Deschutes Estuary Restoration Team presentation 4-28-11
•Download as PPT, PDF•
2 likes•2,171 views
Sue Patnude (DERT), John Konovsky (Squaxin Island Tribe) and Doug Myers (People for Puget Sound) give a presentation about the benefits of restoring the Deschutes River estuary in Olympia, WA.
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (7)
Similar to Deschutes Estuary Restoration Team presentation 4-28-11
Similar to Deschutes Estuary Restoration Team presentation 4-28-11 (20)
More from Northwest Indian Fisheries Commission
More from Northwest Indian Fisheries Commission (20)
Recently uploaded
Recently uploaded (20)
Deschutes Estuary Restoration Team presentation 4-28-11
- 1. Working to Reconnect the Deschutes River Watershed to its Ancestral Salish Sea Home
- 2. 28 April 2011 Deschutes TMDL Advisory Group Presenters: Sue Patnude , DERT John Konovsky , SIT Doug Myers , PFPS
- 5. The Capitol reflecting in Deschutes River Estuary before Little Hollywood was destroyed (UW Historical Photo).
- 9. Some Facts
- 17. The Science
- 18. PSNERP is… Deschutes Estuary is one of 22 projects soundwide being considered for further design & development
- 21. Phosphorus Overloading Manifests in a Lake, but not an Estuary
- 22. Estuaries Remove Nitrogen through Nitrification and De-nitrification Nitrification and sequestration into plant tissues and sediments Microphytobenthos (benthic diatoms), salt marsh emergent vegetation Sediment surface bacteria on mudflats De-nitrification
- 25. Invasive Species Respond Favorably to Estuary Restoration
- 28. Deschutes Estuary Restoration Team (DERT) You can find us at: http://www.deschutesestuary.org Friend DERT on Facebook at “Deschutes Estuary”
Editor's Notes
- Slide 1: Salmonids are a Squaxin Priority A Deschutes Estuary will benefit more than salmonids naturally spawning and rearing in the Deschutes River A restored estuary will benefit ESA-listed, Puget Sound salmonids like White River spring chinook who “tour” Budd Inlet before outmigrating to the ocean From Scott: Some outmigrating Deschutes fish such as coho rapidly move through the estuary while others like Chinook remain longer. For these fish, estuaries provide a gradual transition from the fresh water environment to salt water. The estuary provides productive feeding areas and predator refuge. Studies have shown that Chinook smolts that spend time in estuaries rather then heading straight to the salt water have higher survival rates. This early period is especially critical in the current era of lower marine survival in the ocean. The more healthy smolts we can put out to the ocean the more adults we’ll get back.
- Slide 2: Watershed Approach Essential, but Not Sufficient Based on best available science: TMDL/CLAMP/PSNERP/SHIRAZ etc. Upstream improvement insufficient to achieve WQS in lake/inlet Direct intervention necessary
- Slide 3: Temperature Cooling upstream flow won’t cool all of Capitol Lake Middle and north basins are shallow and stagnant, and will still exceed standard Creation of estuary will improve circulation and further cool temperature
- Slide 4: Fine Sediment Young geologic system 75% of fine sediment “natural background condition” Therefore, high phosphorus load
- Slide 5: Phosphorus Lake geometry cannot assimilate even natural load Dredged or not, lake will always have excessive algae blooms causing low DO Creation of estuary will improve nutrient dynamics
- Slide 6: DO (@ current nutrient loading) Lake alternative: DO violations persist around Port Peninsula Max DO depletion > 1 mg/L Estuary alternative: DO standard violated in fewer areas of Budd Inlet Max DO depletion < 1 mg/L DO standard met in West Bay (where salmonids predominate) DO violations expand into East Bay Creation of estuary will diminish water quality violations and benefit salmonids
- Slide 7: DO Standard Numeric standards do not apply Same narrative standard for estuary or lake Only 0.2 mg/L reduction allowable from natural background condition