MBSS Site Summary for: NEAS-111-R-2001

Site Photos

Located on NORTHEAST CR UT1 in the Northeast River watershed, 8-digit code: 02130608.
This stream was visited in the spring on 3/19/2001 and again in the summer on 7/23/2001.

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 - 3.7 / 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 1,497 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 2 %
Agricultural Land Use 88 %
Forested Land Use 10 %


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

Physical Stream Habitat
Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 4/20 (Poor)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 78 %
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 18.2 ° C
Dissolved oxygen (DO) 7.6 mg/L
pH (lab) 7.26
Conductivity 180 µmho/cm
Alkalinity
(acid neutralizing capacity) 		611.2 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 8 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Creek Chub 307
White Sucker 171
Banded Killifish 94
Rosyside Dace 79
Tessellated Darter 47
Swallowtail Shiner 10
Spottail Shiner 8
Blacknose Dace 4
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Micropsectra Non-Biting Midges 18
Conchapelopia Non-Biting Midges 13
Cricotopus/Orthocladius Midge 11
Hydrobaenus Midge 11
Dicrotendipes Non-Biting Midges 8
Caecidotea Isopod 7
Leptophlebia Pronggilled Mayfly 4
Chironominae Non-Biting Midge 3
Eurylophella Mayfly 3
Parakiefferiella European Non-Biting Midge 3
Physa Air-Breathing Freshwater Snail 2
Tubificidae Aquatic Worm 2
Cheumatopsyche Net-Spinning Caddisfly 2
Orthocladius Non-Biting Midges 2
Parametriocnemus Non-Biting Midges 1
Sympotthastia Non-Biting Midges 1
Cymbiodyta 1
Xylotopus Midge 1
Corduliidae Emerald Dragonfly 1
Gammarus Amphipod 1
Naididae Aquatic Worm 1
Stenochironomus European Non-Biting Midge 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Stenacron Mayfly 1
Callibaetis Speckled Dun Mayfly 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.