MBSS Site Summary for: ZEKI-012-S-2000

Site Photos

Field photo showing stream conditions at site ZEKI-012-S-2000-01 (Opens in a new window) Field photo showing stream conditions at site ZEKI-012-S-2000-02 (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 5/1/2000 and again in the summer on 6/13/2000.

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 - 3.7 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
(Hint: Screen readers will announce definitions; mouse users can hover over dotted text.)
Catchment area 332 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 7 %
Forested Land Use 93 %


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

Physical Stream Habitat
Instream Habitat 15/20 (Suboptimal)
Epifaunal Substrate 11/20 (Suboptimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 65 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 20 meters 		6/20 (Marginal)
Shading 95 %
Embeddedness 45 %


Stream Water Quality:
Water temperature 20.5 ° C
Dissolved oxygen (DO) 5.2 mg/L
pH (lab) 6.52
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		93.3 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 4 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Least Brook Lamprey 43
Blacknose Dace 23
Eastern Mudminnow 15
Redfin Pickerel 10
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Oulimnius Riffle Beetle 41
Ephemerella Sulphur Mayfly 14
Optioservus Riffle Beetle 7
Naididae Aquatic Worm 7
Chloroperlidae Green Stonefly 7
Cricotopus/Orthocladius Midge 5
Parametriocnemus Non-Biting Midges 4
Amphinemura Spring Stonefly 4
Polypedilum Non-Biting Midges 3
Simulium Black Fly 3
Potthastia Non-Biting Midges 2
Corynoneura Non-Biting Midges 2
Eukiefferiella Non-Biting Midges 2
Hydroporus Water Beetle 2
Hydrobius Water Scavenger Beetle 1
Acentrella Tiny Blue-Winged Olive Mayflies 1
Collembola Springtail 1
Cordulegaster Spiketail Dragonfly 1
Boyeria Spotted Darner Dragonfly 1
Conchapelopia Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Thienemanniella Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Leptophlebiidae Pronggilled Mayfly 1
Stegopterna Black Fly 1
Hexatoma Crane Fly 1
Tipula Crane Fly 1
Heptageniidae Flathead Mayfly 1
Dicranota Hairy-Eyed Cranefly 1
Ceratopogon Biting Midge 1
Ceratopogonidae Biting Midge 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.