environmental setting, water quality, and ecological indicators of
environmental setting, water quality, and ecological indicators of
environmental setting, water quality, and ecological indicators of
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64<br />
Appendix 7. Habitat assessment results using U.S. Environmental Protection Agency’s Rapid Bioassessment Protocols for <strong>ecological</strong> data-collection sites in<br />
southwestern Louisiana, 2001<br />
Site<br />
number<br />
(fig. 17)<br />
Abbreviated<br />
site name 2<br />
Instream<br />
cover<br />
(percent<br />
submerge<br />
d habitat)<br />
Pool<br />
substrate<br />
characterization<br />
(substrate<br />
<strong>quality</strong>)<br />
Pool<br />
variability<br />
(pool<br />
<strong>quality</strong>)<br />
Sediment<br />
deposition<br />
(percent<br />
recent<br />
deposition)<br />
Habitat variables 1<br />
Channel<br />
flow<br />
status<br />
(percent<br />
available<br />
channel<br />
exposed)<br />
Channel<br />
alteration<br />
(percent<br />
channelized<br />
stream<br />
reach)<br />
Channel<br />
sinuosity<br />
(stream<br />
bends<br />
increase<br />
length)<br />
Bank<br />
stability<br />
(erosion <strong>of</strong><br />
streambank)<br />
Bank<br />
vegetation<br />
protection<br />
(percent<br />
vegetative<br />
cover)<br />
1 Habitat variables descriptions are included in appendix 6.<br />
2<br />
Complete site name is listed in appendix 1.<br />
* RBP = Rapid Bioassessment Protocols include a visual-based habitat assessment for low gradient streams, modified for use in this study (Barbour <strong>and</strong> others, 1999).<br />
Riparian<br />
vegetative<br />
zone<br />
width<br />
(meter)<br />
RBP *<br />
site<br />
score<br />
range<br />
RBP *<br />
site habitat<br />
rating<br />
1 Des Cannes 15 14 18 3 18 8 6 10 20 20 132 Suboptimal<br />
2 Wik<strong>of</strong>f 14 9 16 12 18 17 8 14 16 20 144 Suboptimal<br />
3 Plaquemine 16 9 13 7 15 15 9 6 18 20 128 Suboptimal<br />
4 Boggy 18 15 17 20 18 20 18 12 20 20 178 Optimal<br />
5 Castor 14 18 19 18 16 15 14 14 16 18 162 Optimal<br />
6 Nezpique 16 15 18 11 17 20 18 14 14 20 163 Optimal<br />
7 Mermentau 20 15 18 13 20 8 15 20 20 20 169 Optimal<br />
11 Lacassine 18 15 15 8 18 20 20 20 20 20 174 Optimal<br />
12 Tortue 9 8 12 3 14 6 3 2 14 18 89 Marginal<br />
13 Gr<strong>and</strong> Marais 13 8 8 3 18 10 3 6 16 4 89 Marginal<br />
14 Theriot 7 7 8 1 14 10 6 10 10 15 88 Marginal<br />
15 East Lacassine 2 3 15 17 18 13 8 14 9 8 107 Suboptimal<br />
19 Church Point 11 13 8 14 14 18 13 16 12 8 127 Suboptimal<br />
20 Mallet 17 13 8 4 17 19 18 16 10 20 142 Suboptimal<br />
21 Guidry 16 10 13 8 17 15 19 8 10 20 136 Suboptimal<br />
22 Blue 16 10 18 15 20 20 20 18 18 20 175 Optimal<br />
23 Upper Des Cannes 14 8 13 6 18 18 17 20 20 20 154 Suboptimal<br />
24 Caney 18 15 16 15 18 20 10 18 20 20 170 Optimal<br />
25 Whisky 20 20 20 15 20 20 18 18 20 20 191 Optimal
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