Sturgeon Surgeons

Regional Monitoring Program



05
Oct

Sturgeon Surgeons

“White sturgeon are a popular species, so we want to keep a close eye on contaminants in their tissues.” Recent RMP studies have unearthed a few new interesting things about sturgeon - first that selenium keeps turning up in specimens from certain areas, and second that testing may not have to be deadly. Growing up to 20 feet long and living up to 100 years, today’s living fish have become valuable for the stories that they tell.
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22
Sep

Beacon not Burden

What some might call a regulatory burden on industry, commerce, and American greatness, others might call the road to success. Jay Davis, a serious guy, doesn’t crack a smile when he describes the Bay Area’s Regional Monitoring Program as “a beacon of environmental protection.” It may sound a little over the top, for a PhD who ran the program for more than a decade, but all you have to do is fact check. Ask some of the oil refineries, power plants, cities, engineers, ports, scientists, and regulators who’ve participated in this 25-year old collaborative monitoring program to confirm this result and they all say the same thing. It takes time but saves money. It helps those being regulated deal with...
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15
Aug

The Second Signal: Guadalupe River Flood Monitoring

It was past midnight when Lester McKee pulled the plug. He’d been watching the weather for days on screen, looking for the perfect storm of conditions he needed to send his team out to sample the Guadalupe River in Santa Clara County. He knew there’d been enough rain already to saturate the soil and surpass annual averages. Zooming in on real-time sensors aimed at Santa Clara Valley Water District reservoirs, he could see they were full enough to spill downstream. On NOAA’s weather site, he found that ten inches of rain were projected to fall on the ridgeline of the Santa Cruz Mountains, and the state’s water resources department was estimating peak flows of 9,000 cubic feet per second in...
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15
Aug

Sport Fish Still Not Squeaky Clean

Toxic flame retardants quickly declined in Bay-caught fish, once banned, but legacy mercury persists, according to the most recent year of sampling. As the region’s collaborative monitoring program for Bay contaminants — the RMP — arrives at its 25th birthday, its long-term commitment to consistent data collection for the purposes of targeted environmental management is showing its mettle. The RMP has been catching and testing a wide array of species of popular sport fish, ranging from giant sturgeon to tiny sardines, since 1997. This June the program debuts the latest results. There’s good news, bad news, and no news. PBDEs, those sticky flame retardants linked to cancer, and sprayed on fabrics and couches, have continued their steady decline over the...
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15
Dec

The Dirt on Flea Control

It’s hard to go to the big box pet store and not stumble over the flea control displays. Most pet owners have dabbed or squirted Frontline or Advantage between their cat’s shoulder bones or onto the back of their dog’s neck, but who would guess this same chemical would make its way off our pet’s fur, down the drain, through wastewater treatment, and into the Bay? Apparently all the petting and shedding and subsequent washing of hands, doggies, and floors is moving flea-killing chemicals into our household wastewater, and the treatment plants aren’t getting it out again. “Sewage treatment plants were not designed to treat and remove all the industrial chemicals we are now using in our homes,” says Kelly...
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21
Sep

Nutrient Nuances Modeled

San Francisco Bay is becoming less opaque as the sediments power-washed into the Estuary by miners so long ago gradually disperse. This lets sunlight penetrate deeper into the water, creating more favorable conditions for the kind of problematic algal blooms that can shut down crab fisheries and keep people and their pooches out of the water. Scientists have collaborated on some new computer models, however, that may help them predict where and when nutrients, like nitrogen and phosphate from discharges and runoff, may exacerbate the situation.
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13
Jun

An Eggfull of Estuary

Birds’ eggs don’t lie. Just as thinning eggshells once revealed how DDT was affecting peregrines and pelicans, the eggs themselves are now telling scientists how long-lived some contaminants are in the Estuary and where they are the most problematic.
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13
Mar

Waiting for the Big One

If and when El Niño decides to dump a big storm on the Bay Area — even at 2:00 am on a Saturday night — SFEI’s Lester McKee and Alicia Gilbreath and their team are ready to pull on their parkas and dash out to take water samples.“With plenty of data for normal years, it was important to get data from a more extreme year,” says Phil Trowbridge...
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16
Dec

