Underwater acoustic video camera

The DIDSON is a valuable new tool to evaluate fish presence and behavior in water that is too dark or turbid to observe them visually. Most researchers Read More…

Salmon as food

It's not uncommon for fish to regurgitate their previous meal due the stress of capture. This brown bullhead threw up the juvenile Chinook salmon as he was Read More…

Juvenile Chinook Habitat

The onset of spring means juvenile Chinook salmon smolts will begin outmigrating from many west coast salmon streams. These Chinook parr are utilizing submerged vegetation for protection, Read More…

Surgically Implanting PIT Tags

The recent winter storms have increased salmon and steelhead movement throughout the Central Valley,┬áresulting┬áin increased catches of downstream migrating fish in rotary screw-traps. A few captured rainbow Read More…