Macrobenthic invertebrate survey of Waneta and Lamoka Lakes, Schuyler County, New York, September, 1996.

133 Macrobenthic invertebrate survey of Waneta and Lamoka Lakes, Schuyler County, New York, September, 1996. Matthew Albright Willard N. Harman INTRODUCTION Schuyler County encompasses 331 square miles of the Appalachian Plateau in the Finger Lakes region (Curatolo, 1991). The county's economy is largely tourism-based, relying heavily upon its aquatic natural resources. The eutrophication of some of these water bodies, including Waneta and Lamoka Lakes (Figure 1), has had detrimental impacts on traditional lakes uses. Macrophyte growth and algal blooms have negatively impacted swimming. fishing, boating, and the perceived aesthetic qualities oftheses areas. These changes are believed to have lead to a decline in both tourism activities and in lakeside property values. In order to address these concerns, Schuyler County initiated an aquatic vegetation control program in 1986 (Curatolo. 1991). This program was to serve as an integrated approach to manage the county's aquatic resources through monitoring, research, macrophyte harvesting, upland treatment. and public education. In 1990. a comprehensive study was undertaken in order to provide baseline iniormation upon which lake management plans would be based (Curato10. 1991). This work included a characterization ofthe physical qualities of local lakes. surveys oftheir macroinvertebrate benthic populations. a description of macrophyte harvesting activities, a determination of the feasibility of conducting dredging operations in selected areas. and addressed means of reducing nutrient inputs to these lakes. This document describes the tirst of a two part benthic survey of Waneta and Lamoka Lakes. conducted 16 September. 1996. A second sampling is planned for May, 1997 in order to ensure that various life stages of organisms are represented. This database. when compared to previous work (i. e. Curatolo. 1991) and future works, will indicate the impacts of macroph}te management on the benthic faunal communities. The background material for this report is derived almost exclusively from Curatolo. 1991. BACKGROUND Waneta Lake (Figure 2) covers 781 acres in surface area. of which over 90% is located in Schuyler County. The lake occupies a volume of approximately 10.860 acre-feet and has about 6.8 miles ofshoreline. This eutrophic lake has a maximum depth of<30 feet. Approximately 450 year-round and seasonal dwellings and a Boy Scout camp line the shore. The substrate varies

134 LAMOKA LAKE Figure I. The location of Waneta, Lamoka, and Seneca Lakes in Schuyler County, New York (modified from Curatolo, 1991).

.. '6' ::-.---. ---.,',.-.-....,,:1 5 "~ i, \I.~ I ;I~!/~ I I~ i ~ i~1 ~!~, rt\ \c.,) Q.7!~I! all J~.\.,.\. '~,.'1\",.... '.). '/ I i I ',3 I,, I.\ 1" "\ I " 4 ~._.-... EB o Scout Point BoAT LAUNCH SITES UNLOADING EXTENT OF SAMPLING PUBLIC Camp N SITES VEGETATION STATION ACCESS 1000 fl 135 Figure 2. Waneta Lake, Schuyler County, New York, showing sampling stations (modified from Curatolo, 1991).

136 from silty to organic clay. Eurasian milfoil (Myriophyllum <spicatum) dominated most ofthe shallows, with plant diversity being considerably higher at the southernmost shore. At the time of sampling (16 September), all substrates were oxygenated. Lamoka Lake (Figure 3) is interconnected with Mill Pond, located in western Schuyler County at 1099 feet in elevation. These shallow «47 ft) eutrophic lakes together occupy 826 acres in surface area, 16.410 acre-feet in volume, and have approximately 11.3 miles ofshoreline. In 1990, about 325 seasonal and year-round houses occupied the shoreline. Recreational activities include swimming, fishing, and boating (Curatolo, 1991). Substrates were dominated by anaerobic organic muds; a notable exception was observed at a drop-off at the northeastern shore, where compact sand was encountered. Here, evidence ofunionid clams (i.e. shells) were seen. The predominating macrophytes ~ncountered were the nonindigenous Eurasian milfoil (Myriophyllum <spicatum) and curly leafed pondweed (Potamoge/on crispus). Toward the southern, shallower end of the lake diversity was considerably higher, with Nuphar. Ceratophyllum demersum, He/eran/hera. and Vallisineria being well represented. Interestingly, at the time of sampling milfoil was absent from the Mill Pond area. Similar flora were encountered along the channel connecting Waneta and Lamoka Lakes. Access is provided to both lakes by boat launch sites maintained by the New York State Department ofconservation (NYSDEC). Neither lake is used as a potable water supply. Both lakes have been rated as moderately impaired on the NYSDEC 1989 Priority Problem List (NYSDEC, 1989). Despite inclement weather encountered throughout the day of sampling (45-50 F, steady rain), bird activity was considerable. Large numbers oftree swallows (lridoprocne hieolor) were active on Waneta Lake, presumably feeding on emerging aquatic insects. Two ospreys (Pandion haliae/us) and parasitic jaeger (S/ercorarius parasi/iclls) were seen over Lamoka Lake; the latter seabird is extremely rare in this region and was likely displaced by recent tropical storms (Butts, 1996). MONITORING AND WATER QUALITY Temperature, dissolved oxygen, ph. and conductivity were measured using a Hydrolab Scout II multiparameter water quality monitoring instrument which had been calibrated the day of data collection following manufacturer's operating manual (Hydro lab Corp., 1993). Readings were taken at I meter (m) intervals from the surface to the bottom. The maximum depth encountered at Waneta Lake was 8.1 meters (26.6 feet); that for Lamoka Lake was 12.2 meters (40.0 feet). Waneta was undergoing fall overturn, although slight. presumably temporary stratification was observed below 8 m. Here, temperature was approxin1ately 0.3 C less than the rest of the water column and dissolved oxygen was over 2 mg/lless than overlaying waters. Conductivity was between 198-202 mmho/cm throughout. Temperature, dissolved oxygen. and ph profiles are graphically presented in Figure 4a.

