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California Water Science Center Images

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Cal Poly President Jeffrey Armstrong gives opening remarks.
Cal Poly President Jeffrey Armstrong gives opening remarks.
Cal Poly President Jeffrey Armstrong gives opening remarks.
Cal Poly President Jeffrey Armstrong gives opening remarks.

Cal Poly President Jeffrey Armstrong gives opening remarks at Tech Park II facility grand opening.

Pacific Golden-Plover
Pacific Golden-Plover in Alaska
Pacific Golden-Plover in Alaska
Pacific Golden-Plover in Alaska

A Pacific Golden-Plover in Alaska. Photograph by Daniel R. Ruthrauff, USGS, Public Domain.

A Pacific Golden-Plover in Alaska. Photograph by Daniel R. Ruthrauff, USGS, Public Domain.

West Sacramento Projects Office
West Sacramento Projects Office
West Sacramento Projects Office
West Sacramento Projects Office

This is a photograph of the outside of USGS California Water Science Center West Sacramento Projects Office.

This is a photograph of the outside of USGS California Water Science Center West Sacramento Projects Office.

A drone view of where scientists with the U.S. Geological Survey gathered shellfish samples collected at Martinez Harbor, Con
A drone view of Martinez Harbor, Contra Costa County.
A drone view of Martinez Harbor, Contra Costa County.
A drone view of Martinez Harbor, Contra Costa County.

A drone view of where scientists with the U.S. Geological Survey gathered shellfish samples collected at Martinez Harbor, Contra Costa County.

A drone view of where scientists with the U.S. Geological Survey gathered shellfish samples collected at Martinez Harbor, Contra Costa County.

Scientist packs up gear used to gather shellfish samples
Scientist packs up gear used to gather shellfish samples
Scientist packs up gear used to gather shellfish samples
Scientist packs up gear used to gather shellfish samples

Amelia Ayers, a Physical Scientist with the U.S. Geological Survey, packs up the equipment used to gather shellfish samples collected at Martinez Harbor, Contra Costa County, California. The shellfish trap and composite samplers are attached to a rope with a heavy weight and deployed in the water. It is retrieved once or twice a month depending on the season.

Amelia Ayers, a Physical Scientist with the U.S. Geological Survey, packs up the equipment used to gather shellfish samples collected at Martinez Harbor, Contra Costa County, California. The shellfish trap and composite samplers are attached to a rope with a heavy weight and deployed in the water. It is retrieved once or twice a month depending on the season.

Research team arrive at Martinez Harbor
USGS research team arrives at sampling site
USGS research team arrives at sampling site
USGS research team arrives at sampling site

Amelia Ayers, Zoë Siman‑Tov, of the USGS and Lexi Yokomizo of Restore the Delta arrive at Martinez Harbor in Contra Costa County, California to sample shellfish and test them for toxins found in Harmful Algal Blooms (HABs).

Amelia Ayers, Zoë Siman‑Tov, of the USGS and Lexi Yokomizo of Restore the Delta arrive at Martinez Harbor in Contra Costa County, California to sample shellfish and test them for toxins found in Harmful Algal Blooms (HABs).

Shrimp being tested for toxins found in harmful algal blooms.
Shrimp being tested for toxins found in harmful algal blooms.
Shrimp being tested for toxins found in harmful algal blooms.
Shrimp being tested for toxins found in harmful algal blooms.

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs). P. macrodactylus shrimp is an invasive shrimp found in the region and commonly caught in the USGS traps.

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs). P. macrodactylus shrimp is an invasive shrimp found in the region and commonly caught in the USGS traps.

A drone view of where scientists with the U.S. Geological Survey gathered shellfish samples collected at Martinez Harbor, Con
A drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.
A drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.
Drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.
Drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.
Drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.
Drone view of where scientists gathered shellfish samples at Martinez Harbor, Contra Costa County.

