MBSS Site Summary for: MAGO-105-B-2008
Located on MAGOTHY RIVER in the Magothy River watershed,
8-digit code: 02131001.
This stream was visited in the spring on 3/10/2008 and again in the summer on 6/13/2008.
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 - 1.7 / 5.0
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Benthic IBI
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Good - 4.1 / 5.0
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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.)
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Catchment area
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1,648 acres
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An example of a highly channelized urban stream.
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Urban Land Use
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36.9 %
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Agricultural Land Use
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10 %
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Forested Land Use
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51.2 %
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Stream Water Quality:
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| Water temperature |
21.5 ° C
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| Dissolved oxygen (DO) |
7.5 mg/L
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| pH (lab) |
6.58 |
| Conductivity |
367 µmho/cm
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Alkalinity
(acid neutralizing capacity)
|
392.5 µeq/L |
| Dissolved organic carbon (DOC) |
3.317 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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Eastern Mudminnow
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14 |
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Bluegill
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10 |
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American Eel
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6 |
Electrofishing to sample fish communities.
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| Northern Green Frog |
| Pickerel Frog |
| Orconectes limosus |
| Procambarus clarkii |
| English Ivy |
| Garlic Mustard |
| Japanese Honeysuckle |
| Privet |
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Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
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| Genus/Family |
Common Name |
Count |
| Parametriocnemus |
Non-Biting Midges
|
15 |
| Crangonyx |
Amphipod
|
11 |
| Diplectrona |
Net-Spinning Caddisfly
|
9 |
| Rheotanytarsus |
Non-Biting Midges
|
8 |
| Paraphaenocladius |
Non-Biting Midges
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7 |
| Thienemannimyia Group |
Non-Biting Midges
|
7 |
| Synurella |
Amphipod
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6 |
| Hyalella |
Amphipod
|
5 |
| Simulium |
Black Fly
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5 |
| Polycentropus |
Tube Maker Caddisfly
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5 |
| Lype |
Net Tube Caddisfly
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4 |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
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4 |
| Tanypodinae |
Non-Biting Midges
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3 |
| Gomphidae |
Clubtail Dragonfly
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3 |
| Corynoneura |
Non-Biting Midges
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3 |
| Micropsectra |
Non-Biting Midges
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2 |
| Parachaetocladius |
Non-Biting Midge
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2 |
| Apsectrotanypus |
Non-Biting Midges
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2 |
| Molanna |
|
2 |
| Pisidiidae |
Pill Clam
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2 |
| Leptophlebiidae |
Pronggilled Mayfly
|
1 |
| Oulimnius |
Riffle Beetle
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1 |
| Boyeria |
Spotted Darner Dragonfly
|
1 |
| Polypedilum |
Non-Biting Midges
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1 |
| Taeniopteryx |
Winter Stonefly
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1 |
| Pilaria |
|
1 |
| Leptoceridae |
Longhorned Casemaker Caddisfly
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1 |
| Nigronia |
Megaloptera (Dark Fishfly)
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1 |
| Stilocladius |
Midge
|
1 |
| Brillia |
Non-Biting Midges
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1 |
| Enchytraeidae |
Aquatic Worm
|
1 |
| Stenelmis |
Beetle
|
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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