278 



LOCAL DISTRIBUTION OF PLANKTON IN RIVER AS SHOWN BY CHRONOLOGICAL 



CATCHES. 



No. of 

 group 



Esti- 

 mated 

 rate of 

 cur- 

 rent 



Esti- 

 mated 

 range 



in 

 miles 



Date 



1 



Temp. 

 (F.)at 

 bott'm 



Stage 



of 

 river 



Catch 

 per 

 m. 3 



De- 

 parture 

 from 

 mean in 

 per cent 



1 Av. 



depart. 



in per 



ct. of 



mean 



| T'l r'ge 



of limit 



in per 



ct. of 



mean 



i 



•75 



M j 



1895 

 July 29 

 Aug. 1 



75 

 77 



5 

 8 



5.38 

 4.20 



■47 

 •74 



+22.3 

 -22.3 



±22.3 



44.6 



2 



•5 



36 . 



' Aug. 5 

 I " 8 



79 

 78 





3-13 



2.63 



•95 

 •95 





 











3 



•5 



36 . 



Aug. 12 

 " 15 



82 

 83 



5 

 2 



2.40 

 2-35 



5-94 

 0.08 



— 1 .2 



+ 1.2 



± 1.2 



2.4 



4 



•5 



84 : 



Aug. 24 

 " 26 

 " 29 

 " 31 



78 



79 

 80 



77 



5 

 5 



2-35 

 2.78 

 2.58 

 2.65 



7.87 

 4-32 

 3.92 

 5.08 



+48.5 

 -18.5 

 -26. 

 4-i 



±24.3 



74-5 



5 



•75 



108 j 



Sept. 5 

 " 6 

 " 7 

 " 9 

 " 11 



72 

 72 

 72 

 72 

 77 



5 

 5 



5.70 

 6.85 

 5.88 

 5-38 

 4.25 



1.48 

 1. 16 

 .86 

 1.48 

 1.06 



+22.3 



+ 4-1 

 -28.9 



+22.3 

 — 12.4 



±17.6 



51.2 



6 



.6 



us ! 



Sept. 12 

 " 14 

 " 16 

 " 18 

 " 20 



78 

 75 

 74 

 75 

 78 



5 

 5 

 5 



3-9° 

 3-38 

 3.20 



3-58 

 3.20 



2.92 



3-49 

 1.91 

 1. 19 

 1.98 



+27 



+43 



-17 



-48.3 



-13-9 



±29.8 



9i-3 



7 



•25 



24 



Sept. 23 

 " 25 

 " 27 



76 

 72 

 72 



5 



5 



2.75 

 2.63 

 3-23 



1-37 

 1.05 

 1.14 



+ 15- 1 

 -11. 8 

 - 4.2 



±10.4 



26.9 



8 



2.5 



252 



1896 

 Tan. 6 

 " 8 

 " 10 

 " 13 



32 

 32 

 32 

 32 



2 

 1 

 3 

 4 



12.20 

 11.90 

 11.40 

 10.80 



•5i 

 1. 21 

 I.02 



•83 



-42.7 



+36 

 +14.6 

 - 6.7 



±25 



78.7 



9 



2 



720 1 



Jan. 15 

 " 20 

 " 25 

 " 3° 



32 

 32 

 33 

 34 



1 

 6 



3 



10.40 

 9.50 

 8.00 

 8.10 



1.84 

 1. 81 

 2.36 

 2.18 



— 10.2 

 -11. 7 



+i5-i 

 + b-3 



±10.8 



26.8 



10 



2 



720 1 



1 



Mar. 9 

 " 17 



" 24 



37 

 35 

 40 



1 



8 

 7 



10.20 

 9.70 

 8.80 



4.96 



5.08 

 5.80 



- 6.1 



- 3-8 



+ 9.8 



±6.6 



15.9 



ii 



1 



24 \ 



Apr. 24 

 " 25 



7i 

 67 



8 



5 



6.90 

 6.90 



17.07 

 16.91 



+ 0.5 

 - 0.5 



±0.5 



1. 



12 



1 



48 j 



Apr. 29 

 May 1 



70 

 68 



8 



7.10 

 7.10 



903 



5.06 



+28.1 

 -28.1 



±28.1 



56.2 



'3 



•75 



108 ! 



1 



Aug. 15 

 " 18 

 " 21 



78 

 78 

 78 





7.40 

 7.50 

 7.10 



2.32 

 2.72 

 1.84 



+ Li 



+ 18.8 

 — 196 



±12.8 



38.4 



14 



.6 



43-4 \ 



Aug. 26 

 " 29 



77 

 74 





6.50 

 6.00 



1.44 

 1.68 



- 7-7 

 + 7-7 



±7.7 



15.4 



Av. 



t 







1 |±I4-I 



37-4 



