Macrobenthic invertebrate survey of Waneta and Lamoka ... con… · Macrobenthic invertebrate...

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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 of theses 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 of the physical qualities of local lakes. surveys oftheir macro invertebrate 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 of shoreline. 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).

135

1000 fl

N

BoAT LAUNCH SITES

UNLOADING SITES

EXTENT OF VEGETATION

SAMPLING STATION

PUBLIC ACCESS

Point

Scout Camp

• ~ ._.- ....

EB o

•4

.. ::-.---'6' .,',. --- .-.-......... .,,:1 5 "~

i , \I .~ I ;I~ !/~ I I~ i ~ i~1 ~ !~, rT\ \c.,) Q.7

!~I ! allJ~ .\. , .\ . '~, .'1\", ...... . '.).

'/

I i I ',3

I, ,I.\ 1""\I "

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 of the 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 of shoreline. 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 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 the day of sampling (45°-50° F, steady rain), bird activity was considerable. Large numbers of tree 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

/000 ft t

!A-........-COVE

CREEK

POND

FLEET

•

o•~ -. _.- EXTENT OF VEGETATION

ffi SAMPLING STATION

N

BOAT LAUNCH SITES

PUBLIC ACCESS

UNLOADING SITES

Figure 3. Lamoka Lake, Schuyler County, New York, showing sampling stations (modified from Curatolo, 1991).

A

1

2

3

4

5 -.,

a '-' 6 oS 0. II)

Cl 7

8

9

10

1'\

12

138

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~

1

I2I

l

3 I l

I i I4 l

I

5 I

-.,

a '-' 6 oS 0. II)

-Cl 7

8

9

10

11 I I

I

1 j I

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 cm2 or a 15X15 cm2

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 cm2 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 of rose bengal were added to each sample to later aid in the recognition of benthic 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 of each 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 W2 Sub., 3 small dredges W3 Veg. 4X5 sweeps W4 Sub., 3 large dredges W5 Veg. 4X5 sweeps W6 Sub., 3 small dredges W7 Sub., 1 quadrangle W8 Veg. 4X5 sweeps W9 Veg. 4X5 sweeps

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

Myriophyllum spicatum M spicatum M spicatum none organic clay M spicatum none Ceratophyllum demersum Nuphar variegatum, Valisanaria americana

none none M spicatum M spicatum M spicatum Ai spicatum N variegatm M spicatum Heteranthera dubia, C. demersum, V americana

organic clay organic clay organic clay fine silty clay organic clay organic detritus stones (eulittoral) organic clay organic mud

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 m2,

large dredge= .0523 m2, quadrangIe= .0523 m2•

142

All Sites, 9/16/96 TAXA 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

Lamoka Planorbldae

TAXA Waneta

*Gyraulus parvus * *Gyraulus hirsutus * *

Physidae Promentus exaeuous

Physa integra * *

Mesogastropoda Valvatidae

Physa sayii *

* Hydrobiidae

Valvata triearinata *

* Arthropoda

Arachnida Acariformes

Hydrodromidae

Amnieo/a limosa *

* Limnesiidae

Hydrodroma * *

Pionidae * Arrenuridae

* Crustacea

Isopoda Asellidae

Arrenurus

* Amphipoda

Gammaridae

*Caeeidotea

* * Talitridae

Gammarus

* * Insecta

Ephemeroptera Baetidae

Hyalella azteea

* Caenidae

Paraeloeodes *

* Odonata (Anisoptera)

Libellulidae

Caenis *

Erythemis * * Corduliidae

*Epitheea

Table 2 (cont.). Summary of macrobenthic invertebrates collected from Waneta and Lamoka Lakes, 16 September, 1996.

144

TAXA /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

Ortha trichia * * 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 TAXA #/sample g/sample #/m"2 g/m"2 Platynelmlntnes


Planariidae Annelida


Tubificidae Lumbriculida

Lumbriculidae Hirudinea


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 of macrobenthic 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 TAXA #/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 TAXA #/sample g/sample PlatyhelminThes


Planariidae 17 0.0045 Annelida


Naididae NA 0.0024 Mollusca


Planorbidae Gyraulus parvus 4 0.0051


Valvata tn'carinata 3 0.0035 Hydrobiidae

Amnicola limosa 128 0.8070 Arthropoda


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 of macrobenthic 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 TAXA #/sample g/sample #/m"2 g/m"2 Annelida


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


149

Waneta Lake, Site 5 (vegetative) 9/16/96 TAXA #/sample g/sample Platynelmlnthes






Planorbidae Gyraulus paNus 6 0.0071

Physidae Physa 2 0.0021



Crustacea Amphipoda

Talitridae Hya/e/la azteca 39 0.0269


Baetidae Paracloeodes 4 0.0051


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


150

TAXA #/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 TAXA #/sample g/sample #/m"2 g/m"2 IPlatyhelminthes


