LIST OF TABLES 

 Table Page 



1. Location, depth, bottom temperature and salinity 



of stations sampled in Casco Bay, April 1980 11 



2. Sediment characteristics, organic carbon and 



Kjeldahl nitrogen values for Casco Bay stations 17 



3. ANOVA table of multiple regression analysis of 

 organic carbon on mean grain size, bottom depth 



and their interaction 31 



4. Concentrations of metals (ppm dry weight) in surface 

 sediments of Casco Bay, Maine 32 



5. Correlation matrix for Casco Bay trace metal samples.... 47 



6. Comparison of trace metal levels at several 



New England locations 49 



7. Phylogenetic listing of taxa encountered during benthic 



sampling of Casco Bay, April 1980 54 



2 2 



8. Species per station, density/m , biomass (g/m wet 



weight), diversity (H 1 ), evenness (J') and species 



richness at each of the 56 Casco Bay stations 



sampled 60 



9. Mean density of invertebrates in unconsolidated 

 sediments of temperate and boreal inshore waters 

 (modified from Maurer et al . 1978) 68 



10. Membership of species-groups 97 



11. Mean, ranges and standard deviations of various 



physical and biological parameters by site-group 105 



12. Patterns of significant differences between site-groups 

 based on Duncan's multiple range test 106 



XI 