137 FLEET!A-...-COVE /000 ft t N CREEK o BOAT LAUNCH SITES PUBLIC ACCESS UNLOADING SITES ~ -._.- EXTENT OF VEGETATION ffi SAMPLING STATION POND Figure 3. Lamoka Lake, Schuyler County, New York, showing sampling stations (modified from Curatolo, 1991).

138 A B 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 l -----1._.J L-..--L_J._ I _L~...L_l_..L-l.l.----.l.-_.l _I~L~ I, 1 2 1 2 I I l 3 3 I l I a -., 4 5 '-' 6 os 0. II) Cl 7 8 9 10 a -., 4 5 '-' 6 os 0. II) Cl 7 8 9 10 i I li - I 1 j I 1'\ 12 I I 11 I.J 12 _. - - - --- ".- -----. - Temperature -ph _ Dissolved Oxygen Figure 4. Profiles of temperature, ph, and dissolved oxygen for Waneta (A) and Lamoka (B) Lakes, 17 September, 1986.

139 Lamoka Lake was stratified at the time of sampling, with the thermocline located between 6 and 7 m. Hypolimnetic waters were essentially anoxic «0.3 mg/l), a situation similar to that reported by Curatolo (1991) for corresponding dates in 1988, 1989 and 1990. Conductivity was approximately 190 mmho/cm through the epi1imnion and increased below the thermocline to 213 mmho/cm at the bottom. Temperature, dissolved oxygen, and ph profiles are graphically presented in Figure 4b. Water transparency was measured using a standard 20 cm Secchi disk. Transparency was 1.9 m (6.2 ft) in Lamoka and 2.0 m (6.6 ft) in Waneta. Values reported by Curatolo (1991) indicate that Lamoka was somewhat more transparent and Waneta twice as transparent in 1996 compared to similar dates in recent years. BENTHIC INVERTEBRATE ANALYSIS METHODS Macroinvertebrates were collected from nine sites on Waneta Lake and nine sites on Lamoka Lake. These sites included eulittoral, littoral benthic, littoral vegetative, and profundal areas. The objective was to obtain taxa diversity and density data for comparison with previous (e.g. Curatolo, 1991) and future surveys in order to ascertain any effects of macrophyte and algae control programs, as well as other changes in water quality, on these organisms. Benthic samples were collected in triplicate using either a 23X23 cm 2 or a 15X15 cm 2 Ekman dredge. Larger dredges, using a conventional cable and messenger, were used in deeper locations; in shallower areas, smaller dredges were employed using extension handles. Eulittoral samples, where the substrate tended to be stony, were acquired by manually gathering all material within a 23X23 cm 2 quadrangle. Vegetative samples were collected by sweeping the macrophytes with a triangle net five times and rinsing the contents from the net. Effort was made to include the entire depth distribution of the macrophyte bed. Each sample was collected in quadruplicate. While it is recognized that these vegetative samples cannot be interpreted as truly quantitative. the attempt was made to standardize the method as much as possible so that future comparisons may be made. Upon retrieval, multiple samples were composited and passed through a #30 mesh brass screen. thus retaining all particles over 583 microns. This material was transferred to one-gallon plastic jars, to which 95% ethanol was added until a final concentration of approximately 70% ethanol was reached. Several milliliters ofrose bengal were added to each sample to later aid in the recognition ofbenthic organisms. Upon return to the laboratory. organisms were separated from the substrate by transferring each sample. spoonful at a time, into a white enamel pan and rinsing with adequate water to distribute the material. All benthic organisms were plucked and transferred to 6 dram vials containing 70% ethanol. Taxonomic identifications were made according to Pennak (1989), Peckarsky et al. (1990), and Merritt and Cummins (1996).

