MBSS Site Summary for: PTOB-002-S-2000

Site Photos

Field photo showing stream conditions at site PTOB-002-S-2000-01 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2000-02 (Opens in a new window)

Located on HOGHOLE RUN in the Port Tobacco River watershed, 8-digit code: 02140109.
This stream was visited in the spring on 5/1/2000 and again in the summer on 6/21/2000.

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 - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,305 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 3.8 %
Agricultural Land Use 12.6 %
Forested Land Use 83.6 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 60 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 15 meters 		12/20 (Suboptimal)
Shading 80 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 19.5 ° C
Dissolved oxygen (DO) 5.7 mg/L
pH (lab) 6.46
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		69.6 µeq/L
Dissolved organic carbon (DOC) 3.4 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
Rosyside Dace 82
Creek Chub 71
Eastern Mudminnow 61
Blacknose Dace 58
White Sucker 27
Least Brook Lamprey 9
Fallfish 7
Tadpole Madtom 5
Tessellated Darter 5
Creek Chubsucker 3
American Eel 2
Bluegill 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
Cambaridae

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Simulium Black Fly 16
Ephemerella Sulphur Mayfly 13
Acentrella Tiny Blue-Winged Olive Mayflies 12
Leuctra  Rolled-Winged Stonefly 9
Oulimnius Riffle Beetle 7
Crangonyctidae Scud 6
Amphinemura Spring Stonefly 6
Chloroperlidae Green Stonefly 4
Cricotopus Non-Biting Midges 4
Eukiefferiella Non-Biting Midges 3
Dicranota Hairy-Eyed Cranefly 2
Cricotopus/Orthocladius Midge 2
Isoperla Stripetail Stonefly 2
Stempellina 2
Simuliidae Black Fly 2
Stenelmis Beetle 1
Perlidae Common Stonefly 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Wormaldia Fingernet Caddisfly 1
Corynoneura Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Acerpenna Tiny Blue-Winged Olive Mayflies 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.