1954/04/01 by Warren J. Wisby, Arthur D. Hasler
Environmental Science · #Fish Ecology and Management Studies
paper · doi:10.1139/f54-031
crossref issued 1954/04/01 · crossref published 1954/04/01 · crossref published-print 1954/04/01 · openalex publication_date 1954/04/01 · crossref created 2011/04/24 · crossref deposited 2020/01/06 · openalex created_date 2025/10/10 · crossref indexed 2026/07/25 · openalex updated_date 2026/07/25
Silver salmon were captured in traps in Issaquah Creek and its East Fork. The olfactory pits of approximately one-half of the fish were occluded before all of them were displaced to the Issaquah about one mile below the junction of the two streams. The control salmon, unlike those with occluded olfactory pits, showed an excellent ability to repeat their original choice at the stream juncture. This is interpreted to mean that the operated fish were not able to differentiate between the two streams but were distributing themselves in a random fashion. The results, therefore, are in accord with those which would be expected if the fish were relying on their sense of smell in making this choice.