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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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slide1

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

~ 40,000

measurements

per year

slide2

Why Monitoring?

San Francisco Convention & Visitors Bureau Photo

slide3

Thanks

Dave Tucker

USGS

SERL

USGS-RMP

#1 – Measures Benefits of Actions to Improve Water Quality

slide4

“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)

slide6

But … continued monitoring is essential because ….

Dinophysis acuminata

Pseudonitzschia delicastissima

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

slide7

wwrcamnl.wr.usgs.gov/tracel/data

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

slide8

#4 – Identifies Changes in Contaminant Sources

Then, point-source inputs

Now, urban runoff

slide9

Interagency Ecological Program and USGS

#5 – Measures Disturbance by Alien Species

slide10

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.”

slide11

Monitoring of the Bay is not complete

  • Nutrients
  • Phytoplankton Community
  • Zooplankton
  • Ecosystem Processes
  • Benthos