Sequential sampling: A cost-effective approach for monitoring benthic macroinvertebrates in environmental impact assessments

Journal Article · Sun Jan 01 00:00:00 EST 1984 · Environ. Manage.; (United States)

DOI:https://doi.org/10.1007/BF01867875· OSTI ID:6367296

Resh, V H; Price, D G

Sequential sampling is a method for monitoring benthic macroinvertebrates that can significantly reduce the number of samples required to reach a decision, and consequently, decrease the cost of benthic sampling in environmental impact assessments. Rather than depending on a fixed number of samples, this analysis cumulatively compares measured parameter values (for example, density, community diversity) from individual samples, with thresholds that are based on specified degrees of precision. In addition to reducing sample size, a monitoring program based on sequential sampling can provide clear-cut decisions as to whether a priori-defined changes in the measured parameter(s) have or have not occurred. As examples, sequential sampling programs have been developed to evaluate the impact of geothermal energy have been developed to evaluate the impact of geothermal energy development on benthic macroinvertebrate diversity at The Geysers, California, and for monitoring the impact of crude oil contamination on chironomid midge (Cricotopus bicinctus (Meigen) and C. mackenziensis Oliver) population densities in the Trail River, Northwest Territories, Canada.

• Research Organization: Division of Entomology and Parasitology, University of California, Berkeley, California
• OSTI ID: 6367296
• Journal Information: Environ. Manage.; (United States), Vol. 8:1
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
15 GEOTHERMAL ENERGY
54 ENVIRONMENTAL SCIENCES
BENTHOS
MONITORING
SAMPLING
GEOTHERMAL WELLS
ENVIRONMENTAL IMPACTS
INVERTEBRATES
OIL SPILLS
COST
DECISION MAKING
GEYSERS GEOTHERMAL FIELD
NORTHWEST TERRITORIES
POPULATION DENSITY
WATER POLLUTION
ANIMALS
AQUATIC ORGANISMS
CANADA
GEOTHERMAL FIELDS
NORTH AMERICA
POLLUTION
WELLS
020900* - Petroleum- Environmental Aspects
150600 - Geothermal Energy- Environmental Aspects
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)