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California Fish and Game Journal, Issue 102-4

California Fish and Game Journal, Issue 102-4

The latest issue of California Fish and Game, CDFW’s scientific journal, is now available online. This century-old quarterly journal contains peer-reviewed scientific literature that explores and advances the conservation and understanding of California’s flora and fauna.

A photo of the world’s first radio tagged tricolored blackbird (Agelaius tricolor) graces the cover of this issue of California Fish and Game. The bird was tagged as part of a study, the results of which are published as “Breeding chronology, movements, and life history observations of tricolored blackbirds in the California Central Coast” by Wilson et al. The tricolored blackbird is currently under review for listing under both the California and Federal endangered species acts.

Also in this issue, Overton et al. offers a fascinating observation of predation by Peregrine falcons on an endangered California Ridgway’s rail (Rallus obsoletus obsoletus), the result of environmental extremes and a series of species interactions.

Other papers published in this issue look at a predictive model for commercial catch of white seabass (Atractoscion nobilis); fecundity and reproductive potential of wild female Delta Smelt (Hypomesus transpacificus); and updated information on the length-weight relationships (LWR) and length-length relationships (LLR) and condition factors for pelican barracuda (Sphyraena idiastes) in the Gulf of California.

New in this issue is a section called “From the Archives,” which reprints articles from past issues to provide historical perspective on topics still relevant today. The first article in this series comes from Volume I, Issue I, dated 1914. It asserts that natural resources must be conserved for the use and enjoyment of the public.

Download the entire Fall Issue 102 in high resolution, or browse individual articles in low resolution.


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

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    Volunteers from the Society for the Conservation of Bighorn Sheep install the second of three 2,300-gallon water tanks to provide water for wildlife in the Southern California desert. SCBS volunteer Glenn Sudmeier and Steve Marschke install plumbing fixtures for the ...
  • New Heritage Trout Production Program for Inland Fisheries Posted last week
    For more than a century, CDFW’s Trout Hatchery and Stocking Program has been providing recreational fishing opportunities to anglers throughout California. Today, the trout hatchery program is composed of 13 hatcheries, which oversee 20 distinct fish production programs to ...
  • Wildlife Corridors at Yolo Bypass Will Help Animals Escape Flooding Posted 2 weeks ago
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  • Dove Banding Posted 3 weeks ago
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  • CDFW Kelp Survey Posted last month
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