LIST OF FIGURES (continued) 



Page 



Figure 3-19. Evidence of advanced benthic recolonization and limited winnowing in 1998 ....70 



Figure 3-20. Presence of gray clay and sulfidic sediments (at depth) in 1998 REMOTS® 



replicates 71 



Figure 3-21. Median OSI values over the Seawolf Mound and changes relative to 1997 



survey 72 



Figure 3-22. Rarefaction curves showing the relative effect of species density and 



diversity 75 



Figure 3-23. Metal concentrations measured in predredge surveys and 1997 postcap 



cores 83 



Figure 3-24. Metal concentrations normalized to grain size from predredge surveys 



and 1997 postcap cores 84 



Figure 3-25. Average concentrations of five individual PAH compounds from the dredge 

 site (UDM, CDM) and the Seawolf cores. Note the different scale of the 

 1992 UDM averages 88 



Figure 3-26. Phenanthrene and pyrene concentrations measured in the long cores shown 



with respect to the average predredge UDM samples 89 



Figure 3-27. Trace metal concentrations in sediment from the Seawolf Mound designated 

 dredging areas (classified as UDM or CDM), the Seawolf Mound 1998 and 



1997 cores, and the WESTREF reference area (1998) 100 



Figure 3-28. Normalized trace metal concentrations in sediment from the Seawolf Mound 

 designated dredging areas (classified as UDM or CDM), the Seawolf Mound 



1998 and 1997 cores, and the WESTREF reference area (1998) 101 



Figure 4-1 . SAB curves along a gradient of organic enrichments. S = number of 



species; A = abundance; B - biomass 115 



Figure 4-2. Distribution of species abundance and number of individuals over the 



Seawolf Mound 116 



Figure 4-3. Diversity indices (Shannon- Wiener H' and Evenness J') distributed over the 



Seawolf Mound 117 



