Toxic Stations 



Nematode (Chromadorina germanica) growth 

 B Ref. 1 



Amphipod (Ampelisca abdita) survival 

 Ref. 2 



Q Ref. 3 



Ref. 4 



A 



» 



Non-toxic stations; 

 O Re's. 1-4 



Figure 2. Sampling sites in which sediments were significantly toxic to: (1) nematode 

 (Chromadorina germanica) growth (from Tietjen and Lee, 1984); (2) amphipod 

 (Ampelisca abdita) survival in static tests (from Scott et al., 1990); (3) A. abdita in 

 flow-through tests (from Brosnan and O'Shea, 1993); and (4) A. abdita in static tests 

 (from U.S. EPA EMAP, 1990). 



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