Conference Abstracts

(O = oral; P = poster; * indicates presenting author, if other than first author)

Orihel, D., D. Schindler, R. Vinebrooke. Microcystin concentrations across a series of iron-amended lake mesocosms in relation to environmental and biological variables. 68th Canadian Conference for Fisheries Research, Ottawa, Ontario, Jan. 8-11, 2015 (O).

Orihel D., D. O’Connell, P. Van Cappellen, and D. Schindler. Contrasting the behavior of legacy phosphorus in boreal and prairie lakes. Joint Aquatic Sciences Meeting, Portland, Oregon, May 18-23, 2014 (O).

Lehnherr, I., S. Schiff, D. Orihel, D. Schindler, S. Higgins, M. Paterson, D. Callaghan, M. Holoka, J. Venkiteswaran. The importance of sediment return in subsidizing nitrogen requirements for algal production in an experimentally eutrophied lake (Lake 227). 66th Canadian Conference for Fisheries Research (CCFFR), Windsor, Ontario, Jan. 3-5, 2013 (P).

Orihel, D., D. Bird, H. Chen, D. Donald, A. Giani, H. Kling, B. Kotak, P. Leavitt, C. Nielsen, S.Reedyk , R. Rooney, D. Schindler, R. Vinebrooke, S. Watson, R. Zurawell. High microcystin concentrations occur only at low nitrogen-to-phosphorus ratios in Canadian lakes. North American Lake Management Society (NALMS) 32nd International Symposium, Madison, Wisconsin, Nov. 7-9, 2012 (O).

Orihel, D. Tribute to the Experimental Lakes Area: four decades of excellence in freshwater science in support of lake management. NALMS 32nd International Symposium, Madison, Wisconsin, Nov. 7-9, 2012 (O).

Orihel, D., T. Bisbicos, A. Dupuis, M. Paterson, G. Tomy, D. Muir. Debromination of 13C-labelled decabromodiphenyl ether in lake sediments. 38th Aquatic Toxicity Workshop (ATW), Winnipeg, Manitoba, Oct. 2-5, 2011 (P).

Orihel, D., L. Wilson, N. Ballard, R. Vinebrooke, D. Schindler. A technique to control internal phosphorus loading in eutrophic prairie lakes and reservoirs. 38th ATW, Winnipeg, Manitoba, Oct 2-5., 2011 (O).

L. Wilson, Orihel, D., H. Proctor, D. Schindler. Remediation of eutrophic lakes: how does iron treatment affect aquatic invertebrates? 38th ATW, Winnipeg, Manitoba, Oct. 2-5, 2011 (O).

Callaghan, C., D. Orihel, M. Paterson, D. Schindler. Importance of internal phosphorus loading in a hypereutrophic prairie lake and its implications for lake remediation. 38th ATW, Winnipeg, Manitoba, Oct. 2-5, 2011 (P).

Graham, M., D. Orihel, S. Reedyk, D. Schindler, R. Vinebrooke. Environmental factors of phytoplankton diversity and cyanobacterial dominance in prairie ponds. 6th Annual Meeting of the Canadian Society for Ecology and Evolution, Banff, Alberta, May 12-14, 2011 (O).

Orihel, D., S. Watson*, B. Kotak, R. Zurawell. Microcystin concentrations in freshwater lakes in relation to nitrogen-to-phosphorus ratios. 46th Central Canadian Symposium on Water Quality Research. Burlington, Ontario, Feb. 22-23, 2011 (P).

Orihel, D., R. Vinkebrooke, L. Wilson, D. Schindler. Does iron availability control the trophic state of freshwater lakes? Association for the Sciences of Limnology and Oceanography (ASLO) 2011 Aquatic Sciences Meeting, San Juan, Puerto Rico, Feb. 13-18, 2011 (O).

Orihel, D., R. Vinebrooke, D. Schindler. Iron-control of algal blooms in a freshwater lake. 64th CCFFR, Toronto, Ontario, Jan. 6-8, 2011 (O).

Orihel, D., B. Kotak, S. Watson, R. Zurawell. Do high microcystin concentrations only occur at low N:P ratios? 64th CCFFR, Toronto, Ontario, Jan 6-8, 2011 (P).

Orihel D., G. Tomy, D. Muir, C. Darling, A. Dupuis, B. LeBlanc, V. Palace, B. Park, M. Paterson. Bioaccumulation of DecaBDE and its breakdown products by invertebrates and fish in boreal lake enclosures. Society of Environmental Toxicology & Chemistry North America (SETAC) North America 31st Annual Meeting, Portland, Oregon, Nov. 7-11, 2010 (O; 1st Place, Best Student Presentation).

