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Recent accomplishments of CDFW's scientific community


Surveying the Sacramento River and Delta

Surveying the Sacramento River and Delta

Since 1959 the California Department of Fish and Wildlife (CDFW) has used a combination of scientific techniques to better understand fish populations and the general health of Northern California waterways. Examples include tagging sturgeon, trawling the Delta for smelt, and counting salmon carcasses. CDFW uses data from these strategies and others to help influence operations of the State Water Project and Central Valley Project, ultimately helping decision makers determine water flows. link opens in new windowThis short video highlights these operations along the Sacramento River and into the Delta, including a smelt survey conducted by Environmental Scientist Felipe la Luz.

a man and a woman on the aft deck of small vessel on a river a woman and man prepare a fish-catching net



Recent Posts

  • Badly Burned Ursines Get Back on their Feet – Thanks to Teamwork and Fish Skin Posted 1 days ago
    The tilapia skin is visible on the bottom of the bear's paw. Veterinarians perform an ultrasound to check on the progress of the second bear's pregnancy. Acupuncture needles assist with pain management. After placing the second bear, the team moved the first ...
  • Study of Songbirds’ Calls Provides Important Climate Insight Posted 4 days ago
    The automated recorder model the scientists used. (CDFW photo by Brett Furnas) Two avian researchers recently completed a groundbreaking study on the effects of climate change, based on the calls of California’s songbirds. By recording the sounds made by eight ...
  • Ridgway’s Rail Release Posted last week
    Staff of several wildlife agencies carry light-footed Ridgway’s rails (previously known as light-footed clapper rails) to Batiquitos Lagoon Ecological Reserve. A light-footed Ridgway’s rail is banded before release into Batiquitos Lagoon Ecological Reserve. The Ridgway’s rail is a grayish-brown, chicken-sized ...
  • How Aquaculture will Shape the Future of Olympia Oysters at Elkhorn Slough Posted last month
    Kerstin Wasson is leading the Olympia oyster restoration at Elkhorn Slough. Kerstin Wasson photo. Scientists are working hard so that a new generation of Olympia oysters may one day line the mudflats at the Elkhorn Slough Reserve. Volunteers Ken Pollak and ...
  • Banking on a Future for California’s Natural Resources Posted 2 months ago
    A California red-legged frog sits motionless at the edge of McClure pond at the Sparling Ranch Conservation Bank. Photo by Ashley Spratt/USFWS McClure pond is one of the most productive California red-legged frog ponds at the Sparling Ranch Conservation Bank. ...
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