Unhealthy Fiber in Bay Diet

Millions of tiny pieces of plastic, each less than five millimeters wide, are flowing into San Francisco Bay each day. This minute debris—known as microplastic—is a growing environmental concern for water bodies worldwide as it evades filtration and mimics food consumed by wildlife. A recent study...
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13
Sep

Tracking Tiny Toxins

San Francisco Bay and the region’s other water bodies have an unfortunate legacy of human pollution. But we’re not the only culprits: beyond the mercury and PCBs, the Bay contains toxins produced by phytoplankton—photosynthesizing microorganisms classified as blue-green algae (also known as cyanobacteria), dinoflagellates, and diatoms. Under conditions still not well understood, these tiny organisms secrete chemicals that can enter aquatic food webs and impact human health. Funded by the San Francisco Estuary Institute’s Regional Monitoring Program for Water Quality and the San Francisco Bay Nutrient Management Strategy, researchers are surveying the Bay for microcystin, from the freshwater cyanobacterium Microcystis, and domoic acid, from the marine diatom Pseudo-nitzschia, and trying to account for their presence in the Bay.
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05
Jun

Beyond the Blubber

When John Kucklick talks about interrogation techniques, his subjects aren’t tight-lipped terrorists, they’re bits of blubber. Harbor seal fat is a well-known repository of legacy contaminants from the Bay like PCBs, flame retardants and DDT, but the Regional Monitoring Program for Water Quality in San Francisco Bay (RMP) wanted to know what they might be missing. In 2010, they asked Kucklick, a scientist with access to a national database of 330,000 chemicals and some pretty cutting edge software, to check their blubber for unknowns.
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26
Mar

Copper Effects on Salmon Influenced by Salinity

A decade of research by David Baldwin of NOAA’s North
west Fisheries Science Center 
and other biologists has shown
 that very 
low levels of dissolved copper interfere with a salmon’s ability to detect smells. This can 
be a matter of life or death: 
salmon rely on their olfac
tory sense to avoid predators...
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16
Dec

Beyond the Bag Ban

The other day I found myself turning out the closets for one last plastic bag. But a year into San Francisco’s bag ban, there just aren’t that many plastic shopping bags around our house anymore. All told, 60 percent of municipalities in the four most urbanized Bay Area counties have banned them. It’s all part of a substantial endeavor by regional regulators and 76 local municipalities to stop litter, PCBs and mercury from getting into our creeks and Bay via stormwater runoff.
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03
Sep

Small Fish Test Helps Target PCB Clean Up

Jay Davis didn’t expect much from a pilot test for PCBs in silversides and topsmelt that live on the edges of the San Francisco Bay. The monitoring program he heads only ran the test on these small fish, which rarely grow more than 3-4 inches long, because it was simple to piggyback on an existing study of mercury in the same fish samples. “I thought it wouldn’t really be a big deal,” says Davis, who is lead scientist for the Bay Regional Monitoring Program (RMP). PCBs, a toxicant linked to cancer, accumulate in fat as bigger creatures eat littler ones, so Davis assumed concentrations would be lower in small fish than in larger sport fish. The pilot study revealed the...
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19
Jun

Freeing Fish While Locking Up Mercury

Restoration planners were worried that connecting a former salt evaporation pond with the Bay could introduce long-dormant mercury to the wider ecosystem, and initial studies of levels in water bird eggs and fish reinforced that concern. A set of adjustable gates between the pond and the river allows seasonal closure of the pond and the ability to control the flow. But that raised a new question: would the river’s steelhead run get sidetracked...
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03
Mar

Bay Primed for Pea Soup?

Nutrients could be the next big problem for San Francisco Bay — or make that in the Bay, because they’re already here at levels high enough to have caused trouble elsewhere. But despite its excess nitrogen and phosphorus, the Bay has been free of harmful algal blooms and oxygen-depleted dead zones for decades. Indeed, we’ve been so sure of this immunity to nutrients that most wastewater treatment plants don’t even have to remove them before discharging into the Bay. Recent chinks in the Bay’s resistance to nutrients are now alerting us, however, to get ready in case there’s worse to come.
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