140 Organisms were enumerated and weighed by taxa. Wet weight was taken by removing the organisms from their vials and setting on blotting paper for 15 minutes prior to weighing to the nearest 0.1 mg on an electronic balance (Wheat, 1993). No attempt was made to count Oligochaetes, as they tended to fragment during processing. For benthic sites, where sample size was more standardized, data were converted to units per mete~ RESULTS AND DISCUSSION A description ofeach sample site, including sample type, sampling method, substrate characterization, and dominant macrophytes, is summarized in Table 1 (refer to Figure 1 for site locations). This survey revealed a total of 58 taxa; 44 and 45 taxa were encountered in Waneta Lake and Lamoka Lakes, respectively (Table 2). Generally, diversity was greater in Lamoka, where the number of taxa per site averaged 15.0, compared to 12.2 taxa per site found in Waneta. The southernmost reaches of Lamoka Lake (sites L6-L9) exhibited the greatest diversity. Here, 32 taxa were discovered, with each site averaging 22.0. This area is relatively shallow and macrophytes were likewise diverse. OveralL the Order Trichoptera (caddis flies) showed the greatest diversity, with 7 genera representing 3 families being encountered. Tables 3-20 describe the macrobenthic invertebrates for each site visited, including numbers and wet weights of each taxa found in Waneta and Lamoka Lakes. For benthic sites, abundance and biomass have been projected to units/mete~. A more intensive interpretation of these data will follow a second sampling to occur in May, 1997. This later survey will complement the present data in that larval aquatic stages not present in the fall will be included. REFERENCES Butts, W.L. 1996. Personal communication. Biological Field Station, Cooperstown, NY. Curatolo, J. 1991. Final Report. The aquatic vegetation control program in Schuyler County, 1990. 66 p. Schuller County Soil and Water Conservation District, Montour Falls, NY. Hydrolab Corporation. 1993. Scout II operating manual. Hydrolab Corp. Austin, TX. Merritt, R.W., and K.W Cummins (eds.). 1996. Aquatic insects of North America. Kendall/Hunt Publishing Company. Dubuque, IA. New York State Dept. Of Envir. Cons., 1989. New York State water quality, 1989. Bureau of Monitoring and Assessment. Division of Water. NYSDEC. Albany, NY. Peckarsky, B.L., P.R. Fraissinet, M.A. Penton, and OJ. Conklin, Jr. 1990. Freshwater macroinvertebrates of Northeastern North America. Cornell University Press. Ithaca, NY. Pennak, R.W. 1989. Freshwater invertebrates of the United States, 3rd Ed. John Wiley and Sons, Inc. New York.

141 Site Sample Type Dominant Vegetation Substrate Characterization Waneta WI Sub., 3 small dredges Myriophyllum spicatum organic clay W2 Sub., 3 small dredges M spicatum organic clay W3 Veg. 4X5 sweeps M spicatum organic clay W4 Sub., 3 large dredges none fine silty clay W5 Veg. 4X5 sweeps organic clay organic clay W6 Sub., 3 small dredges M spicatum organic detritus W7 Sub., 1 quadrangle none stones (eulittoral) W8 Veg. 4X5 sweeps Ceratophyllum demersum organic clay W9 Veg. 4X5 sweeps Nuphar variegatum, Valisanaria organic mud americana Lamoka L1 Sub., 3 large dredges L2 Sub., 3 small dredges L3 Veg. 4X5 sweeps L4 Veg. 4X5 sweeps L5 Sub., 3 small dredges L6 Veg. 4X5 sweeps L7 Veg. 4X5 sweeps L8 Veg. 4X5 sweeps L9 Veg. 4X5 sweeps none none M spicatum M spicatum M spicatum Ai spicatum N variegatm M spicatum Heteranthera dubia, C. demersum, V americana organic mud (anoxic) compact sand organic mud peaty organic mud organic mud organic mud organic mud organic mud organic mud Table 1. Description of macrobenthic invertebrate sampling sites, Waneta and Lamoka Lakes, 16 September 1996. Sub.= substrate sample, Veg.= vegetative sample, small dredge=.0232 m 2, large dredge=.0523 m 2, quadrangie=.0523 m 2

142 All Sites, 9/16/96 Waneta Lamoka Platyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Erpobdella Dina parva Rhynchobdellida Glossiphoniidae HeJobdeJJa He/obdella fusca HeJobdeJJa stagnalis Batracobdella PlacobdeJJa Piscicolidae A4yzobdeJJalugubris Mollusca Bivalvia Paleoheterodonta Unionidae Lampsilis radiata E/Jiptio complanatl/s Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Lymnaeidae Lymnaea cojumejja......... Table 2. Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September, 1996.

