MBSS Site Summary for: LOGU-301-R-2016

Site Photos

Field photo showing stream conditions at site LOGU-301-R-2016_Midpoint looking downstream (Opens in a new window) Field photo showing stream conditions at site LOGU-301-R-2016_Midpoint looking upstream (Opens in a new window)

Located on Long Green Creek in the Lower Gunpowder Falls watershed, 8-digit code: 02130802.
This stream was visited in the spring on 3/23/2016 and again in the summer on 6/14/2016.

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 - 3.7 / 5.0
Benthic IBI Poor - 1.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 5,181 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 14.2 %
Agricultural Land Use 60.2 %
Forested Land Use 22.8 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 16/20 (Optimal)
Pool Quality
Pool Extent = 48 meters 		14/20 (Suboptimal)
Riffle Quality
Riffle Extent = 27 meters 		16/20 (Optimal)
Shading 15 %
Embeddedness 25 %


Stream Water Quality:
pH (lab) 8.05
Alkalinity
(acid neutralizing capacity) 		1628.2 µeq/L
Dissolved organic carbon (DOC) 0.8463 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 12 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
White Sucker 539
Blacknose Dace 535
Longnose Dace 201
Fathead Minnow 129
Rosyside Dace 117
Tessellated Darter 56
American Eel 40
Cutlip Minnow 35
Creek Chub 31
Brown Trout 7
Redbreast Sunfish 3
Bluegill 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern American Toad
Eastern Painted Turtle
Northern Green Frog
Northern Spring Peeper
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Garlic Mustard
Japanese Barberry
Japanese Honeysuckle
Japanese Hops
Japanese Knotweed
Japanese Stiltgrass
Mile-A-Minute
Oriental Bittersweet
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 55
Diamesa Bloodworm 15
Ephemerella Sulphur Mayfly 12
Orthocladiinae Midge 10
Thienemannimyia Group Non-Biting Midges 7
Cricotopus Non-Biting Midges 4
Naididae Aquatic Worm 4
Hydrobaenus Midge 3
Sympotthastia Non-Biting Midges 3
Tanytarsini Non-Biting Midges 2
Microtendipes Non-Biting Midges 2
Dicrotendipes Non-Biting Midges 2
Hydropsyche Net-Spinning Caddisfly 2
Brillia Non-Biting Midges 1
Baetis Blue-Winged Olive Mayfly 1
Saetheria 1
Crangonyx Amphipod 1
Micropsectra Non-Biting Midges 1
Polypedilum Non-Biting Midges 1
Polycentropus Tube Maker 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.