CONTENTS 



Page 



Introduction 1 



Historical review 3 



Experimental and analytic methods 3 



Tags and tagging 3 



Preliminary processing of data 4 



Release and recovery information 4 



Migration routes as determined from tag recoveries 8 



Migration between northern and southern southeastern Alaska 8 



Migration through Peril Strait 8 



Distribution of trap recoveries from experiments in Icy Strait and Chatham Strait 9 



Icy Strait 9 



Upper Chatham Strait 12 



Middle Chatham Strait 17 



Lower Chatham Strait 19 



Summary and discussion of general migration patterns as determined from tag recaptures ... 21 



Relative abundance and migration as determined from trap catch data 24 



Rate of travel determined from tagging data 28 



Mortality rates 29 



Recommendations for the design of future tagging experiments 36 



Summary 38 



Acknowledgments 39 



Literature cited 39 



Figures 



1. Southeastern Alaska, area of pink salmon tagging experiments in 1938-42 and 1945 2 



2. Northern part of southeastern Alaska showing major statistical areas and subareas used for 



computer analysis of pink salmon tag recapture data 5 



3. Locations and code numbers of principal trap sites, 1938-42 and 1945 7 



4. Tag recoveries per trap by 20-mile intervals measured from points of release in Icy Strait, 



1941 . 13 



5. Tag recoveries per trap by 20-mile intervals measured from points of release in Icy Strait, 



1942 14 



6. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in upper Chatham Strait, 1940 15 



7. Tag recoveries per trap by 20-mile intervals measured from point of release in upper Chatham 



Strait, 1941 16 



8. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 

 in upper Chatham Strait, 1942 17 



9. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in middle Chatham Strait, 1940. 



10. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in middle Chatham Strait, 1941. 



11. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in middle Chatham Strait, 1942. 



12. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in lower Chatham Strait, 1938. 



13. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in lower Chatham Strait, 1939. 



25 



14. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in lower Chatham Strait, 1941 



15. Tag recoveries per trap per time period by 20-mile intervals measured from point of release 



in lower Chatham Strait, 1942 25 



18 



20 



21 



22 



24 



HI 



