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- W2140359256 abstract "Research Article| October 01, 2000 ASSESSMENT OF ARCELLACEAN (THECAMOEBIAN) ASSEMBLAGES, SPECIES, AND STRAINS AS CONTAMINANT INDICATORS IN JAMES LAKE, NORTHEASTERN ONTARIO, CANADA R. Timothy Patterson; R. Timothy Patterson Ottawa Carleton Geoscience Centre and Department of Earth Sciences, College of Natural Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, CANADA (tpatters@ccs.carleton.ca; akumar@ccs.carleton.ca) Search for other works by this author on: GSW Google Scholar Arun Kumar Arun Kumar Ottawa Carleton Geoscience Centre and Department of Earth Sciences, College of Natural Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, CANADA (tpatters@ccs.carleton.ca; akumar@ccs.carleton.ca) Search for other works by this author on: GSW Google Scholar Journal of Foraminiferal Research (2000) 30 (4): 310–320. https://doi.org/10.2113/0300310 Article history received: 15 Sep 1999 accepted: 17 Apr 2000 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation R. Timothy Patterson, Arun Kumar; ASSESSMENT OF ARCELLACEAN (THECAMOEBIAN) ASSEMBLAGES, SPECIES, AND STRAINS AS CONTAMINANT INDICATORS IN JAMES LAKE, NORTHEASTERN ONTARIO, CANADA. Journal of Foraminiferal Research 2000;; 30 (4): 310–320. doi: https://doi.org/10.2113/0300310 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract Conditions in James Lake vary from uncontaminated and nearly neutral pH conditions through most of the lake, to extremely low pH conditions (2.1 in places) contaminated with Fe, Al and SO4 adjacent to an abandoned pyrite mine near the lake outlet. Six assemblages representative of distinct arcellacean habitats were recognized in sediment-water interface samples collected in the lake using Q-mode Cluster Analysis. R-Mode analysis of this distributional data corroborates previous results indicating that arcellacean strains from within the same species are useful for discriminating environments.Cucurbitella tricuspis dominates most samples and had to be deleted from analysis to determine benthic faunal relationships. This species is seasonally planktic and thus readily transported; it should not be considered in intralake studies. Arcella vulgaris overwhelmingly dominates extremely hostile low pH environments (<5.5) near the old mine site in samples where Shannon Diversity Index values of <1.000 are recorded. The highly variable pH in James Lake permitted the determination of precise boundary conditions for distribution of this species. These results indicate that Difflugia protaeiformis “claviformis” is an ideal indicator of industrial contamination under higher pH conditions. The D. protaeiformis “amphoralis” and “acuminata” strains are more closely linked to uncontaminated muddy substrates characterized by high proportions of diatoms, a probable important food source. The presence of Lesquerasia spiralis seems to be partially linked to substrate type with greater numbers typically found in coarser sediments. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2140359256 title "ASSESSMENT OF ARCELLACEAN (THECAMOEBIAN) ASSEMBLAGES, SPECIES, AND STRAINS AS CONTAMINANT INDICATORS IN JAMES LAKE, NORTHEASTERN ONTARIO, CANADA" @default.
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