MBSS Site Summary for: MAGO-104-R-2003

Site Photos

Field photo showing stream conditions at site MAGO-104-R-2003-0838 (Opens in a new window) Field photo showing stream conditions at site MAGO-104-R-2003-0839 (Opens in a new window)

Located on LAKE WATERFORD UT2 in the Magothy River watershed, 8-digit code: 02131001.
This stream was visited in the spring on 3/11/2003 and again in the summer on 6/16/2003.

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 - 2.0 / 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 225 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 45 %
Agricultural Land Use 42 %
Forested Land Use 13 %


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

Physical Stream Habitat
Instream Habitat 7/20 (Marginal)
Epifaunal Substrate 8/20 (Marginal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 61 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 18 meters 		9/20 (Marginal)
Shading 85 %
Embeddedness 50 %


Stream Water Quality:
Water temperature 19.1 ° C
Dissolved oxygen (DO) 6.4 mg/L
pH (lab) 6.73
Conductivity 247 µmho/cm
Alkalinity
(acid neutralizing capacity) 		862.9 µeq/L
Dissolved organic carbon (DOC) 7.7 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mosquitofish 51
Bluegill 10
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Stegopterna Black Fly 58
Nemouridae Nemourid Stonefly 16
Enchytraeidae Aquatic Worm 12
Hydrobaenus Midge 7
Tubificidae Aquatic Worm 6
Physa Air-Breathing Freshwater Snail 3
Ptilostomis Giant Casemaker Caddisfly 3
Caecidotea Isopod 2
Tipula Crane Fly 2
Hydroporus Water Beetle 2
Lumbriculidae Worm 2
Musculium Fingernail Clam 2
Tipulidae Cranefly 1
Synurella Amphipod 1
Helocombus 1
Mesosmittia 1
Orthocladiinae Midge 1
Limnophyes Non-Biting Midge 1
Orthocladius Non-Biting Midges 1
Parametriocnemus Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 1
Limnephilidae Northern Casemaker 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.