MBSS Site Summary for: ANAC-114-R-2004

Site Photos

Field photo showing stream conditions at site ANAC-114-R-2004-18 (Opens in a new window) Field photo showing stream conditions at site ANAC-114-R-2004-19 (Opens in a new window)

Located on INDIAN CREEK UT 2 in the Anacostia River watershed, 8-digit code: 02140205.
This stream was visited in the spring on 3/3/2004 and again in the summer on 6/7/2004.

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 - 1.0 / 5.0
Benthic IBI Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 97 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 25 %
Agricultural Land Use 22 %
Forested Land Use 51 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 67 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 8 meters 		6/20 (Marginal)
Shading 90 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 24 ° C
Dissolved oxygen (DO) 6.7 mg/L
pH (lab) 7.55
Conductivity 223 µmho/cm
Alkalinity
(acid neutralizing capacity) 		2573 µeq/L
Dissolved organic carbon (DOC) 4.2 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
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Spring Peeper
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Lymnaeidae Pond Snail 37
Lumbriculidae Worm 11
Physa Air-Breathing Freshwater Snail 11
Thienemannimyia group Non-Biting Midges 10
Hydrobaenus Midge 4
Coenagrionidae Narrowwinged Damselfly 3
Orthocladius Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Zavrelimyia Non-Biting Midges 2
Polypedilum Non-Biting Midges 2
Limnodrilus Worm 2
Ablabesmyia Non-Biting Midge 2
Clinotanypus Non-Biting Midge 2
Micropsectra Non-Biting Midges 2
Natarsia Non-Biting Midges 2
Tipula Crane Fly 2
Spirosperma Aquatic Oligochaete Worm 2
Naididae Aquatic Worm 1
Tubificidae Aquatic Worm 1
Pseudolimnophila Crane Fly 1
Belostoma 1
Chauliodes 1
Copelatus 1
Menetus Air Breathing Freshwater Snail 1
Isotomurus Elongate-Bodied Springtail 1
Orthocladiinae Midge 1
Hydroporus Water Beetle 1
Laccophilus Water Beetle 1
Paratanytarsus 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.