MBSS Site Summary for: RKGR-208-R-2002

Site Photos

Field photo showing stream conditions at site RKGR-208-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site RKGR-208-R-2002-2 (Opens in a new window)

Located on HAWLING R UT 1 in the Rocky Gorge Dam watershed, 8-digit code: 02131107.
This stream was visited in the spring on 4/4/2002 and again in the summer on 7/2/2002.

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 Fair - 3.0 / 5.0
Benthic IBI Good - 4.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 1,336 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 3 %
Agricultural Land Use 84 %
Forested Land Use 13 %


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 14/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 65 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 25 meters 		14/20 (Suboptimal)
Shading 95 %
Embeddedness 25 %


Stream Water Quality:
Water temperature 20 ° C
Dissolved oxygen (DO) 6.3 mg/L
pH (lab) 7.22
Conductivity 110 µmho/cm
Alkalinity
(acid neutralizing capacity) 		225.3 µeq/L
Dissolved organic carbon (DOC) 1.2 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
Blacknose Dace 538
Rosyside Dace 206
Green Sunfish 89
White Sucker 31
Creek Chub 28
Tessellated Darter 14
Longnose Dace 13
Margined Madtom 4
Central Stoneroller 2
Bluegill 1
Swallowtail Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Green Frog
Northern Two-Lined Salamander
Northern Watersnake
Pickerel 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
Ephemerella Sulphur Mayfly 28
Micropsectra Non-Biting Midges 14
Amphinemura Spring Stonefly 7
Stenonema Flatheaded Mayfly 6
Conchapelopia Non-Biting Midges 6
Anchytarsus Beetle 4
Oulimnius Riffle Beetle 4
Isonychia Slate Drake Mayfly 3
Elmidae Riffle Beetle 3
Heptageniidae Flathead Mayfly 3
Polypedilum Non-Biting Midges 3
Rheosmittia Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Leptophlebiidae Pronggilled Mayfly 1
Simuliidae Black Fly 1
Neophylax Caddisfly 1
Rhyacophila Free-Living Caddisfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Eurylophella Mayfly 1
Lype Net Tube 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.