MBSS Site Summary for: GILB-109-R-2001

Site Photos

Field photo showing stream conditions at site GILB-109-R-2001-28 (Opens in a new window) Field photo showing stream conditions at site GILB-109-R-2001-29 (Opens in a new window) Field photo showing stream conditions at site GILB-109-R-2001-30 (Opens in a new window) Field photo showing stream conditions at site GILB-109-R-2001-31 (Opens in a new window) Field photo showing stream conditions at site GILB-109-R-2001-32 (Opens in a new window)

Located on CHURCH RUN in the Gilbert Swamp watershed, 8-digit code: 02140107.
This stream was visited in the spring on 3/7/2001 and again in the summer on 6/19/2001.

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 Poor - 2.7 / 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 229 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 20 %
Agricultural Land Use 60 %
Forested Land Use 21 %


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 16/20 (Optimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 60 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 20 meters 		10/20 (Marginal)
Shading 99 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 18.6 ° C
Dissolved oxygen (DO) 7.7 mg/L
pH (lab) 6.03
Conductivity 100 µmho/cm
Alkalinity
(acid neutralizing capacity) 		90.7 µeq/L
Dissolved organic carbon (DOC) 4.1 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 51
Blacknose Dace 23
Tessellated Darter 6
Golden Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle
Northern Green Frog
Northern Two-Lined Salamander
Pickerel Frog
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 63
Stegopterna Black Fly 17
Conchapelopia Non-Biting Midges 13
Pycnopsyche Great Autumn Brown Sedge Caddisfly 12
Leptophlebiidae Pronggilled Mayfly 5
Chrysops Deerfly 3
Caecidotea Isopod 2
Synurella Amphipod 2
Pisidiidae Pill Clam 2
Hemerodromia Tiny Fly 1
Ceratopogon Biting Midge 1
Hexatoma Crane Fly 1
Cheumatopsyche Net-Spinning Caddisfly 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.