MBSS Site Summary for: MATT-212-A-2011

Site Photos

Field photo showing stream conditions at site MATT-212-A-2011-1 (Opens in a new window) Field photo showing stream conditions at site MATT-212-A-2011-2 (Opens in a new window)

Located on MATTAWOMAN CREEK UT in the Mattawoman Creek watershed, 8-digit code: 02140111.
This stream was visited in the spring on 3/9/2011 and again in the summer on 6/21/2011.

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 - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 972 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 8.7 %
Agricultural Land Use 12.4 %
Forested Land Use 72.8 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 16/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 56 meters 		18/20 (Optimal)
Riffle Quality
Riffle Extent = 23 meters 		14/20 (Suboptimal)
Shading 90 %
Embeddedness 20 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
pH (lab) 6.88
Alkalinity
(acid neutralizing capacity) 		201 µeq/L
Dissolved organic carbon (DOC) 6.4394 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 13 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Fallfish 70
Rosyside Dace 33
Blacknose Dace 29
American Eel 13
Least Brook Lamprey 12
Eastern Mudminnow 7
Tessellated Darter 6
Bluegill 5
Creek Chubsucker 2
Pumpkinseed 2
White Sucker 2
Brown Bullhead 1
Yellow Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern American Toad
Eastern Red-Backed Salamander
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Maccaffertium March Brown And Cahill Mayfly 16
Cheumatopsyche Net-Spinning Caddisfly 16
Prostoia Spring Stonefly 11
Psilotreta Mortarjoint Casemaker Caddisfly 8
DIAMESINAE Non-Biting Midges 6
Acerpenna Tiny Blue-Winged Olive Mayflies 5
CHLOROPERLIDAE Green Stonefly 5
NEMOURIDAE Nemourid Stonefly 4
Tanytarsus Non-Biting Midges 4
Oulimnius Riffle Beetle 3
Amphinemura Spring Stonefly 3
Haploperla Green Stonefly 3
Paraphaenocladius Non-Biting Midges 3
Bezzia Biting Midge 2
Hexatoma Crane Fly 2
Eccoptura Yellow Stone Stonefly 2
LEPTOPHLEBIIDAE Pronggilled Mayfly 2
Optioservus Riffle Beetle 1
Orthocladius Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Trissopelopia Non-Biting Midges 1
LIMNEPHILIDAE Northern Casemaker Caddisfly 1
Neoporous Predaceous Diving Beetle 1
Enochrus 1
Polycentropus Tube Maker Caddisfly 1
Isoperla Stripetail Stonefly 1
Erioptera Cranefly 1
Ptilostomis Giant Casemaker Caddisfly 1
GOMPHIDAE Clubtail Dragonfly 1
Hagenius Clubtail Dragonfly 1
Paratanytarsus Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Pseudorthocladius Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Rheotanytarsus Non-Biting Midges 1
Diplectrona Net-Spinning Caddisfly 1
Unniella Non-Biting Midge 1
Corynoneura Non-Biting Midges 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.