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By now, Sacramento chinooks have lost an estimated 70 percent of their original spawning habitat in central California. Dams did the most damage, drying up riverbeds and cutting off access to mountain spawning streams. Shasta Dam, completed in 1945, is the nation's second largest, far too big for the fish ladders that in some places help salmon reach their spawning grounds. Some populations barely survived. There are plenty of complaints against hatcheries—the main one is that artificially producing millions of fish masks deep ecological problems—but without the hatcheries, the Sacramento run could hardly have rebounded from industrialization the way it did. The fall run, probably numbering about a million at its peak, was until very recently holding steady at a quarter or more of that level, enough to keep the West Coast salmon industry afloat.
Then came this summer's calamity. The official list of possible causes is more than 40 items long, ranging from bridge construction in migration areas to a surging population of Humboldt squid, grabby predators that may or may not have a taste for chinook. Scientists are looking back to 2005, when the fish that should be returning to the river now would have been sea-bound juveniles, small and vulnerable. There were poor ocean conditions off the West Coast that spring. A shift in weather patterns—possibly related to global warming—delayed the seasonal upwelling of cold, nutrient-rich water that supports the base of the marine food chain. As a result, "everything that was expecting something to eat in May died," including juvenile salmon, said Bill Peterson, a fisheries oceanographer with the National Oceanic and Atmospheric Administration.
Other experts cite freshwater dangers, since fish weakened by a stressful trip downstream are less likely to survive in a hostile ocean. This is a politically loaded argument: many of those stresses, from pollution to introduced species, are man-made. "Protecting this icon means protecting the watershed, from where these things spawn in the mountains down to the ocean," said Jon Rosenfield, an aquatic conservation ecologist based in Berkeley, California. "If you operate the rivers in the way that's best for agriculture, that's not necessarily how the water would be operating on its own."
In addition to being the most populous state, California is the most productive agriculturally. But much of its farmland, and more than 75 percent of its population, lie south of Sacramento, while three-quarters of the precipitation falls north of it. Huge dams, the Shasta chief among them, hoard water that's released downstream on demand and pumped to the Central Valley and Los Angeles. The arrangement works out for millions of people but not always for the fish, which can get disoriented in artificial flows created by water diversions and never make it to the sea.
Such problems are expensive to fix and the solutions can mean water shortages, especially for farmers, which heighten the conflict between interest groups. "The environmental community exploits the problems in nature and ignores human problems," said Jason Peltier, deputy manager of the sprawling Westlands Water District, which supplies hundreds of farms in the Central Valley. "That's their agenda. I can't understand how they get away with it. I can't understand how [the groups] push a fish-and-nature-first agenda at the expense of human socioeconomic conditions."
Over the past decade or so changes have been made to California's intricate plumbing to give salmon safer passage. Shasta Dam was retrofitted, at a cost of roughly $80 million, with a device that draws from the very bottom of its reservoir, supplying downstream areas with more of the cool water that spawning salmon require. In addition, hundreds of millions of dollars have been spent otherwise improving Sacramento River habitat.
But it's doubtful that any amount of effort or money can restore the salmon's world. I didn't fully understand this until I visited the most altered ecosystem of all, the one environmentalists are most likely to lament when discussing the king. It's where ocean and river meet: the vast and troubled estuary at the Sacramento's mouth, through which almost all the river's wild-born salmon pass en route to the Pacific. The former 400,000-acre tidal marsh is California's main water hub, a place both tamed beyond recognition and perilous for salmon in new ways, full of obstacles far more challenging than mere rapids.
Just east of San Francisco Bay, the Sacramento-San Joaquin Delta stretches 50 miles south of Sacramento and some 25 miles west. Part of the largest estuary on North America's Pacific Coast, the delta was once a marshy haven of cattails and bulrushes. Juvenile salmon from both the Sacramento and San Joaquin rivers (which converge in the delta) used it as a kind of staging ground, tarrying in its shallows before going out to sea.
