248 Macrobenthic invertebrate survey of Waneta and Lamoka Lakes, Schuyler County, September 16, 1996 and May 12, 1997 M.F. Albrigh( W.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 eutrophic nature of some of these water bodies, including Waneta and Lamoka Lakes (Figure 1), has had detrimental impacts on traditional lake uses. Macrophyte growth and algal blooms have negatively impacted swimming, fishing, boating, and the perceived aesthetic qualities of theses areas. These changes are believed to have lead to a decline in both tourism and in lakeside property values (Curatolo, 1991). 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 information upon which lake management plans would be based (Curatolo, 1991). This work included a characterization of the physical qualities of the local lakes, surveys of their macroinvertebrate benthic populations, a description of macrophyte harvesting activities, a determination of the feasibility of conducting dredging operations in selected areas. It also addressed means of reducing nutrient inputs to these lakes. This document describes a two part benthic survey of Waneta and Lamoka Lakes, conducted 16 September 1996 and May 12 1997. The timing of these collections was to ensure documentation of temporal diversity. This database, when compared to previous work cited, and future works, will document the impacts of macrophyte management on the benthic faunal communities. The background material for this report is derived largely from Curatolo, 1991. BACKGROUND Waneta Lake (Figure 2) is 781 acres in surface area, of which over 90% is located in Schuyler County. The lake, at 1099 feet in elevation, occupies a volume of approximately 10,860 acre-feet and has about 6.8 miles of shoreline. This lake has a maximum depth of <30 feet. Approximately 450 dwellings and a Boy Scout camp line the shore. The substrate varies from silty to organic clay. Eurasian milfoil (Myriophyllum spicatum) dominated most of the shallows, 'Staff assistant, SUNY Oneonta, BFS 249 LAMOKA LAKE Figure 1. The location of Waneta, Lamoka, and Seneca Lakes in Schuyler County, New York (modified from Curatolo, 1991). .. --- ,:1 ::-. . "' 6' .,' . 5 250 . • ~ UNLOADING ~ .- ....... ffi SAMPLING I of BoAT LAUNCH SITES \I EXTENT \1 ;I~ o i I~ PUBLIC SITES OF VEGETATION STATION ACCESS I I ~ i ~ i I~ ffi ,~ ~ ~I 'f.) • !~1 Point 4 ! ~I J~ . \, Shoreline .\ .~ N o :\\". , ..... . '.) '/ I ',3 i Scout I,I Camp . ~ 0' \ \ I'\ 1\ I. . \. ,. i' 1000 'I .\. \' 0' \' .\ :- 2 , 1. I .•' 8 '-'-;J'. L::;J~ Figure 2. Waneta Lake, Schuyler County, New York, showing sampling stations (modified from Curatolo, 1991). 251 with plant diversity being considerably higher at the southernmost shores. On both sample dates, all substrates encountered in Waneta Lake were oxygenated. Lamoka Lake (Figure 3), contiguous with Mill Pond to the south and connected to Waneta Lake via a navigable channel to the north, is located in western Schuyler County. This shallow «47ft) eutrophic lake occupies 826 acres in surface area, 16,410 acre-feet in volume, and has approximately 11.3 miles of shoreline. In 1990, about 325 houses occupied the shoreline. Recreational activities include swimming, fishing, and boating (Curatolo, 1991). During benthic sampling, deeper substrates were dominated by anaerobic organic muds; a notable exception was observed at a drop-off at the northeastern shore (Site #L2), where compact sand was encountered. Here, shells ofUnionid clams were collected. The predominating macrophytes encountered were the nonindigenous Eurasian mil foil (Myriophyllum spicatum) and curly leafed pondweed (Potamogeton crispus). Toward the southern, shallower end of the lake diversity was considerably higher, with Nuphar, Ceratophyllum, Heteranthera, and Vallisineria being well represented. At the time of sampling milfoil was practically absent from the Mill Pond area. The channel connecting Waneta and Lamoka Lakes exhibited a flora similar to that encountered in Mill pond. Access is provided to both lakes by boat launch sites maintained by the New York State Department of Conservation (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 both days of sampling (45°-50° F, steady rain), bird activity was considerable. On 16 September 1996 large numbers of tree swallows (Iridoprocne hicolor) were active on Waneta Lake, presumably feeding on emerging aquatic insects. Two ospreys (Pandion haliaetus) and parasitic jaeger (Stercorarius parasiticus) were seen over Lamoka Lake; the latter seabird is extremely rare in this region and was likely displaced by recent tropical storms (Butts, 1996). On 12 May 1997 several species of early migrating songbirds were observed, with diversity being the greatest along the channel between the two Lakes. Two hen mallards (Anas platyrhynchos) were seen sitting on nests, and a pair of Canada geese (Branta canadensis) were seen on Lamoka Lake with newly hatched goslings. WATER QUALITY MONITORING Temperature, dissolved oxygen, pH, and conductivity were measured using a Hydrolab Scout II multiparameter water quality monitoring instrument which had been calibrated the days of data collection following manufacturer's operating manual (Hydrolab Corp., 1993). Readings were taken at 1 meter (m) intervals from the surface to the bottom. The maximum depth encountered at Waneta Lake was 8.2 meters (26.9 feet); that for Lamoka Lake was 13.4 meters (44.0 feet). On 16 September 1996, Waneta was undergoing fall overturn, although slight, presumably temporary stratification was observed below 8 m. Temperature in that area was approximately 0.3 0 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. On 252 FLEET COVE .:.