MBSS Site Summary for: PTOB-002-S-2001

Site Photos

Field photo showing stream conditions at site PTOB-002-S-2001-81 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-82 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-83 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-84 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-85 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-86 (Opens in a new window) Field photo showing stream conditions at site PTOB-002-S-2001-87 (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 3/12/2001 and again in the summer on 6/20/2001.

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 - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
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 18/20 (Optimal)
Epifaunal Substrate 18/20 (Optimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = 38 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 45 meters 		14/20 (Suboptimal)
Shading 90 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 23.7 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 6.59
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		71 µeq/L
Dissolved organic carbon (DOC) 1.5 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
Rosyside Dace 210
Blacknose Dace 101
Creek Chub 60
Tessellated Darter 19
White Sucker 17
Eastern Mudminnow 11
Least Brook Lamprey 10
American Eel 4
Tadpole Madtom 4
Creek Chubsucker 3
Fallfish 3
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
No crayfish noted.

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

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 60
Nemouridae Nemourid Stonefly 7
Oulimnius Riffle Beetle 7
Amphinemura Spring Stonefly 5
Ephemerella Sulphur Mayfly 3
Acerpenna Tiny Blue-Winged Olive Mayflies 3
Psephenus Water Penny 2
Simulium Black Fly 2
Stegopterna Black Fly 2
Chloroperlidae Green Stonefly 2
Cricotopus/Orthocladius Midge 2
Micropsectra Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 1
Rheosmittia Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Lumbriculidae Worm 1
Leuctridae Rolledwinged Stonefly 1
Boyeria Spotted Darner Dragonfly 1
Hydropsyche Net-Spinning Caddisfly 1
Eukiefferiella Non-Biting Midges 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.