MBSS Site Summary for: ZEKI-302-R-2001

Site Photos

Field photo showing stream conditions at site ZEKI-302-R-2001-57 (Opens in a new window) Field photo showing stream conditions at site ZEKI-302-R-2001-58 (Opens in a new window) Field photo showing stream conditions at site ZEKI-302-R-2001-59 (Opens in a new window) Field photo showing stream conditions at site ZEKI-302-R-2001-60 (Opens in a new window)

Located on ZEKIAH SWAMP RUN in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/9/2001 and again in the summer on 8/2/2001.

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 Good - 4.3 / 5.0
Benthic IBI Good - 4.4 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 39,411 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 13 %
Agricultural Land Use 28 %
Forested Land Use 58 %


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

Physical Stream Habitat
Instream Habitat 19/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 75 meters 		15/20 (Suboptimal)
Riffle Quality
Riffle Extent = 70 meters 		16/20 (Optimal)
Shading 85 %
Embeddedness 30 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 18.4 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 6.11
Conductivity 110 µmho/cm
Alkalinity
(acid neutralizing capacity) 		104.2 µeq/L
Dissolved organic carbon (DOC) 3.6 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 22 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 1010
Redfin Pickerel 260
Tessellated Darter 187
Creek Chubsucker 176
Fallfish 121
Bluegill 113
Pirate Perch 111
Golden Shiner 109
Pumpkinseed 102
Largemouth Bass 44
Chain Pickerel 24
Tadpole Madtom 23
American Eel 17
Margined Madtom 3
Rosyside Dace 3
Brown Bullhead 2
White Sucker 2
Eastern Mosquitofish 1
Green Sunfish 1
Least Brook Lamprey 1
Lepomis Hybrid 1
Yellow Perch 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Common Five-Lined Skink
Eastern Ratsnake
Eastern Snapping Turtle
Northern Green Frog
Southern Leopard Frog
Stinkpot

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 38
Perlodidae Perlodid Stonefly 29
Cricotopus/Orthocladius Midge 12
Nemouridae Nemourid Stonefly 7
Limnephilidae Northern Casemaker Caddisfly 4
Conchapelopia Non-Biting Midges 3
Cricotopus Non-Biting Midges 3
Parametriocnemus Non-Biting Midges 3
Tanytarsus Non-Biting Midges 3
Rhyacophila Free-Living Caddisfly 3
Caecidotea Isopod 3
Bezzia Biting Midge 2
Tvetenia Non-Biting Midges 2
Cheumatopsyche Net-Spinning Caddisfly 2
Eurylophella Mayfly 2
Taeniopterygidae Winter Stonefly 2
Taeniopteryx Winter Stonefly 2
Ablabesmyia Non-Biting Midge 1
Brillia Non-Biting Midges 1
Synurella Amphipod 1
Triaenodes Long-Horned Caddisfly 1
Stegopterna Black Fly 1
Neophylax Caddisfly 1
Stenonema Flatheaded Mayfly 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.