104 



FISHERY BULLETIN OF FISH AND WILDLIFE SERVICE 



s5/>r/fT^ CA/ftooA 



/Yason Cf. 



4.9 ayt^a, 90 /-*Ma 



0/?c 



^h /?. 



lonapeco^t 



2.9 aye/sj 9^ f^Ms 



Sufftftrar C/f/'/rooA 



7.8 ayt/s, 4/ ree/efs 



4:7 aye/j, 9 /••</</« 

 fa// Ch/nook 



tc/enatcJtee A. 

 S. 9 Oy</s , 8S /'et/efa 



Ko/ama /?. Creen /?. Toufle R. 



S.7 aytA, /■^J r-eeA/j S.^ OyA , 2 7 /-ce^s 6.S aytA^ BS ^at/t/s 



Figure 5o. — Average size and gravel composition of Columbia River salmon redds. 



