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- Lake Trout in Ontario: Management Strategies
1991. Olver, C. H., DesJardine, R. L., Goddard, C.I., Powell, M. J., Rietveld, H. J., Waring, P. D. Ontario Ministry of Natural Resources.
Summary: The goal of the Lake Trout Synthesis was to assemble existing information and generate new knowledge about lake trout communities and their responses to management actions and stresses. This report summarizes the results of the five working groups and provides recommendations for fisheries managers.
Document: Lake Trout in Ontario: Management Strategies (PDF, 5 mb)
- Analysis of Questionnaire on Stresses Acting on Lake Trout Lakes
1990. Lewis, C. A., Cunningham, G.L., Chen, T. Ontario Ministry of Natural Resources
Summary: This report examines Ontario lakes that contain populations of Lake Trout and the stresses that are present. Of the 48 stresses presented for consideration, managers expressed the greatest general concern regarding angling exploitation, erosion and siltation, acidic precipitation, and the introductions of smelt. In many cases little or no documentation exists on the actual impact of stresses on lake trout populations.
Document: Analysis of Questionniare on Stresses Acting on Lake Trout Lakes (PDF, 1.6 mb)
- Effects of Exploitation, Loss of Nursery Habitat, and Stocking on the Dynamics and Productivity of Lake Trout Populations in Ontario Lakes
1991. Evans, D. O., Casselman, J.M., Wilcox, C. C. Ontario Ministry of Natural Resources.
Summary: This report employed creel survey information, fisheries assessment data, and population modelling to evaluate the effects of angling exploitation, loss of deep-water nursery habitat, and stocking of hatchery reared non-native stocks of lake trout on the dynamics of lake trout populations in Ontario lakes.
Document: Effects of Exploitation, Loss of Nursery Habitat, and Stocking on the Dynamics and Productivity of Lake Trout Populations in Ontario Lakes (PDF, 4 mb)
- The Harvest Potential and Dynamics of Lake Trout Populations in Ontario
1990. Payne, N.R., Korver, R.M., MacLennan, D. S., Nepszy, S. J., Shuter, B. J., Stewart, T. J., Thomas, E. R. Ontario Ministry of Natural Resources.
Summary: This report examines a method of estimating optimal fishing mortality and size at recruitment from growth parameters. Tables are developed which facilitate its application to lake trout and the relevance of such an application is tested.
Document: The Harvest Potential and Dynamics of Lake Trout Populations in Ontario (PDF, 1.9 mb)
- Inland Lake Trout Management in Southeastern Ontario
1993. Ontario Ministry of the Environment, Southeastern Region and Ontario Ministry of Natural Resources, Southern Region.
Summary: This report summarizes historical data and reflects more recent work on water quality and fisheries management. It recommends action with respect to land use and development which will contribute to long-term water quality and fisheries management objectives for the lake trout waters of southeastern Ontario.
Document: Inland Lake Trout Management in Southeastern Ontario (PDF, 8.5 mb)
- The Distribution and Characteristics of Ontario Lake Trout Lakes
1976. Martin, N.V. and Olver, C.H. Ontario Ministry of Natural Resources.
Summary: This report summarizes the known occurrence of lake trout lakes in Ontario. The characteristics of Ontario lake trout lakes are defined and compared with those of non-trout waters.
Document: The Distribution and Characteristics of Ontario Lake Trout Lakes (PDF, 4 mb)
- Antropogenic Stressors and Diagnosis of their Effects on Lake Trout Populations in Ontario Lakes
1991. Evans, D. O., J. Brisbane, J. M. Casselman, K. E. Coleman, C. A. Lewis, P. G. Sly, D. L. Wales and C. C. Willox. Ontario Ministry of Natural Resources.
Summary: This report documents the status of lake trout stocks in Ontario and reviews the effects and extent of the influences of : exploitation, introduced species and stocks, habitat and watershed manipulations, domestic and industrial effluents, and long range transport of atmospheric pollutants on lake trout populations.. An approach for field assessment, diagnosis, and attribution of stress effects for these populations is also proposed.
Document: Antropogenic Stressors and Diagnosis of their Effects on Lake Trout Populations in Ontario Lakes (PDF, 1.3 MB, 126 p.)
- Environmental and Genetic Factors Affecting the Physiology and Ecology of Lake Trout
1990. MacLean, N. G., J. M. Gunn, F. J. Hicks, P. E. Ihssen, M. Malhiot, T. Mosindy and W. Wilson. Ontario Ministry of Natural Resources.
Summary: This report examines the genetics, feeding behaviour and diet, habitat and spawning behaviour of lake trout and discusses the role of these factors in the management of lake trout.
Document: Environmental and Genetic Factors Affecting the Physiology and Ecology of Lake Trout (PDF, 685 KB, 87 p.)
- Fish Community and Environment Effects on Lake Trout
1990. Carl, L., M.-F. Bernier, L. Deacon, P. Hulsman, D. Loftus, D. Maraldo, T. Marshall and P. Ryan. Ontario Ministry of Natural Resources.
Summary: This report examines aspects of the relationship of the aquatic community to lake trout biology and yield. We review the fish community type concept, its relevance to managers and alternative schemes for grouping lakes for management purposes.
Document: Fish Community and Environment Effects on Lake Trout (PDF, 550 KB, 56 p.)
- Sampling Ontario Lake Trout Stocks: Issues and Standards
1991. Lester, N. P., M. M. Petzold, W. I. Dunlop, B. P. Monroe, S. D. Orsatti, T. Schaner, and D. R. Wood. Ontario Ministry of Natural Resources.
Summary: A cost-effective approach for evaluating the status of lake trout in Ontario lakes is developed. This report describes two types of lake trout assessment programs: one for Fisheries Assessment Unit lakes and the other for district lakes.
Document: Sampling Ontario Lake Trout Stocks: Issues and Standards (PDF, 550 KB, 56 p.)
- Inland Ontario Lakes Designated for Lake Trout Management
2006. Ontario Ministry of Natural Resources.
Summary: This report lists the 2283 inland Ontario lakes (exclusive of the Great Lakes) that are currently designated for lake trout management. The list includes 2098 lakes that are managed for naturally reproducing populations (‘Natural’ lakes) and 185 lakes that are managed for put-grow-take stocking (‘P-G-T’ lakes). ‘Natural’ lakes include those lakes that may have lost populations but have been identified for rehabilitation. ‘P-G-T’ lakes are managed to provide recreational fishing opportunities and/or to direct angling effort away from more sensitive ‘Natural’ lakes.
Document: Inland Ontario Lakes Designated for Lake Trout Management (PDF, 608 KB, 58 p.)
- Effects of Hypoxia on Scope-for-Activity of Lake Trout: Defining a New Dissolved Oxygen Criterion for Protection of Lake Trout Habitat
2006. Evans, D. O. Ontario Ministry of Natural Resources.
Summary: This report defines a dissolved oxygen criterion for the protection and sustainability of lake trout populations in Ontario lakes and identifies an appropriate and practical way to implement the criterion. Technical Report 2005-01, Revised April 2006.
Document: Effects of Hypoxia on Scope-for-Activity of Lake Trout: Defining a New Dissolved Oxygen Criterion for Protection of Lake Trout Habitat (PDF, 191 KB, 21 p.)
Summary Document for this Publication (PDF, 40 KB, 3 p.)
