MBSS Site Summary for: CA-S-210-230-97


Located on BATTLE CR in the Patuxent River lower watershed, 8-digit code: 02131101.
This stream was visited in the spring on 3/7/1997 and again in the summer on 7/9/1997.

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 - 3.9 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 1,611 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 13.6 %
Agricultural Land Use 29.2 %
Forested Land Use 56.6 %


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) 6.8
Alkalinity
(acid neutralizing capacity) 		324.8 µeq/L
Dissolved organic carbon (DOC) 2.5 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:
American Bullfrog
Northern Green Frog
Northern Watersnake
Pickerel Frog

Crayfish:
Orconectes limosus

Exotic Plants:
No exotic plants noted.
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Pisidium Freshwater Pea (Pill) Clam 25
Ablabesmyia Non-Biting Midge 22
Stempellinella Non-Biting Midges 21
Conchapelopia Non-Biting Midges 9
Siphlonurus Gray Drake Mayfly 7
Zavrelimyia Non-Biting Midges 4
Paratendipes European Non-Biting Midge 2
Apsectrotanypus Non-Biting Midges 2
Culicoides 2
Physa Air-Breathing Freshwater Snail 2
Gammarus Amphipod 2
Leptophlebia Pronggilled Mayfly 2
Polycentropus Tube Maker Caddisfly 2
Rheocricotopus Non-Biting Midges 2
Gyrinus Whirlygig Beetle 1
Anchytarsus Beetle 1
Gomphus Clubtail Dragonfly 1
Calopteryx Damselfly 1
Haploperla Green Stonefly 1
Caecidotea Isopod 1
Nigronia Megaloptera (Dark Fishfly) 1
Procladius Non-Biting Midge 1
Limnephilidae Northern Casemaker Caddisfly 1
Cryptochironomus Non-Biting Midges 1
Polypedilum 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.