MBSS Site Summary for: MO-P-035-227-97


Located on HAWLINGS R in the Rocky Gorge Dam watershed, 8-digit code: 02131107.
This stream was visited in the spring on 3/21/1997 and again in the summer on 7/17/1997.

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 Good - 4.3 / 5.0
Benthic IBI Poor - 2.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 10,352 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 0.5 %
Agricultural Land Use 64.9 %
Forested Land Use 33.4 %


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 16/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 15/20 (Suboptimal)
Shading 90 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 22.9 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 7.2
Conductivity 110 µmho/cm
Alkalinity
(acid neutralizing capacity) 		404.3 µeq/L
Dissolved organic carbon (DOC) 2.2 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 14 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Fallfish 72
White Sucker 51
Tessellated Darter 30
Longnose Dace 24
Blacknose Dace 12
Rosyside Dace 11
Northern Hogsucker 10
Largemouth Bass 4
Margined Madtom 4
Central Stoneroller 3
Creek Chub 3
Shorthead Redhorse 3
Blue Ridge Sculpin 1
Brown Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Box Turtle
Eastern Snapping Turtle
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 37
Polypedilum Non-Biting Midges 9
Ephemerella Sulphur Mayfly 8
Conchapelopia Non-Biting Midges 7
Orthocladiinae A Non-Biting Midges 6
Rheotanytarsus Non-Biting Midges 4
Clinocera Aquatic Dance Fly 3
Diamesa Bloodworm 3
Tubificidae Aquatic Worm 2
Cheumatopsyche Net-Spinning Caddisfly 2
Parametriocnemus Non-Biting Midges 2
Simuliidae Black Fly 2
Nanocladius Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Hydropsyche Net-Spinning Caddisfly 1
Nemouridae Nemourid Stonefly 1
Stenelmis Beetle 1
Stenonema Flatheaded Mayfly 1
Dicranota Hairy-Eyed Cranefly 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.