TABLE D-~-2,--Long-term trend in May and July pond indexes by strata and comparisons 
to average and previous year, southern Saskatchewan, 1956-63 
STRATUM 





me and a PO A SP SO yD 
a ed es 
SS ee ne em a fo 
eee 
a ee ee yh oe 
ee ee ee 
a pe py re ed ym A he 
ON 
Average 1956 to 1962---- 
Percent change, 1963 





6 
@® 
OD . 
WWE O OF 
2 
8 
i, 
59.1 23.1 
+221.3 4212.8 
+430 +80.1 
TABLE D-3.--Number of water areas per square mile, Montana, 1959-62 
“ree, Sheridan Great Falls- 
Reservoirs: 
Average 1958 to 1962---- 
Percent change, 1963 
from 1962------------- 
Average----------------- 

Sa a ah ne i ai 1.22 
1960 ~--2- nnn nner nnn nnn ne enn naan 1-79 
1961-922 -- nnn nnn nnn nnn nanan nena .83 
Le alata a na ar ree ania cece aes 
19OG neem n anew namn nnn naen anne nana -73 
Potholes: 
Dd ete SR Sa eR ea etarin et 1.44 
1960------------ A eenennneneencnnne 1.14 
1961) --- 22 won nan enn ene == 52 
1962-4 --2- = we nw nn nnn nnn enn esa 30 
1963 s--- nnn nn nn nen nn enn nn enn ene 15 
Other water areas: 
195Qnnan wana en nnn n nanan nennen-=a-- 1.04 
1960---2--- + nnn nnn nn enn nn nan n---- 1.05 
1961 ------~- 2-22-20 - 2 e=------ = -96 
1962-22 mn nw nen nnn nnn nnn nena nn 59 
1963-------+-~+-------~~-------~-- 66 
Total: 
15 naan enn tenn en ewn nnn an nnnnn 3.69 
1960 n-ne nen enn nen nnnn sane 3.98 
196 ----- - 240 een enn nn n-ne = =~ 2.31 
1962.-- naan enn ann nano ene n-- === 1.79 
1963 --- nanan nnn monn nn nn nnn nn n= 15 
Percent change, 1963 from 1962-- -13 
