Georgetown Lake Management Survey 1981

igh densities. Daily limits were removed, the snagging season was extended, and a barrier was installed on the spawning tributary in response to the stunting. Summer growth rates for adult salmon tripled under the new regulations. Spawning runs were monitored but attempts to establish abundance indices were unsuccessful. A moderate decline in winter dissolved oxygen levels was measured in 1980-81. A severe oxygen depletion was measured in 1979-80 but with no apparent adverse affects to the fishery. Several disease outbreaks were investigated including one that killed 5,000 to 10,000 game fish