Tag effects on prespawn mortality of Chinook Salmon: A field experiment using PIT tags, radio transmitters, and untagged controls

Author(s):  
George P. Naughton ◽  
Matthew L. Keefer ◽  
Tami S. Clabough ◽  
Matthew J. Knoff ◽  
Timothy J. Blubaugh ◽  
...  
2015 ◽  
Vol 35 (4) ◽  
pp. 845-852 ◽  
Author(s):  
Kenneth F. Tiffan ◽  
Russell W. Perry ◽  
William P. Connor ◽  
Frank L. Mullins ◽  
Craig D. Rabe ◽  
...  

1985 ◽  
Vol 42 (4) ◽  
pp. 693-700 ◽  
Author(s):  
Carl V. Burger ◽  
Richard L. Wilmot ◽  
David B. Wangaard

From 1979 to 1982,188 chinook salmon (Oncorhynchus tshawytscha) were tagged with radio transmitters to locate spawning areas in the glacial Kenai River, southcentral Alaska. Results confirmed that an early run entered the river in May and June and spawned in tributaries, and a late run entered the river from late June through August and spawned in the main stem. Spawning peaked during August in tributaries influenced by lakes, but during July in other tributaries. Lakes may have increased fall and winter temperatures of downstream waters, enabling successful reproduction for later spawning fish within these tributaries. This hypothesis assumes that hatching and emergence can be completed in a shorter time in lake-influenced waters. The time of upstream migration and spawning (mid- to late August) of the late run is unique among chinook stocks in Cook Inlet. This behavior may have developed only because two large lakes (Kenai and Skilak) directly influence the main-stem Kenai River. If run timing is genetically controlled, and if the various components of the two runs are isolated stocks that have adapted to predictable stream temperatures, there are implications for stock transplantation programs and for any activities of man that alter stream temperatures.


Author(s):  
T. L. Martinelli-Liedtke ◽  
R. S. Shively ◽  
G. S. Holmberg ◽  
M. B. Sheer ◽  
R. M. Schrock

1979 ◽  
Vol 36 (9) ◽  
pp. 1060-1064 ◽  
Author(s):  
Robert H. Gray ◽  
James M. Haynes

Upstream movements of radio-tagged and control adult chinook salmon (Oncorhynchus tshawytscha) were monitored during spring and fall 1976 and spring 1977 in the lower Snake River, southeastern Washington. Travel time from point of fish release and percent return to upstream trapping facilities were compared for experimental and control fish. Experimental fish carried anchor tags, and either external or internal radio transmitters. Control fish carried anchor tags only. Chinook salmon that lost external transmitters moved upriver more slowly than control fish although percent returns to upriver trapping facilities were similar. Travel times and percent returns of chinook salmon that retained external transmitters did not differ significantly from those of control fish. Although some salmon tagged with internal transmitters moved upriver, all failed to cross Little Goose Dam 6.5 km from the release site. Most internally tagged salmon eventually swam downstream. Key words: chinook salmon, biotelemetry, behavior, migration, radiotelemetry, bioengineering


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