MBSS Site Summary for: BRET-115-R-2002

Site Photos

Field photo showing stream conditions at site BRET-115-R-2002-381 (Opens in a new window) Field photo showing stream conditions at site BRET-115-R-2002-382 (Opens in a new window) Field photo showing stream conditions at site BRET-115-R-2002-383 (Opens in a new window) Field photo showing stream conditions at site BRET-115-R-2002-567 (Opens in a new window)

Located on MOLL DYERS RUN UT in the Breton Bay watershed, 8-digit code: 02140104.
This stream was visited in the spring on 3/11/2002 and again in the summer on 6/26/2002.

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 N R
Benthic IBI Fair - 3.6 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 79 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 8 %
Agricultural Land Use 14 %
Forested Land Use 78 %


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

Physical Stream Habitat
Instream Habitat not sampled
Epifaunal Substrate not sampled
Velocity/Depth Diversity not sampled
Pool Quality not sampled
Riffle Quality not sampled
Shading not sampled
Embeddedness not sampled


Stream Water Quality:
pH (lab) 5.32
Alkalinity
(acid neutralizing capacity) 		33.3 µeq/L
Dissolved organic carbon (DOC) 3.6 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:
Fish data is unavailable or no fish observed.

Amphibians and Reptiles:
No amphibians and reptiles noted.

Crayfish:
No crayfish noted.

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Synurella Amphipod 42
Conchapelopia Non-Biting Midges 7
Heterotrissocladius European Non-Biting Midge 6
Caecidotea Isopod 6
Zavrelimyia Non-Biting Midges 5
Polycentropus Tube Maker Caddisfly 5
Corynoneura Non-Biting Midges 4
Apsectrotanypus Non-Biting Midges 3
Hydrobaenus Midge 2
Sialis Alderfly 2
Crangonyx Amphipod 2
Heteroplectron Caddisfly 2
Cricotopus Non-Biting Midges 2
Micropsectra Non-Biting Midges 2
Leptophlebia Pronggilled Mayfly 2
Tribelos Non-Biting Midges 2
Lumbriculidae Worm 2
Hydroporus Water Beetle 1
Microtendipes Non-Biting Midges 1
Tanypodinae Non-Biting Midges 1
Pseudolimnophila Crane Fly 1
Isotomurus Elongate-Bodied Springtail 1
Corduliidae Emerald Dragonfly 1
Stygobromus Amphipod 1
Ceratopogon Biting Midge 1
Probezzia Biting Midges 1
Unniella Non-Biting Midge 1
Somatochlora 1
Nigronia Megaloptera (Dark Fishfly) 1
Ptilostomis Giant Casemaker Caddisfly 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.