MBSS Site Summary for: NCRW-002-N-2004


Located on NORTH BR OF CHOPAWAPISIC in the watershed, 8-digit code: .
This stream was visited in the spring on 4/8/2004 and again in the summer on 6/15/2004.

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 N R
Benthic IBI N R

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,741 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 3 %
Forested Land Use 93 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 59 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 33 meters 		12/20 (Suboptimal)
Shading 77 %
Embeddedness 38 %


Stream Water Quality:
Water temperature 20.1 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 6.85
Alkalinity
(acid neutralizing capacity) 		196.4 µeq/L
Dissolved organic carbon (DOC) 2.4 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
Tessellated Darter 31
Margined Madtom 14
Redbreast Sunfish 9
Blacknose Dace 6
Bluegill 1
Chain Pickerel 1
Cutlip Minnow 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Spring Peeper
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Simulium Black Fly 36
Prosimulium Black Fly 35
Amphinemura Spring Stonefly 8
Ephemerella Sulphur Mayfly 5
Stenonema Flatheaded Mayfly 5
Orthocladius Non-Biting Midges 3
Rheosmittia Non-Biting Midges 2
Cheumatopsyche Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Cricotopus Non-Biting Midges 2
Acentrella Tiny Blue-Winged Olive Mayflies 2
Chimarra Fingernet Caddisfly 2
Lumbriculidae Worm 1
Isoperla Stripetail Stonefly 1
Eukiefferiella Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Stenelmis Beetle 1
Stegopterna Black Fly 1
Tanytarsus Non-Biting Midges 1
Ironoquia Northern Caddisfly 1
Boyeria Spotted Darner Dragonfly 1
Polypedilum Non-Biting Midges 1
Orthocladiinae Midge 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.