MBSS Site Summary for: NANT-123-R-2002

Site Photos

Field photo showing stream conditions at site NANT-123-R-2002-1 (Opens in a new window) Field photo showing stream conditions at site NANT-123-R-2002-2 (Opens in a new window)

Located on DENNIS CR in the Nanticoke River watershed, 8-digit code: 02130305.
This stream was visited in the spring on 3/13/2002 and again in the summer on 6/5/2002.

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 - 3.3 / 5.0
Benthic IBI Poor - 1.0 / 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 No data available 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 No data available
Agricultural Land Use No data available
Forested Land Use No data available


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

Physical Stream Habitat
Instream Habitat 13/20 (Suboptimal)
Epifaunal Substrate 10/20 (Marginal)
Velocity/Depth Diversity 8/20 (Marginal)
Pool Quality
Pool Extent = 65 meters 		13/20 (Suboptimal)
Riffle Quality
Riffle Extent = 10 meters 		8/20 (Marginal)
Shading 97 %
Embeddedness 70 %
The embeddedness, a measure of silt on the stream bottom, was 70%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 21.5 ° C
Dissolved oxygen (DO) 5.6 mg/L
pH (lab) 5.06
Conductivity 230 µmho/cm
Alkalinity
(acid neutralizing capacity) 		8.2 µeq/L
Dissolved organic carbon (DOC) 0.9 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
Eastern Mudminnow 30
Pirate Perch 21
Tadpole Madtom 20
Chain Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Chaetocladius Non-Biting Midges 62
Conchapelopia Non-Biting Midges 12
Trissopelopia Non-Biting Midges 6
Ablabesmyia Non-Biting Midge 6
Agabus Predatory Aquatic Beetle 4
Dicrotendipes Non-Biting Midges 4
Muscidae Fly 2
Lepidoptera Aquatic Moth 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.