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Water-Quality Measurements in San Francisco Bay – a component of. ~ 40,000 measurements per year. Why Monitoring?. San Francisco Convention & Visitors Bureau Photo. Thanks Dave Tucker. USGS. SERL. USGS-RMP. #1 – Measures Benefits of Actions to Improve Water Quality.

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Water-Quality Measurements in San Francisco Bay – a component of

~ 40,000

measurements

per year


Why Monitoring?

San Francisco Convention & Visitors Bureau Photo


Thanks

Dave Tucker

USGS

SERL

USGS-RMP

#1 – Measures Benefits of Actions to Improve Water Quality


“Nutrient over-enrichment is a significant problem for the coastal regions of the United States…

Of 139 coastal sites .. 44 experiencing symptoms such as low dissolved oxygen, nuisance and toxic algal blooms…

National Coastal Nutrient Management strategy … to provide local decision-makers and those responsible for implementing management activities with the information they will need to determine appropriate source reduction goals and methods at the local level.”

NRC (2000)


#2 – Measures Environmental Condition so Management Priorities can be Established


But … continued monitoring is essential because ….

Dinophysis acuminata

Pseudonitzschia delicastissima

http://www.nwfsc.noaa.gov/hab/anatomy.htm


wwrcamnl.wr.usgs.gov/tracel/data

#3 – Measures Benefits of Reducing Point-Source Inputs of Contaminants


#4 – Identifies Changes in Contaminant Sources

Then, point-source inputs

Now, urban runoff


Interagency Ecological Program and USGS

#5 – Measures Disturbance by Alien Species


303(d) LIST FOR SAN FRANCISCO BAY

Exotic Species

Mercury

Copper

Diazinon

PCB’s

Selenium

Nickel

“The ecological impacts of the Potamocorbula invasion are as dramatic as any documented in the literature, and provided the impetus for the Board’s 303(d) listing decision.”


  • Monitoring of the Bay is not complete

  • Nutrients

  • Phytoplankton Community

  • Zooplankton

  • Ecosystem Processes

  • Benthos


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