BMI Event at Taughannock Creek - Rte 96 on 10/07/2017
Description about 1,000 ft downstream of Rte 96 Rationale
Details
Latitude, Longitude
42.529215, -76.633034
Miles from stream mouth
Date of sample
10-07-2017
Squares Replicate 1
12 / 12
Squares Replicate 2
4 / 12
Conducted Sampling
Bill Coon, Diane Chu, 4-H20 group
Conducted Analysis
Diane Chu, Aiden Alm, Tony DelPlato, Iris Benson, Carol Hardy, Adrianna Hirtler
Impact Assessment Based on NYSDEC model and 100 organism count
Biological Assessment Profile 7.8
Total Family Richness 13.5
Family EPT Richness 6.5
Family Biotic Index 3.915
Percent Model Affinity 72
Percent Contribution of Dominant Family 40% Heptageniidae
Sample Analysis Preserved
Organism Count and Metrics Calculations
R1 R2 Avg
Organism Density = Total Number of Organisms in Sample 668 501 584
Number of organisms counted 668 167 417

Actual Count

R1 R2 Avg
Organism Density = Total Number of Organisms in Sample 668 501 584
EPT Richness 9.0 6.0 7.5
Total Family Richness 22.0 14.0 18.0
Biotic Index 3.84 3.91 3.875
Dominant Family Heptageniidae Heptageniidae
Percent Contribution of Dominant Family 46 43 44
Percent Model Affinity 69 75 72
Percent Similarity Between Replicates 88 88 88
Biological Assessment Profile
Replicate 1 Replicate 2
Families in Major Groups T D T x D %C D T x D %C L
Ephemeroptera
Baetidae 6 2 12 0.3
Baetiscidae 4
Caenidae 6 2 12 0.3
Ephemerellidae 2 8 16 1.2 2 4 1.2 1
Heptageniidae 3 312 936 46.7 73 219 43.7 44
Isonychiidae 2 1 2 0.1
Ephemeridae 4
Leptophlebliidae 4 2 8 0.3
Metretopodidae 2
Polymitarcyidae 2
Potomanthidae 4
Siphlonuridae* 4
Leptohyphidae (Tricorythldae) 4
Ameletidae 0
Sub-total 327 49 75 45
Plecoptera
Perlidae 3 25 75 3.7 11 33 6.6 4
Capniidae 3
Chloroperlidae 0
Leuctridae 0
Nemouridae 2
Peltoperlidae 0
Perlodidae 2
Pteronarcyidae 0
Taeniopterygidae 2 2 4 1.2
Undetermined Plecoptera 2
Sub-total 25 4 13 8
Megaloptera
Corydalidae 4 1 4 0.6
Sialidae 4 2 8 0.3 1 4 0.6 0
Sub-total 2 0 2 1
Lepidoptera
Pyralidae 5
Sub-total 0 0 0 0
Trichoptera
Hydropsychidae 5 128 640 19.2 30 150 18.0 18
Hydroptilidae 6
Odontoceridae 0
Philopotamidae 3 34 102 5.1 7 21 4.2 4
Polycentropodidae 6
Rhyacophilidae 1
Undetermined Trichoptera 3
Brachycentridae 2
Glossosomatidae 1
Helicopsychidae 3
Lepidostomatidae 1
Leptoceridae 4
Limnephilidae 4
Molannidae 6
Phryganeidae 4
Psychomyiidae 2
Sericostomatidae 3
Uenoidae 3
Sub-total 162 24 37 22
Diptera
Athericidae 4
Ceratopgonidae 6 2 12 0.3
Tipulidae 4 4 16 0.6
Empididae 6 2 12 0.3
Undetermined Diptera 6
Blephariceridae 0 1 0 0.1
Simuliidae 5
Tabanidae 5 2 10 0.3 1 5 0.6 0
Stratiomyidae 7
Sub-total 11 2 1 1
Isopoda
Asellidae 8
Sub-total 0 0 0 0
Coleoptera
Elmidae 5 84 420 12.6 19 95 11.4 11
Psephenidae 4 34 136 5.1 7 28 4.2 4
Dryopidae 5
Gyrinidae 4
Haliplidae 5
Undetermined Coleoptera 5
Dytiscidae 5
Sub-total 118 18 26 16
Odonata
Coenagrionidae 8 3 24 0.4 4 32 2.4 0
Aeshnidae 5
Calopterygidae 6
Cordulegastridae 3
Corduliidae 2
Gomphidae 4
Lestidae 9
Libellulidae 2
Macromiidae 2
Sub-total 3 0 4 2
Amphipoda
Crangonyctidae 6
Gammaridae 6
Talitridae 8
Sub-total 0 0 0 0
Decapoda
Cambaridae or Astacidae 6 2 12 0.3 1 6 0.6 0
Sub-total 2 0 1 1
Other
Turbellaria 6
Nemertea 8 1 8 0.1
Hirudinea 7
Gastropoda 7
Pelecypoda 6 1 6 0.1
Hydrachnidae 6
Nematoda 5
Sub-total 2 0 0 0
Oligochaeta
Oligochaeta 9
Sub-total 0 0 0 0
Chironomidae
Chironomidae 6 16 96 2.4 8 48 4.8 2
Sub-total 16 2 8 5
Totals 668 100 167 100 88.0

