MBSS Site Summary for: MANO-104-R-2007

Site Photos

Field photo showing stream conditions at site MANO-104-R-2007-1 (Opens in a new window) Field photo showing stream conditions at site MANO-104-R-2007-2 (Opens in a new window)

Located on Back Creek in the Manokin River watershed, 8-digit code: 02130208.
This stream was visited in the spring on 4/23/2007 and again in the summer on 8/27/2007.

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 N R
Benthic IBI Poor - 2.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,638 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 14.9 %
Forested Land Use 85 %


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

Physical Stream Habitat
Instream Habitat not sampled
Epifaunal Substrate not sampled
Velocity/Depth Diversity not sampled
Pool Quality not sampled
Riffle Quality not sampled
Shading not sampled
Embeddedness not sampled


Stream Water Quality:
pH (lab) 4.29
Conductivity 0 µmho/cm
Alkalinity
(acid neutralizing capacity) 		-61.4 µeq/L
Dissolved organic carbon (DOC) 32.3977 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
Eastern Box Turtle
Northern Green Frog
Pickerel Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No Exotic Plants Observed
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Caecidotea Isopod 57
Scirtidae Marsh Beetle 23
Limnophyes Non-Biting Midge 10
Chrysomelidae Leaf Beetle 7
Diptera True Fly 4
Boyeria Spotted Darner Dragonfly 1
Cantopelopia 1
Hydaticus 1
Crangonyx Amphipod 1
Lepidoptera Aquatic Moth 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.