MBSS Site Summary for: BRET-450-H-2010

Site Photos

Field photo showing stream conditions at site BRET-450-H-2010-1 (Opens in a new window) Field photo showing stream conditions at site BRET-450-H-2010-2 (Opens in a new window)

Located on McIntosh Run in the Breton Bay watershed, 8-digit code: 02140104.
This stream was visited in the spring on 3/22/2010.

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 Good - 4.4 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 17,422 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 4.9 %
Agricultural Land Use 26.2 %
Forested Land Use 67.9 %


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) 7.075
Alkalinity
(acid neutralizing capacity) 		270.8 µeq/L
Dissolved organic carbon (DOC) 4.1748 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:
Northern Spring Peeper
Northern Two-Lined Salamander

Crayfish:
Orconectes limosus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 14
Neophylax Caddisfly 13
Isoperla Stripetail Stonefly 11
Empididae Dance Fly 10
Psephenus Water Penny 9
Hexatoma Crane Fly 8
Gammarus Amphipod 7
Cheumatopsyche Net-Spinning Caddisfly 5
Acerpenna Tiny Blue-Winged Olive Mayflies 4
Simuliidae Black Fly 4
Goniobasis 3
Haploperla Green Stonefly 3
Lumbriculidae Worm 2
Micrasema 2
Stenelmis Beetle 2
Strophopteryx Early Brown Stonefly 2
Maccaffertium March Brown And Cahill Mayfly 2
Leucrocuta Mayfly 1
Psilotreta Mortarjoint Casemaker Caddisfly 1
Nemouridae Nemourid Stonefly 1
Chimarra Fingernet Caddisfly 1
Heptageniidae Flathead Mayfly 1
Pycnopsyche Great Autumn Brown Sedge Caddisfly 1
Ameletus Combmouthed Minnow Mayfly 1
Caecidotea Isopod 1
Ephemerella Sulphur Mayfly 1
Agapetus Tiny Black Short-Horned Caddisfly 1
Hydropsyche Net-Spinning Caddisfly 1
Rheotanytarsus Non-Biting Midges 1
Stempellinella Non-Biting Midges 1
Tanytarsus Non-Biting Midges 1
Pisidiidae Pill Clam 1
Amphinemura Spring Stonefly 1
Prostoia Spring Stonefly 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.