MBSS Site Summary for: BRIG-203-R-2017

Site Photos

Field photo showing stream conditions at site BRIG-203-R-2017-MidpointLookingDownstream (Opens in a new window) Field photo showing stream conditions at site BRIG-203-R-2017-MidpointLookingUpstream (Opens in a new window)

Located on UT Triadelphia Reservoir in the Brighton Dam watershed, 8-digit code: 02131108.
This stream was visited in the spring on 3/21/2017 and again in the summer on 8/8/2017.

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 Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,251 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 22.7 %
Agricultural Land Use 41.2 %
Forested Land Use 31.8 %


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

Physical Stream Habitat

Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 29 meters
12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 46 meters
14/20 (Suboptimal)
Shading 60 %
Embeddedness 25 %


Stream Water Quality:

pH (lab) 8.02
Alkalinity
(acid neutralizing capacity)
1825.2 µeq/L
Dissolved organic carbon (DOC) 1.3453 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 11 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Longnose Dace 29
Spottail Shiner 24
Largemouth Bass 22
Tessellated Darter 14
Green Sunfish 10
Cyprinella Sp. 9
Blacknose Dace 7
Bluegill 7
Yellow Bullhead 6
Brown Bullhead 2
Smallmouth Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:

Eastern Snapping Turtle
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:

Orconectes virilis

Exotic Plants:

Autumn Olive
Garlic Mustard
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Wavyleaf Basketgrass
Wineberry
 

Benthic Macroinvertebrates:

Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
CHEUMATOPSYCHE Net-Spinning Caddisfly 19
HYDROPSYCHE Net-Spinning Caddisfly 9
STENELMIS Beetle 7
PHYSA Air-Breathing Freshwater Snail 6
ANTOCHA Crane Fly 6
OULIMNIUS Riffle Beetle 6
OPTIOSERVUS Riffle Beetle 4
ORTHOCLADIUS Non-Biting Midges 4
CHIMARRA Fingernet Caddisfly 4
FOSSARIA Air Breathing Freshwater Snail 4
NEOPHYLAX Caddisfly 4
DICROTENDIPES Non-Biting Midges 4
MACCAFFERTIUM March Brown And Cahill Mayfly 3
SYMPOTTHASTIA Non-Biting Midges 3
TANYTARSUS Non-Biting Midges 3
THIENEMANNIMYIA GROUP Non-Biting Midges 3
PARATANYTARSUS Non-Biting Midges 2
MICROTENDIPES Non-Biting Midges 2
FERRISSIA Small Air-Breathing Freshwater Limpets 2
EPHEMERELLA Sulphur Mayfly 2
ACERPENNA Tiny Blue-Winged Olive Mayflies 1
HEMERODROMIA Tiny Fly 1
PSEPHENUS Water Penny 1
AMPHINEMURA Spring Stonefly 1
POLYPEDILUM Non-Biting Midges 1
POTTHASTIA Non-Biting Midges 1
PARAMETRIOCNEMUS Non-Biting Midges 1
PISIDIIDAE Pill Clam 1
HYDROPTILA Microcaddisfly 1
HYDROBAENUS Midge 1
ORTHOCLADIINAE Midge 1
CLINOCERA Aquatic Dance Fly 1
DIAMESA Bloodworm 1
MICROPSECTRA Non-Biting Midges 1
ABLABESMYIA Non-Biting Midge 1
CHIRONOMINI Non-Biting Midge 1
CRICOTOPUS Non-Biting Midges 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.