Historical Escapements -- Mitchell River

Introduction

Annual escapement, total return (all ages combined) from that escapement, and return per spawner for the major stocks within the Summer Complex of Fraser River sockeye for individual years within each cycle from 1960 to 1989. Please note that return to spawner ratio is the total return to escapements from four years earlier (previous cycle).

Note, published in "Fraser River Sockeye Salmon Report, 1995. Prepared by the Dept. of Fisheries and Oceans, Canada. Information based upon Pacific Salmon Commission production data.

  (data) Mitchell River Cyclic Dominance

MITCHELL RIVER (Summer Complex)
1992 CYCLE YEAR 1993 CYCLE YEAR 1994 CYCLE YEAR 1995 CYCLE YEAR
Number Total Return to Number Total Return to Number Total Return to Number Total Return to
Brood of Brood Spawner Brood of Brood Spawner Brood of Brood Spawner Brood of Brood Spawner
Year Spawners Return Ratio Year Spawners Return Ratio Year Spawners Return Ratio Year Spawners Return Ratio
1960 1961 2,677 21,598 8.07 1962 65 16 0.25 1963
1960 1961 6,601 17,884 2.71 1962 5 587 117.4 1963
1964 1965 5,335 52,955 9.93 1966 142 120 0.85 1967
1968 1969 8,939 144,443 16.16 1970 0 0 1971
1972 1973 24,673 177,596 7.2 1974 0 0 1975
1976 1977 42,396 328,409 7.75 1978 1,237 10,465 8.46 1979
1980 1981 66,106 1,475,563 22.32 1982 3,829 103,732 27.09 1983
1984 1985 204,579 1,581,320 7.73 1986 30,827 225,892 7.33 1987
1988
Average Average 45,163 474,969 10.23 Average 6,018 56,802 26.9 Average

Last Update: 6/20/96


This information is available for download in Excel format.

Fraser River Aboriginal Fisheries Secretariat
Technical Liaison -- Mike Galesloot
Webmaster -- Trevor Murphy
Copyright 1996.

Last modified: July 12, 1996 04:58 PM