A drone view of where scientists with the U.S. Geological Survey and Restore the Delta gathered shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Gathering and measuring shellfish samples collected at Martinez Harbor, Contra Costa County, California
Gathering and measuring shellfish samples collected at Martinez Harbor, Contra Costa County, California
Gathering and measuring shellfish samples collected at Martinez Harbor, Contra Costa County, California
Gathering and measuring shellfish samples collected at Martinez Harbor, Contra Costa County, California

Zoë Siman-Tov (left), a Hydrologic Technician with the U.S. Geological Survey, and Amelia Ayers (center), a Physical Scientist with USGS, gather and measure shellfish samples collected at Martinez Harbor, Contra Costa County. The shellfish trap is baited and deployed for two days in the water before being retrieved.

Zoë Siman-Tov (left), a Hydrologic Technician with the U.S. Geological Survey, and Amelia Ayers (center), a Physical Scientist with USGS, gather and measure shellfish samples collected at Martinez Harbor, Contra Costa County. The shellfish trap is baited and deployed for two days in the water before being retrieved.

Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).
Shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Scientists with the U.S. Geological Survey and Restore the Delta gather shellfish samples collected at Martinez Harbor, Contra Costa County. The shrimp are tested for levels of toxins found in Harmful Algal Blooms (HABs).

Calipers being used to measure shrimp
Calipers being used to measure shrimp
Calipers being used to measure shrimp
Calipers being used to measure shrimp

Scientists with the U.S. Geological Survey and Restore the Delta measure shellfish samples collected at Martinez Harbor, Contra Costa County. All shellfish are collected, species identified, and individuals measured with calipers. These specimens will all be sent to a laboratory to test their tissue for toxins caused by Harmful Algal Blooms.

Scientists with the U.S. Geological Survey and Restore the Delta measure shellfish samples collected at Martinez Harbor, Contra Costa County. All shellfish are collected, species identified, and individuals measured with calipers. These specimens will all be sent to a laboratory to test their tissue for toxins caused by Harmful Algal Blooms.

Calipers being used to measure shrimp
Calipers being used to measure shrimp collected from Martinez Harbor, Contra Costa County, California
Calipers being used to measure shrimp collected from Martinez Harbor, Contra Costa County, California
Calipers being used to measure shrimp collected from Martinez Harbor, Contra Costa County, California

Scientists with the U.S. Geological Survey and Restore the Delta measure shellfish samples collected at Martinez Harbor, Contra Costa County. All shellfish are collected, species identified, and individuals measured with calipers. The shrimp are then tested for levels of toxins found in Harmful Algal Blooms (HABs).

Scientists with the U.S. Geological Survey and Restore the Delta measure shellfish samples collected at Martinez Harbor, Contra Costa County. All shellfish are collected, species identified, and individuals measured with calipers. The shrimp are then tested for levels of toxins found in Harmful Algal Blooms (HABs).

Zoë Siman-Tov (left) and Amelia Ayers gather shellfish samples collected at Martinez Harbor in Contra Costa County, CA.
USGS scientists collecting shellfish samples
USGS scientists collecting shellfish samples
USGS scientists collecting shellfish samples

Zoë Siman-Tov (left) and Amelia Ayers, both with the U.S. Geological Survey, analyze shellfish samples collected at Martinez Harbor, Contra Costa County, CA. Shellfish (shrimp, crab, or crayfish) caught in the traps are analyzed for toxins found in Harmful Algal Blooms (HABs). 

Zoë Siman-Tov (left) and Amelia Ayers, both with the U.S. Geological Survey, analyze shellfish samples collected at Martinez Harbor, Contra Costa County, CA. Shellfish (shrimp, crab, or crayfish) caught in the traps are analyzed for toxins found in Harmful Algal Blooms (HABs). 

Mojave River during high flow
Mojave River during high flow
Mojave River during high flow
Mojave River during high flow

This picture shows the Mojave River in southern California during a high flow stage.

This picture shows the Mojave River in southern California during a high flow stage.

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