Monday, February 22, 2021Monday, February 22, 2021

Advancing Steelhead Monitoring in the San Joaquin Basin

Studying steelhead (Oncorhynchus mykiss) populations in the rivers of California’s Central Valley has long challenged scientists and managers due to the species’ diverse and complex life history. Read More…

Monday, February 8, 2021Friday, February 5, 2021

Keeping Tabs on Fish Health in the Calaveras River

The Calaveras River is home to several iconic and sensitive native California fish species, including both forms of Oncorhynchus mykiss (steelhead and rainbow trout) and opportunistic runs of Read More…

Monday, July 13, 2020Friday, July 10, 2020

Coho Climate Challenge: Identifying At-risk Populations

A wealth of data about the past can make it easier to predict the future. Biologists studying economically valuable salmon often have the advantage of working with Read More…

Monday, June 8, 2020Sunday, June 7, 2020

Environmental DNA: New Technology, New Uncertainties, and Establishing Best Practices

With any new technology comes a slew of new uncertainties, requiring scientists to wrestle with questions about best practices, possible sources of error, and interpretation of results. Read More…

Monday, January 6, 2020Monday, January 6, 2020

Our Top Stories of 2019

As the new year gets underway, we like to look back at the year in the rearview mirror to see which of our website stories readers found Read More…

Friday, November 1, 2019Sunday, January 6, 2019

Flashback Friday: Heavy Metal

In today's Flashback Friday, we describe the installation of a rigid weir to monitor both upstream and downstream fish passages – including with a video of the Read More…

Monday, July 30, 2018Thursday, February 14, 2019

Elevator Ride: Custom Fabrication for the Riverwatcher Fish Counter

Our fabrication team knows how to go big when it comes to creating custom fisheries monitoring equipment. Our latest mega-build is a giant lift system used to Read More…

Monday, March 26, 2018Tuesday, March 27, 2018

Hope for Rainbow Trout on the Stanislaus River

Cooked trout might make an excellent dinner, but sizzling water temperatures are bad news for wild trout in rivers. Rainbow trout on the Stanislaus River found themselves Read More…

Wednesday, May 24, 2017

Ontario’s first Riverwatcher

More than 300 Vaki Riverwatchers have been installed to count salmonids in rivers around the world since the late 90s. That number grew in October of 2016 Read More…