MBSS Site Summary for: UPPC-107-R-2001

Site Photos

Field photo showing stream conditions at site UPPC-107-R-2001-1 (Opens in a new window) Field photo showing stream conditions at site UPPC-107-R-2001-2 (Opens in a new window) Field photo showing stream conditions at site UPPC-107-R-2001-3 (Opens in a new window)

Located on AYDYLOTTE BR in the Upper Pocomoke River watershed, 8-digit code: 02130203.
This stream was visited in the spring on 3/6/2001 and again in the summer on 6/12/2001.

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 - 4.7 / 5.0
Benthic IBI Good - 4.1 / 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 3,093 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 3 %
Agricultural Land Use 55 %
Forested Land Use 41 %


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

Physical Stream Habitat
Instream Habitat 18/20 (Optimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 45 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 35 meters 		12/20 (Suboptimal)
Shading 15 %
Embeddedness 80 %
The embeddedness, a measure of silt on the stream bottom, was 80%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 24.8 ° C
Dissolved oxygen (DO) 8.9 mg/L
pH (lab) 6.5
Conductivity 180 µmho/cm
Alkalinity
(acid neutralizing capacity) 		191 µeq/L
Dissolved organic carbon (DOC) 10.7 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 15 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Golden Shiner 38
Redbreast Sunfish 36
Creek Chubsucker 32
American Eel 28
Yellow Bullhead 22
Swallowtail Shiner 21
Eastern Mudminnow 18
Tessellated Darter 13
Pirate Perch 9
Pumpkinseed 9
Bluegill 6
Satinfin Shiner 6
Redfin Pickerel 4
Tadpole Madtom 4
Largemouth Bass 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle

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 27
Stegopterna Black Fly 14
Stenonema Flatheaded Mayfly 11
Cheumatopsyche Net-Spinning Caddisfly 10
Stenelmis Beetle 8
Phaenopsectra Non-Biting Midges 8
Simulium Black Fly 6
Paratanytarsus Non-Biting Midges 5
Tanytarsus Non-Biting Midges 3
Conchapelopia Non-Biting Midges 2
Dubiraphia Riffle Beetle 2
Hemerodromia Tiny Fly 2
Lumbriculidae Worm 2
Polycentropus Tube Maker Caddisfly 1
Taeniopteryx Winter Stonefly 1
Ancyronyx Spider Riffle Beetle 1
Corynoneura Non-Biting Midges 1
Bezzia Biting Midge 1
Pisidiidae Pill Clam 1
Ablabesmyia Non-Biting Midge 1
Clinotanypus Non-Biting Midge 1
Triaenodes Long-Horned Caddisfly 1
Stenacron 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.