MBSS Site Summary for: BRET-101-R-2007
Located on Moll Dyers Run in the Breton Bay watershed,
8-digit code: 02140104.
This stream was visited in the spring on 3/27/2007 and again in the summer on 6/21/2007.
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 - 3.3 / 5.0
|
|
Benthic IBI
|
Good - 5.0 / 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
|
1,440 acres
|
An example of a forested stream.
|
|
Urban Land Use
|
5.3 %
|
|
Agricultural Land Use
|
37.5 %
|
|
Forested Land Use
|
50.3 %
|
Stream Water Quality:
|
| Water temperature |
20.4 ° C
|
| Dissolved oxygen (DO) |
7.4 mg/L
|
| pH (lab) |
6.68 |
| Conductivity |
86 µmho/cm
|
Alkalinity
(acid neutralizing capacity)
|
159.6 µeq/L |
| Dissolved organic carbon (DOC) |
2.13 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.
|
 |
| American Bullfrog |
| Eastern Cricket Frog |
| Fowler's Toad |
| Gray Treefrog |
| Northern Green Frog |
| Northern Spring Peeper |
| Northern Two-Lined Salamander |
| Southern Leopard Frog |
| Spotted Salamander |
| Japanese Honeysuckle |
| Japanese Stiltgrass |
|
|
|
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
|
| Genus/Family |
Common Name |
Count |
| Acerpenna |
Tiny Blue-Winged Olive Mayflies
|
14 |
| Eurylophella |
Mayfly
|
8 |
| Menetus |
Air Breathing Freshwater Snail
|
7 |
| Calopteryx |
Damselfly
|
6 |
| Corduliidae |
Emerald Dragonfly
|
6 |
| Cheumatopsyche |
Net-Spinning Caddisfly
|
6 |
| Thienemannimyia group |
Non-Biting Midges
|
6 |
| Trissopelopia |
Non-Biting Midges
|
4 |
| Ancyronyx |
Spider Riffle Beetle
|
4 |
| Ablabesmyia |
Non-Biting Midge
|
4 |
| Musculium |
Fingernail Clam
|
4 |
| Stenonema |
Flatheaded Mayfly
|
3 |
| Prostoma |
Freshwater Nemertean (Ribbon Worm)
|
3 |
| Dubiraphia |
Riffle Beetle
|
2 |
| Nigronia |
Megaloptera (Dark Fishfly)
|
2 |
| Probezzia |
Biting Midges
|
2 |
| Heteroplectron |
Caddisfly
|
1 |
| Hagenius |
Clubtail Dragonfly
|
1 |
| Hydrobaenus |
Midge
|
1 |
| Pisidiidae |
Pill Clam
|
1 |
| Leptophlebiidae |
Pronggilled Mayfly
|
1 |
| Macronychus |
Riffle Beetle
|
1 |
| Microcylloepus |
Riffle Beetle
|
1 |
| Capniidae |
Small Winter Stonefly
|
1 |
| Boyeria |
Spotted Darner Dragonfly
|
1 |
| Limnodrilus |
Worm
|
1 |
| Eccoptura |
Yellow Stone Stonefly
|
1 |
| Pycnopsyche |
Great Autumn Brown Sedge Caddisfly
|
1 |
| Caecidotea |
Isopod
|
1 |
| Tubificidae |
Aquatic Worm
|
1 |
| Helichus |
Beetle
|
1 |
| Helocordulia |
|
1 |
| Macromia |
|
1 |
| Parachaetocladius |
Non-Biting Midge
|
1 |
| Unniella |
Non-Biting Midge
|
1 |
| Brillia |
Non-Biting Midges
|
1 |
| Nanocladius |
Non-Biting Midges
|
1 |
| Orthocladius |
Non-Biting Midges
|
1 |
| Polypedilum |
Non-Biting Midges
|
1 |
| Rheocricotopus |
Non-Biting Midges
|
1 |
| Rheosmittia |
Non-Biting Midges
|
1 |
| Tanytarsus |
Non-Biting Midges
|
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)
