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Recent accomplishments of CDFW's scientific community


San Mateo Lagoon Steelhead Restoration Shows Early Promise

A California Department of Fish and Wildlife Biologist holds a healthy juvenile steelhead from Pescadero Creek Lagoon Complex in coastal San Mateo county.
There’s a dichotomy in the way Pescadero Creek Lagoon Complex in coastal San Mateo County has both supported—and been detrimental to—steelhead trout for much of the past 25 years.

Pulse Flows Expected to Boost Brown Trout Fishery in Owens River Gorge

Two people laying on dirt ground looking into small white tray filled with water and unknown items while holding forceps. Also on ground nearby are a small cooler, metal clipboard, orange toolbox, cylindrical bottle with liquid, backpack, and ice tray.
From boom to bust to decades of angler indifference, few California fisheries have experienced such wild swings of fortune as Mono County’s Owens River Gorge.

Junction Reservoir Back to Raising Backcountry Trout

Concrete structure in stream with slatted metal gates and chutes. Man wearing camo waders, beige long sleeved shirt, gray call cap and black rubber gloves standing behind gate holding hammer.
Junction Reservoir in Mono County is CDFW’s brood lake for the Kamloops rainbow trout, a hard-fighting strain originally from the Kamloops region of British Columbia.

Creel Survey Keeps Tabs on Quality at Crowley

Crouching man in brown and beige uniform and ball cap on boat with pencil and chart on clipboard next to open cooler filled with fish.
Mono County’s Crowley Lake is a destination fishery that attracts trout anglers of all kinds – bait fishermen, lure casters, trollers and fly anglers – throughout the state during its open season.

Biologists Work to Restore Kirman Lake’s Trophy Trout Fishery

Small green and brown spotted fish held in hands
It’s a question that has been asked by more than a few eastern Sierra trout anglers: What happened to the fishing at Kirman Lake?

Sweetwater River Habitat Restoration

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California’s drought emergency was officially declared to be over last year, but its deleterious impact on fish habitat is still being felt in many parts of the state -- especially in arid parts of Southern California. In order to help offset these effects at one site in northern San Diego County, CDFW biologists and other staff recently toiled to create spawning beds for rainbow trout.

Stacking the Odds to Stock California’s Waters

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The beginning of trout fishing season in Southern California is just around the corner, and CDFW biologists and hatchery staff are striving to maximize hatchery trout availability for the many anglers who will cast lines in coming weeks. Trout angling in lower-elevation waters of Southern California generally begins in November and continues through April, to correspond with colder water temperatures that can sustain stocked trout.

New Heritage Trout Production Program for Inland Fisheries

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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 produce 17 strains, species and subspecies of trout.

The Long Journey of Heenan Lake’s Lahontan Cutthroat Trout

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For generations, anglers in California’s eastern Sierra Nevada mountains fished for one of the most cherished fish in the west, the Lahontan cutthroat trout (LCT). These native beauties are prized for their size, with some growing as large as 40 pounds in the Tahoe Basin.