Science Inventory
You are here:
EPA Home » Science Inventory » ECOREGION BIOASSESSMENT PILOT PROJECT BY WASHINGTON DEPARTMENT OF ECOLOGY
ECOREGION BIOASSESSMENT PILOT PROJECT BY WASHINGTON DEPARTMENT OF ECOLOGY
Description:
Washington Department of Ecology conducted an ecoregion bioassessment project to evaluate the usefulness of a monitoring protocol to detect water resource impacts due to forest practices. Funded by the Timber-Fish-Wildlife Program, Phase I of the project concentrated on defining a reference condition for three ecoregions in the state: Puget Lowlands, Cascades, and Columbia Basin. The planned second phase will address streams that experience a gradient of forest practice impacts. Reference site locations were chosen which best represented habitat conditions in each ecoregion. Eighteen sites were sampled (six stream reaches per ecoregion). Habitat assessment was completed from Nov. 1990 to Aug. 1991. Benthic macroinvertebrates were collected during each of four consecutive seasons from fall 1990 to summer 1991. Physical and chemical surface water parameters were characterized monthly in each ecoregion between Nov. 1990 and Aug. 1991.
Record Details:
Record Type:DATA SET
Product Published Date:08/01/1991
Record Last Revised:12/10/2002
Record ID:
3520
Keywords:
-
-
,
Geographic Areas:
Title
:ECOREGION BIOASSESSMENT PILOT PROJECT BY WASHINGTON DEPARTMENT OF ECOLOGY
Version
:1.0
North Boundary
:48.8833
South Boundary
:45.85
East Boundary
:-117.3167
West Boundary
:-123.3333
State
:WA
Quality Assurance:
Title
:ECOREGION BIOASSESSMENT PILOT PROJECT BY WASHINGTON DEPARTMENT OF ECOLOGY
Data Use & Constraints
:Qualitative habitat scoring was replicated by two evaluators at each reference site on a seasonal basis. Duplicate benthic macroinvertebrate samples were collected from similar combinations of habitat types (riffle and run) at each reference station. Duplicate water samples were collected from one station in each of two ecoregions every month to achieve ten percent replication overall. Deionized water blanks were also analyzed periodically. Field instruments were calibrated regularly. No information is available regarding QA/QC procedures for data entry.