Columbia Basin Fish and Wildlife Program Columbia Basin Fish and Wildlife Program
SOW Report
Contract 23237: 200301000 HISTORIC HABITAT FOOD WEB LINKAGES IN THE ESTUARY
Project Number:
Title:
Historic Habitat Food Web Link
BPA PM:
Stage:
Closed
Area:
Province Subbasin %
Columbia River Estuary Grays 100.00%
Contract Number:
23237
Contract Title:
200301000 HISTORIC HABITAT FOOD WEB LINKAGES IN THE ESTUARY
Contract Continuation:
Previous: Next:
14108: 2003-010-00 HISTORIC HABITAT&FOOD WEB LINKAGES OF JUVENILE SALMON
  • 27969: 2003-010-00 EXP HISTORIC HABITAT FOOD WEB LINK--NOAA
Contract Status:
Closed
Contract Description:
Abstract - The Columbia River estuary serves as an important migration, rearing, and transition environment for juvenile anadromous salmon before they enter the sea. Historical modifications to the estuary, including diking of peripheral wetland and floodplain habitats and regulation of river flows by dams, have reduced salmonid access to shallow rearing habitats and may have eliminated sources of macrodetritus that fuel the estuary's food webs. Although there is emerging evidence that these estuarine changes are limiting juvenile salmon production and life history diversity, lack of information about historic and modern habitat conditions in the estuary, or the ecological consequences of habitat change, undermine existing salmon recovery efforts of the Columbia Basin Fish and Wildlife Program. This proposal addresses specific information needs identified in a recent interdisciplinary assessment of the hydroelectric system's impacts on estuarine habitat conditions for juvenile salmon. The primary elements of this proposal include: (1) retrospective analyses to reconstruct historic bathymetric features and assess effects of climate and river flow on the extent and distribution of shallow water, wetland and tidal-floodplain habitats; (2) computer simulations using a 3-dimensional numerical model to evaluate the sensitivity of salmon rearing opportunities to various historical modifications affecting the estuary (including channel changes, flow regulation, and diking of tidal wetlands and floodplains); and (3) life-history specific information based on present and historic food web sources as determined by stable isotope, microchemistry, and parasitology techniques. From these data and additional modeling simulations that will be selected during an estuarine habitat restoration workshop, we will (4) examine effects of alternative flow-management and habitat-recovery scenarios on habitat opportunity and the estuary's productive capacity for juvenile salmon.
Account Type(s):
Expense
Contract Start Date:
06/01/2005
Contract End Date:
05/31/2006
Current Contract Value:
$127,571
Expenditures:
$127,571

* Expenditures data includes accruals and are based on data through 30-Apr-2024.

BPA COR:
Env. Compliance Lead:
Work Order Task(s):
Contract Type:
Contract (IGC)
Pricing Method:
Cost Reimbursement (CNF)
Click the map to see this Contract’s location details.

No photos have been uploaded yet for this Contract.

Full Name Organization Write Permission Contact Role Email Work Phone
Daniel L. Bottom National Oceanic and Atmospheric Administration Yes Technical Contact dan.bottom@noaa.gov (541) 867-0309
Ed Casillas National Oceanic and Atmospheric Administration Yes Contract Manager edmundo.casillas@noaa.gov (206) 860-3313
Anne Creason Bonneville Power Administration Yes COR amcreason@bpa.gov (503) 230-3859
Rosemary Mazaika Bonneville Power Administration Yes F&W Approver rxmazaika@bpa.gov (503) 230-5869
Kristi Van Leuven Bonneville Power Administration Yes Contracting Officer kjvleuven@bpa.gov (503) 230-3605


Viewing of Work Statement Elements

Deliverable Title WSE Sort Letter, Number, Title Start End Concluded
Deliverable complete A: 157. Reconstruct historic conditions 05/31/2006 05/31/2006
Deliverable complete B: 157. Simulation of habitat change 05/31/2006 05/31/2006
Deliverable complete C: 157. Food web and life history responses to habitat change 05/31/2006 05/31/2006
Deliverable complete D: 162. Implications for estuary restoration 05/31/2006 05/25/2006
Deliverable complete E: 132. Annual Presentation 04/30/2006 02/13/2006
Deliverable complete F: 141. Pisces Reports, Publications List 05/31/2006 09/25/2006
Deliverable complete G: 119. BPA admin requirements 03/01/2006 06/21/2006

Viewing of Implementation Metrics
Viewing of Environmental Metrics Customize

Primary Focal Species Work Statement Elements
Chinook (Oncorhynchus tshawytscha) - All Populations
  • 3 instances of WE 157 Collect/Generate/Validate Field and Lab Data
  • 1 instance of WE 162 Analyze/Interpret Data

Sort WE ID WE Title NEPA NOAA USFWS NHPA Has Provisions Inadvertent Discovery Completed
A 157 Reconstruct historic conditions
B 157 Simulation of habitat change
C 157 Food web and life history responses to habitat change
D 162 Implications for estuary restoration
E 132 Annual Presentation
F 141 Pisces Reports, Publications List
G 119 BPA admin requirements
H 185 Pisces Reports