LEWIS SMITH LAKE - Auburn University

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Fifty-four algal taxa were identified from samples taken from Smith Lake (Table 10-39). These taxa are generally common constituents of lake phytoplankton communities in this region (Taylor et al. 1979). Green algal taxa were most numerous although diatoms were not always identified to genus. Pennate and centric diatoms were common and abundant throughout the reservoir and, in aggregate, were numerically dominant on most sampling occasions (Table 10-40). The most commonly encountered pennate diatoms that could be identified without special preparation were Fragilaria spp. and Asterionella spp. The centric diatoms, Melosira distans and M. granulata were common and abundant. M. distans was frequently the dominant alga (Table 10-40). Dinobryon sp. is another chrysophyte that was common and occasionally dominant. Dominant green algae included Chlamydomonas §1m., Ankistrodesmus convolutus, Cosmarium §1m. and Staurastrum §1m. Among the dominant phytoplankton genera, all occur with great frequency in reservoirs ofthe southeastern United States (Taylor et al. 1979). Palmer (1969) listed Ankistrodesmus, Chlamydomonas and Melosira as genera ofalgae tolerant oforganic pollution. A euglenophyte, Trachelomonas §Jill., was abundant and sometimes dominant in the winter and spring. Dinobryon spp., a genus usually associated with cool, clear, well-oxygenated waters was abundant during the spring in Smith Lake. Phaeophytin-corrected, chlorophyll !! concentration is an indicator ofphytoplankton biomass and is a variable often used to determine the trophic status oflakes in the absence ofmacrophytes (Carlson 1977 and EPA 1990). It is a variable that integrates the physical, chemical and biological environmental components into one expression ofbiotic response and is, therefore, superior to simple physical (water transparency) or chemical (nutrients) variables used to characterize trophic status (Hem et al. 1981). Corrected chlorophyll !! concentrations from about 6.4 to 56 I-'gIL are indicative ofeutrophic waters (Carlson 1977). Waters having concentrations> 56.0 I-'gIL are considered hypereutrophic and waters with concentrations of from 1.0 to
Table 10-39. Phytoplankton taxa by major group indicating occurrence at selected stations in Smith Lake during the 19 Division Algal Taxa Station 2 3 4 5 6 7 CHLOROPHYTA Acanthosphaera X Aclinastrum sp. X X X X X X X Ankistrodesmus convolutus X X X X X X X Ankistrodesmus falcatus X X X X X X X --IV Ankistrodesmus fusifonnis Ankislrodesmus nannoselene X X X X X X X X X X Arthrodesmus sp. X X X X X X X Chlamvdomonas sp. X X X X X X X Chodatella sp. X X Closterioosis sp. X X X X X X X Closterium sp. X X X X X X X Coelastrum sp. X X X Cosmarium sp. X X X X X X X Crucil!enia sp. X X X X X X X
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LEWIS SMITH LAKE Phase I Diagnostic
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EXECUTIVE SUMMARY
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January 1986 (Bayne et al. 1987). T
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Total alkalinity, the concentration
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found at concentrations ranging fro
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etween 10 and 15 mgIL as CaCO, but
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Table 1-1. Table 1-2. Table 2-1. Ta
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List ofTables (Continued) Table 10-
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List ofTables (Continued) Table 10-
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LIST OF FIGURES Figure 8-I. Locatio
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PARTI. DIAGNOSTIC STIJDY 1
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Table I-I. Morphometric characteris
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2.0 BASIN GEOLOGY AND DRAINAGE Smit
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Table 2-1 (Cont'd) Suitability/Limi
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4.0 SIZE AND ECONOMIC STRUCTIJRE OF
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- U. II Table 4-2. Number ofbusines
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I, Table 4-4. Agricultural producti
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7.0 LAKE USE COMPARISON WIlli NEARB
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00 Table 8-1. Actual point source l
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N 0 Table 8-1 (Continued) Actual To
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N N Table 8-1 (Continued) Actual To
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Table 8-1 (Continued) Actual Total
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tv 0- Table 8-2 (Continued) Permitt
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Annual point source total suspended
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Table 9-1. Location oftributary sam
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nitrogen, nitrite-nitrogen, total a
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highly positively correlated (p < 0
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(31.4% and 30.5%, respectively). Ro
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In 1985, the paucity ofinfonnation
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population of 1.15 million. In addi
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V> tv Table 10-1. Schedule of activ
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..,. en IN o 2 4 i Miles Figure 10-
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sample were poured into Nalgene"' c
Page 84: flows encountered in 1995,428 days.
Page 87 and 88: Table 10-6. Mean (range) temperatur
Page 89: Table 10-8. Mean (range) temperatur
Page 94 and 95: Examination oftemperature, DO and s
Page 96 and 97: Table 10-10. Mean (range) turbidity
Page 98 and 99: Table 10-12. Mean (range) turbidity
Page 100 and 101: Table 10-14. Mean (range) Secchi di
Page 102 and 103: Table 10-16. Mean (range) Secchi di
Page 105 and 106: a low of 7 mgIL to a high of67 mgIL
Page 107 and 108: Table 10-18. Mean (range) pH, total
Page 109 and 110: Table 10-20. Mean (range) pH, total
Page 111 and 112: Table 10·21. Ammonia, nitrite, nit
Page 113 and 114: Table 10-23. Mean (range) ammonia,
Page 115 and 116: in concert with changes in algal bi
Page 117 and 118: Table 10-25. Orthophosphate and tot
Page 119 and 120: Table 10-27. Mean (range) orthophos
Page 121 and 122: stratification (Fig. 10-2). During
Page 123: Table 10-30. Chloride, total organi
Page 126 and 127: Table 10-33. Mean (range) chloride,
Page 128 and 129: In August 1986, iron and manganese
Page 130 and 131: 1971). Productivity measured during
Page 132 and 133: Table 10-36. Mean (range) phytoplan
Page 134: Table 10-38. Mean (range) phytoplan
Page 145: (station 2) in the winter to a high
Page 149 and 150: Table 10-41. Mean (range) phytoplan
Page 151 and 152: Table 10-42. Mean maximum dry weigh
Page 153 and 154: Table 10-43. Temporal and spatial v
Page 155 and 156: 11.0 BIOLOGICAL RESOURCES 11.1 Fish
Page 157 and 158: Table 11-1. Total number, catch per
Page 159 and 160: Table \\-3. Ranking by quality indi
Page 161 and 162: Table 11-5. Checklist of fish speci
Page 163 and 164: Table 11-5 (Continued) Scientific N
Page 165: 11.2 WILDLIFE A checklist ofbirds,
Page 169 and 170: Table 11-7 (Continued) Family Scien
Page 174: Table 11-7 (Continued) Family Scien
Page 181 and 182: PART II. FEASffiILITY STUDY 154
Page 183 and 184: from Atlanta, Georgia received an a
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An additional source ofnutrients to
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Indirectly, low pH can result in hi
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13. Are there additional feasible a
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Bayne, D. R., W. C. Seesock, P. P.
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Taylor, W.D., S.c. Hem, L.R. Willia
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LEWIS SMITH LAKE - Auburn University

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