MBSS Site Summary for: HA-P-138-302-97


Located on BROAD CR in the Broad Creek watershed, 8-digit code: 02120205.
This stream was visited in the spring on 3/7/1997 and again in the summer on 6/11/1997.

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 - 2.7 / 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 18,207 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 0.5 %
Agricultural Land Use 62.5 %
Forested Land Use 35.7 %


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

Physical Stream Habitat
Instream Habitat 16/20 (Optimal)
Epifaunal Substrate 15/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = meters 		15/20 (Suboptimal)
Riffle Quality 5/20 (Poor)
Shading 45 %
Embeddedness 95 %
The embeddedness, a measure of silt on the stream bottom, was 95%. This is relatively high, and may exclude some biota.


Stream Water Quality:
Water temperature 17 ° C
Dissolved oxygen (DO) 9.4 mg/L
pH (lab) 7.29
Conductivity 152 µmho/cm
Alkalinity
(acid neutralizing capacity) 		382.1 µeq/L
Dissolved organic carbon (DOC) 1.3 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 25 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Bluntnose Minnow 332
Central Stoneroller 221
Spottail Shiner 192
Creek Chub 86
White Sucker 78
Satinfin Shiner 57
Tessellated Darter 48
Fallfish 43
Green Sunfish 32
Blacknose Dace 14
Northern Hogsucker 13
River Chub 9
Rosyside Dace 9
Longnose Dace 6
Margined Madtom 5
Bluegill 3
Cutlip Minnow 3
Rosyface Shiner 2
Spotfin Shiner 2
Brown Bullhead 1
Common Shiner 1
Pumpkinseed 1
Redbreast Sunfish 1
Smallmouth Bass 1
Yellow Bullhead 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Ratsnake
Northern Watersnake
Pickerel Frog

Crayfish:
Orconectes virilis

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Cricotopus/Orthocladius Midge 53
Ephemerella Sulphur Mayfly 8
Hydrobaenus Midge 7
Parametriocnemus Non-Biting Midges 7
Polypedilum Non-Biting Midges 6
Leptophlebia Pronggilled Mayfly 3
Stenonema Flatheaded Mayfly 3
Cryptochironomus Non-Biting Midges 2
Hemerodromia Tiny Fly 1
Eurylophella Mayfly 1
Crangonyx Amphipod 1
Chelifera Aquatic Dance Fly 1
Cheumatopsyche Net-Spinning Caddisfly 1
Brillia Non-Biting Midges 1
Isonychia Slate Drake Mayfly 1
Prostoia Spring Stonefly 1
Sweltsa Stonefly 1
Thienemannimyia Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 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.