MBSS Site Summary for: JONE-315-S-2005


Located on North Branch Jones Falls in the Jones Falls watershed, 8-digit code: 02130904.
This stream was visited in the spring on 4/5/2005 and again in the summer on 8/16/2005.

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 Good - 4.3 / 5.0
Benthic IBI Good - 5.0 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 3,820 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.5 %
Agricultural Land Use 39.4 %
Forested Land Use 54.5 %


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

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 15/20 (Suboptimal)
Pool Quality
Pool Extent = 50 meters 		17/20 (Optimal)
Riffle Quality
Riffle Extent = 57 meters 		16/20 (Optimal)
Shading 90 %
Embeddedness 30 %
Several measures of instream habitat were considered 'Optimal' at this location.


Stream Water Quality:
Water temperature 19.7 ° C
Dissolved oxygen (DO) 8 mg/L
pH (lab) 7.66
Conductivity 254 µmho/cm
Alkalinity
(acid neutralizing capacity) 		928.7435 µeq/L
Dissolved organic carbon (DOC) 1.1293 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
Green Sunfish 162
Brown Trout 131
Bluegill 77
Blacknose Dace 57
Longnose Dace 52
White Sucker 30
Creek Chub 21
Cutlip Minnow 18
Tessellated Darter 8
Rosyside Dace 5
Largemouth Bass 4
Rock Bass 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Two-Lined Salamander
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ephemerella Sulphur Mayfly 38
Oulimnius Riffle Beetle 6
Baetis Blue-Winged Olive Mayfly 6
Stenonema Flatheaded Mayfly 5
Amphinemura Spring Stonefly 5
Clinocera Aquatic Dance Fly 4
Prosimulium Black Fly 4
Antocha Crane Fly 4
Rhyacophila Free-Living Caddisfly 3
Orthocladiinae Midge 3
Cheumatopsyche Net-Spinning Caddisfly 3
Parametriocnemus Non-Biting Midges 3
Polypedilum Non-Biting Midges 2
Baetidae Small Minnow Mayfly 2
Ectopria Water Penny Beetle 2
Orthocladius Non-Biting Midges 2
Tipula Crane Fly 2
Chimarra Fingernet Caddisfly 1
Heptageniidae Flathead Mayfly 1
Drunella Blue-Winged Olive Mayfly 1
Crangonyx Amphipod 1
Diplectrona Net-Spinning Caddisfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Nigronia Megaloptera (Dark Fishfly) 1
Limnodrilus Worm 1
Acentrella Tiny Blue-Winged Olive Mayflies 1
Leuctridae Rolledwinged Stonefly 1
Isonychia Slate Drake Mayfly 1
Rheocricotopus Non-Biting Midges 1
Perlodidae Perlodid Stonefly 1
Elmidae Riffle Beetle 1
Optioservus Riffle 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.