were compared with data from I960 and 1961 

 weir counts, tag ratio estimates, and a peak 

 count nnethod. Differences annong the estinnates 

 ranged frona 6 to 22 percent. 



3. Seventy percent of the pink salmon in 

 Olsen Creek spawned in the intertidal zone in 

 1962. The run was bimodal; the early portion 

 spawned in both the fresh-water and intertidal 

 areas of the stream, whereas the late run 

 spawned only in the intertidal zone. This 

 distribution was identical to that of the parent 

 year, 1960. 



4. Only 34 percent of the total run spawned 

 in the intertidal area in 1963. The timing of 

 the run in 1963 was identical to that of the 

 parent year (1961), but unlike the even-year 

 run, early and late pink salmon both spawned 

 in the upstream and intertidal portions of the 

 stream. 



5. In 1962, pink salmon that spawned in the 

 two small intertidal creeks close to Olsen 

 Creek--Middle Slough and Little Creek--were 

 significantly smaller than intertidal spawners 

 in Olsen Creek. This relation also existed in 

 the parent year (I960). 



6. In 1963 late-run females in Little Creek 

 were significantly smaller than late-run 

 females in Olsen Creek. 



7. A graph of the relation between two 

 lengths--mideye to hypural plate and mideye 

 to fork of tail--is presented for ready com- 

 parison of the two measurements. 



8. Although the mean length of females 

 taken for fecundity samples was about the 

 same in both years, the mean feciondity was 

 1,829 eggs in 1962 and 1,929 in 1963. 



9. The relation between number of eggs 

 and length in 1962 was significant for early- run 

 fish but not for late-run fish. The combined 

 sample showed a highly significant (r = 0.335, 

 n = 90) relation between number of eggs and 

 length. 



10. The relation between number of eggs 

 and length for early and late runs connbined 

 in 1963 was highly significant (r = 0.634, 

 n = 52). 



11. The mean number of eggs per ovary was 

 954 for the left ovary and 978 for the right. 

 The right ovary held nnore eggs than the left 

 in 58 percent of 50 females examined, but the 

 difference was not statistically significant. 



12. About 10 percent of the eggs were re- 

 tained in the carcasses of females in both 

 1962 and 1963. 



ACKNOWLEDGMENTS 



The following biologists on the staff of the 

 Bureau of Commercial Fisheries Biological 

 Laboratory, Auke Bay, Alaska, contributed to 

 the planning and field work for this study: 

 Fredrik V. Thorsteinson, Jack E. Bailey, 

 Richard S. Williamson, and Theodore R. 

 Merrell, Jr. 



LITERATURE CITED 



DICE, LEE R., and HAROLD J. LERAAS. 



1936. A graphic method for comparing 

 several sets of measurements. Univ. 

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FISHERIES RESEARCH BOARD OF CANADA. 

 1962. Biological Station, Nanaimo, B.C. 

 Fish. Res. Bd. Can., Annu. Rep., 1961-62, 

 pp. 95-130. 



FOERSTER, R. E., and A. L. PRITCHARD. 



1961. Observations on the relation of egg 

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 gorbuscha). Trans. Roy. Soc. Can., 

 35 (sec. 5): 51-60. 



GANGMARK, HAROLD A., and LEONARD A. 

 FULTON. 

 1952. Status of Columbia River blueback 

 salmon runs, 1951. U.S. Fish Wildl. 

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 + 29 pp. 

 HANAVAN, MITCHELL G., and BERNARD 

 EINAR SKUD. 

 1954. Intertidal spawning of pink salmon. 

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 56: 167-186. 

 HARTMAN, WILBUR L., and CHARLES Y. 

 CONKLE. 

 1960. Fecundity of red salmon at Brooks 

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 HELLE, JOHN H. 



1966. Behavior of displaced adult pink 

 salmon. Trans. Amer. Fish. Soc. 95: 

 188-195. 

 HELLE, JOHN H., RICHARD S.WILLIAMSON, 

 and JACK E. BAILEY. 



1964. Intertidal ecology and life history of 

 pink salmon at Olsen Creek, Prince 

 William Sound, Alaska. U.S. Fish Wildl. 

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 26 pp. 

 HOBART, RICHARD A. 



1964. Large Petersen disk tags for study- 

 ing intrastream migrations of individual 

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 KIRKWOOD, JAMES B. 



1962. Inshore-marine and freshwater life 

 history phases of the pink salmon, 

 Oncorhynchus gorbuscha (Walbaum), 

 and the chum salmon, O.keta (Walbaum), 

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 Thesis, Univ. Louisville, Louisville, 

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McNeil, william j. 



1962. Mortality of pink and chum salmon 

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 Seattle, 270 pp. 



1964. Redd superimposition and egg ca- 

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