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Potential Indices for Future Development

Ocean Indicators Home

2007 Annual Update

Forecast of Adult Returns

Large–scale Ocean and Atmospheric Indicators

•	Pacific Decadal Oscillation (PDO)
•	Multivariate El Nino Southern Oscillation Index (MEI)
•	Basin-Scale Winds

Local and Regional Physical Indicators

•	Sea Surface Temperature Anomalies
•	Coastal Upwelling
•	Physical Spring Transition
•	Deep Water Temperature and Salinity

Local Biological Indicators

•	Copepod Biodiversity
•	Northern Copepod anomalies
•	Copepod Community Structure
•	Biological Spring Transition
•	June Spring Chinook
•	September Coho
•	Zooplankton Species Composition

Indicators Under Development

•	A Second Mode of North Pacific Sea Surface Temperature Variation
•	Phytoplankton Biomass
•	Euphausiid Egg Concentration, Adult Biomass, and Production Rates
•	Interannual Variations in Habitat Area
•	Forage Fish and Pacific Hake Abundance
•	Salmon Predation Index
•	Potential Indices for Future Development

Introduction to Pacific Northwest Oceanography

•	Physical Oceanographic Considerations
•	Climate–scale Physical Variability

Ocean Sampling Methods

•	Hydrography, Zooplankton, and Ichthyoplankton
•	Juvenile Salmon Sampling

Acknowledgements

References

Archive of Updates and Forecasts

Links

Glossary

Potential Indices for Future Development

Remaining indices are in very early stages of development or have not yet begun to be developed. These include:

1.	An index of Columbia River flow

2.	Predictors of coho and spring Chinook jack returns

3.	Indices based on salmon feeding and growth

4.	Indices based on salmon health (diseases and parasites)

5.	Indices that estimate zooplankton production rates, such as Euphausiid growth rates from direct measurement of molting rates Euphausiid growth rates from cohort developmental rates Copepod growth rates from direct measurement of Calanus egg production rates Copepod growth rates from empirical growth equations

last modified 03/11/2008