143 Waneta Lamoka Planorbldae Gyraulus parvus * * Gyraulus hirsutus * * Promentus exaeuous * Physidae Physa integra * Physa sayii * * Mesogastropoda Valvatidae Valvata triearinata * * Hydrobiidae Amnieo/a limosa * * Arthropoda Arachnida Acariformes Hyd rodromidae Hydrodroma * * Limnesiidae * Pionidae * Arrenuridae Arrenurus * Crustacea Isopoda Asellidae Caeeidotea * * Amphipoda Gammaridae Gammarus * * Talitridae Hyalella azteea * * Insecta Ephemeroptera Baetidae Paraeloeodes * * Caenidae Caenis * * Odonata (Anisoptera) Libellulidae Erythemis * * Corduliidae Epitheea * Table 2 (cont.). Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September, 1996.

144 /Waneta Lamoka Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma * * Lestidae Lestes * Hemiptera Pleidae Paraplea * Mesoveliidae Mesovelia * * Lepidoptera Nepticulidae * Pyralidae Acentria * * Trichoptera Leptoceridae Oecetis * Ylodes * Leptocerus * * Hydroptilidae Orthatrichia * * Oxythira * * Hydoptilla * Polycentropodidae Cemotina * Coleoptera Curculionidae * * Dytisicidae * Chrysomelidae Pyrrha/ta * Diptera Ceratopogonidae I Sphaeromias * * Probezzia * * Dasyhelea * Bezzia or Palpomyia * * Chaoboridae Chaoborus * * Chironomidae * * Table 2 (cont.). Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September, 1996.

145 Waneta Lake, Site 1 (benthic) 9/16/96 #/sample g/sample #/m"2 g/m"2 Platynelmlntnes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Tubificidae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae He/obdella stagnalis Batracobdella Placobdella Mollusca Gastropoda Mesogastropoda Hydrobiidae Amnico/a limosa Arthropoda Crustacea Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca Insecta Diptera Ceratopogonidae Sphaeromias Chaoboridae Chaoborus Chironomidae 2 0.0009 29 0.0129 NA 0.0004 NA 0.0057 NA 0.0231 NA 0.3319 4 0.0094 57 0.1351 1 0.0004 14 0.0057 1 0.0004 14 0.0057 2 0.0091 29 0.1307 1 0.0002 14 0.0029 1 0.0021 14 0.0302 25 0.0083 359 0.1193 1 0.0008 14 0.0115 1 0.0004 14 0.0057 6 0.0034 86 0.0489 Table 3. Summary ofmacrobenthic invertebrates collected from Waneta Lake, Site #1, 9/16/96 (see Figure 2 for site locations).

146 Waneta Lake, Site 2 (benthic) 9/16/96 #/sample g/sample #/m"2 g/m"2 IPlatyhelminthes Turbellaria Tricladida Planariidae 3 0.0006 43 0.0086 Nematoda 2 0.0002 29 0.0029 Annelida Oligochaeta Lumbriculida Lumbriculidae NA 0.0063 NA 0.0905 Mollusca Gastropoda Mesogastropoda Hydrobiidae Amnicola limosa 3 0.0193 43 0.2773 Arthropoda Crustacea Amphipoda Talitridae Hyalel/a azteca 40 0.0054 575 0.0776 Insecta Trichoptera Hydroptilidae Orthotrichia 1 0.0002 14 0.0029 Diptera Ceratopogonidae Sphaeromias 9 0.0206 129 0.2960 Chaoboridae Chaoborus 1 0.0003 14 0.0043 Chironomidae 7 0.0468 101 0.6724 Table 4. Summary of macrobenthic invertehrates collected from Waneta Lake, Site #2, 9/16/96 (see Figure 2 for site locations).

147 Waneta Lake, Site 3 (vegetative) 9/16/96 #/sample g/sample PlatyhelminThes Turbellaria Tricladida Planariidae 17 0.0045 Annelida Oligochaeta Haplotaxida Naididae NA 0.0024 Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus 4 0.0051 Mesogastropoda Valvatidae Valvata tn'carinata 3 0.0035 Hydrobiidae Amnicola limosa 128 0.8070 Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma 2 0.0003 Crustacea Amphipoda Talitridae Hyalella azteca 8 0.0039 Insecta Ephemeroptera Caenidae Caenis 1 0.0003 Diptera Chironomidae 307 0.1462 Table 5. Summary ofmacrobenthic invertebrates collected from Waneta Lake, Site #3,9/16/96 (see Figure 2 for site locations).

