MBSS Site Summary for: MO-P-245-303-97


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 Poor - 2.7 / 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 17,796 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 5.6 %
Agricultural Land Use 59.2 %
Forested Land Use 34.1 %


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

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 7/20 (Marginal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		16/20 (Optimal)
Riffle Quality 11/20 (Suboptimal)
Shading 94 %
Embeddedness 75 %
The embeddedness, a measure of silt on the stream bottom, was 75%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 22.3 ° C
Dissolved oxygen (DO) 7 mg/L
pH (lab) 7.25
Conductivity 142 µmho/cm
Alkalinity
(acid neutralizing capacity) 		578.5 µeq/L
Dissolved organic carbon (DOC) 2.5 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
Tessellated Darter 218
White Sucker 119
Fallfish 64
Largemouth Bass 22
Bluegill 8
Bluntnose Minnow 2
Northern Hogsucker 2
Yellow Perch 2
Central Stoneroller 1
Creek Chub 1
Margined Madtom 1
Redbreast Sunfish 1
Satinfin Shiner 1
Swallowtail Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Cricket Frog
Northern Green Frog
Northern Spring Peeper

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 55
Paratanytarsus Non-Biting Midges 6
Thienemannimyia Non-Biting Midges 6
Prostoia Spring Stonefly 4
Lumbriculidae Worm 3
Zavrelimyia Non-Biting Midges 3
Leptophlebia Pronggilled Mayfly 2
Thienemanniella Non-Biting Midges 1
Ephemerella Sulphur Mayfly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Brillia Non-Biting Midges 1
Microtendipes Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Chelifera Aquatic Dance Fly 1
Prosimulium Black Fly 1
Ameletus Combmouthed Minnow Mayfly 1
Stenonema Flatheaded Mayfly 1
Nigronia Megaloptera (Dark Fishfly) 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.