MBSS Site Summary for: PTOB-109-R-2003

Site Photos

Field photo showing stream conditions at site PTOB-109-R-2003-715 (Opens in a new window) Field photo showing stream conditions at site PTOB-109-R-2003-716 (Opens in a new window)

Located on HOGHOLE RUN UT1 in the Port Tobacco River watershed, 8-digit code: 02140109.
This stream was visited in the spring on 3/18/2003 and again in the summer on 6/24/2003.

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 Poor - 2.0 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 581 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 1 %
Agricultural Land Use 27 %
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 13/20 (Suboptimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 42 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 33 meters 		13/20 (Suboptimal)
Shading 90 %
Embeddedness 20 %


Stream Water Quality:
Water temperature 18 ° C
Dissolved oxygen (DO) 8.9 mg/L
pH (lab) 6.32
Conductivity 43 µmho/cm
Alkalinity
(acid neutralizing capacity) 		39 µeq/L
Dissolved organic carbon (DOC) 2.7 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 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 11
Eastern Mudminnow 7
Rosyside Dace 3
Creek Chub 1
Largemouth Bass 1
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
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Chloroperlidae Green Stonefly 22
Leuctra  Rolled-Winged Stonefly 5
Orthocladius Non-Biting Midges 5
Allocapnia Small Winter Stonefly 4
Caecidotea Isopod 3
Zavrelimyia Non-Biting Midges 3
Nigronia Megaloptera (Dark Fishfly) 2
Prostoia Spring Stonefly 2
Crangonyx Amphipod 2
Calopteryx Damselfly 1
Clioperla Green-Winged Stonefly 1
Tanytarsini Non-Biting Midges 1
Thienemannimyia group Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Capniidae Small Winter Stonefly 1
Amphinemura Spring Stonefly 1
Dytiscidae Predaceous Diving Beetle 1
Oulimnius Riffle Beetle 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.