K-39 
Hah lat B 
• 
Summary (cont.) 
Example of calculations for a hypothetical segment with two habitats: 
Iteration 
n 
Habitat A 
Ihreshold P <thr©shold 
n 
Habitat B 
threshold P threshold 
P < threshold for A ♦ B’ 
1 
to 
2 0 0/4C 
40 
2 2 0.30 
32.0 
2 
10 
2 0 0.40 
40 
2.6 0.40 
40.0 
3 
10 
2 0 0.4C 
40 
1 7 0.28 
304 
n 
10 
2 0 0.4C 
40 
3 0 0.48 
45.4 
P total < threshold = 
Average * SE 
•(n 3 , ♦ nP yjr, ♦ n t ). expressed as percent 
appendix k 
2006 303(d) Assessment Methods for Chesapeake Bay Benthos 
