MBSS Site Summary for: OCTO-107-R-2004
Located on BASIN RUN UT 2 in the Octoraro Creek watershed,
8-digit code: 02120203.
This stream was visited in the spring on 3/31/2004 and again in the summer on 7/22/2004.
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.
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Fish IBI
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Poor - 2.3 / 5.0
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Benthic IBI
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Good - 4.3 / 5.0
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Land Use
Land use can provide important information for determining stream health.
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Catchment area
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167 acres
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Cows survey the sampling procedure at this extreme example of a highly agriculturalized site.
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Urban Land Use
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0 %
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Agricultural Land Use
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77 %
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Forested Land Use
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23 %
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Stream Water Quality:
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| Water temperature |
17 ° C
|
| Dissolved oxygen (DO) |
8.4 mg/L
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| pH (lab) |
6.89 |
| Conductivity |
204 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
479.4 µeq/L |
| Dissolved organic carbon (DOC) |
1 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.
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The following 3 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Common name |
Count |
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Blacknose Dace
|
151 |
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American Eel
|
19 |
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Creek Chub
|
4 |
Electrofishing to sample fish communities.
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| American Bullfrog |
| Fowler's Toad |
| Northern Green Frog |
| Northern Red Salamander |
| Northern Two-Lined Salamander |
| Pickerel Frog |
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|
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Hydropsyche |
Net-Spinning Caddisfly
|
24 |
| Ephemerella |
Sulphur Mayfly
|
18 |
| Amphinemura |
Spring Stonefly
|
10 |
| Antocha |
Crane Fly
|
10 |
| Tvetenia |
Non-Biting Midges
|
7 |
| Parametriocnemus |
Non-Biting Midges
|
6 |
| Thienemannimyia group |
Non-Biting Midges
|
5 |
| Diplectrona |
Net-Spinning Caddisfly
|
4 |
| Orthocladius |
Non-Biting Midges
|
3 |
| Eukiefferiella |
Non-Biting Midges
|
3 |
| Leuctridae |
Rolledwinged Stonefly
|
3 |
| Leptophlebiidae |
Pronggilled Mayfly
|
2 |
| Cordulegaster |
Spiketail Dragonfly
|
2 |
| Chrysops |
Deerfly
|
2 |
| Diamesa |
Bloodworm
|
2 |
| Neophylax |
Caddisfly
|
2 |
| Gomphidae |
Clubtail Dragonfly
|
2 |
| Diploperla |
|
2 |
| Physa |
Air-Breathing Freshwater Snail
|
1 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Anchytarsus |
Beetle
|
1 |
| Stenelmis |
Beetle
|
1 |
| Prosimulium |
Black Fly
|
1 |
| Hexatoma |
Crane Fly
|
1 |
| Stenonema |
Flatheaded Mayfly
|
1 |
| Rhyacophila |
Free-Living Caddisfly
|
1 |
| Stenacron |
Mayfly
|
1 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
1 |
| Psilotreta |
Mortarjoint Casemaker Caddisfly
|
1 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
1 |
| Micropsectra |
Non-Biting Midges
|
1 |
| Prostoia |
Spring Stonefly
|
1 |
| Isoperla |
Stripetail Stonefly
|
1 |
| Polycentropus |
Tube Maker Caddisfly
|
1 |
| Lumbriculidae |
Worm
|
1 |
| Baetidae |
Small Minnow Mayfly
|
1 |
| Tanytarsini |
Non-Biting Midges
|
1 |
| Zavrelimyia |
Non-Biting Midges
|
1 |
Sampling with a kick net.
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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.
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