MBSS Site Summary for: CH-S-288-101-95


Located on ZEKIAH SWAMP RUN UT2 in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/1/1995 and again in the summer on 5/26/1995.

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 - 5.0 / 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 720 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 5.9 %
Agricultural Land Use 45.4 %
Forested Land Use 47.1 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		6/20 (Marginal)
Riffle Quality 8/20 (Marginal)
Shading 95 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 17.5 ° C
Dissolved oxygen (DO) 7.9 mg/L
pH (lab) 6.47
Conductivity 74 µmho/cm
Alkalinity
(acid neutralizing capacity) 		91.1 µeq/L
Dissolved organic carbon (DOC) 3 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Least Brook Lamprey 62
Fallfish 42
Eastern Mudminnow 41
Bluegill 19
Blacknose Dace 15
American Eel 10
Creek Chubsucker 9
Pumpkinseed 9
Rosyside Dace 8
Largemouth Bass 1
Redfin Pickerel 1
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander
Northern Green Frog
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
Sweltsa Stonefly 39
Acerpenna Tiny Blue-Winged Olive Mayflies 21
Neophylax Caddisfly 14
Micropsectra Non-Biting Midges 12
Diamesinae Non-Biting Midges 9
Parametriocnemus Non-Biting Midges 8
Ephemerella Sulphur Mayfly 7
Thienemannimyia Non-Biting Midges 6
Zavrelimyia Non-Biting Midges 6
Stegopterna Black Fly 4
Dicranota Hairy-Eyed Cranefly 3
Stictochironomus Non-Biting Midge 2
Cordulegaster Spiketail Dragonfly 2
Crangonyx Amphipod 2
Prosimulium Black Fly 1
Diploperla 1
Hexatoma Crane Fly 1
Stenonema Flatheaded Mayfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Thienemanniella Non-Biting Midges 1
Triaenodes Long-Horned Caddisfly 1
Diplectrona Net-Spinning Caddisfly 1
Psychomyia Trumpet-Net Caddisfly 1
Eccoptura Yellow Stone 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.