Table 2. Definition of percent species composition AOV model components. 



Component 



Definition 



*ijklm 

 X 



P 



Y 



S 



T 



TP 



TY 



TS 



R 



RP 



RY 



RS 



TR 



TRP 



TRY 



TRS 



arcsine(p. .j, /n- .. , )* for p individuals of species m in n total 

 mean 



effect due to period i for the period before or after September 1979 

 effect due to year j (October through September) within period i 

 effect due to season (month or quarter) k within year j, period i 

 I effect due to being assigned to a taxon (species) m 

 interaction effect of taxon by period 

 I interaction effect of taxon by year (within period) 

 I interaction effect of taxon by season (within year and period) 

 effect due to region (station) 1 

 interaction effect of region by period 

 interaction effect of region by year (within period) 

 interaction effect of region by season (within year and period) 

 interaction effect of taxon by region 

 interaction effect of taxon by region by period 

 interaction effect of taxon by region by year (within period) 

 interaction- effect of taxon by region by season (within year and period) 



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