MBSS Site Summary for: HO-P-063-203-97


Located on TRIDELPHIA RES UT1 in the Brighton Dam watershed, 8-digit code: 02131108.
This stream was visited in the spring on 3/25/1997 and again in the summer on 7/3/1997.

Index of Biotic Integrity (IBI) Results:

An Index of Biotic Integrity (IBI) is a scientific tool used to identify and classify stream health. An IBI associates anthropogenic influences on a stream or with biological condition in the stream, and is formulated using data developed from biosurveys.
Details on the development and application of MBSS IBIs are in this document.
Fish IBI Fair - 3.0 / 5.0
Benthic IBI Fair - 3.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,251 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 1.8 %
Agricultural Land Use 61.9 %
Forested Land Use 33.5 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		11/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 55 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 21 ° C
Dissolved oxygen (DO) 8.3 mg/L
pH (lab) 7.88
Conductivity 264 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1617 µeq/L
Dissolved organic carbon (DOC) 1.2 mg/L

Biological Stream Condition:

Surveys of the organisms living within a stream can give indications of stream health. Species richness, or the number of different species present, as well as indicator species (species whose presence, absence or abundance can serve as a measure of environmental conditions) are informative for stream health. 		Close-up of a mayfly indicator species.

Fish Survey Results:
The following 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Largemouth Bass 39
Yellow Bullhead 25
Tessellated Darter 13
Brown Bullhead 10
Smallmouth Bass 6
Creek Chub 5
Green Sunfish 5
Bluegill 2
Blacknose Dace 1
Longnose Dace 1
Mummichog 1
Redbreast Sunfish 1
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander
Northern Watersnake

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 18
Cricotopus/Orthocladius Midge 17
Parametriocnemus Non-Biting Midges 9
Amphinemura Spring Stonefly 7
Hemerodromia Tiny Fly 6
Sympotthastia Non-Biting Midges 5
Eukiefferiella Non-Biting Midges 5
Hydropsyche Net-Spinning Caddisfly 4
Orthocladius Non-Biting Midges 4
Serratella Mayfly 3
Orthocladiinae A Non-Biting Midges 3
Clinocera Aquatic Dance Fly 3
Antocha Crane Fly 3
Stenonema Flatheaded Mayfly 3
Cheumatopsyche Net-Spinning Caddisfly 2
Acerpenna Tiny Blue-Winged Olive Mayflies 2
Polycentropus Tube Maker Caddisfly 1
Psephenus Water Penny 1
Thienemanniella Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Glossosoma Little Black Caddisfly 1
Stygobromus Amphipod 1
Chelifera Aquatic Dance Fly 1
Naididae Aquatic Worm 1
Anchytarsus Beetle 1
Diamesa Bloodworm 1
Kick net sampling for macroinvertebrates.
Sampling with a kick net.

Information disclaimer: The information and data on this page is for guidance and general planning purposes only. It should not be used to make decisions on specific matters.