100 Count is obtained by backing actual count down to 100 using statistics so that metrics calculations are consistent with NYSDEC model, which is based on counting 100 organisms in a sample

R1 R2 Avg
Organism Density = Total Number of Organisms in Sample
EPT Richness 7.0 6.0 6.5
Total Family Richness 14.0 13.0 13.5
Biotic Index 3.92 3.91 3.915
Dominant Family Heptageniidae Heptageniidae
Percent Contribution of Dominant Family 40 40 40
Percent Model Affinity 70 75 72
Percent Similarity Between Replicates 84 84 84
Biological Assessment Profile 7.9 7.7 7.8
Replicate 1 Replicate 2
Families in Major Groups T D T x D %C D T x D %C L
Ephemeroptera
Baetidae 6
Baetiscidae 4
Ephemerellidae 2 1 2 1.0 2 4 2.0 1.0
Heptageniidae 3 40 120 40.0 40 120 40.0 40.0
Isonychiidae 2
Ephemeridae 4
Leptophlebliidae 4 1 4 1.0
Metretopodidae 2
Polymitarcyidae 2
Potomanthidae 4
Siphlonuridae* 4
Ameletidae 0
Caenidae 6 1 6 1.0
Leptohyphidae (Tricorythldae) 4
Sub-total 43 42
Plecoptera
Perlidae 3 4 12 4.0 7 21 7.0 4.0
Capniidae 3
Chloroperlidae 0
Leuctridae 0
Nemouridae 2
Peltoperlidae 0
Perlodidae 2
Pteronarcyidae 0
Taeniopterygidae 2 1 2 1.0
Undetermined Plecoptera 2
Sub-total 4 8
Megaloptera
Corydalidae 4 1 4 1.0
Sialidae 4 1 4 1.0
Sub-total 0 2
Lepidoptera
Pyralidae 5
Sub-total 0 0
Trichoptera
Hydropsychidae 5 28 140 28.0 19 95 19.0 19.0
Hydroptilidae 6
Odontoceridae 0
Philopotamidae 3 7 21 7.0 5 15 5.0 5.0
Polycentropodidae 6
Rhyacophilidae 1
Brachycentridae 2
Glossosomatidae 1
Helicopsychidae 3
Lepidostomatidae 1
Leptoceridae 4
Limnephilidae 4
Molannidae 6
Phryganeidae 4
Psychomyiidae 2
Sericostomatidae 3
Uenoidae 3
Undetermined Trichoptera 3
Sub-total 35 24
Diptera
Athericidae 4
Ceratopgonidae 6
Tipulidae 4 1 4 1.0
Empididae 6
Blephariceridae 0 1 0 1.0
Simuliidae 5
Tabanidae 5
Stratiomyidae 7
Undetermined Diptera 6
Sub-total 2 0
Isopoda
Asellidae 8
Sub-total 0 0
Coleoptera
Elmidae 5 9 45 9.0 12 60 12.0 9.0
Psephenidae 4 3 12 3.0 4 16 4.0 3.0
Dryopidae 5
Gyrinidae 4
Haliplidae 5
Undetermined Coleoptera 5
Dytiscidae 5
Sub-total 12 16
Odonata
Coenagrionidae 8 1 8 1.0 1 8 1.0 1.0
Aeshnidae 5
Calopterygidae 6
Cordulegastridae 3
Corduliidae 2
Gomphidae 4
Lestidae 9
Libellulidae 2
Macromiidae 2
Sub-total 1 1
Amphipoda
Crangonyctidae 6
Gammaridae 6
Talitridae 8
Sub-total 0 0
Decapoda
Cambaridae or Astacidae 6 1 6 1.0
Sub-total 0 1
Other
Turbellaria 6
Nemertea 8
Hirudinea 7
Gastropoda 7
Pelecypoda 6 1 6 1.0
Nematoda 5
Hydrachnidae 6
Sub-total 1 0
Oligochaeta
Oligochaeta 9
Sub-total 0 0
Chironomidae
Chironomidae 6 2 12 2.0 6 36 6.0 2.0
Sub-total 2 6
Totals 100 100 100 100
Physical Survey
Physical Characteristics of Stream
Stream Size
Gradient
Water Level
Average stream width at sampling location 7.5 m
Upstream Dam within 1 km?
Recent Precipitation
Precipitation day of sampling
Precipitation previous two days
Water Appearance/Odor
Turbidity substantially greater than natural conditions?
Oily film, grease globules, or unusual odor or color present?
Algae or Weed Growth: Substantially greater than natural conditions?
Surrounding Land Use
Forest Cover
Agriculture
Human Habitation
Commercial/Industrial
Temperature
Air temperature, in degrees Centigrade 26
Water temperature, in degrees Centigrade 18
Habitat Assessment Factors
Assessment FactorExcellentGoodFairPoor
