|
State of Environment Reporting
What
is the Relationship Between Climate and Migration Success of Sockeye
Salmon?
|
Average
Fraser River Temperature
|
|
|
Year
|
Temperature
(ºC)
|
|
1953
|
15.9
|
|
1954
|
15.1
|
|
1955
|
15.2
|
|
1956
|
15.7
|
|
1957
|
17.9
|
|
1958
|
14.9
|
|
1959
|
15.3
|
|
1960
|
17.6
|
|
1961
|
15.3
|
|
1962
|
16.8
|
|
1963
|
14.9
|
|
1964
|
16.4
|
|
1965
|
15.4
|
|
1966
|
16.4
|
|
1967
|
15.2
|
|
1968
|
15.9
|
|
1969
|
16.5
|
|
1970
|
16.5
|
|
1971
|
16.2
|
|
1972
|
16.1
|
|
1973
|
14.9
|
|
1974
|
15.8
|
|
1975
|
15
|
|
1976
|
16.2
|
|
1977
|
17.1
|
|
1978
|
17
|
|
1979
|
16.4
|
|
1980
|
17.3
|
|
1981
|
15.9
|
|
1982
|
16.5
|
|
1983
|
15.8
|
|
1984
|
16.3
|
|
1985
|
15.6
|
|
1986
|
16.9
|
|
1987
|
15.7
|
|
1988
|
16.4
|
|
1989
|
15.8
|
|
1990
|
15.3
|
|
1991
|
16.1
|
|
1992
|
16.3
|
|
1993
|
17.9
|
|
1994
|
16.9
|
|
1995
|
16
|
|
1996
|
16.5
|
|
1997
|
18.9
|
SOURCE:
Historical temperature data from the Pacific Salmon Commission,
1941-1998. Historical weather data from Meteorological Service of
Canada, Environment Canada 1953-1998. Analysis by John Morrison,
Institute of Ocean Sciences, 2001 for the Ministry of Water, Land
and Air Protection.
|
