MBSS Site Summary for: SWAN-105-R-2000

Site Photos

Field photo showing stream conditions at site SWAN-105-R-2000-9_10 (Opens in a new window) Field photo showing stream conditions at site SWAN-105-R-2000-9_11 (Opens in a new window)

Located on CARSINS RUN in the Swan Creek watershed, 8-digit code: 02130706.
This stream was visited in the spring on 3/20/2000 and again in the summer on 6/28/2000.

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 Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,961 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0.1 %
Agricultural Land Use 34.9 %
Forested Land Use 64.9 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 70 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 10 meters 		12/20 (Suboptimal)
Shading 75 %
Embeddedness 10 %


Stream Water Quality:
Water temperature 21 ° C
Dissolved oxygen (DO) 6.1 mg/L
pH (lab) 7.42
Conductivity 230 µmho/cm
Alkalinity
(acid neutralizing capacity) 		604.5 µeq/L
Dissolved organic carbon (DOC) 4.2 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 248
Rosyside Dace 156
Swallowtail Shiner 152
Common Shiner 112
Creek Chub 63
White Sucker 56
American Eel 41
Cutlip Minnow 24
Tessellated Darter 22
Redbreast Sunfish 21
Bluegill 9
Pumpkinseed 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Fowler's Toad
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Canada Thistle
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 29
Orthocladiinae A Non-Biting Midges 24
Ephemerella Sulphur Mayfly 8
Eurylophella Mayfly 7
Diamesa Bloodworm 5
Clinocera Aquatic Dance Fly 4
Cricotopus Non-Biting Midges 4
Neophylax Caddisfly 3
Gomphidae Clubtail Dragonfly 2
Nemouridae Nemourid Stonefly 2
Perlodidae Perlodid Stonefly 2
Amphinemura Spring Stonefly 2
Optioservus Riffle Beetle 1
Psephenus Water Penny 1
Diplectrona Net-Spinning Caddisfly 1
Berosus 1
Orthocladius Non-Biting Midges 1
Rheosmittia Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Ameletus Combmouthed Minnow Mayfly 1
Prosimulium Black Fly 1
Stegopterna Black Fly 1
Nigronia Megaloptera (Dark Fishfly) 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.