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Title: Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005

Abstract

This report is the second annual report of a six-year project to evaluate the cumulative effects of habitat restoration projects in the Columbia River Estuary, conducted by Pacific Northwest National Laboratory's Marine Sciences Laboratory, NOAA's National Marine Fisheries Service Pt. Adams Biological Field Station, and the Columbia River Estuary Study Taskforce for the US Army Corps of Engineers. In 2005, baseline data were collected on two restoration sites and two associated reference sites in the Columbia River estuary. The sites represent two habitat types of the estuary--brackish marsh and freshwater swamp--that have sustained substantial losses in area and that may play important roles for salmonids. Baseline data collected included vegetation and elevation surveys, above and below-ground biomass, water depth and temperature, nutrient flux, fish species composition, and channel geometry. Following baseline data collection, three kinds of restoration actions for hydrological reconnection were implemented in several locations on the sites: tidegate replacements (2) at Vera Slough, near the city of Astoria in Oregon State, and culvert replacements (2) and dike breaches (3) at Kandoll Farm in the Grays River watershed in Washington State. Limited post-restoration data were collected: photo points, nutrient flux, water depth and temperature, and channel cross-sections. In subsequentmore » work, this and additional post-restoration data will be used in conjunction with data from other sites to estimate net effects of hydrological reconnection restoration projects throughout the estuary. This project is establishing methods for evaluating the effectiveness of individual projects and a framework for assessing estuary-wide cumulative effects including a protocol manual for monitoring restoration and reference sites.« less

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
900212
Report Number(s):
PNNL-15934
400403209; TRN: US200709%%575
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; BIOMASS; COLUMBIA RIVER; CROSS SECTIONS; ECOSYSTEMS; FISHERIES; GEOMETRY; HABITAT; MONITORING; NUTRIENTS; PLANTS; RIVERS; US CORPS OF ENGINEERS; WATERSHEDS; Columbia River Estuary; US Army Corps of Engineers; salmon; hydroelectric power; habitat restoration

Citation Formats

Diefenderfer, Heida L., Thom, Ronald M., Borde, Amy B., Roegner, G. C., Whiting, Allan H., Johnson, Gary E., Dawley, Earl, Skalski, John R., Vavrinec, John, and Ebberts, Blaine D. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005. United States: N. p., 2006. Web. doi:10.2172/900212.
Diefenderfer, Heida L., Thom, Ronald M., Borde, Amy B., Roegner, G. C., Whiting, Allan H., Johnson, Gary E., Dawley, Earl, Skalski, John R., Vavrinec, John, & Ebberts, Blaine D. Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005. United States. doi:10.2172/900212.
Diefenderfer, Heida L., Thom, Ronald M., Borde, Amy B., Roegner, G. C., Whiting, Allan H., Johnson, Gary E., Dawley, Earl, Skalski, John R., Vavrinec, John, and Ebberts, Blaine D. Wed . "Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005". United States. doi:10.2172/900212. https://www.osti.gov/servlets/purl/900212.
@article{osti_900212,
title = {Evaluating Cumulative Ecosystem Response to Restoration Projects in the Columbia River Estuary, Annual Report 2005},
author = {Diefenderfer, Heida L. and Thom, Ronald M. and Borde, Amy B. and Roegner, G. C. and Whiting, Allan H. and Johnson, Gary E. and Dawley, Earl and Skalski, John R. and Vavrinec, John and Ebberts, Blaine D.},
abstractNote = {This report is the second annual report of a six-year project to evaluate the cumulative effects of habitat restoration projects in the Columbia River Estuary, conducted by Pacific Northwest National Laboratory's Marine Sciences Laboratory, NOAA's National Marine Fisheries Service Pt. Adams Biological Field Station, and the Columbia River Estuary Study Taskforce for the US Army Corps of Engineers. In 2005, baseline data were collected on two restoration sites and two associated reference sites in the Columbia River estuary. The sites represent two habitat types of the estuary--brackish marsh and freshwater swamp--that have sustained substantial losses in area and that may play important roles for salmonids. Baseline data collected included vegetation and elevation surveys, above and below-ground biomass, water depth and temperature, nutrient flux, fish species composition, and channel geometry. Following baseline data collection, three kinds of restoration actions for hydrological reconnection were implemented in several locations on the sites: tidegate replacements (2) at Vera Slough, near the city of Astoria in Oregon State, and culvert replacements (2) and dike breaches (3) at Kandoll Farm in the Grays River watershed in Washington State. Limited post-restoration data were collected: photo points, nutrient flux, water depth and temperature, and channel cross-sections. In subsequent work, this and additional post-restoration data will be used in conjunction with data from other sites to estimate net effects of hydrological reconnection restoration projects throughout the estuary. This project is establishing methods for evaluating the effectiveness of individual projects and a framework for assessing estuary-wide cumulative effects including a protocol manual for monitoring restoration and reference sites.},
doi = {10.2172/900212},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 20 00:00:00 EST 2006},
month = {Wed Dec 20 00:00:00 EST 2006}
}

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