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. Author manuscript; available in PMC: 2010 Jan 22.
Published in final edited form as: J Appl Microbiol. 2009 Jun 5;107(5):1740–1750. doi: 10.1111/j.1365-2672.2009.04440.x

Table 3.

Log-mean and standard deviation (in parentheses) of enterococci enumerated using membrane filtration (ENT–MF), enterococci enumerated with defined substrate (ENT–DS), and Escherichia coli in the 22 treatments (T) and all treatments in aggregate (all in bottom row). Results are provided for sand of the three sands. Sand 1 is from Doheny beach, sand 2 is from Hobie Cat beach and sand 3 is from a beach in Michigan City

Sand 1
 Sand 2
 Sand 3
ENT–MF
 ENT–DS
 EC
 ENT–MF
 ENT–DS
 EC
 ENT–MF
 ENT–DS
 EC
T log CFU g−1 log MPN g−1 log MPN g−1 log CFU g−1 log MPN g−1 log MPN g−1 log CFU g−1 log MPN g−1 log MPN g−1
1 3·5 (0·1) 3·5 (0·1) 1·7 (0·1) 2·0 (0·1) 1·5 (0·1) 1·7 (0·1) 1·7 (0·2) 1·1 (0·2) 1·9 (0·2)
2 3·4 (0·0) 3·4 (0·1) 1·6 (0·0) 2·1 (0·2) 1·9 (0·4) 1·8 (0·1) 1·6 (0·1) 0·9 (0·3) 1·2 (0·7)
3 3·5 (0·1) 3·5 (0·0) 1·3 (0·2) 2·1 (0·1) 1·6 (0·4) 1·8 (0·1) 1·6 (0·1) 0·9 (0·6) 1·4 (0·9)
4 3·4 (0·0) 3·5 (0·0) 1·8 (0·1) 1·8 (0·1) 1·3 (0·1) 1·8 (0·1) 1·5 (0·1) 1·0 (0·5) 1 ·6 (0·4)
5 3·5 (0·0) 3·4 (0·1) 1·7 (0·2) 2·0 (0·1) 1·7 (0·2) 1·7 (0·0) 1·6 (0·0) 1·1 (0·5) 1·9 (0·2)
6 3·5 (0·0) 3·4 (0·1) 1·8 (0·1) 2·1 (0·0) 1·4 (0·1) 1·9 (0·1) 1·3 (0·2) 1·2 (0·3) 1·7 (0·5)
7 3·5 (0·1) 3·4 (0·0) 1·7 (0·1) 2·0 (0·1) 1·7 (0·4) 1·7 (0·2) 2·1 (0·8) 1·6 (1·0) 2·4 (0·8)
8 3·6 (0·1) 3·4 (0·0) 1·7 (0·2) 2·0 (0·1) 1·6 (0·1) 1·8 (0·1) 1·3 (0·2) 0·7 (0·3) 1·7 (0·2)
9 3·4 (0·1) 3·4 (0·1) 1·8 (0·2) 1·9 (0·1) 1·5 (0·2) 1·7 (0·1) 1·4 (0·6) 1·0 (0·4) 1·7 (0·6)
10 3·4 (0·2) 3·5 (0·1) 1·9 (0·0) 1·8 (0·3) 1·6 (0·1) 1·8 (0·0) 1·6 (0·0) 1·5 (0·0) 1·9 (0·0)
11 3·5 (0·2) 3·5 (0·1) 1·1 (0·0) 2·1 (0·0) 1·7 (0·2) 1·6 (0·1) 1·6 (0·1) 1·1 (0·1) 1·8 (0·0)
12 3·4 (0·0) 3·4 (0·1) 2·0 (0·1) 2·1 (0·1) 2·0 (0·5) 1·7 (0·1) 1·6 (0·1) 1·3 (0·1) 1·8 (0·1)
13 3·5 (0·2) 3·5 (0·1) 1·8 (0·1) 2·1 (0·1) 1·6 (0·1) 1·7 (0·1) 1·6 (0·1) 1·3 (0·1) 1·9 (0·1)
14 3·5 (0·0) 3·4 (0·0) 1·8 (0·1) 1·9 (0·3) 1·6 (0·3) 1·7 (0·1) 1·6 (0·0) 1·3 (0·2) 1·8 (0·0)
15 3·5 (0·1) 3·5 (0·1) 1·8 (0·3) 2·1 (0·1) 1·7 (0·4) 1·7 (0·0) 1·5 (0·1) 1·3 (0·1) 1·9 (0·1)
16 3·6 (0·1) 3·5 (0·1) 1·8 (0·3) 2·1 (0·1) 1·9 (0·2) 1·7 (0·1) 1·6 (0·1) 1·4 (0·1) 1·9 (0·1)
17 3·5 (0·1) 3·5 (0·1) 1·6 (0·2) 2·0 (0·1) 1·4 (0·0) 1·8 (0·1) 1·5 (0·1) 1·3 (0·1) 1·9 (0·1)
18 3·7 (0·4) 3·4 (0·0) 1·9 (0·3) 2·1 (0·1) 1·9 (0·1) 1·8 (0·1) 1·6 (0·1) 1·2 (0·2) 1·8 (0·1)
19 3·5 (0·0) 3·6 (0·1) 1·6 (0·2) 2·0 (0·0) 1·7 (0·2) 1·8 (0·1) 1·6 (0·1) 1·4 (0·0) 1·9 (0·2)
20 2·4(1·2) 2·3 (1·2) 1·7 (0·2) 1·3 (0·9) 1·6 (0·2) 1·7 (0·1) −0·3 (0·0) 0·2 (0·3) 1·8 (0·3)
21 3·6 (0·2) 3·5 (0·1) 1·6 (0·2) 2·0 (0·1) 1·7 (0·1) 1·8 (0·0) 1·7 (0·2) 1·5 (0·1) 1·9 (0·0)
22 3·6 (0·1) 3·6 (0·1) 1·1 (0·0) 2·1 (0·1) 1·6 (0·0) 1·5 (0·2) 1·7 (0·1) 1·1 (0·2) 1·9 (0·1)
All 3·5 (0·3) 3·4 (0·3) 1·7 (0·3) 2·0 (0·3) 1·6 (0·3) 1·7 (0·1) 1·5 (0·5) 1·1 (0·5) 1·8 (0·4)

MPN, most probable number; CFU, colony-forming units.