MBSS Site Summary for: RKGR-106-R-2002

Site Photos

Field photo showing stream conditions at site RKGR-106-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site RKGR-106-R-2002-2 (Opens in a new window)

Located on REDDY BR in the Rocky Gorge Dam watershed, 8-digit code: 02131107.
This stream was visited in the spring on 3/13/2002 and again in the summer on 6/26/2002.

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 Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,257 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 10 %
Agricultural Land Use 62 %
Forested Land Use 27 %


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 13/20 (Suboptimal)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 51 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 24 meters 		12/20 (Suboptimal)
Shading 80 %
Embeddedness 30 %


Stream Water Quality:
Water temperature 20.8 ° C
Dissolved oxygen (DO) 5.9 mg/L
pH (lab) 6.9
Conductivity 160 µmho/cm
Alkalinity
(acid neutralizing capacity) 		447.8 µeq/L
Dissolved organic carbon (DOC) 4.7 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 196
Rosyside Dace 34
Longnose Dace 29
Green Sunfish 21
Tessellated Darter 17
White Sucker 15
Creek Chub 5
Fallfish 5
Bluegill 4
Largemouth Bass 3
Central Stoneroller 1
Golden Shiner 1
Pumpkinseed 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

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

Crayfish:
No crayfish noted.

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

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 15
Prosimulium Black Fly 12
Orthocladius Non-Biting Midges 7
Heptageniidae Flathead Mayfly 6
Neophylax Caddisfly 5
Tanypodinae Non-Biting Midges 5
Chimarra Fingernet Caddisfly 4
Thienemannimyia group Non-Biting Midges 4
Leptophlebiidae Pronggilled Mayfly 3
Optioservus Riffle Beetle 3
Thienemanniella Non-Biting Midges 3
Stenelmis Beetle 3
Hydrobaenus Midge 3
Orthocladiinae Midge 3
Hydropsyche Net-Spinning Caddisfly 3
Cheumatopsyche Net-Spinning Caddisfly 2
Rheosmittia Non-Biting Midges 2
Oulimnius Riffle Beetle 2
Tvetenia Non-Biting Midges 2
Amphinemura Spring Stonefly 2
Plecoptera Stonefly 1
Zavrelimyia Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Ephemerellidae Spiny Crawler Mayfly 1
Tanytarsini Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Stenonema Flatheaded Mayfly 1
Ablabesmyia Non-Biting Midge 1
Limnophyes Non-Biting Midge 1
Chaetocladius Non-Biting Midges 1
Bezzia Biting Midge 1
Sublettea 1
Sialis Alderfly 1
Hyalella Amphipod 1
Tipula Crane Fly 1
Tipulidae Cranefly 1
Simulium Black Fly 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.