81
83
85
87
89
91
93
95
97
99
0
20
40
60
80
100
Lake Trout
Hybrids
Plantings of lake trout and hybrid lake trout in the
Big Sound, 1981 to 1999.
Year
Text Box: Thousands of Yearlings
Thousands of Yearlings
•Wild eggs were first collected in 1979 from the few remaining fish
• Wild progeny and backcross were both stocked starting in 1981, backcross was terminated in 1991 due to concerns with genetics and poor survival
• The planted trout attracted anglers by 1985
•  An outbreak of a disease in the Great Lakes (epizootic epitheliotrophic disease virus-EEDv) prevented wild egg collections and stocking of lake trout did not occur in 1989 to 1991.
• Stocking in Parry Sound terminated in 1997due to sufficient natural reproduction and evidence that natural reproduction should be enhanced with a stocking cessation
• MNR will continue to stock in Georgian Bay and Five Mile Bay with lake trout derived from the Parry Sound stock.