MBSS Site Summary for: ISLE-115-R-2001

Site Photos

Located on CHURCH BR in the Isle of Wight Bay watershed, 8-digit code: 02130103.
This stream was visited in the spring on 3/9/2001 and again in the summer on 6/11/2001.

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 Fair - 3.3 / 5.0
Benthic IBI Fair - 3.6 / 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 2,644 acres Cows standing in a stream at a site with high agricultural land use. Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
Urban Land Use 5 %
Agricultural Land Use 62 %
Forested Land Use 31 %


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 15/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 60 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 20 meters 		11/20 (Suboptimal)
Shading 92 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 18.8 ° C
Dissolved oxygen (DO) 5.7 mg/L
pH (lab) 6.48
Conductivity 130 µmho/cm
Alkalinity
(acid neutralizing capacity) 		232.5 µeq/L
Dissolved organic carbon (DOC) 9.8 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 7 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Golden Shiner 69
Pumpkinseed 54
Eastern Mudminnow 34
Pirate Perch 32
American Eel 31
Creek Chubsucker 13
Bluegill 12
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Fowler's Toad

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Stegopterna Black Fly 16
Cheumatopsyche Net-Spinning Caddisfly 9
Tubificidae Aquatic Worm 9
Lumbriculidae Worm 8
Polypedilum Non-Biting Midges 7
Sphaerium Fingernail Clam 6
Chironomini Non-Biting Midge 4
Gammarus Amphipod 4
Cricotopus/Orthocladius Midge 4
Parametriocnemus Non-Biting Midges 4
Phaenopsectra Non-Biting Midges 4
Orthocladiinae Midge 3
Prosimulium Black Fly 3
Simuliidae Black Fly 3
Naididae Aquatic Worm 2
Corynoneura Non-Biting Midges 2
Thienemannimyia group Non-Biting Midges 2
Tribelos Non-Biting Midges 2
Cnephia Black Fly 2
Tanytarsini Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 1
Habrophlebia Prong-Gilled Mayfly 1
Psychodidae Moth Fly 1
Dicrotendipes Non-Biting Midges 1
Diplocladius Non-Biting Midges 1
Caecidotea Isopod 1
Paraleptophlebia Blue Quill Mayfly 1
Culicoides 1
Endochironomus 1
Stenelmis 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.