Appendix Table ^.--Oiiidine effactivsneaa of three method.? of enerp:izin<^ 

 an electrode arr»iy as indicated bv the ratio of the number of fish in 

 the narrow channel to the total number recovered dovmatream, expressed 

 as a percentage. Fish were roljaaad in lots of 100 each. 



Positive Positive Alternate 

 UpBtream Dovnstreani Polarity Control 



1 81+ 28 33.3 80 Uk 55.0 85 28 32.9 78 9 11.5 



2 86 U3 50.0 89 k8 53.9 81+ 30 35.7 86 7 8.1 



3 87 36 U3.7 80 55 68.7 91 35 ^2.9 76 8 10.5 

 k 83 39 1+7. 9^ 'i7 50.0 63 11 17.5 ^+9 9 18. i+ 



5 79 ^+7 59.5 89 3^ 38.2 82 16 19.5 



6 88 38 1+3.2 77 39 50.6 88 i+l 1+6.6 77 5 6.5 



7 85 38 1+1.7 80 36 1+5.0 89 3*^ 38.2 82 7 8.5 



8 80 39 W.7 05 3C-' ^2.3 85 3I1 1+0.0 70 17 2I+.3 



9 7^ 31 ^1.9 77 32 L1.6 77 31 itO.3 77 1^+ 18.2 



10 78 33 ^2-3 76 31 '^0-8 86 35 ^^0.7 79 17 21.5 



11 79 35 ^^.3 72 39 5'+.2 79 31 39-2 58 13 22.1+ 



12 76 33 '^3.'+ 71 32 1+5.1 79 3^ ^3.0 76 16 21.0 



All day 979 kk2 k^.l 88I k39 49.8 995 382 38-^ 890 138 15. 5 



13 



INT. DUP.,D. 0.59- f3399 



