Evaluation of the Remedial Action Plan goal for dissolved oxygen in Hamilton Harbour: A goal based on habitat requirements for Cisco
Keywords:
Lake Ontario, hypoxia, Area of Concern, thermal habitat volumeAbstract
The Hamilton Harbour Remedial Action Plan has adopted a dissolved oxygen goal for restoring habitat in the pelagic portion of Hamilton Harbour based on the ecological needs of Cisco (Coregonus artedii), a fish formerly abundant in Hamilton Harbour. The goal for dissolved oxygen is based on retaining an adequate volume of optimum Cisco habitat characterized as temperature <20°C and dissolved oxygen >6 mg l−1 during the June to September period. The goal also specifies minimum habitat requirements for when optimum conditions are not achieved, that being a smaller volume of refuge habitat with temperature <20°C and dissolved oxygen >3 mg l−1 for no more than 2 weeks per year. Weekly temperature and dissolved oxygen profiles during May to October, 1987 to 2012 in the center of Hamilton Harbour were assessed to evaluate optimum and refuge Cisco habitat relative to the Remedial Action Plan goal for dissolved oxygen. This goal was met only in 2009. However, this was fortuitous, based on a combination of cooler water temperatures in May and June and exchanges of cool oxygenated water from Lake Ontario. From 1987 to 2002 optimum habitat was estimated to be absent at least one week and up to seven weeks during June to September. Cisco could not have survived in Hamilton Harbour during six of these years when refuge habitat was absent for one or two weeks. Since 2003, Cisco habitat in Hamilton Harbour improved markedly, as some refuge habitat was always present. As well, the number of weeks with inadequate refuge habitat, and with no optimum habitat has declined. These improvements in Cisco habitat since 2003 were related to higher dissolved oxygen in the mid-depths of Hamilton Harbour.
References
Bowlby, J. N., Richards, A., 2008. Proposed dissolved oxygen goals for the offshore habitat of Hamilton Harbour, based on a fish management objective for Lake Herring. Ont. Min. Nat. Resour. Lake Ontario Management Unit Report LOA 08.08.
Bowlby, J. N., McCormack, K., Heaton, M. G., 2010. Hamilton Harbour and Watershed Fisheries Management Plan. Ont. Min. Nat. Resour. and Royal Botanical Gardens, Burlington, ON.
Christie, G. C., Regier, H. A., 1988. Measures of optimal thermal habitat and their relationship to yields of four commercial fish species. Can. J. Fish. Aquat. Sci. 45, 301–314.
Christie, W.J., 1973. A review of the changes in the fish species composition of Lake Ontario. Great Lakes Fish. Comm. Tech. Rep. No. 23.
Edsall, T. A., Colby, P. J., 1970. Temperature tolerance of the young-of-the-year Cisco, Coregonus artedi. Trans. Am. Fish. Soc. 99, 526–531.
Elrod, J. H., Schneider, C. P., 1987. Seasonal bathythermal distribution of juvenile lake trout in Lake Ontario. J. Great Lakes Res., 13, 121–34.
Frey, D.G., 1955. Distributional ecology of the cisco (Coregonus artedii) in Indiana. Invest. Indiana Lakes Streams 4, 177–228.
Hamilton Harbour Remedial Action Plan (HHRAP) Office, 2012. Hamilton Harbour Remedial Action Plan Beneficial Uses: 2012 Fact Sheets. Hamilton Harbour Remedial Action Plan Stakeholder Forum.
Hiriart-Baer, V. P., Milne, J., Charlton M. N., 2009. Water quality trends in Hamilton Harbour: Two decades of change in nutrients and chlorophyll a. J. Great Lakes Res. 35, 293–301.
Hiriart-Baer, V.P., Boyd, D., Long, T., Charlton, M.N., Milne, J.E., 2016. Hamilton Harbour over the last 25 years: Insights from a long-term comprehensive water quality monitoring program. Aquat. Ecosyst. Health Mgmt. 19(2), 124–133.
Holmes, J. A., Whillans, T. H., 1984. Historical review of Hamilton Harbour fisheries. Can. Tech Rep. Fish. Aquat. Sci.,1257, 1–177.
Hoyle, J., 2015. Fish species composition, distribution, and abundance trends in the open-coastal waters of northeastern Lake Ontario, 1992–2012. Aquat. Ecosyst. Health Mgmt. 18(1), 89–100.
International Joint Commission United States and Canada (IJC), 1987. A Revised Great Lakes Water Quality Agreement of 1978: Agreement, with Annexes and Terms of Reference, Between the United States and Canada, Signed at Ottawa November 22, 1978 and Phosphorus Load Reduction Supplement signed October 16, 1983: as Amended by Protocol Signed November 18, 1987. Windsor, Canada.
Jobling, M., 1981. Temperature tolerance and final preferendum-rapid methods for the assessment of optimum growth temperatures. J. Fish Biol. 19, 439–455.
O'Connor, K. M., 2003. Remedial action plan for Hamilton Harbour : stage 2/prepared by HHRAP Stakeholder Forum; RAP Forum chairperson, Anne Redish; RAP coordinator, John D. Hall; RAP researcher/report writer, Kristin M. O'Connor. – Update 2002. HHRAP, Burlington, ON.
Ontario Ministry of Environment and Energy (OMOE), 1994. Water Management Policies, Guidelines, Provincial Water Quality Objectives of the Ministry of Environment and Energy. Reprinted February 1999. Queen's Printer, Toronto.
Rudstam, L. G., Magnuson, J. J., 1985. Predicting the vertical distribution of fish populations: an analysis of cisco, Coregonus artedii, and yellow perch, Perca flavescens. Can. J. Fish. Aquat. Sci. 42, 1178–1188.
Scott, W.B., and Crossman, E.J., 1973. Freshwater fishes of Canada. Bull. Fish. Res. Board Can. 184, 1–966.
Vascotto, K., 2006. An examination of the ecology of the Cisco (Coregonus artedii) in Ontario lakes. Ph. D. Thesis University of Toronto.
Whillans, T. H., 1979. Historic transformations of fish communities in three Great Lakes bays. J. Great Lakes Res. 5, 195–215.
Yerubandi, R.R., Marvin, C.M., Zhao, J., 2009. Application of a numerical model for circulation, temperature and pollutant distribution in Hamilton Harbour. J. Great Lakes Res. 35, 61–73.
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