MBSS Site Summary for: YOUG-101-A-2010

Site Photos

Field photo showing stream conditions at site YOUG-101-A-2010-1 (Opens in a new window) Field photo showing stream conditions at site YOUG-101-A-2010-2 (Opens in a new window)

Located on Hoyes Run in the Youghiogheny River watershed, 8-digit code: 05020201.
This stream was visited in the spring on 4/8/2010 and again in the summer on 6/21/2010.

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 Fair - 3.0 / 5.0
Benthic IBI Fair - 3.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 862 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 10.6 %
Agricultural Land Use 13.5 %
Forested Land Use 72 %


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

Physical Stream Habitat
Instream Habitat 6/20 (Marginal)
Epifaunal Substrate 2/20 (Poor)
Velocity/Depth Diversity 12/20 (Suboptimal)
Pool Quality
Pool Extent = 70 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 8 meters 		11/20 (Suboptimal)
Shading 10 %
Embeddedness 90 %
The embeddedness, a measure of silt on the stream bottom, was 90%. This is relatively high, and may exclude some biota.


Stream Water Quality:
pH (lab) 8.505
Alkalinity
(acid neutralizing capacity) 		955.8 µeq/L
Dissolved organic carbon (DOC) 1.077 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 50
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Amphinemura Spring Stonefly 29
Thienemannimyia Group Non-Biting Midges 9
Chrysops Deerfly 9
Limnephilidae Northern Casemaker Caddisfly 6
Probezzia Biting Midges 4
Neoporus 3
Lepidostoma Little Brown Sedge Caddisfly 3
Pisidiidae Pill Clam 3
Dicrotendipes Non-Biting Midges 3
Ephemerella Sulphur Mayfly 3
Corixidae Water Boatman 2
Psectrocladius Non-Biting Midge 2
Amphipoda Scud 2
Baetidae Small Minnow Mayfly 2
Paraphaenocladius Non-Biting Midges 2
Rheotanytarsus Non-Biting Midges 2
Tanytarsus Non-Biting Midges 2
Ceratopogon Biting Midge 2
Pseudolimnophila Crane Fly 2
Empididae Dance Fly 1
Ceratopsyche 1
Triaenodes Long-Horned Caddisfly 1
Orthocladiinae Midge 1
Nemouridae Nemourid Stonefly 1
Hydropsyche Net-Spinning Caddisfly 1
Pilaria 1
Stagnicola Air Breathing Freshwater Snail 1
Physa Air-Breathing Freshwater Snail 1
Sialis Alderfly 1
Baetis Blue-Winged Olive Mayfly 1
Neophylax Caddisfly 1
Hexatoma Crane Fly 1
Thienemanniella Non-Biting Midges 1
Rheocricotopus Non-Biting Midges 1
Optioservus Riffle Beetle 1
Tvetenia Non-Biting Midges 1
Microvelia Small Water Strider Beetle 1
Ostrocerca Stonefly 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.