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Dan Bacher

Could Global Warming Affect California Fisheries?

By: Dan Bacher
July 22, 1997

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A recently released study by the World Wildlife Fund contends that California's coastline is among the areas already showing impacts from global warming.

The study reveals "alarming facts" about impacts already occurring such as glaciers that are projected to disappear and rising sea levels in low-lying areas. The study concentrates on the impacts on National Parks and protected areas.

Among the report findings are:

  • "The highly productive waters off the coast are experiencing a loss of sea life as a result of global warming."
  • "Gray and blue whales dependent on California waters could be affected by reductions in sea life."
  • "The San Francisco Bay National Wildlife Refuge and the endangered species that rely on it, including the California clapper rail and the salt marsh harvest mouse, are highly vulnerable to the sea level rise predicted for San Francisco Bay."

"We known we've reached a crisis point when the glaciers and moving faster than the governments," said Adam Markham, Director of WWF's Climate Change Campaign. "My hope is that this new report will serve like the first alarm in a fire. By taking action immediately, we can save our national treasures."

"Sierra Club is joining WWF in releasing their report to help get out the word that global warming threatens our coastline,' said Sierra Club Representative Michael Paparian. "We need to take steps to cut greenhouse gas pollutions so that we can protect our coastline for our families and for our future."

These contentions, if they are indeed true, are quite alarming. Some contend that recent episodes of extreme weather conditions in California and throughout the world are the result of global warming, while others scientists claim that they are normal cycles of weather patterns. However, this report contends that "The ten warmest years on record have all been in the past two decades."

I would like to see more specifics on what fish and other marine life are being affected by global warming. I suspect that warm weather species would do better in a period of climatic warming, while cold water species would experience a decline. If you're more interested in this topic, call the Sierra Club at (916) 557-1100 X104.

Fishery Groups Support Project Noah's Ark

Ron LaForce, outdoor editor of "The Times of Yuba-Sutter," contacted Larry Ward, president of United Anglers of California, and proposed a project that called for electroshocking and then transporting Lake Davis trout to Frenchman Reservoir for storage until Lake Davis waters were deemed suitable for re-stocking.

This plan, "Project Noah's Ark," represents an attempt to salvage the trout of Davis Lake if the lake is poisoned to eliminate northern pike this fall. DFG biologists and anglers fear that the pike will devastate salmon and steelhead populations if they are allowed to spread from Davis Lake into the Feather River and then into the Sacramento River and Delta. A temporary restraining order has stopped the poisoning until the parties go back to court in August.

This chemical treatment issue is very controversial, with the City of Portola and local residents opposing it because fears of ground water contamination, combined with the temporary elimination of the famous lake as an excellent rainbow and brown trout fishery. On the other, many fishery conservation and wildlife groups are in support of chemical treatment because of the threat the pike presents to salmonid fisheries.

La Force has embarked on a crusade in recent weeks to get support for the lake's chemical treatment and "Project Noah's Ark." The project already has the conceptual approval of Pat O'Brien, the DFG's senior biologist. It also has the tacit approval of Untied Anglers of California, the California Striped Bass Association, the California Waterfowl Association and Ducks Unlimited, leading conservation groups with a combined membership of more than 100,000 individuals, said La Force.

"Although we sympathize with local residents and business owners and sports anglers, we firmly support the chemical eradication of fish of this lake," said Larry Ward. "Each day that this unfortunate solution is delayed we increase the odds that some of the unwanted and dangerous pike may escape into the drainage of Davis Lake and into the central valley's ecosystem. The introduction of the pike into the Delta and the rivers has the potential to utterly destroy the salmon, steelhead, striped bass, sturgeon and other game and non-game fish."

More Editorials by Dan

 

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