MBSS Site Summary for: SEAS-120-R-2000

Site Photos

Field photo showing stream conditions at site SEAS-120-R-2000-01 (Opens in a new window)

Located on GRANNY FINLEY BR UT1 in the Southeast Creek watershed, 8-digit code: 02130508.
This stream was visited in the spring on 4/3/2000 and again in the summer on 8/3/2000.

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 Poor - 1.0 / 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 111 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 0 %
Agricultural Land Use 95.7 %
Forested Land Use 4.3 %


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

Physical Stream Habitat
Instream Habitat 1/20 (Poor)
Epifaunal Substrate 1/20 (Poor)
Velocity/Depth Diversity 2/20 (Poor)
Pool Quality
Pool Extent = 19 meters 		2/20 (Poor)
Riffle Quality
Riffle Extent = 0 meters 		0/20 (Poor)
Shading 85 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.
Several measures of instream habitat were considered 'Poor' at this location.


Stream Water Quality:
Water temperature 24.3 ° C
Dissolved oxygen (DO) 2.6 mg/L
Dissolved oxygen levels measured in the stream were very low (2.6 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 6.31
Conductivity 190 µmho/cm
Alkalinity
(acid neutralizing capacity) 		569 µeq/L
Dissolved organic carbon (DOC) 11.9 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 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
No Fish Observed 0
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Fowler's Toad

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Tubificidae Aquatic Worm 32
Caecidotea Isopod 13
Isotomurus Elongate-Bodied Springtail 11
Aedes Mosquito 11
Agabus Predatory Aquatic Beetle 9
Physa Air-Breathing Freshwater Snail 9
Amphipoda Scud 8
Pisidiidae Pill Clam 5
Orthocladiinae Midge 4
Chironomini Non-Biting Midge 3
Paratendipes European Non-Biting Midge 2
Girardia Freshwater Flatworm 1
Synurella Amphipod 1
Dolichopodidae Long-Legged Fly 1
Rheocricotopus Non-Biting Midges 1
Menetus Air Breathing Freshwater Snail 1
Dytiscidae Predaceous Diving Beetle 1
Hydrobius Water Scavenger Beetle 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.