But 150 years and 1,100 miles of man-made levees later, the wetlands have been transformed. During the gold rush, they were drained and converted into a web of farming islands with winding channels in between. Ninety-five percent of the original marsh is gone, and what remains is the epitome of an artificial landscape, so squarely under civilization's thumb that it's almost impossible to imagine it otherwise. The islands—many of them ten feet or more below sea level due to soil decomposition—are a patchwork of crops and alien species: palm trees, European sycamores, Himalayan blackberry bushes, spindly grapevines propped up on sticks, extensive plantings of Bartlett pear trees and fields of lawn turf as green and smooth as a pool table. At times the air suddenly smells of licorice—wild fennel, another invasive species. Go around a levy bend and there might be a beached World War II landing craft used by a local duck-hunting club, a sign for brand-new mansion developments "Coming Soon" or the pink explosion of a garden-variety rosebush.
The waterways surrounding these islands are about as hospitable to salmon as drainage ditches. The remaining marshland teems with nonnative species, many of them ravenous stowaways from the cargo ships of nearby San Francisco Bay. Brazilian waterweed, an aquarium favorite, clogs the sloughs and retains sediments, making the water clearer and juvenile fish easier to spot: predators like largemouth bass—introduced as a sport fish more than a century ago—lie in wait. Upriver farms release potentially poisonous pesticides and herbicides. Wastewater from the Sacramento area, with its ballooning population, also seeps into the delta, and scientists are increasingly suspicious that ammonia from human sewage interrupts the seasonal cycle of phytoplankton blooms at the base of the food chain.


Comments
Thank you, Smithsonian. This article certainly helps bring awareness of the Sacremento River Salmon. May they continue to spawn forever. Let us hope the compromise elicited by the govenor will come to fruition. Until we run out of people there will be many conflicts with nature. Joyce
Posted by joyce on September 28,2008 | 03:45PM
Salmon lovers nationwide should not hesitate to speak out and have their voice heard in support of improving conditions for California's salmon. The water and habitat these fish need is being cut up and sold to farmers and developers, while every municipality along its shores dumps their warm wastewater into the mix. This wastewater and other nonpoint sources load the Delta and it's feeders with drugs, hormones, and pesticides whose detrimental effects to salmon are well documented but aren't reported through our management agencies (NMFS, DFG, etc) until we sue them. To learn more and help SAVE the ENDANGERED COHO salmon contact SPAWN at www.spawnusa.org.
Posted by Dr. Chris Pincetich on September 29,2008 | 01:39PM
Thanks for the article but I wish I could sit down with you and talk this over. I've been doing tours in the delta for the last 7 years and I've seen the changes and understand the many points in question. There is a way to fix it and it does involve a canal and it also involves the farmers having to deal with a variable salinity estuary where in dry years the salts magrate up stream. The biggest disservice done was by the farmers when they filed suit against the State and Feds to force the State Water Resources Control Board to require the State & Fed water agencies to maintain an artificial fresh water estuary so they could get free fresh water for their crops. Then you had the Boswell political machine doing it's dirty deeds to play on the prejudices of water in the state to kill the peripheral canal (Read "The King of California"). The real fix would be to harvest water during the rainy season so flooding is minimized (the real reason for the dams) and then during the dry season you release the inflows straight through and then add what you need to harvest at the canal so the delta gets the full natural flow. All the farmers and cities need to start cleaning the water they put back into the system and Dam operators on the San Joaquin need to start releasing the natural flows so the San Joaquin river is in better shape too. There are a myraid of things this would solve. This is a problem that can be fixed and if you look at bulletin 3 that included the State Water Project and the Peripheral Canal because they knew in 1957 that it was needed for environmental purposes.
Posted by Michael Miller on October 1,2008 | 04:47PM
having two brothers who retired from commercial fishing, i am priviledged to know that our hatcheries need to take lessons from the indian hatcheries here in wa. st. turning out the smolt at an earlier age, when they still have the natural instinc to hide. rather than keeping them till they are larger, and they become indifferent to their natural preditors.
Posted by lee gettmann on October 3,2008 | 09:46AM
YOUR ARTICLE WAS GREAT ON THE KING SALMON. IT WAS WONDERFUL, BUT I WOULD LIKE TO KNOW WHO TO WRITE TO GET SOME "DEMAND WILD CALIFORNIAN KING SALMON" CAR STICKERS.