148 Waneta Lake, Site 4 (benthic) 9/16/96 #/sample g/sample #/m"2 g/m"2 Annelida Oligochaeta Lumbriculida Lumbriculidae Arthropoda Insecta Diptera Chaoboridae Chaoborus Chironomidae NA 0.0536 NA 0.34162 442 0.3812 2817 2.42957 38 0.8414 242 5.36265 Table 6. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #4, 9/16/96 (see Figure 2 for site locations).

149 Waneta Lake, Site 5 (vegetative) 9/16/96 #/sample g/sample Platynelmlnthes Turbellaria Tricladida Planariidae 38 0.0102 Annelida Oligochaeta Haplotaxida Naididae NA 0.0009 Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus panus 6 0.0071 Physidae Physa 2 0.0021 Mesogastropoda Hydrobiidae Amnicola limosa 47 0.7885 Arthropoda Crustacea Amphipoda Talitridae Hya/e/la azteca 39 0.0269 Insecta Ephemeroptera Baetidae Paracloeodes 4 0.0051 Caenidae Caenis 22 0.0047 Odonata (Zygoptera) Coenagrionidae Coenagrion or Ena//agma 18 0.0609 Lepidoptera Nepticulidae 4 0.0024 Trichoptera Hydroptilidae Orthotrichia 1 0.0002 Oxythira 6 0.0009 Hydoptilla 2 0.0003 Coleoptera Curculionidae 3 0.0039 Table 7. Summary ofmacrobenthic invertebrates collected from Waneta Lake, Site #5, 9/16/96 (see Figure 2 for site locations).

150 #/sample g/sample Diptera Ceratopogonidae Bezzia or Palpomyia 2 0.0001 Chaoboridae Chaoborus 1 0.0002 Chironomidae 85 0.0587 Table 7 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #5, 9/16/96 (see Figure 2 for site locations).

151 Waneta Lake, Site 6 (benthic) 9/16/96 #/sample g/sample #/m"2 g/m"2 IPlatyhelminthes Turbellaria Tricladida Planariidae 3 0.0016 43 0.0230 Annelida Oligochaeta Haplotaxida Naididae NA 0.0002 NA 0.0029 Tubificidae NA 0.0084 NA 0.1207 Lumbriculida Lumbriculidae NA 0.0029 NA 0.0417 Hirudinea Rhynchobdellida Glossiphoniidae Helobdella stagnalis 4 0.0176 57 0.2529 Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus 3 0.0033 43 0.0474 Mesogastropoda Hydrobiidae Amnicola limosa 32 0.3842 460 5.5201 Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma 'I 0.0001 14 0.0014 Limnesiidae 1 0.0001 14 0.0014 Crustacea Amphipoda Talitridae Hyalella azteca 106 0.0325 1523 0.4670 Insecta Ephemeroptera Caenidae Caenis 21 0.0046 302 0.0661 Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma 7 0.0084 101 0.1207 Table 8. Summary ofmacrobenthic invertebrates collected from Waneta Lake, Site #6, 9/16/96 (see Figure 2 for site locations).

152 #/sample g/sample #/mi\2 g/ml\2 Lepidoptera Nepticulidae 3 0.0026 43 0.0374 Coleoptera Dytisicidae 1 0.0031 14 0.0445 Diptera Ceratopogonidae Probezzia 1 0.0002 14 0.0029 Bezzia or Palpomyia 4 0.0003 57 0.0043 Chaoboridae ChaobonJs 1 0.0002 14 0.0029 Chironomidae 62 0.0310 891 0.4454 Table 8 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #6, 9/16/96 (see Figure 2 for site locations).

153 Waneta Lake, Site 7 (benthic) 9/16/96 #/sample g/sample #/m"2 g/m"2 IPlatyhelminthes Turbellaria Tricladida Planariidae 2 0.0008 38 0.0153 Annelida Oligochaeta Haplotaxida Naididae NA 0.0002 NA 0.0038 Tubificidae NA 0.0080 NA 0.1530 Lumbriculida Lumbriculidae NA 0.0004 NA 0.0076 Hirudinea Pharyngobdellida Erpobdellidae Erpobdella 16 0.3397 306 6.4952 Arthropoda Crustacea Amphipoda Gammaridae Gammarus 12 0.0080 229 0.1530 Insecta Diptera Chironomidae 10 0.0004 191 0.0076 Table 9. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #7, 9/16/96 (see Figure 2 for site locations).

