CD 

 ■D 

 O 



o 



c 

 o 



2 



FIGURE 21. b HCH Concentrations 

 NOAA S&T Gulf of Mexico, 1991-92 



10 



20 



ng/g dry wt. 

 30 40 



50 



60 



70 



CBFM __ 



nbnb :: 



evrj :: 



tbpb :: 



tbcb :: 



APDB IE 



ckbp :: 



pbib :: 



SAWB IE 



msbb :: 



mbcp :: 



abob :: 



tblb :: 



BBSD IE 

 LPGO 

 BSBG 

 MRPL 



SLBB :: 



49 



