MBSS Site Summary for: ZEKI-103-R-2001

Site Photos

Field photo showing stream conditions at site ZEKI-103-R-2001-51 (Opens in a new window) Field photo showing stream conditions at site ZEKI-103-R-2001-52 (Opens in a new window) Field photo showing stream conditions at site ZEKI-103-R-2001-53 (Opens in a new window) Field photo showing stream conditions at site ZEKI-103-R-2001-54 (Opens in a new window) Field photo showing stream conditions at site ZEKI-103-R-2001-55 (Opens in a new window)

Located on ZEKIAH SWAMP RUN UT4 in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/8/2001 and again in the summer on 6/20/2001.

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 - 1.7 / 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 112 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 5 %
Agricultural Land Use 36 %
Forested Land Use 59 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 9/20 (Marginal)
Velocity/Depth Diversity 7/20 (Marginal)
Pool Quality
Pool Extent = 60 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 22 meters 		5/20 (Poor)
Shading 96 %
Embeddedness 65 %
The embeddedness, a measure of silt on the stream bottom, was 65%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 19.2 ° C
Dissolved oxygen (DO) 7.2 mg/L
pH (lab) 5.87
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		40.1 µeq/L
Dissolved organic carbon (DOC) 1.4 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
Eastern Mudminnow 71
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Caecidotea Isopod 19
Stegopterna Black Fly 17
Synurella Amphipod 13
Prosimulium Black Fly 13
Spirosperma Aquatic Oligochaete Worm 5
Limnephilidae Northern Casemaker Caddisfly 5
Conchapelopia Non-Biting Midges 4
Nemouridae Nemourid Stonefly 3
Parametriocnemus Non-Biting Midges 3
Amphinemura Spring Stonefly 3
Polycentropodidae Trupetnet And Tubemaking Caddisfly 2
Pisidiidae Pill Clam 2
Hydrobaenus Midge 2
Gordiidae Horsehair Worm 2
Hexatoma Crane Fly 2
Tipula Crane Fly 2
Isotomurus Elongate-Bodied Springtail 1
Cura Flatworm 1
Rhyacophila Free-Living Caddisfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Tubificidae Aquatic Worm 1
Orthocladiinae Midge 1
Corynoneura Non-Biting Midges 1
Diplocladius 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.