Joining the digital age…

Rotary screw traps are used extensively to monitor downstream migrating juvenile salmonids (See: The Count is on). Rotary screw traps utilize a rotating cone powered by river Read More…

Efficiency at its best

Rotary screw traps only catch a small proportion of the salmon migrating past the traps, so in order to estimate the total fish production on a given Read More…

Eating well

Now that we have rotary screw traps (RST) fishing several rivers in California's Central Valley, we are catching Chinook fry on a daily basis. This one stood Read More…

Catch me if you can. . .

Now that the adult fall-run Chinook spawning has come to an end it is time to install rotary screw traps for monitoring the outmigrating juveniles. In general, Read More…

It’s the water, hloupĂ˝

Ceske Budejovice in the southern part of the Czech Republic is the home of Budweiser and last week also hosted the Fish Sampling with Active Methods 2010 Read More…

Coldblooded surprise!

We never know what we are going to catch when we open the livebox on one of our rotary screw traps. This Northern Pacific Rattlesnake (Crotalus oreganus) Read More…