rotary screw traps

Baby wood ducks: an unexpected catch

Our rotary screw traps sometimes catch more than just the usual fish and debris. Earlier this year, our fisheries technicians were surprised to find a few baby Read More…

Film Friday: Fish Counting and Flow

https://www.youtube.com/watch?v=kuN-j2RnEew Today's Film Friday is a time-lapse from the field, showing our fisheries technicians troubleshooting the lack of flow during the recent drought. They addressed this challenge Read More…

Film Friday: And the Cycle Continues

https://www.youtube.com/watch?v=Q7cv5nWOjoc With our rotary screw trap monitoring in full swing, today's Film Friday is about a paper we published on using rotary screw traps to estimate the Read More…

A King Among Snakes

What has a head but no hair, a tail but no legs, and is black and white all over? If you guessed a California kingsnake, then you’ve Read More…

Photo Friday: Big Mess

Storms are typically good for fish, but bad for fisheries monitoring equipment... Today's Photo Friday shows the surprise that greeted our crew during a recent visit to Read More…

Flashback Friday – We Count Fish

It's a new year and our outmigration monitoring program is underway. Here's a look back at a post that explains how we count migrating juvenile salmon. Many Read More…

Night shift

We often have to work some pretty late hours at FISHBIO, sometimes spanning the entire night.  This unconventional schedule is partially due to rotary screw trap efficiency Read More…

Film Friday: Marking Salmon

https://www.youtube.com/watch?v=rlOLpBA0UU8 Juvenile salmon outmigration season is underway! As the young fish make their way through the rivers and out towards the ocean, we monitor their population with Read More…

Emigration stations

Now that we’ve recently turned the page to a new year, we also turn our attention to the beginning of out-migration monitoring season. Now that the fall-run Read More…