MBSS Site Summary for: SM-S-199-302-95


Located on ST CLEMENTS CR in the St. Clements Bay watershed, 8-digit code: 02140105.
This stream was visited in the spring on 3/16/1995 and again in the summer on 8/17/1995.

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 Good - 4.7 / 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 10,875 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 6.6 %
Agricultural Land Use 36.2 %
Forested Land Use 56.8 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 11/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		18/20 (Optimal)
Riffle Quality 7/20 (Marginal)
Shading 95 %
Embeddedness 60 %
The embeddedness, a measure of silt on the stream bottom, was 60%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 24 ° C
Dissolved oxygen (DO) 4.7 mg/L
Dissolved oxygen levels measured in the stream were very low (4.7 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 7.1
Conductivity 158 µmho/cm
Alkalinity
(acid neutralizing capacity) 		452.9 µeq/L
Dissolved organic carbon (DOC) 6 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Tessellated Darter 42
Redbreast Sunfish 36
Least Brook Lamprey 34
American Eel 32
Fallfish 18
Pumpkinseed 10
Eastern Mudminnow 9
Largemouth Bass 7
Sea Lamprey 6
Chain Pickerel 2
Pirate Perch 2
Creek Chubsucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern Box Turtle
Northern Green Frog
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 22
Gammarus Amphipod 16
Acerpenna Tiny Blue-Winged Olive Mayflies 10
Hexatoma Crane Fly 7
Nanocladius Non-Biting Midges 6
Leptophlebia Pronggilled Mayfly 6
Isoperla Stripetail Stonefly 6
Eurylophella Mayfly 5
Stenonema Flatheaded Mayfly 5
Corbicula Basket Clam 4
Pentaneura 3
Gomphus Clubtail Dragonfly 2
Ablabesmyia Non-Biting Midge 2
Tanytarsus Non-Biting Midges 2
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Caenis Mayfly 1
Macromia 1
Zavrelia 1
Helichus Beetle 1
Neophylax Caddisfly 1
Ceraclea Scaly-Winged Sedge Caddisfly 1
Microvelia Small Water Strider Beetle 1
Hemerodromia Tiny Fly 1
Polycentropus Tube Maker 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.