154 Waneta Lake, Site 8 (vegetative) 9/16/96 #/sample g/sample Platyh-elmlnthes Turbellaria Tricladida Planariidae 21 0.0081 Annelida Oligochaeta Haplotaxida Naididae NA 0.0024 Hirudinea Pharyngobdellida Erpobdellidae Dina pana 1 0.0102 Rhynchobdellida Piscicolidae A4yzobdeNalugubris 1 0.0055 Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus panus 10 0.0095 Physidae Physa integra 4 0.0206 Mesogastropoda Valvatidae Valvata tricarinata 6 0.0202 Hydrobiidae Amnicola limosa 73 0.4679 Arthropoda Arachnida Acariformes Pionidae 1 0.0001 Crustacea Amphipoda Talitridae HyaleNa azteca 163 0.0694 Insecta Ephemeroptera Caenidae Caenis 15 0.0018 Table 10. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #8, 9/16/96 (see Figure 2 for site locations).

155 #/sample g/sample Odonata (Zygoptera) Coenagrionidae Coenagrion or Enal/agma 7 0.0158 Lepidoptera Nepticulidae 1 0.0010 Diptera Ceratopogonidae Bezzia Chironomidae or Palpomyia 9 86 0.0006 0.0364 Table 10 (cont.). Summary ofmacrobenthic invertebrates collected from Waneta Lake, Site #8, 9/16/96 (see Figure 2 for site locations).

156 Waneta Lake, Site 9 (vegetative) 9/16/96 #/sample g/sample rplatynelmrnthes Turbellaria Tricladida Planariidae 1 0.0004 Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium 1 0.0014 Gastropoda Basommatrophora Lymnaeidae Lymnaea columella 1 0.0109 Planorbidae Gyraulus hirsutus 2 0.0072 Physidae Physa sayii 3 0.0126 Mesogastropoda Hydrobiidae Amnicola limosa 14 0.0967 Arthropoda Crustacea Isopoda Asellidae Caecidotea 1 0.0015 Amphipoda Talitridae Hya/ella azteca 99 0.0589 Insecta Ephemeroptera Caenidae Caenis 3 0.0007 Odonata (Anisoptera) LibelluJidae Erythemis 2 0.0259 Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma 18 0.0637 Table 11. Summary of macrobenthic inv~rtebrates collected from Waneta Lake, Site #9, 9/16/96 (see Figure 2 for site locations).

157 #/sample g/sample Hemiptera Mesoveliidae Mesovelia 6 0.0043 Lepidoptera Nepticulidae 1 0.0004 Pyralidae Acentria 3 0.0034 Trichoptera Leptoceridae Leptocerus 2 0.0003 Coleoptera Curculionidae 1 0.0010 Chrysomelidae Pyrrhalta 9 0.0508 Diptera Ceratopogonidae Bezzia or Palpomyia 2 0.0003 Chironomidae 54 0.0168 Table 11 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #9, 9/16/96 (see Figure 2 for site locations).

158 Lamoka Lake, Site 1 (benthic) 9/16/96 #/sample g/sample #/m!l2 g/m!l2 Annelida Oligochaeta Haplotaxida Tubificidae Lumbriculida Lumbriculidae Arthropoda Insecta Diptera Chaobol idae Chaoborus Chironomidae NA 0.0043 NA 0.02741 NA 0.0074 NA 0.04716 198 0.1771 1262 1.12874 26 0.4282 166 2.72913 Table 12. Summary ofmacrobenthic invertebrates collected from Lamoka Lake, Site # 1, 9/16/96 (see Figure 3 for site locations).

159 Lamoka Lake, Site 2 (benthic) 9/16/96 #/sample g/sample #/m A 2 g/ml\2 IAnnelida Oligochaeta Haplotaxida Naididae NA 0.0003 NA 0.0043 Tubificidae NA 0.0011 NA 0.0158 Lumbriculida Lumbriculidae NA 0.0048 NA 0.0690 Hirudinea Rhynchobdellida Glossiphoniidae He/obdella stagnalis 1 0.0020 14 0.0287 Mollusca Bivalvia Paleoheterodonta Unionidae * Lampsilis radiata (shells only) * Elliptio comp/anatus (shells only) Veneroida Sphaeriidae Sphaerium 1 0.0018 14 0.0259 Gastropoda Mesogastropoda Hydrobiidae Amnico/a /imosa 19 0.1516 273 2.1782 Arthropoda Crustacea Amphipoda Talitridae Hya/ella azteca 11 0.0021 158 0.0302 Insecta Ephemeroptera Caenidae Caenis 2 0.0006 29 0.0086 Diptera Ceratopogonidae Probezzia 1 0.0001 14 0.0014 Chironomidae 38 0.0115 546 0.1652 Table 13. Summary ofmacrobenthic invertebrates collected from Lamoka Lake, Site #2, 9116/96 (see Figure 3 for site locations).

