MBSS Site Summary for: HO-N-001-210-95


Located on DEEP RUN in the Patapsco River L N Br watershed, 8-digit code: 02130906.
This stream was visited in the spring on 3/23/1995 and again in the summer on 6/28/1995.

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 Good - 4.7 / 5.0
Benthic IBI Poor - 2.1 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,204 acres A highly channelized urban stream with concrete banks. An example of a highly channelized urban stream.
Urban Land Use 29.7 %
Agricultural Land Use 21.8 %
Forested Land Use 43.3 %


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 12/20 (Suboptimal)
Velocity/Depth Diversity 14/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		13/20 (Suboptimal)
Riffle Quality 14/20 (Suboptimal)
Shading 68 %
Embeddedness 15 %


Stream Water Quality:
Water temperature 18.8 ° C
Dissolved oxygen (DO) 7.5 mg/L
pH (lab) 7.68
Conductivity 334 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1225 µeq/L
Dissolved organic carbon (DOC) 3 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 17 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Blacknose Dace 152
Rosyside Dace 61
White Sucker 59
Central Stoneroller 50
Tessellated Darter 45
American Eel 42
Creek Chub 25
Fallfish 24
Longnose Dace 20
Swallowtail Shiner 15
Redbreast Sunfish 10
Eastern Mudminnow 3
Pumpkinseed 3
Common Shiner 1
Cutlip Minnow 1
Northern Hogsucker 1
Satinfin Shiner 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Snapping Turtle
Fowler's Toad
Pickerel Frog

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Orthocladius Non-Biting Midges 45
Parachaetocladius Non-Biting Midge 23
Eukiefferiella Non-Biting Midges 18
Diamesa Bloodworm 4
Cryptochironomus Non-Biting Midges 3
Polypedilum Non-Biting Midges 2
Rheocricotopus Non-Biting Midges 2
Ephemerella Sulphur Mayfly 2
Hemerodromia Tiny Fly 1
Parametriocnemus Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Optioservus Riffle Beetle 1
Caecidotea Isopod 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.