Planariidae 3 0.0016 43 0.0230 Annelida


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


Caenidae Caenis 21 0.0046 302 0.0661


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

TAXA #/sample g/sample #/mI\2 g/ml\2 Lepidoptera

Nepticulidae Coleoptera

Dytisicidae Diptera

Ceratopogonidae Probezzia Bezzia or Palpomyia

Chaoboridae ChaobonJs

3 0.0026 43 0.0374

1 0.0031 14 0.0445

1 0.0002 14 0.0029 4 0.0003 57 0.0043

1 0.0002 14 0.0029 Chironomidae 62 0.0310 891 0.4454

Table 8 (cont.). Summary of macro benthic 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 TAXA #/sample g/sample #/m"2 g/m"2


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



Gammarus 12 0.0080 229 0.1530 Insecta

Diptera Chironomidae 10 0.0004 191 0.0076


154

Waneta Lake, Site 8 (vegetative) 9/16/96 TAXA g/sample Platyh-elmlnthes


Planariidae

#/sample

0.0081 Annelida


Naididae

21

0.0024 Hirudinea

Pharyngobdellida Erpobdellidae

NA

0.0102 Rhynchobdellida

Piscicolidae

1Dina paNa

A4yzobdeNalugubris 1 0.0055 Mollusca


Planorbidae Gyraulus paNUS 10 0.0095

Physidae Physa integra 4 0.0206


Valvata tricarinata 6 0.0202 Hydrobiidae



Pionidae 1 0.0001 Crustacea


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

TAXA #/sample g/sample Odonata (Zygoptera)

Coenagrionidae Coenagrion or Enal/agma 7 0.0158

Lepidoptera Nepticulidae 1 0.0010


Bezzia Chironomidae

or Palpomyia 9 86

0.0006 0.0364

Table 10 (cont.). Summary of macrobenthic 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 TAXA #/sample g/sample

rPlatynelmrnthes Turbellaria

Tricladida Planariidae 1 0.0004

Mollusca Bivalvia


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


Isopoda Asellidae

Caecidotea 1 0.0015 Amphipoda

Talitridae Hya/ella azteca 99 0.0589



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

g/sample Hemiptera

Mesoveliidae

#/sampleTAXA

0.0043 Lepidoptera

Nepticulidae

6Mesovelia

0.0004 Pyralidae

1

0.0034 Trichoptera

Leptoceridae

Acentria 3

0.0003 Coleoptera

Curculionidae

2Leptocerus

0.0010 Chrysomelidae

1

0.0508 Diptera

Ceratopogonidae Bezzia or Palpomyia

9Pyrrhalta

2 0.0003 Chironomidae 0.016854

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 TAXA #/sample g/sample #/m!l2 g/m!l2 Annelida


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 of macrobenthic 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 g/ml\2#/mA2

IAnnelida Oligochaeta

Haplotaxida Naididae

g/sample#/sampleTAXA

0.0043 Tubificidae

NANA 0.0003 0.0158

Lumbriculida Lumbriculidae

NANA 0.0011

0.0690 Hirudinea


NA0.0048NA

0.0287 Mollusca

Bivalvia Paleoheterodonta

Unionidae

141 0.0020He/obdella stagnalis

(shells only) * Lampsilis radiata (shells only)


* Elliptio comp/anatus

0.0259 Gastropoda


14Sphaerium 1 0.0018

2.1782 Arthropoda

Crustacea Amphipoda

Talitridae

273Amnico/a /imosa 19 0.1516

Hya/ella azteca 0.0302 Insecta


0.0021 15811

Caenis 0.0086 Diptera

Ceratopogonidae

0.0006 292

Probezzia 1 0.0014 Chironomidae

0.0001 14 38 0.16520.0115 546

Table 13. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #2, 9116/96 (see Figure 3 for site locations).

160

Lamoka Lake, Site 3 (vegetative) 9/16/96 TAXA g/sample IPlatyhelminthes


Planariidae

#/sample

0.0010 Annelida


Naididae

3

0.0002 Hirudinea

Rhynchobdedida

NA

Glossiphoniidae Helobdella stagnalis 3 0.0125

Mollusca Bivalvia




Gyraulus parvus 5 0.0047 Promentus exacuous 2 0.0009

Physidae Physa sayii 3 0. 0150




Crustacea Isopoda

Asellidae Caecidotea 7 0.0058


Gammarus 3 0.0206 Talitridae

Hyalella azteca 85 0.0452

1

Table 14. Summary of macrobenthic invertebrates collected from Lamoka Lake, Site #3, 9/16/96 (see Figure 3 for site locations).

