Author: J. R. MaxtedPublisher:
ISBN:
Category : Benthos
Languages : en
Pages :
Book Description
Assessment Framework for Mid-Atlantic Coastal Plain Streams Using Benthic Macroinvertebrates
Author: J. R. MaxtedUse of Benthic Macroinvertebrates to Assess Impacts of Agricultural Land Use in Nontidal Coastal Plain Streams
Author: Diane Katharine BarnesPublisher:
ISBN:
Category :
Languages : en
Pages : 302
Book Description
Proceedings of the NWQMC National Conference
Author: Publisher:
ISBN:
Category : Water quality management
Languages : en
Pages : 720
Book Description
Rapid Bioassessment Protocols for Use in Wadeable Streams and Rivers
Author: United States. Environmental Protection Agency. Office of WaterPublisher:
ISBN:
Category : Water quality bioassay
Languages : en
Pages : 344
Book Description
Integrated Assessment of Running Waters in Europe
Author: Daniel HeringPublisher: Springer Science & Business Media
ISBN: 9400709935
Category : Science
Languages : en
Pages : 381
Book Description
This book provides the focal point of the European Water Framework Directive. offering insight into principles and methodologies of river assessment, covering the whole range from the definition of river typologies to specific problems such as the most appropriate taxonomic resolution and software applications. The text focuses on benthic macroinvertebrates, the taxonomic group most frequently used in bioassessment.
Mid-Atlantic Highlands Streams Assessment
Author: Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 80
Book Description
Rapid Bioassessment of Stream Health
Author: Duncan L. HughesPublisher: CRC Press
ISBN: 1420090933
Category : Science
Languages : en
Pages : 352
Book Description
Tasked by the Clean Water Act to restore and maintain the integrity of their waters, state and local governments must develop systems for assessing the health of the streams within their borders. They quickly find that one size does not fit all when it comes to sampling. Rapid Bioassessment of Stream Health examines the sampling techniques, laborat
Comparison of Fish and Macroinvertebrate Bioassessments from South Carolina Coastal Plain Streams
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Stream bioassessments are often based on a single taxonomic assemblage, such as fishes or macroinvertebrates, with the assumption that this assemblage is representative of other assemblages. However, ecological and physiological differences between taxonomic groups may cause different responses to disturbance and result in different assessment results. In this study, fish and macroinvertebrate bioassessments were conducted concurrently in South Carolina coastal plain streams and compared on the basis of precision, sensitivity, accuracy, and agreement. Fish and macroinvertebrate data were evaluated with previously developed multimetric indices including a modified Index of Biotic Integrity (IBI) based on electrofishing data and a benthic macroinvertebrate multimetric index (HDMI) based on data collected with Hester-Dendy artificial substrates. Benthic macroinvertebrates were also collected from natural substrates for comparative purposes. The IBI was more precise than the HDMI but the average difference between disturbed and reference sites was greater for the HDMI, resulting in equal sensitivity (i.e., ability to measure disturbance in relation to index variability). Regression of the HDMI on the IBI was significant (P>0.0001) but moderate (R2 of 0.39). Agreement between indices was strong for highly disturbed sites but weak for slightly and moderately disturbed sites. Ordination of taxonomic data indicated that fish and macroinvertebrates responded differently to some disturbances regardless of whether macroinvertebates were collected from Hester-Dendy samplers or natural substrates. Disagreement between macroinvertebrate and fish assessments at moderately disturbed sites implies that biotic integrity cannot always be adequately evaluated from a single taxonomic group. Identification of disturbed sites was most accurate when HDMI and IBI results were combined. To improve the accuracy of stream bioassessments, future research should emphasize methods for cost-effectively sampling and integrating information from multiple taxonomic groups.
Water-resources Investigations Report
Author: Assessment of Habitat, Fish Communities, and Streamflow Requirements for Habitat Protection, Ipswich River, Massachusetts, 1998-99
Author: David S. ArmstrongPublisher:
ISBN:
Category : Fish communities
Languages : en
Pages : 86
Book Description