. 2006 Nov 15;40(22):6996-7004
references.pmid: 17154007
references.citation: Mar Pollut Bull. 2008 Nov;56(11):1862-70
references.pmid: 18801544
references.citation: Environ Toxicol Chem. 2011 Sep;30(9):2107-14
references.pmid: 21688308
references.citation: Environ Toxicol Chem. 2003 May;22(5):1017-37
references.pmid: 12729211
references.citation: Arch Environ Contam Toxicol. 2005 Jan;48(1):108-17
references.pmid: 15657812
references.citation: Proc Biol Sci. 2012 Feb 7;279(1728):427-33
references.pmid: 21733895
references.citation: Environ Pollut. 1993;82(1):13-22
references.pmid: 15091794
references.citation: J Wildl Dis. 2011 Jul;47(3):650-60
references.pmid: 21719830
references.citation: Sci Total Environ. 1998 Aug 28;219(2-3):117-35
references.pmid: 9802246
references.citation: Toxicology. 2002 Dec 27;181-182:531-6
references.pmid: 12505363
references.citation: Sci Total Environ. 2011 Mar 15;409(8):1589-602
references.pmid: 21315427
references.citation: Sci Total Environ. 2009 Sep 1;407(18):5156-61
references.pmid: 19580992
references.citation: Aquat Toxicol. 2013 Jan 15;126:242-55
references.pmid: 23247545
references.citation: Environ Monit Assess. 2010 Apr;163(1-4):619-41
references.pmid: 19347594
references.citation: Environ Toxicol Chem. 2011 Mar;30(3):747-56
references.pmid: 21154840
references.citation: Environ Pollut. 2006 Aug;142(3):418-31
references.pmid: 16406165
references.citation: Arch Environ Contam Toxicol. 1998 Oct;35(3):447-56
references.pmid: 9732476
references.citation: Environ Pollut. 2011 Jun;159(6):1499-509
references.pmid: 21470729