MBSS Site Summary for: PTOB-002-S-2014

Site Photos

Field photo showing stream conditions at site PTOB-002-S-2014-MidpointDownstream (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2014-MidpointUpstream (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 3/31/2014 and again in the summer on 6/23/2014.

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 Fair - 3.7 / 5.0
Benthic IBI Good - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 2,329 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 6.3 %
Agricultural Land Use 13.7 %
Forested Land Use 75.5 %


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 14/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 51 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 34 meters 		12/20 (Suboptimal)
Shading 45 %
Embeddedness 35 %


Stream Water Quality:
pH (lab) 6.24
Alkalinity
(acid neutralizing capacity) 		57.99 µeq/L
Dissolved organic carbon (DOC) 6.9606 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 9 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 84
Rosyside Dace 41
Eastern Mudminnow 32
Creek Chub 22
Creek Chubsucker 9
Tessellated Darter 9
Green Sunfish 3
American Eel 1
Least Brook Lamprey 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Spring Peeper
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus bartonii bartonii
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 42
Prosimulium Black Fly 34
Ephemerella Sulphur Mayfly 7
Limnephilidae Northern Casemaker Caddisfly 5
Neophylax Caddisfly 4
Leuctra  Rolled-Winged Stonefly 3
Strophopteryx Early Brown Stonefly 3
Psilotreta Mortarjoint Casemaker Caddisfly 3
Orthocladius Non-Biting Midges 2
Simulium Black Fly 2
Ameletus Combmouthed Minnow Mayfly 1
Crangonyx Amphipod 1
Clinocera Aquatic Dance Fly 1
Bezzia Biting Midge 1
Parametriocnemus Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Lumbriculidae Worm 1
Nemouridae Nemourid Stonefly 1
Caecidotea Isopod 1
Hydrobaenus Midge 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.