MBSS Site Summary for: ZEKI-109-R-2001

Site Photos

Field photo showing stream conditions at site ZEKI-109-R-2001-95 (Opens in a new window) Field photo showing stream conditions at site ZEKI-109-R-2001-96 (Opens in a new window)

Located on ZEKIAH SWAMP RUN UT2 in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/13/2001 and again in the summer on 6/25/2001.

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 Fair - 3.0 / 5.0
Benthic IBI Good - 4.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 899 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 2 %
Agricultural Land Use 53 %
Forested Land Use 43 %


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 10/20 (Marginal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 35 meters 		8/20 (Marginal)
Riffle Quality
Riffle Extent = 60 meters 		14/20 (Suboptimal)
Shading 94 %
Embeddedness 35 %


Stream Water Quality:
Water temperature 18.2 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 6.68
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		117.6 µeq/L
Dissolved organic carbon (DOC) 2.6 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 10 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 63
Blacknose Dace 22
Tessellated Darter 11
American Eel 4
Largemouth Bass 3
Pirate Perch 3
Least Brook Lamprey 2
Bluegill 1
Pumpkinseed 1
Redfin Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander
Pickerel Frog
Wood 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
Cricotopus/Orthocladius Midge 26
Chloroperlidae Green Stonefly 17
Ephemerella Sulphur Mayfly 11
Acerpenna Tiny Blue-Winged Olive Mayflies 11
Prosimulium Black Fly 9
Sympotthastia Non-Biting Midges 8
Oulimnius Riffle Beetle 6
Tanytarsini Non-Biting Midges 4
Parametriocnemus Non-Biting Midges 3
Caecidotea Isopod 3
Stegopterna Black Fly 2
Stenonema Flatheaded Mayfly 2
Conchapelopia Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 2
Eccoptura Yellow Stone Stonefly 1
Eukiefferiella Non-Biting Midges 1
Orthocladiinae A 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.