MBSS Site Summary for: DIVI-218-R-2001

Site Photos

Field photo showing stream conditions at site DIVI-218-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site DIVI-218-R-2001-2 (Opens in a new window)

Located on DIVIDING CR in the Dividing Creek watershed, 8-digit code: 02130204.
This stream was visited in the spring on 3/14/2001 and again in the summer on 7/25/2001.

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 Good - 4.3 / 5.0
Benthic IBI Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 10,890 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 29 %
Forested Land Use 68 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		18/20 (Optimal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 89 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 24.1 ° C
pH (lab) 6.16
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		86.8 µeq/L
Dissolved organic carbon (DOC) 9.5 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
American Eel 55
Pirate Perch 49
Golden Shiner 47
Creek Chubsucker 30
Eastern Mudminnow 15
Redfin Pickerel 14
Pumpkinseed 10
Yellow Bullhead 5
Tadpole Madtom 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Stegopterna Black Fly 13
Tanytarsus Non-Biting Midges 12
Leptophlebia Pronggilled Mayfly 12
Pycnopsyche Great Autumn Brown Sedge Caddisfly 10
Conchapelopia Non-Biting Midges 10
Nemouridae Nemourid Stonefly 5
Larsia Non-Biting Midge 4
Triaenodes Long-Horned Caddisfly 3
Caecidotea Isopod 3
Synurella Amphipod 3
Calopteryx Damselfly 2
Eurylophella Mayfly 2
Cricotopus/Orthocladius Midge 2
Unniella Non-Biting Midge 2
Microtendipes Non-Biting Midges 2
Ablabesmyia Non-Biting Midge 2
Hemerodromia Tiny Fly 2
Ancyronyx Spider Riffle Beetle 1
Boyeria Spotted Darner Dragonfly 1
Thienemanniella Non-Biting Midges 1
Pisidiidae Pill Clam 1
Zalutschia Non-Biting Midge 1
Lype Net Tube Caddisfly 1
Chrysops Deerfly 1
Heterotrissocladius European Non-Biting Midge 1
Ceratopogon Biting Midge 1
Oecetis Long-Horned Caddisfly 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.