MBSS Site Summary for: CH-S-012-114-95


Located on ZEKIAH SWAMP RUN UT1 in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/10/1995 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 Fair - 3.7 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 322 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 4.5 %
Forested Land Use 95.2 %


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

Physical Stream Habitat
Instream Habitat 11/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters 		9/20 (Marginal)
Riffle Quality 11/20 (Suboptimal)
Shading 85 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 17.7 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 6.2
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		77 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 99
Least Brook Lamprey 37
Pirate Perch 8
American Eel 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Northern Red Salamander
Northern Two-Lined Salamander
Northern Watersnake
Pickerel Frog
Wood 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
Chloroperlidae Green Stonefly 17
Ephemerella Sulphur Mayfly 11
Acerpenna Tiny Blue-Winged Olive Mayflies 8
Optioservus Riffle Beetle 8
Stegopterna Black Fly 6
Anchytarsus Beetle 4
Tipula Crane Fly 3
Heleniella European Non-Biting Midge 3
Diplectrona Net-Spinning Caddisfly 3
Micropsectra Non-Biting Midges 3
Orthocladius Non-Biting Midges 2
Dixa 2
Orthocladiinae Midge 2
Psilotreta Mortarjoint Casemaker Caddisfly 1
Nemouridae Nemourid Stonefly 1
Parachaetocladius Non-Biting Midge 1
Eukiefferiella Non-Biting Midges 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Clioperla Green-Winged Stonefly 1
Tipulidae Cranefly 1
Neophylax Caddisfly 1
Stenelmis Beetle 1
Ceratopogon Biting Midge 1
Probezzia Biting Midges 1
Prosimulium Black Fly 1
Parametriocnemus Non-Biting Midges 1
Trissopelopia Non-Biting Midges 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.