MBSS Site Summary for: PRET-102-R-2008

Site Photos

Field photo showing stream conditions at site PRET-102-R-2008-1 (Opens in a new window) Field photo showing stream conditions at site PRET-102-R-2008-2 (Opens in a new window)

Located on UT TO GUNPOWDER FALLS in the Prettyboy Reservoir watershed, 8-digit code: 02130806.
This stream was visited in the spring on 3/11/2008 and again in the summer on 6/6/2008.

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 - 2.3 / 5.0
Benthic IBI Fair - 3.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 482 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 0.1 %
Agricultural Land Use 76.6 %
Forested Land Use 23.3 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 22 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 68 meters 		15/20 (Suboptimal)
Shading 25 %
Embeddedness 40 %


Stream Water Quality:
Water temperature 15.6 ° C
Dissolved oxygen (DO) 9.2 mg/L
pH (lab) 7.6
Conductivity 207 µmho/cm
Alkalinity
(acid neutralizing capacity) 		665.3 µeq/L
Dissolved organic carbon (DOC) 0.7898 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 236
Creek Chub 72
Rosyside Dace 5
White Sucker 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Dusky Salamander
Northern Two-Lined Salamander
Pickerel Frog

Crayfish:
Cambarus bartonii bartonii
Orconectes virilis

Exotic Plants:
Autumn Olive
Canada Thistle
Garlic Mustard
Multiflora Rose
Reed Canary Grass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Parametriocnemus Non-Biting Midges 17
Optioservus Riffle Beetle 11
Chimarra Fingernet Caddisfly 9
Sympotthastia Non-Biting Midges 8
Neophylax Caddisfly 7
Hyalella Amphipod 7
Hydropsyche Net-Spinning Caddisfly 7
Orthocladius Non-Biting Midges 6
Prosimulium Black Fly 6
Pseudolimnophila Crane Fly 6
Diamesa Bloodworm 4
Nemouridae Nemourid Stonefly 4
Orthocladiinae Midge 3
Stenelmis Beetle 2
Cheumatopsyche Net-Spinning Caddisfly 2
Diplectrona Net-Spinning Caddisfly 2
Microtendipes Non-Biting Midges 2
Maccaffertium March Brown And Cahill Mayfly 2
Tvetenia Non-Biting Midges 2
Lumbriculidae Worm 2
Microcylloepus Riffle Beetle 1
Thienemannimyia Group Non-Biting Midges 1
Rheotanytarsus Non-Biting Midges 1
Capniidae Small Winter Stonefly 1
Prostoia Spring Stonefly 1
Limnodrilus Worm 1
Anchytarsus Beetle 1
Corynoneura Non-Biting Midges 1
Eukiefferiella 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.