Riffle SizeWell-developed riffle, as wide as stream & as long as 2x stream widthRiffle as wide as stream but riffle length less than 2x stream widthRiffle not as wide as stream and length less than 2x stream widthRiffles or run virtually non-existent
Substrate size (at BMI collection site)Cobble predominates; boulders, gravel commonCobble less abundant; boulders and gravel commonGravel, boulders or bedrock prevalent; some cobbleLarge boulders and bedrock or sand & silt prevalent; cobble lacking
Shelter for fishSnags, submerged logs, undercut banks, or other stable habitat are found in over 50% of the siteSnags, submerged logs, undercut banks, or other stable habitat are found in 30-50% of the siteSnags, submerged logs, undercut banks, or other stable habitat are found in 10-30% of the siteSnags, submerged logs, undercut banks, or other stable habitat are found in less than 10% of the site
Embeddedness (at BMI collection site)Rocks in stream <25% embedded; very little sand, silt, or mudRocks 25-50% embedded; can easily turn over rocksRocks 50-75% embedded and firmly stuck in sedimentsRocks >75% embedded; bottom mostly sand, silt, or mud
Flow pattern (deep is > 2 ft)All 4 patterns present: slow/deep, fast/shallow, fast/deep, slow/shallowOnly 3 of 4 flow patterns presentOnly 2 of 4 flow patterns presentDominated by 1 flow pattern
Channel AlterationStream straightening, dredging, artificial embankments, dams or bridge abutments absent or minimal; stream with meandering patternSome stream straightening, dredging, artificial embankments or dams present, usually near bridge abutments; no recent channel alterationArtificial embankments present to some extent on both banks; and 40-80% of stream site straightened, dredged, or otherwise alteredBanks shored with gabion or cement; over 80% of the stream site straightened and disrupted
Stream bank cover and stability*Banks stable; no evidence of erosion; bank covered by vegetation or rockModerately stable; small areas of erosion; most of bank covered by vegetation or rockLargely unstable; almost half of bank has areas of erosion or is not covered by vegetation or rockUnstable, eroded; less than half of bank covered by egetation or rock, or rock slumping into creek
Disruption of riparian bank coverage* (land bordering stream bank)Mature trees and vegetation; most growing naturally; no disturbance by forestry, grazing, or mowingTrees, woody plants, soft green plants dominate; some disruption but not affecting full plant growth potentialObvious disruption; patches of bare soil, cultivated fields or closely cropped vegetation are the normNot much natural vegetation left or it has been removed to 3” in height
Width of riparian vegetation zone*More than 35 meters wide; human activities have not impacted zoneZone 12-35 yards wide; marginal impact from human activitiesZone 6-12 yards wide; impact from human activities evidentZone less than 6 yards wide; lots of nearby human activities
LitterNo litter (metal or plastic)Very little litter; accidentally droppedLitter fairly common; purposely droppedLots of litter present; obviously dumped

* Where the two banks were very different, the worst side was assessed.

Stream Bottom Survey
Silt/clay/mud
Sand 2
Gravel 38
Cobbles 58
Boulders 2
Bedrock
Predominant Cobble Embededness

0-25%