Posted by alfred cadena on October 3,2008 | 04:32PM
Prior to Hacheries and Dams on rivers the King Salmon wasn't declining. The general habitat has declined because of mega-agriculture and poor logging practices, especially for the Klamath River Salmon. The Silver Salmon are now in danger because "someone" has introduced Pike in the Eel River. The last of the Klamath Dam's was built in the 1960's and since then, the Salmon population declines. The Dams on the Klamath need to be removed (Warren Buffett has the power to remove them - He may like fish but I know he loves Investors/Conservatives). You must be aware that many areas of our Oceans are becoming stagnant. Use your common sense....no river flow, no ocean go. It's all a balance of Nature and of our Ecology. Farmed fish is pretty disgusting; you can't beat Mother Nature. Probably the reason the people with the Corporate Bucks and their unwitting "Conservative" Investors don't give a dam(n) is because there is no "bottom-line" for them when an individual or family can make a living from Nature. The true meaning of a "Conservative" is: a greedy person willing to destroy air, land, water and people for their personal profit. God help US(A).
Posted by Ellen Bryant on October 4,2008 | 04:52PM
What a fantastic article! I found myself practically "swimming with the fishes," as you narrated the enduring plight of the King Salmon and their fight for survival. Great writing, thank you!
Posted by Nicholas on October 4,2008 | 06:50PM
Great article. I also used to be a Salmon fisherman. The only difference is that I'm in Seattle. We used to gillnet in the Puget Sound, but no more. I believe a lot of it is stormwater runoff and other pollution that is harming the rivers and streams. We have a Salmon stream down the street and when it rains the stream is chocolate brown instead of clear. Now I manufacture filters for runoff to try and clean the streams. The Salmon need our help. salmonsaver.com Chris
Posted by Chris Probst on October 15,2008 | 10:27AM
A resident of Fort Bragg,Ca. watching your featured video was awesome.Great job Cyrus!I know someday soon that both you and the King Salmon will thrive together again and your dad will be in his glory watching every minute of it.Know we love you.Keep on keeping on.
Posted by Laurie Crowell on October 26,2008 | 10:03AM
Thank you for the article about salmon. sharon petersen
Posted by sharon shay on November 23,2008 | 12:30PM
The Chinook Salmon are our equivalent to the canary in the coal mine; when the salmon go, mankind and those of us living on the West Coast will not be far behind. We must save the Chinook Salmon because saving it is really saving ourselves.
Posted by Jack L. Sanchez on November 24,2008 | 02:54PM
By providing fish passage and water on Butte Creek the salmon run there has been restored. We are attempting to follow that model on the Auburn Ravine in western Placer County, www.sarsas.org (Save Auburn Ravine Salmon and Steelhead)Inc. The marine fishery is in steep decline or even collapse. As the Federal Energy Regulatory Commission (FERC) process goes on it is mandatory for human survival that the damage to anadromous fish populations and their habitat, caused by the federal governments policies, be mitigated. The first step is for the federal government to admit being responsible in large part for the crisis in declining fish populations. Water pollution, barriers to fish passage, allowing destruction of habitat, and water allocation away from spawning streams are all problems that the federal government has a hand in controlling and mitigating in the re-licensing process for power generation on California Rivers. Using the piece meal excuse to avoid responsibility is not acceptable. Projects being re-licensed by FERC have overlapping effects and also effects downstream from the licensee’s operations. The totality of the watershed and ecosystem must be considered when granting a 50-year operating license.
Posted by Scott Johnson on December 3,2008 | 08:57PM
They shut down the entire ca. coast and allow fishing for salmon in the sacramento river where there sole purpose of the fish being there is to spawn. That alone doesnt make since to me
Posted by jason cuddeford on December 12,2008 | 08:26PM
Not to change the subject of the salmon. I have always wanted to have a campground using old boats as cabin's. I could see the shells of these old fishing boats being set in the ground and refinished inside. Also a plaque on each boat to show the history. What a way to go green and also be able to let the history of these boats live on.
Posted by Ruth Callari on June 27,2009 | 07:29AM