161

TAXA #/sample g/sample Insecta

Odonata (Anisoptera) Corduliidae

Epitheca Odonata (Zygoptera)

Coenagrionidae Coenagrion or Enal/agma

Trichoptera Leptoceridae

Leptocerus Diptera

Ceratopogonidae Bezzia or Palpomyia

Chironomidae

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 TAXA #/sample g/sample IPlatyhelminthes




Naididae NA 0.0003 Hirudinea

RhynchobdelHda Glossiphoniidae

Helobdel/a stagnalis 1 0.0011 Mollusca


Planorbidae Gyraulus parvus 15 0.0160

Physidae Physa sayii 6 0.0145




Crustacea Amphipoda

Talitridae Hyalel/a azteca 3 0.0011




Coenagrion or Ena/lagma 7 0.0523 Diptera



163

Lamoka Lake, Site 5 (benthic) 9/16/96 TAXA #/sample g/sample #/m/l2 g/m/l2 IAnnellda


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


164

Lamoka Lake, Site 6 (vegetative) 9/16/96 TAXA #/sample g/sample IPlatynelmlnthes




Naididae NA 0.0002 Hirudinea

Rhynchobdeilida Glossiphoniidae

Helobdella fusca 1 0.0039 Mollusca

Bivalvia Veneroida

Sphaeriidae Sphaerium 4 0.0057 Pisidium 1 0.0021


Planorbidae Gyraulus parvus 5 0.0016 Gyraulus hirsutus 3 0.0091 Promentus exacuous 2 0.0005




Arachnida Crustacea

Isopoda Asellidae

Caecidotea 1 0.0004 Amphipoda

Talitridae Hyalella azteca 153 0.0665


165

TAXA #/sample g/sample Insecta


Paracloeodes Caenidae

Caenis Odonata (Anisoptera)

Corduliidae Epitheca


Coenagrion or Enallagma Trichoptera

Leptoceridae Oecetis Leptocerus

Hydroptilidae Oxythira


Bezzia or Palpomyia Chironomidae

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 TAXA Platyhelminthes


Planariidae Hirudinea


He/obdeJla stagnalis BatraeobdeJla

Mollusca Bivalvia


Sphaerium Gastropoda


Gyrau/us hirsutus Mesogastropoda

Hydrobiidae Amnieo/a /imosa


Acariformes Hydrodromidae

Hydrodroma Crustacea

Isopoda Asellidae

Caeeidotea Amphipoda

Talitridae Hya/e//a azteea


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

TAXA #/sample g/sample Odonata (Anisoptera)

Libellulidae Erythemis

Corduliidae Epitheca


Coenagrion or Ena//agma Hemiptera

Pleidae Parap/ea

Mesoveliidae Mesove/ia


Y/odes Leptocerus

Polycentropodidae Cemotina


Dasyhe/ea Bezzia or Pa/pomyia

Chironomidae

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 TAXA g/sample


Tricladida Planariidae

#/sample

0.0011 Annelida


9


Bivalvia Veneroida

Sphaeriidae Pisidium 2 0.0015



Hydrobiidae Amnico/a limosa 173 0.4403


Acariformes Arrenuridae

Arrenurus 1 0.0004 Crustacea


Hyalel/a azteea 336 0.0723 Insecta


Parae/oeodes 1 0.0005 Caenidae

Caenis 21 0.0025 Odonata (Anisoptera)

Corduliidae Epitheea 3 0.0265


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

TAXA #/sample g/sample Lepidoptera

Nepticulidae 0.00011 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


Dasyhe/ea 4 0.0003 Bezzia or Palpomyia 11 0.0004




170

Lamoka Lake,Site 9 (veQetative) 9/16/96 TAXA g/sample PlatYhelminthes


Planariidae

#/sample

0.0093 Annelida


Naididae

18

0.0003 Hirudinea

NA


Helobdella 2 0.0039 Batracobdella 1 0.0046

Mollusca Bivalvia




Gyraulus parvus 3 0.0075 Physidae

Physa sayii 7 0.0142 Mesogastropoda

Hydrobiidae Amnicola limosa 116 0.3011



Hyalella azteca 258 0.0958 Insecta


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

TAXA #/sample g/sample Odonata (Zygoptera)

Coenagrionidae Coenagrion or Enallagma 28 0.0998

Lestidae Lestes 1 0.0203

Lepidoptera Nepticulidae 1 0.0002


Oeeetis 2 0.0003 Ylades 3 0.0007 Leptacerus 369 0.1362

Polycentropodidae Cematina 4 0.0072

Coleoptera Curculionidae 1 0.0007


Dasyhelea 7 0.0012 Bezzia or Palpomyia 9 0.0005




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