Estuary News, August 2012

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Aug 2012 Newsletter Cover
Aug 2012 Newsletter Cover

Estuary News, August 2012 Issue

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This issue features articles on ship ballast water, dredging near eelgrass beds, and creek mouth ecology.

 

Featured Stories

Taking the Measure of Ships’ Ballast
Taking the Measure of Ships' BallastThe devil is in the details, everyone says, as California debates new regulations and new technologies for stanching the flood of invaders arriving here in the ballast water of ships. The debates revolve around two questions. First, which ballast water quality standard –the local one, the federal one, or the international one — is both the most protective and most feasible for California to embrace? And second, which is more viable, treating ballast water on ships or on shore? Joe Eaton & Ariel Rubissow Okamoto

Politicos Assist Live Birth
Politicos Assist Live Birth
On June 25, 2012, my summer employer, the San Francisco Estuary Partnership, invited members of the Association of Bay Area Governments and other local elected officials to join them for a day on the Bay. Aboard the R/V Robert G. Brownlee, we learned about the health of the estuary and the importance of freshwater flows into the Bay. The part I found most interesting, however, was the more physical side of this trip. Tira Okamoto


Great Valley Redux
Great Valley Redux
It’s hard to find anything good about the housing bust. But in California’s Central Valley people are seizing the chance to gain long-term benefits from a lull in the frenetic pace of growth. A report released in July by The Great Valley Center in Sacramento, in cooperation with University of California in Merced, contained many hopeful signs, including improvements in the region’s notoriously bad air quality and rebounding populations of imperiled birds and animals. Among the most significant news was the cooperation among former foes in efforts to plan for sustainable growth once the housing market revives. Susan Zakin

Not so Hardheaded about Heat
Not so Hardheaded about Heat
Like most minnows, the hardhead (Mylopharodon conocephalus) doesn’t get a lot of respect-even though it’s a big minnow. No, that’s not an oxymoron. A mature hardhead can reach a length of two feet. “It’s interesting with non-salmonids, tricky to get funding,” says Lisa Thompson of UC Davis. Fortunately, she was able to get a grant from the California Energy Commission, and is just wrapping up a three-year project in which her research group tested wild-caught hardheads to determine water temperature preferences and tolerances. Joe Eaton

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Inside this Issue
[toggle_box] [toggle_item title=”Dos and Don’ts of Dredging around Eelgrass” active=”false]A new federal policy seeks to protect California’s eelgrass meadows from the scoops and hoses of dredgers and other subtidal disturbances. The vulnerability of eelgrass (Zostera marina) to human activities like dredging prompted the National Oceanic and Atmospheric Administration’s Fisheries Service (NMFS) to release a California Eelgrass Mitigation Policy in December 2011. The overall goal is no net loss of eelgrass habitat. Joe Eaton[/toggle_item] [toggle_item title=”Creeks: A Mouthful of Resilience” active=”false”]More than eighty creeks feed directly into the San Francisco Estuary. “A good creek mouth, a good, healthy wetland, will be the first barrier against sea-level rise,” explains Adrien Baudrimont with the San Francisco Estuary Partnership, who recently began cataloging all existing information about the Bay’s creek mouths – including details like substrate quality, vegetation condition, nearest upstream barrier, and site history – in order to help prioritize restoration projects. Nate Seltenrich[/toggle_item] [toggle_item title=”Water Trail Ramping Up” active=”false”]Planners with the California Coastal Conservancy and ABAG are now developing a comprehensive Accessibility Plan that could offer a blueprint to the nation’s 400 to 500 other water trails, said project manager Ann Buell. While many different types of accessibility plans exist across the country, this effort marks the first time that an organization has created one for a large system of sites it does not own. Nate Seltenrich[/toggle_item] [toggle_item title=”Clarifying State Protocols for Wetlands” active=”false”]Anyone wanting to dredge and fill a wetland in California will soon be subject to a new, but familiar, set of hoops to jump through. Regulators are putting the finishing touches on a new state policy that they say will improve wetland protection and create more consistency in how the regional water boards weigh in on dredge and fill projects. Ariel Rubissow Okamoto[/toggle_item] [/toggle_box]
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