-~- 1000 ft I N I • o ~ BOAT LAUNCH SITES PUBLIC ACCESS UNLOADING SITES -. _.- EXTENT OF VEGETATION E9 SAMPLING STATION POND Figure 3. Lamoka Lake, Schuyler County, New York, showing sampling stations (modified from Curatolo, 1991). 253 12 May 1997, the earliest signs of stratification were observed, with sight decreases in temperature and dissolved oxygen observed at the greatest depths. Temperature, dissolved oxygen, and pH profiles are graphically presented in Figures 4A and 4B. Lamoka Lake was stratified on 16 September, 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 epilimnion and increased below the thermocline to 213 mmho/cm at the bottom. Spring turnover was underway on 12 May, 1996.Temperature, dissolved oxygen, and pH profiles are graphically presented in Figures SA and 5B. These data, while limited, do not indicate any further shift toward eutrophy in either Waneta or Lamoka Lakes since 1988. Water samples collected on 12 May were analyzed for calcium content using the EDTA titrimetric method (APHA, 1989). Surface concentrations were 18.9 and 17.4 mg/l in Waneta and Lamoka Lakes, respectively. Water transparency was measured using a standard 20 em Secchi disk. Transparency was 2.0 m (6.6 ft) in Waneta and 1.9 m (6.2 ft) in Lamoka on 16 September 1996 and 1.2 m (3.9 ft) in both Lakes on 12 May 1997. Values reported by Curatolo (1991) indicate that Lamoka was somewhat more transparent and Waneta twice as transparent in 1996 compared to similar dates in 1988-90. THE BENTHIC INVERTEBRATE COMMUNITY METHODS Macroinvertebrates were collected from nine sites on Waneta Lake and nine sites on Lamoka. These sites included eulittoral, littoral muds, littoral vegetation, and profundal benthos. The objective was to obtain faunal diversity and density data for comparison with previous (e.g. Curatolo, 1991) and future surveys to ascertain any effects of macrophyte and algae control programs, as well as other changes in water quality or the colonization of non-native species, on these populations. Benthic samples were collected in triplicate using either a 23 X 23 cm2 or a 15 X 15 cm 2 Ekman dredge. The larger dredges, using a conventional cable and messenger, were used in deeper locations; in shallower areas, the 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 23 X 23 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 vegetative 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. 254 A 2 4 6 8 10 12 14 16 18 20 B 2 2 3 3 4 4 5 5 6 2 4 6 8 10 12 14 16 18 20 I 6 ~ ~ 6 7 o:S0... (1) Q 8 67 ..J:: ...... 11 0... (1) Q 8 9 9 10 10 11 11 12 12 13 13 14 14 SD= 2.0 M ___ Temperature SD= 1.2 M - - pH -.- Dissolved Oxygen Figure 4. Profiles of temperature (Qq, pH, and dissolved oxygen (mg/1) for Waneta Lake, 16 September, 1996 (A) and 12 May, 1997 (B). 255 2 A 4 6 8 10 12 14 16 18 20 2 B 4 6 8 10 12 14 16 18 20 1 2 2 3 3 4 4 5 5 6 9 9 10 10 11 11 12 12 13 13 14 14 SD= 1.9 M --- Temperature i SD= 1.2 M - - pH -..- Dissolved Oxygen Figure 5. Profiles of temperature (OC), pH, and dissolved oxygen (mg/l) for Lamoka Lake, 16 September, 1996 (A) and 12 May, 1997 (B). 256 Upon retrieval, multiple samples were composited and passed through a #30 mesh brass screen, thus retaining all particulate matter 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 of rose bengal were added to each sample to later aid in the recognition of benthic organisms. In 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 isolated and transferred to 6 dram vials containing 70% ethanol. Taxonomic determinations were made according to Pennak (1989), Peckarsky et at. (1990), and Merritt and Cummins (1996). Assistance with the identification of mites was provided by Lanciani (1996) and of weevils by Johnson (1997). Organisms were enumerated and weighed by taxa. Wet weight was determined by removing the organisms from their vials, setting on blotting paper for 15 minutes to remove excess alcohol, and weighing to the nearest 0.1 mg on an electronic balance (Wheat, 1994). No attempt was made to count Oligochaetes, as they tended to fragment during processing. Values indicating numbers of organisms and weights per sample represent composited triplicate (benthic) or quadruplicate (vegetative) samples. For benthic sites, where sample size was more standardized, data were converted to units per meter 2 • RESULTS AND DISCUSSION A description of each sample site, including sample type, sampling method, substrate characterization, and dominant macrophytes, is summarized in Table 1 A and B (refer to Figures 2 and 3 for site locations). A total of 81 taxa were collected in this survey, with 61 and 68 taken from Waneta and Lamoka, respectively (Table 2). The 16 September 1996 survey revealed a total of 58 taxa; 44 were collected from Waneta Lake and 45 from Lamoka. On 12 May 1997,63 taxa were taken, with 61 from Waneta and 68 from Lamoka. Generally, diversity was greater in Lamoka, where the number of taxa per site averaged 28.7, compared to 19.4 taxa per site found in Waneta. The southernmost reaches of Lamoka Lake (sites L6-L9) exhibited the greatest diversity. Here, 52 taxa were discovered, with each site averaging 32.0. This area is relatively shallow and macrophytes were likewise diverse. The Order Trichoptera (caddis flies) showed the greatest species