Systems. Dead Zones. Dead Zones. Dead Zones – low concentrations of dissolved oxygen = hypoxia below 5 ppm movement slows, below 2 ppm organisms that can will leave, below 0.2 ppm black sediments with anerobic bacteria. Examples: Lousiana coast, Hood Canal, San Diego/Mexico area.
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Puget Sound Action Team
Corrective Action and Education group focuses on preliminary assessment, corrective actions and demonstration projects that will help to improve levels of dissolved oxygen in Hood Canal. This group educates and involves residents in ways they can help improve the quality of water the Canal.
IAM is a three-year study to use marine, freshwater and biota monitoring data and a computer model to quantify the role the various natural processes and human actions are playing to control the concentrations of dissolved oxygen in Hood Canal and test corrective action scenarios.Systems - Organizational
Hood Canal Dissolved Oxygen Program
Evaluate potential corrective actions for the low dissolved oxygen condition.
OPEN WATER SYSTEM assessment, corrective actions and demonstration projects that will help to improve levels of dissolved oxygen in Hood Canal. This group educates and involves residents in ways they can help improve the quality of water the Canal.
Tertiary Consumer - Orca
Secondary Consumer - Salmon (chinook high in PCB) Seals, sea lions
Primary Consumer – forage fish (herring, surf smelt)
Producer - phytoplankton
DECOMPOSERSHood Canal Food Chains