Orihel D., R. Vinebrooke, H. Proctor, L. Wilson, D. Schindler. Management of internal eutrophication in shallow lakes: is iron treatment an effective remediation strategy? ASLO 2010 Summer Meeting, Santa Fe, New Mexico, Jun. 6-11, 2010 (O).

Orihel, D., D. Muir, C. Darling, A. Dupuis, M. Paterson, V. Palace, B. Park, G. Tomy. Fate of decabromodiphenyl ether added to in situ mesocosms at the Experimental Lakes Area. 63rd CCFFR, Winnipeg, Manitoba, Jan. 7-9, 2010 (O).

Orihel, D., D. Muir, C. Darling, A. Dupuis, V. Palace, B. Park, M. Paterson, G. Tomy. An in situ mesocosm study to examine the fate and effects of decabromodiphenyl ether. SETAC North America 30th Annual Meeting, New Orleans, Louisiana, Nov. 19-23, 2009 (O).

Orihel D., D. Muir, C. Darling, A. Dupuis, M. Paterson, V. Palace, B. Park, G. Tomy*. Debromination products of decabromodiphenyl ether detected in sediments and periphyton of DecaBDE‐ammended mesocosms. 12th International Conference on Chemicals and the Environment, Stockholm, Sweden, Jun. 14-17, 2009 (P).

Orihel D., D. Muir*, C. Darling, A. Dupuis, V. Palace, B. Park, M. Paterson, G. Tomy. Debromination of decabromodiphenyl ether: evidence from a field experiment. SETAC Europe 19th Annual Meeting, Göteborg, Sweden, May 31-Jun. 4, 2009 (P).

Blanchfield, P., D. Orihel, P. Biro. The influence of growth rate on mercury levels in fish: insights from whole-lake experiments. 62nd CCFFR, Ottawa, ON, Jan 9-11, 2009 (O).

Orihel, D., D. Muir, C. Darling, A. Dupuis, V. Palace, B. Park, M. Paterson, G. Tomy. Fate of decabromodiphenyl ether added to mesocosms in a boreal lake: preliminary sediment results. SETAC North America 29th Annual Meeting, Tampa, Florida, Nov. 16-20, 2008 (P).

Orihel, D., D. Schindler. Iron treatment: a possible strategy to control internal phosphorus loading in Alberta’s lakes? NALMS 28th International Symposium, Lake Louise, Alberta, Nov. 11-14, 2008 (O). 

Blanchfield P., D. Orihel, P. Biro. The effect of growth rate on mercury levels in fish: a replicated, whole-lake experiment. 8th International Conference on Mercury as a Global Pollutant (ICMGP), Madison, Wisconsin, Aug. 6-11, 2006 (P).

Orihel, D., M. Paterson, R. Bodaly, P. Blanchfield, H. Hintelmann, C. Gilmour. MESOSIM: an experimental simulation of different rates of atmospheric mercury deposition in a boreal lake. 8th ICMGP, Madison, Wisconsin, Aug. 6-11, 2006 (O).

Orihel, D., M. Paterson, R. Bodaly, P. Blanchfield, H. Hintelmann, C. Gilmour. Relative importance of newly-deposited mercury in the environment and food web of a boreal lake. 8th ICMGP, Madison, Wisconsin, Aug. 6-11, 2006 (P).

Paterson M., C. Podemski, P. Blanchfield, H. Hintelmann, D. Orihel, K. Sandilands. Bioaccumulation in the aquatic food web of enriched stable isotopes of Hg following whole-ecosystem additions: results from the METAALICUS project. 8th ICMGP, Madison, Wisconsin, Aug. 6-11, 2006 (O).

Gilmour, C., D. Krabbenhoft, D. Orihel, A. Heyes, R. Mason. Response of methylmercury production to changes in Hg loading: A comparison of Hg isotope addition studies. 7th ICMGP, Ljubljana, Slovenia, Jun. 27-Jul 2, 2004 (O).

Orihel, D., M. Paterson, P. Blanchfield, H. Hintelmann, C. Gilmour, R. Bodaly. Bioaccumulation of methylmercury in aquatic food webs in response to increases in atmospheric mercury deposition. 7th ICMGP, Ljubljana, Slovenia, Jun. 27-Jul. 2, 2004 (O).

Poulain, A., D. Orihel, M. Amyot, M. Paterson, G. Southworth, H. Hintelmann. Dissolved gaseous mercury formation and evasion in boreal lake enclosures spiked with inorganic mercury. 7th ICMGP, Ljubljana, Slovenia, Jun. 27-Jul 2, 2004 (P).

Orihel, D., P. Blanchfield, M. Paterson, H. Hintelmann, C. Gilmour. An experimental approach to determining the relationship between atmospheric mercury deposition and mercury levels in freshwater fish. 56th CCFFR, Ottawa, Ontario, Jan. 2-5, 2003 (O).