MBSS Site Summary for: NANT-110-R-2015

Site Photos

Field photo showing stream conditions at site NANT-110-R-2015_Midpoint-downstream (Opens in a new window) Field photo showing stream conditions at site NANT-110-R-2015_Midpoint-upstream (Opens in a new window)

Located on REWASTICO CREEK in the Nanticoke River watershed, 8-digit code: 02130305.
This stream was visited in the spring on 4/7/2015 and again in the summer on 7/15/2015.

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 Poor - 1.3 / 5.0
Benthic IBI Poor - 2.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,077 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 5.2 %
Agricultural Land Use 74.5 %
Forested Land Use 13.8 %


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

Physical Stream Habitat
Instream Habitat 8/20 (Marginal)
Epifaunal Substrate 6/20 (Marginal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 75 meters 		11/20 (Suboptimal)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 70 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
pH (lab) 6.22
Alkalinity
(acid neutralizing capacity) 		307.3 µeq/L
Dissolved organic carbon (DOC) 2.647 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 2 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 66
Chain Pickerel 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Spring Peeper

Crayfish:
Procambarus clarkii

Exotic Plants:
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Caecidotea Isopod 82
Crangonyx Amphipod 34
Orthocladius Non-Biting Midges 9
Physa Air-Breathing Freshwater Snail 4
Hydrobaenus Midge 2
Ironoquia Northern Caddisfly 2
Neoporous Predaceous Diving Beetle 1
Agabus Predatory Aquatic Beetle 1
Orthocladiinae Midge 1
Chironomus Non-Biting Midges 1
Kiefferulus 1
Ptilostomis Giant Casemaker Caddisfly 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.