MBSS Site Summary for: STMA-113-A-2011

Site Photos

Field photo showing stream conditions at site STMA-113-A-2011-1 (Opens in a new window) Field photo showing stream conditions at site STMA-113-A-2011-2 (Opens in a new window)

Located on FISHERMAN CREEK in the St. Mary's River watershed, 8-digit code: 02140103.
This stream was visited in the spring on 3/2/2011 and again in the summer on 6/22/2011.

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 - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 614 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 13.9 %
Agricultural Land Use 24.4 %
Forested Land Use 58.1 %


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

Physical Stream Habitat

Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 62 meters
10/20 (Marginal)
Riffle Quality
Riffle Extent = 16 meters
16/20 (Optimal)
Shading 75 %
Embeddedness 30 %


Stream Water Quality:

pH (lab) 6.465
Alkalinity
(acid neutralizing capacity)
164.8 µeq/L
Dissolved organic carbon (DOC) 3.4679 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 6 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
American Eel 77
Eastern Mudminnow 39
Blacknose Dace 31
Creek Chubsucker 13
Least Brook Lamprey 6
Golden Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:

American Bullfrog
Northern Green Frog

Crayfish:

No crayfish noted.

Exotic Plants:

Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:

Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Thienemannimyia Group Non-Biting Midges 25
Rheotanytarsus Non-Biting Midges 11
Ablabesmyia Non-Biting Midge 6
CHLOROPERLIDAE Green Stonefly 6
Hexatoma Crane Fly 4
TUBIFICIDAE Aquatic Worm 4
Diplocladius Non-Biting Midges 4
Caecidotea Isopod 3
Phaenopsectra Non-Biting Midges 3
Nanocladius Non-Biting Midges 3
Orthocladius Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Prosimulium Black Fly 3
Stegopterna Black Fly 3
Heleniella European Non-Biting Midge 3
Chimarra Fingernet Caddisfly 3
Stenelmis Beetle 2
Goera 2
Leuctra  Rolled-Winged Stonefly 2
Gammarus Amphipod 2
Polypedilum Non-Biting Midges 2
Thienemanniella Non-Biting Midges 2
Paratanytarsus Non-Biting Midges 2
Leptophlebia Pronggilled Mayfly 2
Cordulegaster Spiketail Dragonfly 1
Prostoia Spring Stonefly 1
Dineutus Whirlygig Beetle 1
Tribelos Non-Biting Midges 1
Tvetenia Non-Biting Midges 1
Paraphaenocladius Non-Biting Midges 1
NEMOURIDAE Nemourid Stonefly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Microtendipes Non-Biting Midges 1
Brillia Non-Biting Midges 1
Synurella Amphipod 1
Probezzia Biting Midges 1
SIMULIIDAE Black Fly 1
TABANIDAE Horse Fly 1
Heteroplectron Caddisfly 1
GOMPHIDAE Clubtail Dragonfly 1
Chrysops Deerfly 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.