MBSS Site Summary for: WEST-110-X-2017

Site Photos

Field photo showing stream conditions at site WEST-110-X-2017-MidpointLookingDownstream (Opens in a new window) Field photo showing stream conditions at site WEST-110-X-2017-MidpointLookingUpstream (Opens in a new window)

Located on Mill Swamp Run in the West River watershed, 8-digit code: 02131004.
This stream was visited in the spring on 3/13/2017 and again in the summer on 7/18/2017.

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 - 2.0 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,596 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 8.8 %
Agricultural Land Use 27.9 %
Forested Land Use 61.2 %


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

Physical Stream Habitat
Instream Habitat 1/20 (Poor)
Epifaunal Substrate 1/20 (Poor)
Velocity/Depth Diversity 2/20 (Poor)
Pool Quality
Pool Extent = 63 meters 		3/20 (Poor)
Riffle Quality
Riffle Extent = 12 meters 		1/20 (Poor)
Shading 85 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.
Several measures of instream habitat were considered 'Poor' at this location.


Stream Water Quality:
No water quality measurements available for this site.

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 7 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Golden Shiner 10
Bluegill 5
Eastern Mosquitofish 3
Banded Killifish 1
Green Sunfish 1
Mummichog 1
Sunfish (Unknown) 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
Procambarus clarkii

Exotic Plants:
Garlic Mustard
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
ORTHOCLADIUS Non-Biting Midges 20
ZAVRELIMYIA Non-Biting Midges 19
HYDROBAENUS Midge 13
TUBIFICIDAE Aquatic Worm 8
GAMMARUS Amphipod 7
RHEOCRICOTOPUS Non-Biting Midges 7
LEPTOPHLEBIA Pronggilled Mayfly 6
TANYTARSUS Non-Biting Midges 4
CERATOPOGONIDAE Biting Midge 3
CAMBARIDAE Crayfish 2
TANYPODINAE Non-Biting Midges 2
ORTHOCLADIINAE Midge 2
NEMOURIDAE Nemourid Stonefly 1
CRYPTOCHIRONOMUS Non-Biting Midges 1
MICROTENDIPES Non-Biting Midges 1
PARAMETRIOCNEMUS Non-Biting Midges 1
CHRYSOPS Deerfly 1
SYNURELLA Amphipod 1
PROSIMULIUM Black Fly 1
TIPULIDAE Cranefly 1
FERRISSIA Small Air-Breathing Freshwater Limpets 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.