U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications
NOAA-NMFS-NWFSC TM-32: Chum Status Review


Table 8. Summary of juvenile marking and adult recovery studies used to estimate stray rate in chum salmon (Lister et al. 1981).

Date of study Brood years marked Type
of mark		 Brood source Rearing site Life
stage
released		 Release site Number of fish marked Estimate
of
straying		 Reference
1951-55 1? fin-clip unknown hatchery unknown Tokoro R., Japan 2 million total 2% Sakano 1960
1951-55 1? fin-clip       Chitose R., Japan   10%  
1974-76 2 fin-clip Disappearance Cr., Prince of Wales I., AK hatchery fed fry Disappearance Cr. 109,303 0%a Freitag and Ward 1981 (reported in Lister et al. 1981)
1975-77 2 fin-clip Disappearance Cr., Prince of Wales I., AK hatchery fed fry Beaver Falls Hatchery, Revillagigedo I., AK 101,463 8.80% Freitag and Ward 1981 (reported in Lister, et al. 1981)
1976-79 1 fin-clip Inches-Barnes Cr., Fraser R., B.C. on site unfed fry Inches-Barnes Cr. 275,305 0.072%b Foye 1981 (reported in Lister et al. 1981)
1973-78 2 fin-clip Blaney Cr., Fraser R., B.C. on site unfed fry Blaney Cr. 252,900 in 1973 45.7% Harding 1981 (reported in Lister et al. 1981)
              190,033 in 1974 9.3%  
1981-88 2 coded micro-wire tags 2 stocks from Juneau, AK hatchery age-0 fry Juneau, AK 20,000 per yr. 0% Smoker and Thrower 1995
aOnly 17 fish were recovered at release site.
bOnly age-3 fish recoveries examined; normally age-4 returns comprise 60% of escapement.

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