NOAA-NMFS-NWFSC TM-32: Table 22

Table 22. Summary of chum salmon carcasses examined for hatchery marks in selected Hood Canal streams in 1995 and 1996 (WDFW 1996, USFWS 1996).


Stream	Estimated escapement	Fish examined	Number of marked fish observed	Maximum number of marked fish possible^a	Hypothetical maximum number of hatchery fish possible^b

1995
Quilcene Bay^c		499	41
Big Quilcene R.		808	26
L. Quilcene R.		8	0
Dosewallips		180	0

1996
Quilcene Bay^d		822	85
Big Quilcene R.		642	55
L. Quilcene R.	274	125	0	5	45
Dosewallips R.	7,959	1,330	0	17	153
Duckabush R.	2,807	650	0	12	108
Hamma Hamma R.	820	200	0	11	99
Union R.	552	150	0	10	90

Total^b	12,412	2,455	0	14	126

^aThe maximum number of marked fish that could have been in the population and still have at least a 5% chance of observing no marked fish.
^bThe value in the previous column expanded to include unmarked hatchery fish based on USFWS estimate of effective tagging rate. As discussed in text, this undoubtedly overestimates the number of hatchery fish, but by an unknown amount.
^cQuilcene Bay number includes fish that returned to the hatchery.
^dTotal does not include fish from the fishery or from Quilcene Bay.