1 160 Lamoka Lake, Site 3 (vegetative) 9/16/96 #/sample g/sample IPlatyhelminthes Turbellaria Tricladida Planariidae 3 0.0010 Annelida Oligochaeta Haplotaxida Naididae NA 0.0002 Hirudinea Rhynchobdedida Glossiphoniidae Helobdella stagnalis 3 0.0125 Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium 1 0.0029 Gastropoda Basommatrophora Planorbidae Gyraulus parvus 5 0.0047 Promentus exacuous 2 0.0009 Physidae Physa sayii 3 0. 0150 Mesogastropoda Valvatidae Valvata tricarinata 23 0.0231 Hydrobiidae Amnicola limosa 174 0.4601 Arthropoda Crustacea Isopoda Asellidae Caecidotea 7 0.0058 Amphipoda Gammaridae Gammarus 3 0.0206 Talitridae Hyalella azteca 85 0.0452 Table 14. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #3, 9/16/96 (see Figure 3 for site locations).

161 Insecta Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enal/agma Trichoptera Leptoceridae Leptocerus Diptera Ceratopogonidae Bezzia or Palpomyia Chironomidae #/sample g/sample 3 0.2118 11 0.0126 10 0.0023 1 0.0002 23 0.008'1 Table 14 (conl). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #3, 9/16/96 (see Figure 3 for site locations).

162 Lamoka Lake. Site 4 (vegetative) 9/16/96 #/sample g/sample IPlatyhelminthes Turbellaria Tricladida Planariidae 1 0.0002 Annelida Oligochaeta Haplotaxida Naididae NA 0.0003 Hirudinea RhynchobdelHda Glossiphoniidae Helobdel/a stagnalis 1 0.0011 Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus 15 0.0160 Physidae Physa sayii 6 0.0145 Mesogastropoda Valvatidae Valvata tricarinata 1 0.0016 Hydrobiidae Amnicola limosa 467 1.6991 Arthropoda Crustacea Amphipoda Talitridae Hyalel/a azteca 3 0.0011 Insecta Ephemeroptera Caenidae Caenis 1 0.0002 Odonata (Zygoptera) Coenagrionidae Coenagrion or Ena/lagma 7 0.0523 Diptera Chironomidae 49 0.0151 Table 15. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #4, 9/16/96 (see Figure 3 for site locations).

163 Lamoka Lake, Site 5 (benthic) 9/16/96 #/sample g/sample #/m/l2 g/m/l2 IAnnellda Oligochaeta Lumbriculida Lumbriculidae NA 0.0096 NA 0.13793 Arthropoda Crustacea Amphipoda Talitridae Hyalella azteca 3 0.0005 43 0.0072 Insecta Diptera Ceratopogonidae Sphaeromias 3 0.0079 43 0.1135 Chaoboridae Chaoborus 2 0.0012 29 0.0172 Chironomidae 6 0.0090 86 0.1293 Table 16. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #5, 9/16/96 (see Figure 3 for site locations).

164 Lamoka Lake, Site 6 (vegetative) 9/16/96 #/sample g/sample IPlatynelmlnthes Turbellaria Tricladida Planariidae 2 0.0003 Annelida Oligochaeta Haplotaxida Naididae NA 0.0002 Hirudinea Rhynchobdeilida Glossiphoniidae Helobdella fusca 1 0.0039 Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium 4 0.0057 Pisidium 1 0.0021 Gastropoda Basommatrophora Planorbidae Gyraulus parvus 5 0.0016 Gyraulus hirsutus 3 0.0091 Promentus exacuous 2 0.0005 Physidae Physa sayii 7 0.0129 Mesogastropoda Hydrobiidae Amnicola limosa 336 1.1594 Arthropoda Arachnida Crustacea Isopoda Asellidae Caecidotea 1 0.0004 Amphipoda Talitridae Hyalella azteca 153 0.0665 Table 17. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #6, 9/16/96 (see Figure 3 for site locations).

165 Insecta Ephemeroptera Baetidae Paracloeodes Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Trichoptera Leptoceridae Oecetis Leptocerus Hydroptilidae Oxythira Diptera Ceratopogonidae Bezzia or Palpomyia Chironomidae #/sample g/sample 1 0.0003 7 0.0008 7 0.0855 5 0.0067 1 0.0001 15 0.0013 1 0.0003 3 0.0002 114 0.0635 Table 17 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #6, 9/16/96 (see Figure 3 for site locations).

