MBSS Site Summary for: PTOB-111-R-2008

Site Photos

Field photo showing stream conditions at site PTOB-111-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site PTOB-111-R-2008-2 (Opens in a new window)

Located on JENNIE RUN in the Port Tobacco River watershed, 8-digit code: 02140109.
This stream was visited in the spring on 3/11/2008 and again in the summer on 6/10/2008.

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 - 4.3 / 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 1,907 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 20.1 %
Agricultural Land Use 22.6 %
Forested Land Use 55.3 %


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 14/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 51 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 32 meters 		15/20 (Suboptimal)
Shading 60 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 19.8 ° C
Dissolved oxygen (DO) 8.7 mg/L
pH (lab) 6.88
Conductivity 183 µmho/cm
Alkalinity
(acid neutralizing capacity) 		259.1 µeq/L
Dissolved organic carbon (DOC) 1.5764 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 211
Rosyside Dace 87
Creek Chub 33
Least Brook Lamprey 27
Fallfish 15
White Sucker 14
Tessellated Darter 12
Sea Lamprey 10
Bluegill 5
American Eel 4
Creek Chubsucker 2
Eastern Mosquitofish 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
Cambarus bartonii bartonii
Cambarus diogenes
Orconectes limosus

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Eukiefferiella Non-Biting Midges 18
Amphinemura Spring Stonefly 15
Isoperla Stripetail Stonefly 11
Orthocladius Non-Biting Midges 11
Oulimnius Riffle Beetle 9
Ephemerella Sulphur Mayfly 8
Hydrobaenus Midge 5
Diamesa Bloodworm 3
Cheumatopsyche Net-Spinning Caddisfly 3
Sympotthastia Non-Biting Midges 3
Tanytarsini Non-Biting Midges 2
Hydropsyche Net-Spinning Caddisfly 2
Bezzia Biting Midge 2
Ameletus Combmouthed Minnow Mayfly 2
Chloroperlidae Green Stonefly 2
Prostoia Spring Stonefly 2
Acerpenna Tiny Blue-Winged Olive Mayflies 1
Hemerodromia Tiny Fly 1
Psephenus Water Penny 1
Nemouridae Nemourid Stonefly 1
Lype Net Tube Caddisfly 1
Ceratopogonidae Biting Midge 1
Neophylax Caddisfly 1
Diamesinae Non-Biting Midges 1
Leuctridae Rolledwinged Stonefly 1
Boyeria Spotted Darner Dragonfly 1
Limnephilidae Northern Casemaker Caddisfly 1
Optioservus 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.