March 2, 2024

The California Department of Fish and Wildlife (CDFW) announced today that fall-run Chinook salmon fry released for the first time from its Fall Creek Fish Hatchery in Siskiyou County are presumed to have succumbed to gas bubble disease in the Klamath River.

On Monday, Feb. 26, CDFW released approximately 830,000 fall-run Chinook salmon fry into Fall Creek, a tributary of the Klamath River above Iron Gate Dam. The fish were hatched at CDFW’s new, $35 million, state-of-the-art Fall Creek Fish Hatchery, which represents California’s long-term commitment to supporting and restoring both Chinook and coho salmon runs on an undammed Klamath River.

The salmon fry experienced a large mortality based on monitoring data downstream. Indications are the cause of mortality is gas bubble disease that likely occurred as the fry migrated though the Iron Gate Dam tunnel, old infrastructure that is targeted for removal along with the Iron Gate Dam itself later this year. Gas bubble disease results from environmental or physical trauma often associated with severe pressure change.

There is no indication the mortality is associated with other Klamath River water quality conditions such as turbidity and dissolved oxygen, which were reading at suitable levels on Feb. 26 and the days prior to release. The visual appearance of the dead fry detected by monitoring equipment points to gas bubble disease. Monitoring equipment documented other healthy yearling coho and Chinook salmon that came from downstream of the dam.

The problems associated with the Iron Gate Dam tunnel are temporary and yet another sad reminder of how the Klamath River dams have harmed salmon runs for generations. CDFW will plan all future salmon releases below Iron Gate Dam until this infrastructure is removed. Poor habitat conditions caused by the dams and other circumstances such as this are reasons why CDFW conducts releases of hatchery fish at various life stages.

CDFW’s Fall Creek Fish Hatchery continues to hold approximately 3.27 million healthy, fall-run Chinook salmon. Additional releases are planned later in the month.

The annual fall-run Chinook salmon production goal for the hatchery is to raise and release 3.25 million fish – 1.25 million released as fry, 1.75 million as smolts, and 250,000 as yearlings. The additional stock of fall-run Chinook salmon remaining in the hatchery exceeds the annual production goal and will help offset losses experienced with the initial release of fry.

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February 22, 2024

Question: As a new waterfowl hunter, how do I learn the difference between duck species?

Answer: This is a common question among beginning waterfowl hunters mostly because they don’t want to run afoul of the law, but some hunters with good identification skills also select preferred duck species to harvest, or they may try to harvest primarily males vs. females.

California hosts 39 species or subspecies of waterfowl, so it can be challenging to learn to identify them. Experience is the best teacher and February is a great time in California to learn duck identification by direct observation.

Our recommendation is to visit any of CDFW’s wildlife areas or national wildlife refuges that are managed for waterfowl habitat, or perhaps wherever there is access to hunt waterfowl during the waterfowl season. Visit those places after the close of waterfowl season while the birds are still around. Bring a good pair of binoculars, a waterfowl identification book and maybe a knowledgeable friend who can help. Not only can you help learn to identify the birds from looking at them, but you’ll also begin to learn to distinguish the birds by their flight patterns and sounds they make.

Fun fact, most waterfowl don’t quack, they whistle or chirp in some form or another.

For more information, visit CDFW’s waterfowl program page ( https://wildlife.ca.gov/Conservation/Birds/Waterfowl ). It includes links to resources specific to waterfowl identification.

To find more information on CDFW Lands and their operating hours, please visit the CDFW Lands webpage ( https://wildlife.ca.gov/Lands ). Also be sure visit the Emergency Closures page ( https://wildlife.ca.gov/Closures ) before visiting a CDFW office, facility or property.

He has been accepted for a double-lung transplant.

February 8, 2024

Question: What program does CDFW have that offers hunting instruction for beginners or young people?

Answer: CDFW has apprentice and special hunts that are designed to involve groups not traditionally experienced with hunting opportunities. The hunts are intended for first time or novice-level hunters, with a strong emphasis on hunter education principles and ethics while developing hunting and shooting skills.

Pen-raised pheasants allow for these hunts to happen in locations featuring easy walking, safe shooting and adequate open space for participants to spread out. These birds present a larger and slower moving target than wild birds, allowing more time to follow direction from their CDFW escort and practice safe shooting skills.

CDFW currently holds about 65 apprentice hunts each year. Junior hunts, women’s hunts, family hunts and mobility impaired hunts all fall under the description of apprentice hunts.

Apprentice hunters must possess a valid California hunting license and upland game bird stamp or validation and participants are selected through a random drawing process.

Further information on apprentice and special hunts are at CDFW Apprentice Hunts at https://nrm.dfg.ca.gov/ApprenticeHunts/Default.aspx

January 31, 2024

https://cdfwmarine.wordpress.com/2024/01/31/cdfw-proposes-changes-to-open-commercial-nearshore-groundfish-fishery/?utm_medium=email&utm_source=govdelivery

January 24, 2024

Question: Why do some species of birds fly in groups of hundreds – or thousands – while some fly or live seemingly single?

Answer: There can be many benefits to living or traveling in groups. Flocks of birds may gather for longer-distance migration or even shorter-distance local movements. Groups of birds also may assemble during the breeding season with many individual birds nesting in a colony. The main advantages of being an individual bird in a flock or nesting colony have to do with safety and finding food resources. Birds within a flock can help alert others to potential predators and other threats. The more eyes there are, the better it is to detect predators. Being in a group can also decrease the chance of any one individual within the flock or colony being taken by a predator. The scientific name for this is called the dilution effect, the more bodies there are the lower the chances of being the individual taken by the predator. Birds in a flock also can improve food-finding and wayfinding for other members within the group. For example, snow geese are a migratory bird that breed in the arctic and overwinter in parts of California and elsewhere in the U.S. and Mexico. The juvenile snow geese hatched that season in the arctic breeding colony have never migrated south. It’s common for juveniles to migrate in family groups with their parents and siblings within the larger flock, which helps juveniles find their way and locate food resources. For bird species that feed on relatively abundant plants or insects, such as waterfowl or small songbirds, it can be beneficial to be in the company of others both for safety and locating food resources.

The primary disadvantage to group living is competition for food and other resources like mates or territory. When a bird must expend a lot of energy to obtain its next meal, such as catching live prey, it can be beneficial to forage alone. For example, many raptors are mostly solitary outside of the breeding season. An individual raptor is in direct competition with its neighbor for limited food resources. Catching live prey, such as small mammals and birds, can require high energy expenditure to obtain. Given the high cost of catching the prey, the raptor benefits most from consuming the prey itself without having to share.