MBSS Site Summary for: DEER-209-X-2005


Located on Mill Brook Branch in the Deer Creek watershed, 8-digit code: 02120202.
This stream was visited in the spring on 8/25/2005 and again in the summer on 8/25/2005.

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 N R
Benthic IBI Fair - 3.3 / 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 2,051 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 %
Agricultural Land Use 66 %
Forested Land Use 29 %


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

Physical Stream Habitat
Instream Habitat 12/20 (Suboptimal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 9/20 (Marginal)
Pool Quality
Pool Extent = 38 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 37 meters 		12/20 (Suboptimal)
Shading 45 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 20.4 ° C
Dissolved oxygen (DO) 11.5 mg/L
Conductivity 237 µmho/cm

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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
American Bullfrog
Northern Two-Lined Salamander
Northern Watersnake

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 28
Baetis Blue-Winged Olive Mayfly 19
Ephemerella Sulphur Mayfly 18
Rheosmittia Non-Biting Midges 10
Chironomidae Non-Biting Midge 8
Dicrotendipes Non-Biting Midges 5
Polypedilum Non-Biting Midges 3
Thienemanniella Non-Biting Midges 3
Amphinemura Spring Stonefly 3
Orthocladiinae Midge 2
Cheumatopsyche Net-Spinning Caddisfly 1
Diamesinae Non-Biting Midges 1
Perlidae Common Stonefly 1
Antocha Crane Fly 1
Empididae Dance Fly 1
Stenonema Flatheaded Mayfly 1
Eurylophella Mayfly 1
Hydroptila Microcaddisfly 1
Tvetenia Non-Biting Midges 1
Leuctridae Rolledwinged Stonefly 1
Tanypodinae Non-Biting Midges 1
Simulium Black Fly 1
Acentrella Tiny Blue-Winged Olive Mayflies 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.