Table 2. Regression analyses of the last year's residual from long-term (> 10 yr) trends in adult, subadult/jack, and juvenile salmonid abundance and exact and scale matches of composite habitat matrix index scores (β = regression coefficient, N = number of trends, r2 = coefficient of determination, and P = regression significance level).

 
Exact matches
Life stage  
Species
 
  β
 
N
 
r2
 
P
Adult  
All
 
0.9
 
27
 
0.07
 
0.2
Subadult/jack  
All
 
0.09
 
14
 
0.0004
 
0.9
Juvenile  
All
 
0.12
 
6
 
0.002
 
0.9
 
Scale matches
Life stage  
Species
 
β
 
N
 
r2
 
P
Adult  
Coho
 
-0.5
 
38
 
0.02
 
0.4
   
Chinook
 
-2.2
 
21
 
0.32
 
0.001
Subadult/jack  
Coho
 
-0.7
 
35
 
0.05
 
0.3
   
Chinook
 
0.6
 
24
 
0.02
 
0.6
Juvenile  
All
 
-1.5
 
10
 
0.19
 
0.09