richness, with 14 genera representing 4 families encountered. The comparatively large diversity of leptocerid and phryganeid caddisflies collected in Lamoka Lake is undoubtedly due to the marshy character of that biotope. Representatives of these families are typical of dense, but diverse submergent plant communities. Tables 3-20 describe the macrobenthic invertebrates for each site visited, including numbers and wet weights of each taxa found in both lakes. For benthic samples, abundance and biomass have been projected to units/meter2 . Some sites, where vegetative samples were collected in the first survey, benthic samples were collected in the second due to inadequate macrophyte densities in the spring. Because of this, data from some sites are not easily compared. A preliminary comparison of these data with those included in Curatolo (1991) suggest a marked 257 Site A Sample Type Dominant Vegetation Substrate Characterization Waneta WI W2 W3 W4 W5 W6 W7 W8 W9 Sub., 3 small dredges Sub., 3 small dredges Veg. 4X5 sweeps Sub., 3 large dredges Veg. 4X5 sweeps Sub., 3 small dredges Sub., I quadrangle Veg. 4X5 sweeps Veg. 4X5 sweeps LI L2 Sub., 3 large dredges Sub., 3 small dredges Veg. 4X5 sweeps Veg. 4X5 sweeps Sub., 3 small dredges Veg. 4X5 sweeps Veg. 4X5 sweeps Veg. 4X5 sweeps Veg. 4X5 sweeps Myriophyllum spicatum M. spicatum M. spicatum none M. spicatllm M. spicatum none Ceratophyllul11 de/llersum Nuphar variegatu/Il, Vallisneria americana organic clay organic clay organ ic clay fine silty clay organic clay organic detritus stones (eu littoral) organic clay organic mud Lamoka L3 L4 L5 L6 L7 L8 L9 B none none M. spicatul11 M. spicatulJl Ai spicatulll M spicatulJl N. variegat/ll M. spicatum Heterallthera dubia, C dcmersum, V. americana organ ic mud (anox ic) co 111 pact sand organ ic mud peaty organic mud organic mud organic mud organic mud organic mud organ ic mud Waneta WI W2 W3 W4 W5 W6 W7 W8 W9 Sub., 3 small dredges Sub.,3 small dredges Sub., 3 small dredges Sub., 3 large dredges Sub., 3 large dredges Sub., 3 small dredges Sub., J quadrangle Veg. 4X5 sweeps Veg. 4X5 sweeps LI Sub., 3 large dredges Sub., 3 small dredges Veg. 4X5 sweeps Veg. 4X5 sweeps Sub., 3 small dredges Veg. 4X5 sweeps Veg. 4X5 sweeps Veg. 4X5 sweeps Veg. 4X5 sweeps C demersul11"Pota!l1ogetull crisplls P. crispus P. crispus none M. spicatulll, P, crispus M. spicatum none Ceratophylluln demersulll Nuphar variegatum, Vallisneria americana organic clay organic clay organic clay fine silty clay organic clay organic detritus stones (eulittoral) organic clay organic mud Lamoka L2 L3 L4 L5 L6 L7 L8 L9 none none M. spicatum M. spicatum M. spicatum M. spicatum N. variegatm M. spicatum Heteranthera dllbia, C demersum, V americana organic mud (anoxic) compact sand organic mud peaty organic mud organic mud organic mud organic mud organic mud organic Illud Table 1. Description of macrobenthic invertebrate sampling sites, Waneta and Lamoka Lakes, 16 September 1996 (A) and 12 May 1997 (B). Sub.== substrate sample, Veg.== vegetative sample, small dredge== .0232 m 2 , large dredge= .0523 m 2, quadrangle= .0523 m 2 . 258 TAXA Il-'latyhelmlntheS Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbricidae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Erpobdella Dina paNa Alboglossiphonia heteroclita Rhynchobdellida Glossiphoniidae Helobdella Helobdella fusca Helobdella stagnalis Batracobdella Placobdella Glossiphonia complanata Piscicolidae Myzobdella lugubris Mollusca Bivalvia Paleoheterodonta Unionidae Lampsilis radiata (shells) Elliptio complanatus (shells) Veneroida Sphaeriidae Sphaerium Pisidium Waneta 09/16/96 05/12/97 Lamoka 09/16/96 05/12/97 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Table 2. Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September 1996 and 12 May 1997. 259 TAXA Gastropoda Basommatrophora Lymnaeidae Lymnaea colume/la Planorbidae Gyraulus parvus Gyraulus hirsutus Promentus exacuous Physidae Physa integra Physa sayii Ancylidae Ferrisia tarda Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a Iimosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodrom a Limnesiidae Pionidae Arrenuridae Arrenurus Sperconidae Spercon Crustacea Ostracoda Copepoda Harpacticoida Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalel/a azteca Waneta 09/16/96 05/12/97 Lamoka 09/16/96 05/12/97 * * * * ~ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * I * * * * * * * * * * * * * I Table 2 (cont.). Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September 1996 and 12 May 1997. * * * * ~ * I 260 TAXA Insecta Ephemeroptera Baetidae Paracloeodes Callibaetis Caenidae Caenis Heptageniidae Stenacron Odonata (Anisoptera) Libellulidae Erythemis Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Lestidae Lestes Hemiptera Pleidae Neoplea Mesoveliidae Mesovelia Lepidoptera Nepticulidae Pyralidae Acentria ephemerella Trichoptera Polycentropodidae Cernotina Leptoceridae Oecetis Ylodes Leptocerus Setodes Nectopsyche Ceraclea Phryganeidae Oligotricha Phryganea Waneta 09/16/96 05/12/97 * Lamoka 09/16/96 05/12/97 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Table 2 (cant). Summary of macro benthic invertebrates collected from Waneta and Lamoka Lakes, 16 September 1996 and 12 May 1997. * * 261 Waneta TAXA Hydroptilidae Orth a trichia Oxythira Hydoptilla Mayatrichia Agraylea Coleoptera Curculionidae Euhrychiopsis Dytisicidae Chrysomelidae Pyrrhalta Elmidae Dubiraphia Psephenidae Psephenus Diptera Muscidae Empididae Tabanidae Ceratopogonidae Sphaeromias Probezzia Dasyhelea Bezzia or Palpomyia Culicoides Chaoboridae Chaoborus Chironomidae Lamoka 09/16/96 05/12/97 09/16/96 05/12/97 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Table 2 (cont.). Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September 1996 and 12 May 1997. * * * * * 262 Waneta Lake Site 1 (benthic) TAXA Platyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbricidae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae Helobdella stagnalis Batracobdella Placobdella Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus Gyraulus hirsutus Promentus exacuous Physidae Physa sp. Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a limosa Arthropoda Crustacea Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca #/m"2 9/16/96 g/m"2 29 0.0129 NA 0.0057 #/m"2 5/12/97 g/m"2 29 43 0.0172 0.0043 NA 0.0460 NA 0.0101 NA 0.3319 NA 0.0603 57 14 14 0.1351 0.0057 0.0057 29 0.0690 101 14 29 0.0833 0.0029 0.0761 101 0.4468 14 0.1164 29 0.1307 345 2.2428 14 0.0029 14 0.2917 14 0.0302 359 0.1193 2572 1.9253 Table 3. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #1,9/16/96 2 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter . 263 Waneta lake Site 1 (benthic) TAXA Insecta Ephemeroptera Caenidae Caenis Odonata (Zygoptera) Coenagrionidae Coenagrion or Ena//agma Trichoptera leptoceridae Ylodes Hydroptilidae Hydoptilla Diptera Ceratopogonidae Sphaeromias Bezzia or Palpomyia Culicoides Chaoboridae Chaoborus Chironomidae 9/16/96 #/m A 2 #/m A 2 g/m A 2 I 675 I I I 5/12/97 I g/m A 2 I 0.5000 72 0.6897 14 0,0603 14 <.0014 14 0.0115 29 129 43 0.0359 0.0057 <.0014 14 86 0.0057 0.0489 14 2184 0.0115 1.4741 Table 3 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #1, 2 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter . I 264 Waneta Lake Site 2 (benthic) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nematoda Annelida Oligochaeta Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae Helobdella stagnalis Mollusca Gastropoda Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnicola limosa Arthropoda Crustacea Isopoda Asellidae Caecidotea Amphipoda Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Trichoptera Hydroptilidae Orthotrichia Diptera Muscidae Ceratopogonidae Sphaeromias Bezzia or Palpomyia Culicoides Chaoboridae Chaoborus Chironomidae #/m Il 2 9/16/96 g/m ll 2 #/m Il 2 5/12/97 g/m ll 2 43 29 0.0086 0.0029 43 <.0014 NA 0.0905 NA 0.1351 172 0.5661 43 0.0172 101 0.3836 14 0.5819 862 0.8549 158 0.1710 14 0.2457 14 0.0905 14 29 0.0029 <.0014 43 575 14 129 14 101 0.2773 0.0776 0.0029 0.296 0.0043 0.6724 Table 4. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #2, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2 . 265 Waneta Lake Site 3 (vegetative 9/15, benthic 5/12) TAXA Platyhelminthes Turbellaria Tricladida Planarlidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae Helobdella Mollusca Bivalvia Veneroida Sphaeriidae Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a limosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodro ma Crustacea Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca 9/16/96 #/samp g/samp #/m!l2 5/12/97 g/m!l2 17 0.0045 819 29 0.9239 0.0101 NA 0.0024 NA 0.2572 NA 0.4267 72 0.3506 14 0.1351 29 0.0819 29 0.3621 57 0.0014 43 0.3822 1868 1.6825 4 0.0051 3 0.0035 128 0.8070 2 0.0003 8 0.0039 Table 5. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #3, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps (9/16/96) and per meter2 (5/12/97). 266 Waneta Lake Site 3 (vegetative 9/15, benthic 5/12) TAXA Insecta Ephemeroptera Caenidae Caenis Trichoptera Leptoceridae Oecetis Hydroptilidae Orthotrichia Diptera Ceratopogonidae Culicoides Chironomidae I 9/16/96 #/samp g/samp 1 I 307 0.0003 0.1462 5/12/97 #/m 2 g/m ll 2 Il 158 0.0776 101 0.0776 72 0.0043 29 7974 <.0014 14.8635 Table 5 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #3, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps (9/16/96) and per meter2 (5/12/97). 267 Waneta Lake Site 4 (benthic) TAXA Platyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Lumbriculida Lumbriculidae Mollusca Gastropoda Mesogastropoda Hydrobiidae Amnico/a limosa Arthropoda Arachnida Acarjformes Limnesiidae Crustacea Ostracoda Amphipoda Talitridae Hyalella azteca Insecta Trichoptera Hydroptilidae Mayatrichia Diptera Chaoboridae Chaoborus Chironomidae #/m Il 2 9/16/96 g/m"2 #/m Il 2 5/12/97 g/m ll 2 ! NA 2817 242 72 <.0014 NA 9.6609 14 0.1178 14 <.0014 29 0.0014 14 <.0014 14 <.0014 3046 1940 4.1681 22.5230 0.3416 2.4296 5.3627 Table 6. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #4, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter. 268 Waneta Lake Site 5 (vegetative 9/16, benthic 5/12) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbricidae Lumbriculida Lumbriculidae Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus Physidae Physa sp. Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a /imosa Arthropoda Arachnida Acariformes Limnesiidae Crustacea Amphipoda Talitridae Hyale/la azteca Insecta Ephemeroptera Baetidae Paracloeodes Caenidae Caenis Odonata (Zygoptera) Coenagrionidae Coenagrion or Ena/lagma Lepidoptera Nepticulidae 9/16/96 g/samp #/samp #/mf\2 5/12/97 g/mf\2 I 38 0.0102 NA 0.0009 6 0.0071 2 0.0021 47 0.7885 39 0.0269 4 0.0051 22 0.0047 18 0.0609 4 0.0024 43 14 0.0187 <.0014 NA I\JA 0.0230 0.1365 NA 1.5647 14 0.0244 14 0.0216 129 1.2601 14 <.0014 302 0.3477 503 0.4943 Table 7. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #5,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps (9/16/96) and per meter2 (5/12/97). 269 Waneta Lake Site 5 (vegetative 9/16, benthic 5/12) TAXA I nchoptera Hydroptilidae Orthotrichia Oxythira Hydoptilla Coleoptera Curculionidae Euhrychiopsis Diptera Ceratopogonidae or Palpomyia Bezzia Chaoboridae Chaoborus Chironomidae 9/16/96 #/samp g/samp #/m fl 2 5/12/97 g/m fl 2 1 6 2 0.0002 0.0009 0.0003 3 0.0039 2 0.0001 29 0.0043 1 85 0.0002 0.0587 29 3966 0.0072 3.0187 Table 7 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #5, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps (9/16/96) and per metei" (5/12/97). 270 Waneta Lake Site 6 (benthic) TAXA Platyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae Helobdella stagnalis Mollusca Gastropoda Basommatrophora Planorbidae Gyraulus parvus Mesogastropoda Hydrobiidae Amnicola limosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodro ma Limnesiidae Crustacea Amphipoda Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Lepidoptera Nepticulidae #/m Il 2 43 9/16/96 g/m ll 2 #/m Il 2 5/12/97 g/m ll 2 0.0230 43 0.0029 NA NA 0.0029 0.1207 NA NA 0.0057 0.0201 NA 0.0417 NA 1.9770 57 0.2529 43 0.0474 460 5.5201 158 1.6322 14 14 <.0014 <.0014 14 0.0129 1523 0.4670 374 0.3750 302 0.0661 891 0.8477 101 0.1207 29 0.0259 43 0.0374 Table 8. Summary of macro benthic invertebrates collected from Waneta Lake, Site #6, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 271 Waneta Lake Site 6 (benthic) TAXA Tnchoptera Hydroptilidae Oxythira Agraylea Coleoptera Dytisicidae Diptera Ceratopogonidae Probezzia or Bezzia Culicoides Chaoboridae Chaoborus Chironomidae #/mf\2 Palpomyia 9/16/96 g/mf\2 14 0.0445 14 57 0.0029 0.0043 14 891 0.0029 0.4454 I I I #/mf\2 5/12/97 g/mf\2 14 14 0.0043 <.0014 14 14 <.0014 0.0029 101 3118 0.0733 2.6178 I Table 8 (cont.). Summary ofmacfobenthic invertebrates collected from Waneta Lake, Site #6, 9/16/96 and 5/12/97 (see Figure 2 fOf site locations). Densities and biomass presented per 20 vegetative sweeps. 272 Waneta Lake Site 7 (benthic) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Erpobde//a Arthropoda Crustacea Amphipoda Gammaridae Gammarus Insecta Diptera Ceratopogonidae Bezzia or Chironomidae #/mI\2 9/16/96 g/ml\2 38 0.0153 NA NA 0.0038 0.1530 NA 0.0076 306 6.4952 229 0.1530 191 0.0076 Palpomyia #/mI\2 5/12/97 g/ml\2 5 0.4949 2 17 0.0023 0.0120 Table 9. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #7,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2 • 273 Waneta Lake Site 8 (vegetative) TAXA Platyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Hirudinea Pharyngobdellida Erpobdellidae Dina parva Rhynchobdellida Glossiphoniidae Helobdella stagnalis Piscicolidae h1yzobdellalugubris Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Promentus exacuous Physidae Physa integra Physa sayii Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnicola limosa 9/16/96 #/samp g/samp 21 0.0081 NA 0.0024 1 0.0102 1 10 4 5/12/97 #/samp g/samp 4 0.0015 NA 0.0164 1 0.0038 1 1 0.0019 0.0015 1 0.0040 2 0.0093 15 0.0783 0.0055 0.0095 0.0206 6 0.0202 73 0.4679 Table 10. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #8, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 274 Waneta Lake Site 8 (vegetative) TAXA IArthropoda Arachnida Acariformes Limnesiidae Pionidae Crustacea Amphipoda Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Lepidoptera Nepticulidae Diptera Ceratopogonidae Bezzia or Palpomyia Chaoboridae Chaoborus Chironomidae 9/16/96 #/samp g/samp 5/12/97 g/samp #/samp 1 0.0002 1 0.0001 163 0.0694 14 0.0084 15 0.0018 1 0.0002 7 0.0158 1 0.0010 9 0.0006 3 <.0001 86 0.0364 1 51 0.0004 0.0481 Table 10 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #8, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 275 Waneta Lake Site 9 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Alboglossiphonia heteroclita Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Lymnaeidae Lymnaea columella Planorbidae Gyraulus parvus Gyraulus hirsutus Physidae Physa sayii Mesogastropoda Hydrobiidae Amnico/a limosa Arthropoda Crustacea Isopoda Asellidae Caecidotea 9/16/96 #/samp g/samp 1 1 0.0004 5/12/97 #/samp g/samp 5 1 0.0116 <.0001 NA NA 0.0062 0.0046 NA 0.0455 1 0.0019 2 0.0071 6 0.0054 0.0014 1 0.0109 2 0.0072 3 0.0126 1 0.0014 14 0.0967 5 0.0251 1 0.0015 4 <.0001 Table 11. Summary of macrobenthic invertebrates collected from Waneta Lake, Site #9,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 276 Waneta Lake Site 9 (vegetative) TAXA Amphlpoda Gammaridae Gammarus Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Anisoptera) Libellulidae Erythemis Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Hemiptera Mesoveliidae Mesovelia Lepidoptera Nepticulidae Pyralidae Acentria ephemerella Trichoptera Leptoceridae Leptocerus Coleoptera Curculionidae Euhrychiopsis Chrysomelidae Pyrrhalta Diptera Ceratopogonidae Bezzia or Palpomyia Culicoides Chironomidae 9/16/96 g/samp #/samp 5/12/97 #/samp g/samp 2 0.0216 99 0.0589 144 0.1551 3 0.0007 9 0.0024 2 0.0259 18 0.0637 8 0.0552 6 0.0043 1 0.0004 3 0.0034 2 0.0003 1 0.0003 1 0.0010 9 0.0508 2 0.0003 54 0.0168 5 1 53 0.0003 0.0004 0.0441 Table 11 (cont.). Summary of macrobenthic invertebrates collected from Waneta Lake, Site #9, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 277 Lamoka Lake Site 1 (benthic) TAXA Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Arthropoda Crustacea Amphipoda Talitridae Hyalella azteca Insecta Diptera Chaoboridae Chaoborus Chironomidae #/mf\2 9/16/96 g/mf\2 NA 0.0274 NA 0.0472 1262 1.1287 #/mf\2 5/12/97 g/mf\2 I~ 0.1695 43 0.0158 6767 675 6.4167 2.8750 Table 12. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #1,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2• I 278 Lamoka Lake Site 2 (benthic) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae Helobdella stagnalis Glossiphonia complanata Mollusca Bivalvia Paleoheterodonta Unionidae * Lampsilis radiata * Elliptio complanatus Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Promentus exacuous Physidae Physa integra Mesogastropoda Hydrobiidae Amnicola limosa #/mI\2 9/16/96 g/ml\2 5/12/97 #/mI\2 g/ml\2 I NA NA 0.0043 0.0158 NA 0.0690 14 0.0287 216 101 0.0690 0.0072 NA 0.1968 Ii >---'1 72 0.2615 ! -i I I I I I (shells only (shells only I, i 14 0.0259 201 0.6810 287 201 0.3879 0.3592 230 4.2888 1034 6.9483 , 273 2.1782 Table 13. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #2, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter2 . 279 Lamoka Lake Site 2 (benthic) TAXA IArthropoda Arachnida Acariformes Limnesiidae Crustacea Copepoda Harpacticoida Isopoda Asellidae Caecidotea Amphipoda Talitridae Hyalella azteca Insecta Ephemeroptera Baetidae Callibaetis Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenag rion idae Coenagrion or Enallagma Lepidoptera Pyralidae Acentria ephemerella Trichoptera Leptoceridae Leptocerus Setodes Phryganeidae Oligotricha Hydroptilidae Orthotrichia Oxythira Hydoptilla Diptera Tabanidae Ceratopogonidae Probezzia Bezzia or Palpomyia Chaoboridae Chaoborus Chironomidae I #/m"2 9/16/96 g/m"2 5/12/97 #/m"2 I g/m"2 , I I I 158 , ~ 29 14 546 0.0302 0.0086 29 <.0014 29 <.0014 244 5.6207 2213 2.3707 29 0.0920 848 0.4052 187 19.8678 187 0.5589 29 0.0201 86 115 0.0216 0.2040 14 1.6307 144 29 14 0.0029 0.0287 <.0014 43 0.7170 287 0.0402 29 13750 0.0086 6.6322 I 0.0014 0.1652 Table 13 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #2, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2 . 280 Lamoka Lake Site 3 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Alboglossiphonia heteroclita Rhynchobdellida Glossiphoniidae Helobdella stagnalis Batracobdella Placobdella Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Promentus exacuous Physidae Physa sayii Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnicola limosa 5/12/97 g/samp #/samp f 116/96 #/sari) I g/samp 3 '., 0.0010 6 I 0.0011 , I i NA 0.0002 NA 0.0015 NA 0.0028 1 0.0002 I I I 3 0.0125 2 1 1 0.0063 0.0008 0.0076 1 0.0029 3 0.0002 5 2 0.0047 0.0009 3 0.0150 I I I 23 0.0231 174 0.4601 Table 14. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #3,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 281 Lamoka Lake Site 3 (vegetative) TAXA Arthropoda Arachnida Acariformes Limnesiidae Crustacea Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Heptageniidae Stenacron Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Trichoptera Leptoceridae Leptocerus Coleoptera Psephenidae Psephenus Diptera Ceratopogonidae Bezzia or Palpomyia Chironomidae 9/16/96 #/samp g/samp I I 5/12/97 #/samp g/samp 2 <.0001 7 0.0058 2 <.0001 3 0.0231 6 0.0848 85 0.0452 2 0.0003 1 <.0001 ~1 0.0002 1 0.0003 1 0.0161 207 0.1457 3 0.2118 11 0.0126 I 10 1 23 0.0023 0.0002 0.0081 Table 14 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #3, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. I 282 Lamoka Lake Site 4 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Pharyngobdellida Erpobdellidae Erpobdella Alboglossiphonia heteroclita Rhynchobdellida Glossiphoniidae Helobdella stagnalis Mollusca Bivalvia Veneroida Sphaeriidae Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus paNus Gyraulus hirsutus Promentus exacuous Physidae Physa integra Physa sayii Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnicola limosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma Limnesiidae 9/16/96 #/samp g/samp 1 0.0002 NA 0.0003 1 15 0.0011 5/12/97 #/samp g/samp 23 0.0180 NA 0.0078 NA 0.0235 2 2 0.2111 0.0004 6 0.0235 19 0.0230 2 12 0.0226 0.0203 2 0.0282 0.0160 6 0.0145 1 0.0016 3 0.0130 467 1.6991 47 0.3464 3 8 0.0006 0.0017 Table 15. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #4, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 283 Lamoka Lake Site 4 (vegetative) TAXA Crustacea Copepoda Harpacticoida Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Trichoptera Polycentropodidae Cemotina Leptoceridae Oecetis Leptocerus Nectopsyche Phryganeidae Phryganea Hydroptilidae Agrayle a Coleoptera Elmidae Oubiraphia Diptera Ceratopogonidae or Pa/pomyia Bezzia Culicoides Chironomidae 9/16/96 #/samp g/samp 5/12/97 #/samp g/samp 4 <.0001 58 0.2960 4 0.0632 3 0.0011 344 0.4247 1 0.0002 54 0.0202 19 0.7102 22 0.1346 2 0.0131 5 11 1 <.0001 0.0028 0.0185 2 0.1291 5 0.0003 1 0.0004 69 1 384 0.0032 0.0002 0.3753 7 49 0.0523 0.0151 Table 15 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #4, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 284 Lamaka Lake Site 5 (benthic) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nematoda Annelida Oligochaeta Haplotaxida Naididae Lumbricidae Hirudinea Pharyngobdellida Erpobdellidae A/boglossiphonia heteroclita Rhynchobdellida Glossiphoniidae Batracobdel/a Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Gastropoda Basommatrophara Planorbidae Gyraulus parvus Gyraulus hirsutus Promentus exacuous Physidae Physa integra Mesogastrapoda Hydrobiidae Amnico/a limosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma Limnesiidae Sperconidae Spercon #/m/l2 NA 9/16/96 g/m/l2 5/12/97 #/m/l2 g/m/l2 287 29 0.2629 <.0014 NA 0.6466 72 0.0517 14 0.2385 72 0.0819 43 57 129 0.0675 0.1925 0.2557 14 0.0675 560 0.2557 43 57 0.0057 0.0029 14 <.0014 0.1379 Table 16. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #5,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2• 285 Lamoka Lake Site 5 (benthic) TAXA Crustacea Copepoda Harpacticoida Isopoda Asellidae Caecidotea Amphipoda Gammaridae Gammarus Talitridae Hyalella azteca Insecta Ephemeroptera Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Trichoptera Polycentropodidae Cernotina Leptoceridae Oecetis Ylodes Leptocerus Nectopsyche Hydroptilidae Agraylea Diptera Empididae Ceratopogonidae Sphaeromias Bezzia or Palpomyia Chaoboridae Chaoborus Chironomidae #/m"2 43 43 29 86 9/16/96 g/m"2 0.0072 5/12/97 #/m"2 g/m"2 -~ 158 0.0014 833 15.3046 14 0.0618 4986 7.0833 1911 0.6523 201 11.9828 201 0.7658 29 0.0445 129 29 29 43 0.0445 0.0330 0.0043 0.0374 14 0.0014 14 0.0115 603 0.0733 7701 6.6020 0.1135 0.0172 0.1293 Table 16 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #5, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per meter 2 • 286 Lamoka Lake Site 6 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nemotoda Annelida Oligochaeta Haplotaxida Naididae Hirudinea Rhynchobdellida Glossiphoniidae He/obdella fusca Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Gyraulus hirsutus Promentus exacuous Physidae Physa integra Physa sayii Ancylidae Ferrisia tarda Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a limosa Arthropoda Arachnida Acariformes Hydrodromidae Hydrodroma Sperconidae Spercon 9/16/96 g/samp #/samp 2 NA 0.0003 0.0002 5/12/97 g/samp #/samp 1 6 0.0017 0.0007 NA 0.0025 1 0.0039 4 1 0.0057 0.0021 1 56 0.0132 0.1685 5 3 2 0.0016 0.0091 0.0005 11 6 9 0.0191 0.0235 0.0231 2 0.0247 7 0.0129 1 0.0006 15 0.0422 109 0.3347 2 0.0002 1 <.0001 336 1.1594 Table 17. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #6,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 287 Lamoka Lake Site 6 (vegetative) TAXA Crustacea Copepoda Harpacticoida Isopoda Asellidae Caecidotea Amphipoda Talitridae Hyalella azteca Insecta Ephemeroptera Baetidae Paracloeodes Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Hemiptera Pleidae Neoplea Trichoptera Polycentropod idae Cernotina Leptoceridae Oecetis Leptocerus Ceraclea Hydroptilidae Oxythira Diptera Ceratopogonidae Sphaeromias or Palpomyia Bezzia CUlicoides Chaoboridae Chaoborus Chironomidae 9/16/96 #/samp g/samp 5/12/97 #/samp g/samp 1 <.0001 1 0.0004 31 0.0288 153 0.0665 195 0.3137 I I I I 1 0.0003 I 7 0.0008 329 0.1723 7 0.0855 11 0.4651 5 0.0067 16 0.1419 6 0.0078 3 0.0243 I I 1 15 0.0001 0.0013 3 1 2 0.0047 0.0001 0.0002 1 0.0003 1 0.0004 3 121 1 0.0022 0.0257 0.0002 1 1012 0.0016 0.7229 I 3 0.0002 114 0.0635 Table 17 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #6, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. I 288 Lamoka Lake Site 7 (vegetative) TAXA Platyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae He/obde/la stagnalis Batracobde/la Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Gyraulus hirsutus Promentus exacuous Physidae Physa Mesogastropoda Hydrobiidae Amnicola limosa Arthropoda Arachnida Acariformes Hyd rod romidae Hydrodroma Crustacea Isopoda Asellidae Caecidotea Amphipoda Talitridae Hyale/la azteca 9/16/96 #/samp g/samp 1 0.0001 5/12/97 #/samp g/samp 2 0.0012 NA 0.0123 1 1 0.0460 0.0050 2 0.0015 1 0.0008 1 0.0011 5 0.0012 , 5 3 0.0201 0.0082 3 0.0032 1 0.0053 I 20 0.0907 1 0.0001 1 0.0007 55 0.2098 143 0.0674 114 0.1446 Table 18. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #7, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. I 289 Lamoka Lake Site 7 (vegetative) TAXA Insecta Ephemeroptera Baetidae Parae/oeodes Caenidae Caenis Odonata (Anisoptera) Libellulidae Erythemis Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Hemiptera Pleidae Neoplea Mesoveliidae Mesovelia Trichoptera Polycentropodidae Cernotina Leptoceridae Ylodes Leptocerus Diptera Ceratopogonidae Sphaeromias Oasyhelea or Palpomyia Bezzia Chironomidae 9/16/96 #/samp g/samp 1 0.0001 3 0.0004 1 0.0172 1 0.0485 41 0.1229 1 0.0013 3 0.0037 8 0.0145 5 25 0.0006 0.0044 1 28 66 0.0001 0.0021 0.0212 5/12/97 #/samp g/samp 3 0.0002 3 0.0084 1 0.0003 1 <.0001 65 0.0251 Table 18 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #7, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 290 Lamoka Lake Site 8 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Nematoda Annelida Oligochaeta Haplotaxida Naididae Hirudinea Rhynchobdellida Glossiphoniidae Glossiphonia complanata Mollusca Bivalvia Veneroida Sphaeriidae Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Promentus exacuous Physidae Physa sayii Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnicola limosa Arthropoda Arachnida Acariformes Limnesiidae Arrenuridae Arrenurus Crustacea Ostracoda Copepoda Harpacticoida 9/16/96 #/samp g/samp 5/12/97 #/samp g/samp 9 0.0011 11 1 0.0049 <.0001 NA 0.0002 NA 0.0099 2 0.0028 5 0.0232 1 7 0.0022 0.0129 5 0.0272 3 0.0163 80 0.2766 2 <.0001 1 <.0001 1 <.0001 I 2 2 173 1 0.0015 0.0169 0.4403 0.0004 Table 19. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #8,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 291 Lamoka Lake Site 8 (vegetative) TAXA Isopoda Asellidae Caeeidotea Amphipoda Talitridae Hya/e//a azteea Insecta Ephemeroptera Baetidae Parae/oeodes Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheea Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Lepidoptera Nepticulidae Pyralidae Aeentria ephemere//a Trichoptera Polycentropodidae Cernotina Leptoceridae Oeeetis Y/odes Leptocerus Hydroptilidae Orthotrichia Oxythira Diptera Ceratopogonidae Sphaeromias Dasyhe/ea Bezzia or Pa/pomyia Cu/ieoides Chaoboridae Chaoborus Chironomidae 9/16/96 #/samp g/samp I 5/12/97 #/samp g/samp 3 0.0002 328 0.3508 336 0.0723 1 0.0005 21 0.0025 174 0.0558 3 0.0265 5 0.1843 21 0.0435 51 0.3404 1 0.0001 1 0.0001 1 0.0074 1 0.0015 2 0.0305 3 0.0004 31 0.0056 1 1 67 0.0002 0.0075 0.0662 2 1 0.0003 0.0002 3 0.0002 1 0.0026 4 11 0.0003 0.0004 69 2 0.0070 0.0001 1 92 0.0005 0.0214 419 0.2867 I Table 19 (cont.). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #8, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 292 Lamoka Lake Site 9 (vegetative) TAXA IPlatyhelminthes Turbellaria Tricladida Planariidae Annelida Oligochaeta Haplotaxida Naididae Tubificidae Lumbriculida Lumbriculidae Hirudinea Rhynchobdellida Glossiphoniidae He/obdella Helobdella fusca Batracobdella Mollusca Bivalvia Veneroida Sphaeriidae Sphaerium Pisidium Gastropoda Basommatrophora Planorbidae Gyraulus parvus Promentus exacuous Physidae Physa sayii Mesogastropoda Valvatidae Valvata tricarinata Hydrobiidae Amnico/a limosa Crustacea Amphipoda Talitridae Hyalella azteca 9/16/96 g/samp #/samp 18 0.0093 NA 0.0003 5/12/97 g/samp #/samp 19 0.0008 NA 0.0002 NA 0.0005 3 0.0075 2 0.0071 4 0.0021 1 0.0016 I 2 0.0039 1 0.0046 1 0.0018 3 7 0.0075 0.0142 116 0.3011 37 0.0452 258 0.0958 76 0.0794 Table 20. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #9,9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 293 Lamoka Lake Site 9 (vegetative) TAXA Insecta Ephemeroptera Caenidae Caenis Odonata (Anisoptera) Corduliidae Epitheca Odonata (Zygoptera) Coenagrionidae Coenagrion or Enallagma Lestidae Lestes Lepidoptera Nepticulidae Trichoptera Polycentropodidae Cernotina Leptoceridae Oecetis Ylodes Leptocerus Hydroptilidae Orthotrichia Coleoptera Curculionidae EUhrychiopsis Diptera Ceratopogonidae Dasyhelea Bezzia or Palpomyia Culicoides Chaoboridae Chaoborus Chironomidae 9/16/96 #/samp g/samp 5/12/97 g/samp #/samp 136 0.0611 51 0.0258 6 0.1667 2 0.1349 28 0.0998 8 0.0334 1 0.0203 1 0.0002 4 0.0072 2 3 369 0.0003 0.0007 0.1362 1 2 36 0.0004 0.0038 0.0382 2 0.0005 41 2 0.0013 0.0004 22 377 0.0039 0.5634 1 0.0007 7 9 0.0012 0.0005 1 275 0.0003 0.1368 Table 20 (cont). Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #9, 9/16/96 and 5/12/97 (see Figure 2 for site locations). Densities and biomass presented per 20 vegetative sweeps. 294 increase in benthic biodiversity. However, this is likely due to extraneous factors, such as differences in sampling and processing techniques and the taxonomic level to which some groups were determined. Acentria ephemerella, a larval aquatic moth, and Euhrychiopsis lecontei, an aquatic weevil, were collected in this survey. These organisms are known to feed consistently upon Myriophyllum spicatum (Eurasion watermilfoil). Recent research on E. lecontei suggests that this beetle has the potential to serve as an effective tool in managing milfoil (Sheldon, 1997). Neither of these insects was found in significant numbers; however, harvesting milfoil may have limited their populations. These animals tend to live in the upper portion of milfoil beds, feeding primarily on apical meristems of plants. Mechanical plant harvesting, therefore, has severe negative impacts on the populations of these animals (Sheldon, 1997; Harman et at., 1997). Limiting or discontinuing harvesting may result in a long term, self sustaining means of controlling milfoil. Waneta and Lamoka Lakes seem likely candidates for zebra mussel colonization. Calcium concentrations of approximately 18 mg/l, coupled with pH values of7.4-7.7 encountered in the Lakes, provide for conditions suitable for these organisms. Given the proximity of these Lakes to infested waters, including Seneca and Cayuga Lakes, and the readily available access afforded by convenient boat launching facilities, a protocol for preventing the introduction of these organisms would seem appropriate. REFERENCES APHA, AWWA, WPCF. 1989. Standard methods for the examination of water and wastewater, 17 th ed. American Public Health Association. Washington, DC. Butts, W.L. 1996. Personal communication. Biological Field Station, Cooperstown, NY. Curatolo, 1. 1991. Final Report. The aquatic vegetation control program in Schuyler County, 1990. 66 p. Schuyler County Soil and Water Conservation District, Montour Falls, NY. Harman, W.N., L.P. Sohacki, M.F. Albright, and D.L. Rosen. 1997. The state of Otsego Lake, 1936-96. Occasional Paper #30, SUNY Oneonta Bio. Fld. Sta., SUNY Oneonta. Hydrolab Corporation. 1993. Scout II operating manual. Hydrolab Corp. Austin, TX. Johnson, R. 1997. Personal communication. Cornell University. Ithaca, NY. Lanciani, C. 1996. Personal communication. University of Florida. Gainesville, FL. Merritt, R.W., and K.W Cummins (eds.). 1996. Aquatic insects of North America. Kendall/Hunt Publishing Company. Dubuque, IA. 295 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 J\Jorth America. Cornell University Press. Ithaca, NY. Pennak, R.W. 1989. Freshwater invertebrates of the United States, 3rd Ed. John Wiley and Sons, Inc. New Yark. Wheat, E. 1994. A study of the macrobenthos of the eulittoral zone of Otsego Lake. /n 26th Ann. Rept., 1994. Pp. 122-126. SUNY Oneonta Bio. Fld. Sta., SUNY Oneonta.
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