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Surface Water - Alabama Department of Environmental Management

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Appendix Q. Summary <strong>of</strong> periphyton assessment results. Phosphorus-limited conditions are shown in red.<br />

Reference Reaches<br />

Periphyton Metrics MAYB-1<br />

020430<br />

WLFS-9<br />

020524<br />

BRSL-3<br />

020606<br />

INMW-1<br />

020610<br />

MRTC-1<br />

020522<br />

DRYC-2<br />

020625<br />

FRMB-8<br />

020430<br />

HNMB-4<br />

020524<br />

BERD-9<br />

020625<br />

BLVC-1<br />

020610<br />

TPSL-1<br />

020605<br />

SF-2<br />

020606<br />

Level IV Ecoregion 67h 67g 68e 68e 68e 67h 67f 67f 68d 68d 68e 68e<br />

Mean Diatom<br />

Diversity<br />

3.13 5.36 3.51 3.16 3.20 3.42 3.61 4.47 4.16 3.08 3.14 3.47<br />

Appendix Q--Page 1 <strong>of</strong> 2<br />

Periphyton Chl a 0.97 13.10 2.20 1.81 0.95 4.09 0.68 0.49 1.24 2.03 5.04 2.45<br />

mg/m 2<br />

RPS Mean algal 0.69 0.46 0.56 0.68 0.47 0.93 0.64 0.53 0.61 0.74 0.76 1.48<br />

density<br />

RPS Mean % 9.0 1.0 20.0 22.0 0.0 0.0 24.0 0.0 25.3 34.2 0.0 32.0<br />

filamentous algal<br />

cover<br />

Ave. % Periphyton<br />

cover on suitable<br />

substrate<br />

9.0 2.0 28.0 23.0 0.0 0.0 24.0 0.0 35.3 45.3 0.0 36.0<br />

Ave. Max<br />

Periphyton Length<br />

inches<br />

0.6 0.4 0.5 0.4 0.0 0.0 1.0 0.0 1.0 0.5 0.0 2.1<br />

Max Periphyton<br />

Length inches<br />

3.0 0.4 1.0 2.0 0.0 0.0 1.5 0.0 4.0 1.0 0.0 8.0<br />

Ave TP µg/L 43.8 84.1 43.0 34.8 35.8 29.2 45.4 32.2 28.7 37.8 42.3<br />

Max TP µg/L 77 305 108 74 43 47 76 38 64 51 77<br />

Ave TN µg/L 395 488 241 591 805 236 446 368 1106 5062 321<br />

Max TN µg/L 757 8781 509 1118 1913 596 752 682 4577 31970 1020<br />

TN:TP 9 6 6 17 22 8 10 11 38 139 8

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