MBSS Site Summary for: AL-A-199-122-95


Located on TERRAPIN RUN UT1 in the Fifteen Mile Creek watershed, 8-digit code: 02140511.
This stream was visited in the spring on 3/22/1995 and again in the summer on 7/21/1995.

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 - 1.0 / 5.0
Benthic IBI Good - 4.5 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 207 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 0.7 %
Forested Land Use 99.5 %


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 5/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		6/20 (Marginal)
Riffle Quality 8/20 (Marginal)
Shading 75 %
Embeddedness 70 %
The embeddedness, a measure of silt on the stream bottom, was 70%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 16 ° C
Dissolved oxygen (DO) 8.4 mg/L
pH (lab) 6.6
Conductivity 82 µmho/cm
Alkalinity
(acid neutralizing capacity) 		74.6 µeq/L
Dissolved organic carbon (DOC) 2 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Dusky Salamander

Crayfish:
Cambaridae

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Leuctra  Rolled-Winged Stonefly 20
Stegopterna Black Fly 19
Ameletus Combmouthed Minnow Mayfly 15
Paraleptophlebia Blue Quill Mayfly 14
Ephemerella Sulphur Mayfly 11
Limnephilidae Northern Casemaker Caddisfly 8
Perlodidae Perlodid Stonefly 7
Nemouridae Nemourid Stonefly 7
Epeorus Mayfly 6
Oulimnius Riffle Beetle 6
Prosimulium Black Fly 5
Chloroperlidae Green Stonefly 4
Micropsectra Non-Biting Midges 4
Diplectrona Net-Spinning Caddisfly 3
Dicranota Hairy-Eyed Cranefly 3
Pseudolimnophila Crane Fly 3
Rhyacophila Free-Living Caddisfly 3
Ectopria Water Penny Beetle 3
Hexatoma Crane Fly 2
Neophylax Caddisfly 2
Tabanus Biting Horsefly 1
Caecidotea Isopod 1
Eurylophella Mayfly 1
Nigronia Megaloptera (Dark Fishfly) 1
Parametriocnemus Non-Biting Midges 1
Isoperla Stripetail 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.