MBSS Site Summary for: GILB-115-R-2001

Site Photos

Field photo showing stream conditions at site GILB-115-R-2001-21 (Opens in a new window) Field photo showing stream conditions at site GILB-115-R-2001-22 (Opens in a new window) Field photo showing stream conditions at site GILB-115-R-2001-23 (Opens in a new window) Field photo showing stream conditions at site GILB-115-R-2001-24 (Opens in a new window)

Located on SMOOTS POND RUN in the Gilbert Swamp watershed, 8-digit code: 02140107.
This stream was visited in the spring on 3/2/2001 and again in the summer on 8/6/2001.

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 - 5.0 / 5.0
Benthic IBI Good - 4.4 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 823 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4 %
Agricultural Land Use 46 %
Forested Land Use 48 %


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

Physical Stream Habitat
Instream Habitat 14/20 (Suboptimal)
Epifaunal Substrate 12/20 (Suboptimal)
Velocity/Depth Diversity 13/20 (Suboptimal)
Pool Quality
Pool Extent = 33 meters 		12/20 (Suboptimal)
Riffle Quality
Riffle Extent = 50 meters 		14/20 (Suboptimal)
Shading 65 %
Embeddedness 98 %
The embeddedness, a measure of silt on the stream bottom, was 98%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 21.7 ° C
Dissolved oxygen (DO) 6.4 mg/L
pH (lab) 6.55
Conductivity 80 µmho/cm
Alkalinity
(acid neutralizing capacity) 		127.8 µeq/L
Dissolved organic carbon (DOC) 3.2 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 15 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Least Brook Lamprey 78
Eastern Mudminnow 38
Tadpole Madtom 34
Tessellated Darter 33
Fallfish 30
American Eel 26
Bluegill 14
Margined Madtom 10
Sea Lamprey 9
Creek Chubsucker 6
Golden Shiner 3
Largemouth Bass 2
Pumpkinseed 2
Redbreast Sunfish 1
Redfin Pickerel 1
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
American Bullfrog
Eastern American Toad
Northern Green Frog
Pickerel Frog
Southern Leopard Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Mile-A-Minute
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Ablabesmyia Non-Biting Midge 15
Siphlonurus Gray Drake Mayfly 13
Conchapelopia Non-Biting Midges 7
Zavrelimyia Non-Biting Midges 7
Leptophlebiidae Pronggilled Mayfly 6
Crangonyx Amphipod 5
Clinotanypus Non-Biting Midge 4
Parametriocnemus Non-Biting Midges 4
Pisidiidae Pill Clam 4
Cricotopus/Orthocladius Midge 3
Stempellinella Non-Biting Midges 3
Synurella Amphipod 3
Tubificidae Aquatic Worm 2
Caecidotea Isopod 2
Bittacomorpha 2
Menetus Air Breathing Freshwater Snail 2
Lumbriculidae Worm 2
Eurylophella Mayfly 1
Heterotrissocladius European Non-Biting Midge 1
Ptilostomis Giant Casemaker Caddisfly 1
Paratanytarsus Non-Biting Midges 1
Procladius Non-Biting Midge 1
Corynoneura 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.