Friday, May 11 2012, 1:12 pm

The following questions were asked on the California Department of Fish & Game (DFG) website:

Question: I was wondering if it's mandatory to have to give up my salmon heads when the volunteer fish checkers come around to measure my fish? I thought it was my choice.

Answer: Yes, it's mandatory. The surveyors at the dock collecting heads are not volunteers but are paid, trained and educated biologists, and anglers in possession of a salmon with a clipped adipose fin are required to relinquish the head to these Department of Fish and Game (DFG) employees (Fish and Game Code, section 8226).

Section 8226 reads: "(a) ... any person in possession of a salmon with a missing adipose fin, the small, fleshy fin on the back of the fish between the back fin and the tail, upon request by an authorized agent or employee of the department, shall immediately relinquish the head of the salmon to the state, at no charge, for recovery of any coded-wire tag. The head may be removed by the fish owner or, if removed by the official department representative, the head shall be removed in a manner to minimize loss of salmon flesh and the salmon shall immediately be returned to the rightful owner. (b) It is unlawful to intentionally conceal, cull or release into the waters a salmon with a missing adipose fin that it is otherwise legal to possess."

Question: My daughter has a red-shouldered hawk that frequents her deck in San Rafael. The hawk seems to enjoy scanning from the railing for critters it might like to eat. This bird appears to have a silver tag on its right leg just above the claw but I can't read the writing. I was wondering if DFG or any agencies that you know of have a tagging program for hawks?

Answer: Yes, there are numerous researchers both in and outside of California that capture and mark birds. According to Department of Fish and Game (DFG) Raptor Biologist Carie Battistone, identification bands should be reported to the Bird Banding Lab (BBL) (www.pwrc.usgs.gov/bbl), administered by USGS. If someone sees a marked bird, such as this red-shouldered hawk, they can report it by accessing BBL's website and clicking the "Report a Bird Band or Marked Bird" link. This national program allows researchers to study bird movement (dispersal and migration patterns), survival, population trends and more.

Many bands are reported when a bird is recaptured or dies. Reading the band number can be hard, but not impossible, on live birds. In addition to silver bands, researchers also use color bands which tend to be much easier to identify and report.

Question: If an area is posted "closed to fishing," like the stretch of the Feather River between the green bridge in Oroville and the fish hatchery, is it still OK to use crayfish traps there? Or are crayfish traps considered "fishing"?

Answer: No, you cannot use crayfish traps there. According to DFG Lt. Sam Castillo, in this particular area the law says, "Closed to all fishing all year" (California Code of Regulations Title 14, section 7.50(b)(68)(A)). The law is inclusive of all species and is not specific to just trout and salmon. Some other no-fishing areas will allow for the take of amphibians, fresh water clams, crayfish and lampreys under CCR Title 14, section 7.50(a)(2), but this isn't one of them.

Continue reading here:

Losing heads while salmon fishing