MBSS Site Summary for: HO-P-143-109-97


Located on TRIDELPHIA RES UT2 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 - 2.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 898 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 %
Agricultural Land Use 71.7 %
Forested Land Use 28.2 %


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 16/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		12/20 (Suboptimal)
Riffle Quality 15/20 (Suboptimal)
Shading 80 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 17.8 ° C
Dissolved oxygen (DO) 10.5 mg/L
pH (lab) 7.4
Conductivity 204 µmho/cm
Alkalinity
(acid neutralizing capacity) 		648.7 µeq/L
Dissolved organic carbon (DOC) 1.1 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 70
Blacknose Dace 42
Rosyside Dace 13
Smallmouth Bass 7
White Sucker 7
Creek Chub 5
Brown Bullhead 2
Green Sunfish 2
Largemouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Eukiefferiella Non-Biting Midges 32
Orthocladiinae A Non-Biting Midges 29
Parametriocnemus Non-Biting Midges 11
Cricotopus/Orthocladius Midge 10
Clinocera Aquatic Dance Fly 6
Cricotopus Non-Biting Midges 5
Orthocladius Non-Biting Midges 5
Micropsectra Non-Biting Midges 5
Sympotthastia Non-Biting Midges 4
Polypedilum Non-Biting Midges 2
Baetidae Small Minnow Mayfly 2
Ephemerella Sulphur Mayfly 2
Simulium Black Fly 2
Diamesa Bloodworm 1
Antocha Crane Fly 1
Glossosoma Little Black Caddisfly 1
Serratella Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Conchapelopia Non-Biting Midges 1
Corynoneura Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Cryptochironomus Non-Biting Midges 1
Tubificidae Aquatic Worm 1
Perlodidae Perlodid Stonefly 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.