MBSS Site Summary for: LIGU-306-R-2001
Located on LITTLE GUNPOWDER FALLS in the Little Gunpowder Falls watershed,
8-digit code: 02130804.
This stream was visited in the spring on 3/6/2001 and again in the summer on 7/16/2001.
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 - 4.3 / 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
|
1,273 acres
|
Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
|
|
Urban Land Use
|
20 %
|
|
Agricultural Land Use
|
42 %
|
|
Forested Land Use
|
38 %
|
Stream Water Quality:
|
| Water temperature |
19.4 ° C
|
| Dissolved oxygen (DO) |
9 mg/L
|
| pH (lab) |
7.6 |
| Conductivity |
160 µmho/cm
|
Alkalinity
(acid neutralizing capacity)
|
492.8 µeq/L |
| Dissolved organic carbon (DOC) |
2.5 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.
|
 |
| Eastern American Toad |
| Eastern Box Turtle |
| Northern Green Frog |
| Northern Two-Lined Salamander |
| Pickerel Frog |
| Japanese Stiltgrass |
| Mile-A-Minute |
| Multiflora Rose |
|
|
|
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
|
| Genus/Family |
Common Name |
Count |
| Prostoia |
Spring Stonefly
|
14 |
| Ephemerella |
Sulphur Mayfly
|
14 |
| Strophopteryx |
Early Brown Stonefly
|
10 |
| Neophylax |
Caddisfly
|
9 |
| Heptageniidae |
Flathead Mayfly
|
8 |
| Parametriocnemus |
Non-Biting Midges
|
7 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
6 |
| Hydropsyche |
Net-Spinning Caddisfly
|
6 |
| Tvetenia |
Non-Biting Midges
|
5 |
| Oemopteryx |
Stonefly
|
5 |
| Paratanytarsus |
Non-Biting Midges
|
4 |
| Antocha |
Crane Fly
|
3 |
| Clinocera |
Aquatic Dance Fly
|
3 |
| Lumbriculidae |
Worm
|
3 |
| Leucotrichia |
|
2 |
| Taeniopteryx |
Winter Stonefly
|
2 |
| Pisidiidae |
Pill Clam
|
2 |
| Optioservus |
Riffle Beetle
|
2 |
| Isonychia |
Slate Drake Mayfly
|
1 |
| Ferrissia |
Small Air-Breathing Freshwater Limpets
|
1 |
| Parachaetocladius |
Non-Biting Midge
|
1 |
| Naididae |
Aquatic Worm
|
1 |
| Simuliidae |
Black Fly
|
1 |
| Tipula |
Crane Fly
|
1 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
|
1 |
| Acroneuria |
Golden Stoneflies
|
1 |
| Glossosoma |
Little Black Caddisfly
|
1 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
1 |
| Psephenus |
Water Penny
|
1 |
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.
(Opens in a new window)
(Opens in a new window)
