MBSS Site Summary for: PTOB-002-S-2002

Site Photos

Field photo showing stream conditions at site PTOB-002-S-2002-407 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2002-408 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2002-409 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2002-570 (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 3/14/2002 and again in the summer on 7/1/2002.

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 - 4.0 / 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 2,253 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 2.9 %
Agricultural Land Use 25.8 %
Forested Land Use 70.1 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 2/20 (Poor)
Pool Quality
Pool Extent = 50 meters 		9/20 (Marginal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 96 %
Embeddedness 21 %


Stream Water Quality:
Water temperature 18.3 ° C
Dissolved oxygen (DO) 1.2 mg/L
Dissolved oxygen levels measured in the stream were very low (1.2 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 6.62
Conductivity 70 µmho/cm
Alkalinity
(acid neutralizing capacity) 		112.6 µeq/L
Dissolved organic carbon (DOC) 3.7 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 142
Creek Chub 121
Rosyside Dace 92
Blacknose Dace 13
Least Brook Lamprey 11
White Sucker 7
Creek Chubsucker 4
Fallfish 3
Pumpkinseed 2
Tadpole Madtom 1
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Acerpenna Tiny Blue-Winged Olive Mayflies 24
Chloroperlidae Green Stonefly 14
Stenonema Flatheaded Mayfly 8
Ephemerella Sulphur Mayfly 7
Parametriocnemus Non-Biting Midges 6
Prostoia Spring Stonefly 5
Orthocladius Non-Biting Midges 5
Amphinemura Spring Stonefly 4
Clinocera Aquatic Dance Fly 4
Simulium Black Fly 4
Prosimulium Black Fly 3
Eurylophella Mayfly 2
Orthocladiinae Midge 2
Conchapelopia Non-Biting Midges 2
Oulimnius Riffle Beetle 2
Isoperla Stripetail Stonefly 2
Oemopteryx Stonefly 1
Psephenus Water Penny 1
Clioperla Green-Winged Stonefly 1
Gordiidae Horsehair Worm 1
Tanytarsus Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Leptophlebiidae Pronggilled Mayfly 1
Stempellina 1
Leuctra  Rolled-Winged Stonefly 1
Neophylax Caddisfly 1
Gomphidae Clubtail Dragonfly 1
Antocha Crane Fly 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.