166 Lamoka Lake, Site 7 (vegetative) 9/16/96 Platyhelminthes Turbellaria Tricladida Planariidae Hirudinea Rhynchobdellida Glossiphoniidae He/obdeJla stagnalis BatraeobdeJla Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Gastropoda Basommatrophora Planorbidae Gyrau/us hirsutus Mesogastropoda Hydrobiidae Amnieo/a /imosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma Crustacea Isopoda Asellidae Caeeidotea Amphipoda Talitridae Hya/e//a azteea Insecta Ephemeroptera Baetidae Parae/oeodes Caenidae Caenis #/sample g/sample 1 0.0001 5 0.0201 3 0.0082 3 0.0032 1 0.0053 20 0.0907 1 0.0001 1 0.0007 143 0.0674 1 0.0001 3 0.0004 Table 18. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #7,9/16/96 (see Figure 3 for site locations).

167 Odonata (Anisoptera) Libellulidae Erythemis Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Ena//agma Hemiptera Pleidae Parap/ea Mesoveliidae Mesove/ia Trichoptera Leptoceridae Y/odes Leptocerus Polycentropodidae Cemotina Diptera Ceratopogonidae Dasyhe/ea Bezzia or Pa/pomyia Chironomidae #/sample g/sample 1 0.0172 1 0.0485 41 0.1229 1 0.0013 3 0.0037 5 0.0006 25 0.0044 8 0.0145 1 0.0001 28 0.0021 66 0.0212 Table 18 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #7, 9/l6/96 (see Figure 3 for site locations).

168 Lamoka Lake, Site 8 (vegetative) 9/16/96 #/sample g/sample IPlatyhelminthes Turbellaria Tricladida Planariidae 9 0.0011 Annelida Oligochaeta Haplotaxida Naididae NA 0.0002 Mollusca Bivalvia Veneroida Sphaeriidae Pisidium 2 0.0015 Gastropoda Basommatrophora Physidae Physa sayii 2 0.0169 Hydrobiidae Amnico/a limosa 173 0.4403 Arthropoda Arachnida Acariformes Arrenuridae Arrenurus 1 0.0004 Crustacea Amphipoda Talitridae Hyalel/a azteea 336 0.0723 Insecta Ephemeroptera Baetidae Parae/oeodes 1 0.0005 Caenidae Caenis 21 0.0025 Odonata (Anisoptera) Corduliidae Epitheea 3 0.0265 Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma 21 0.0435 Table 19. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #8, 9/16/96 (see Figure J for site locations).

169 #/sample g/sample Lepidoptera Nepticulidae 1 0.0001 Pyralidae Acentria 1 0.0001 Trichoptera Leptoceridae Oecetis 3 0.0004 Leptocerus 31 0.0056 Hydroptilidae Orthotrichia 2 0.0003 Oxythira 1 0.0002 Polycentropodidae Cernotina 1 0.0015 Diptera Ceratopogonidae Dasyhe/ea 4 0.0003 Bezzia or Palpomyia 11 0.0004 Chaoboridae Chaoborus 1 0.0005 Chironomidae 92 0.0214 Table 19 (cont.). Summary ofmacrobenthic invertebrates collected from Lamoka Lake, Site #8, 9/16/96 (see Figure 3 for site locations).

170 Lamoka Lake,Site 9 (veqetative) 9/16/96 PlatYhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Hirudinea #/sample 18 NA g/sample 0.0093 0.0003 Rhynchobdellida Glossiphoniidae Helobdella 2 0.0039 Batracobdella 1 0.0046 Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium 1 0.0018 Gastropoda Basommatrophora Planorbidae Gyraulus parvus 3 0.0075 Physidae Physa sayii 7 0.0142 Mesogastropoda Hydrobiidae Amnicola limosa 116 0.3011 Arthropoda Crustacea Amphipoda Talitridae Hyalella azteca 258 0.0958 Insecta Ephemeroptera Caenidae Caenis 136 0.0611 Odonata (Anisoptera) Corduliidae Epitheca 6 0.1667 Table 20. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #9, 9/16/96 (see figure 3 for site locations).

171 #/sample g/sample Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma 28 0.0998 Lestidae Lestes 1 0.0203 Lepidoptera Nepticulidae 1 0.0002 Trichoptera Leptoceridae Oeeetis 2 0.0003 Ylades 3 0.0007 Leptacerus 369 0.1362 Polycentropodidae Cematina 4 0.0072 Coleoptera Curculionidae 1 0.0007 Diptera Ceratopogonidae Dasyhelea 7 0.0012 Bezzia or Palpomyia 9 0.0005 Chaoboridae Chaoborus 1 0.0003 Chironomidae 275 0.1368 Table 20 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #9, 9/16/96 (see Figure 3 for site locations).