MBSS Site Summary for: PTOB-002-S-2012

Site Photos

Field photo showing stream conditions at site PTOB-002-S-2012-1 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2012-2 (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 3/19/2012 and again in the summer on 6/4/2012.

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 - 4.4 / 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 3.4 %
Agricultural Land Use 25.5 %
Forested Land Use 70 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 66 meters 		16/20 (Optimal)
Riffle Quality
Riffle Extent = 34 meters 		11/20 (Suboptimal)
Shading 80 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
pH (lab) 6.47
Alkalinity
(acid neutralizing capacity) 		105.7 µeq/L
Dissolved organic carbon (DOC) 2.4439 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 8 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 20
Rosyside Dace 17
Creek Chub 9
Blacknose Dace 8
Creek Chubsucker 4
American Eel 1
Pumpkinseed 1
Tessellated Darter 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
Cambarus bartonii bartonii
Orconectes limosus

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

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 31
Simulium Black Fly 10
Orthocladius Non-Biting Midges 10
Caecidotea Isopod 7
Acerpenna Tiny Blue-Winged Olive Mayflies 7
Rheocricotopus Non-Biting Midges 7
Polypedilum Non-Biting Midges 6
Isoperla Stripetail Stonefly 5
Eurylophella Mayfly 4
Hydrobaenus Midge 2
Cheumatopsyche Net-Spinning Caddisfly 2
Eukiefferiella Non-Biting Midges 2
Tipula Crane Fly 2
Neoporus 2
Leuctra  Rolled-Winged Stonefly 2
Paratanytarsus Non-Biting Midges 2
Trissopelopia Non-Biting Midges 1
Ephemerella Sulphur Mayfly 1
Crangonyx Amphipod 1
SIMULIIDAE Black Fly 1
Haploperla Green Stonefly 1
Neophylax Caddisfly 1
Gomphus Clubtail Dragonfly 1
Micropsectra Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Diplectrona Net-Spinning 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.