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AdultEsc: Discrepancies exist between the sum of DayTot and the total escapement reported by Olson and McNeil (1967) for brood years 1932, 1939, 1940, and 1953. For these, we relied on the sum of DayTot to calculate TotalEsc and adjusted EstEsc accordingly. EstEsc underestimates the escapement for the 1977 brood because too many fish spawned intertidally to be counted.
AvgSize: Mean length of females from brood years 1966, 1973, 1975, 1976, 1977, and 1994 differ from averages obtained from the Fecundity table because the size of individuals taken to estimate fecundity differed from the population mean (t-test P < 0.05). Similarly, mean weights of females from brood years 1976, 1978, and 1979 differ between the population and those fish selected to measure fecundity (t test P < 0.05). AvgFecun is the mean of NumberEggs for a given year unless the mean length of the population differed from the sample taken to estimate AvgFecun. In brood years 1966, 1973, 1975, 1976, 1977, 1994, 1996, and 1997, the fecundities of the sampled females were regressed on their lengths to model the relationship between length and fecundity. AvgFecun was then calculated as the estimated fecundity of a female with a length equal to the population mean.
DailyAdult: The 1985 escapement had the sexes separate for the early part of the run, but after 24 August the sexes were combined. The 1986 and 1996 escapement had both sexed and unsexed fish for each day. We took the individually sexed fish to calculate the ratio of male to female fish for each day, then applied it to the unsexed fish. Where no dates are given, no fish were counted through the weir.
DailyFry: The 141 fry reported on 18 June 1967 represent the total for 1418 June.
The 7 fry reported on 15 June 1968 represent the total for 1215 June. Initial fry counts reported for broods 1942 and 1958 include all fry caught before 10 March.
Final fry counts for broods 1943, 1946, 1949, 1950, 1952, 1955, 1956, and 1960 include all fish observed after 17 June. Where no dates are given, no fry were observed.
EnvironmentalObservations: Precipitation recorded as trace of T in Olson and McNeil (1967) and Vallion et al. (1981) was entered numerically as 0.0127 cm (0.005 inch).
FryEsc: Discrepancies existed between the sum of the daily migrations versus the number migrating in Olson and McNeil (1967) for the following years: 1942, 1947, 1949, 1952, 1954, 1955, and 1956. For these years, we entered the sum of the daily migrations for number migrating (FryCreek) and adjusted the number released (FryReleased) to reflect the corrected number migrating. For the 1968 brood year, Vallion et al. (1981) recorded, An estimated 1,048,044 fry were produced in the creek but only 1,007,044 were released after counting. Approximately 40,500 fry were held and fed at the research station and released later."
Survival: Discrepancies exist between EstEsc in AdultEsc and EstEsc in Survival in Olson and McNeil (1967) for the 1940 and 1953 brood years. For these, we relied on the sum of DayTotal in DailyAdult to calculate TotalEsc and adjusted EstEsc accordingly in AdultEsc and Survival. For brood years 1971, 1972, 1974, 1975, 1976, and 1978 unmarked hatchery-produced fry, FryHatchery, were added to FryCreek for fry released, FryReleased. For the 1972-brood year, the total fry released was incorrect in Vallion et. al. (1981); we changed FryReleased to reflect the sum of FryCreek and FryHatchery. The value reported for the 1945 brood year FryCreek in the freshwater and saltwater survival table in Olson and McNeil (1967) was incorrect; it should have been 43,012, not 43,102.
For brood years 1941, 1946, 1948, 1951, 1953, 1954, 1955, 1962, 1963, and 1967 we changed the values reported by Olson and McNeil (1967) for FryCreek and FryReleased in Survival to reflect the correct values given in FryEsc. PED-Fry and FryAdult were also adjusted to reflect the corrected values. The sum of the daily fry migration for 1967 was not used for FryCreek, instead the estimated hydraulic sample value was used. Olson and McNeil (1967) used 2,000 as the value for average fecundity to estimate PED for brood years where fecundity was observed in less than 20 females. Estimates of FryAdult are not provided for brood years 1946, 1950, 1952, 1954, and 1960 because adults arriving at the weir were thought to be straying fish. Values for FemaleCreek, beginning with the 1960 brood year, are observed counts. Earlier values are estimated as the sum of Female in DailyAdult.