MBSS Site Summary for: AL-A-027-209-95


Located on TERRAPIN RUN in the Fifteen Mile Creek watershed, 8-digit code: 02140511.
This stream was visited in the spring on 3/23/1995 and again in the summer on 6/20/1995.

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 Poor - 2.7 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,428 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 2.6 %
Forested Land Use 94.1 %


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 11/20 (Suboptimal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = meters
14/20 (Suboptimal)
Riffle Quality 7/20 (Marginal)
Shading 97 %
Embeddedness 0 %


Stream Water Quality:

Water temperature 17 ° C
Dissolved oxygen (DO) 7.6 mg/L
pH (lab) 6.98
Conductivity 117 µmho/cm
Alkalinity
(acid neutralizing capacity)
175.5 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 299
Fantail Darter 9
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:

Northern Dusky Salamander
Northern Two-Lined Salamander

Crayfish:

Cambaridae

Exotic Plants:

No exotic plants noted.
 

Benthic Macroinvertebrates:

Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Neophylax Caddisfly 26
Micropsectra Non-Biting Midges 22
Sweltsa Stonefly 21
Perlodidae Perlodid Stonefly 15
Heptageniidae Flathead Mayfly 13
Epeorus Mayfly 12
Ostrocerca Stonefly 12
Prosimulium Black Fly 9
Ameletus Combmouthed Minnow Mayfly 8
Oemopteryx Stonefly 8
Ephemerella Sulphur Mayfly 5
Leuctridae Rolledwinged Stonefly 3
Conchapelopia Non-Biting Midges 3
Hexatoma Crane Fly 2
Stegopterna Black Fly 1
Rhyacophila Free-Living Caddisfly 1
Amphinemura Spring Stonefly 1
Ceratopogon Biting Midge 1
Oulimnius Riffle Beetle 1
Parametriocnemus Non-Biting Midges 1
Lumbriculidae Worm 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.