MBSS Site Summary for: AL-A-524-211-95


Located on MUDLICK HOLLOW 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 6/19/1995.

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 - 4.3 / 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 1,929 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.3 %
Agricultural Land Use 9 %
Forested Land Use 87.8 %


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

Physical Stream Habitat
Instream Habitat 4/20 (Poor)
Epifaunal Substrate 5/20 (Poor)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = meters 		6/20 (Marginal)
Riffle Quality 6/20 (Marginal)
Shading 97 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 16 ° C
Dissolved oxygen (DO) 7.6 mg/L
pH (lab) 7.2
Conductivity 215 µmho/cm
Alkalinity
(acid neutralizing capacity) 		240.6 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 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Potomac Sculpin 92
Blacknose Dace 82
Creek Chub 9
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
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
Micropsectra Non-Biting Midges 32
Cinygmula Dark Red Quill Mayfly 19
Prosimulium Black Fly 10
Neophylax Caddisfly 7
Perlodidae Perlodid Stonefly 6
Acroneuria Golden Stoneflies 5
Amphinemura Spring Stonefly 4
Epeorus Mayfly 4
Nemouridae Nemourid Stonefly 4
Oemopteryx Stonefly 3
Ephemerella Sulphur Mayfly 3
Ameletus Combmouthed Minnow Mayfly 3
Leuctra  Rolled-Winged Stonefly 2
Lepidostoma Little Brown Sedge Caddisfly 2
Parametriocnemus Non-Biting Midges 2
Microtendipes Non-Biting Midges 1
Dicranota Hairy-Eyed Cranefly 1
Hexatoma Crane Fly 1
Polycentropus Tube Maker Caddisfly 1
Psephenus Water Penny 1
Diplectrona Net-Spinning Caddisfly 1
Conchapelopia Non-Biting Midges 1
Stenacron Mayfly 1
Dolophilodes Medium Evening Sedge 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.