182 



Fishery Bulletin 98(1) 



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0.5. 



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-0.5. 



-10. 



Spr 



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CCA axis 1 



~T — 

 05 



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 CCA axis 3 



Figure 9 



Ordination of the 25 environmental variables with (A) the first two and 

 (B) the third and fourth canonical axes. Seasonal variables (Spring, 

 Summer, Fall, and Winter) are plotted as points, all other variables as 

 vectors. Environmental variable codes are explicated in Table 2. Species- 

 environment biplots are given in (C) for the first two axes and in (Dl for 

 the third and fourth axes of the partial CCA. Species codes are defined in 

 Table 3. The relative rank of a species with respect to an environmental 

 variable can be determined by extending a line perpendicular from the 

 environmental vector to the species. 



