MBSS Site Summary for: HO-P-018-106-97


Located on TRIDELPHIA RES UT3 in the Brighton Dam watershed, 8-digit code: 02131108.
This stream was visited in the spring on 3/13/1997 and again in the summer on 6/19/1997.

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 Poor - 2.3 / 5.0
Benthic IBI Poor - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 405 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 0.1 %
Agricultural Land Use 76.9 %
Forested Land Use 21.9 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = meters 		9/20 (Marginal)
Riffle Quality 13/20 (Suboptimal)
Shading 95 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 16.7 ° C
Dissolved oxygen (DO) 9.8 mg/L
pH (lab) 6.95
Conductivity 202 µmho/cm
Alkalinity
(acid neutralizing capacity) 		553 µeq/L
Dissolved organic carbon (DOC) 4.9 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Brown Bullhead 32
Blacknose Dace 12
Yellow Bullhead 9
Tessellated Darter 2
Central Stoneroller 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Red Salamander
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 30
Simulium Black Fly 28
Eukiefferiella Non-Biting Midges 22
Tubificidae Aquatic Worm 20
Polypedilum Non-Biting Midges 17
Hydropsyche Net-Spinning Caddisfly 8
Naididae Aquatic Worm 6
Conchapelopia Non-Biting Midges 6
Cricotopus/Orthocladius Midge 4
Cheumatopsyche Net-Spinning Caddisfly 3
Tanytarsus Non-Biting Midges 3
Thienemanniella Non-Biting Midges 2
Cricotopus Non-Biting Midges 2
Leptophlebia Pronggilled Mayfly 1
Brillia Non-Biting Midges 1
Enchytraeidae Aquatic Worm 1
Baetis Blue-Winged Olive Mayfly 1
Antocha Crane Fly 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.