Macrobenthic invertebrate survey of Waneta and

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
.
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ffi SAMPLING
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of
BoAT LAUNCH SITES
\I
EXTENT
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o
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PUBLIC
SITES
OF VEGETATION
STATION
ACCESS
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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.