Monday December 26, 2022

To cap off 2022, we’re looking back at our most-read stories of the year. Building and installing weirs to trap invasive salmon in Norway, setting the Guinness record for tagging the world’s largest freshwater fish, and collecting eDNA samples from Siamese crocodiles are at the top of the list. This year we definitely expanded our knowledge and expertise! Enjoy our best of!

#5 The Delta Divide — Bass Trends In Salmon Migration Corridors

In the Delta, juvenile Chinook salmon migration survival is a hot topic. Scientists and managers have spent the last decade exploring the variables associated with the continued decline in salmon survival through the Delta and identifying potential habitat restoration-related solutions. This story takes a deep dive into the situation, highlighting the role that non-native predators play in the fate of juvenile salmon and how FISHBIO is contributing to the overall understanding of their impacts.

#4 Worth Waiting For — The Advantages Of Late-Migrating Spring-Run

This story featured a study published in Nature Climate Change that investigated a rare life-history strategy for threatened spring-run Chinook salmon that yielded surprising success. This discovery may provide a form of “life support” for threatened spring-run Chinook salmon as they navigate through increasingly adverse conditions.

#3 Crocupied? Searching For Siamese Crocodiles With eDNA

Siamese crocodiles were historically commonplace in Cambodia, but have been lost from much of their historic range in the country. In recent years, an effort to build a reintroduction program for this critically endangered species has been underway. Read this story to learn about how FISHBIO scientists assisted in the collaborative effort to test eDNA as a method to monitor the reintroduction process.

#2 FISHBIO Scientists Tag World’s Largest Freshwater Fish In Cambodia

Earlier this year, FISHBIO scientists tagged the world’s largest freshwater fish, the giant freshwater stingray (Urogymnus polylepis). In this story, learn about how we collaborated with a local fishing community to make history in our efforts to learn about and protect the Mekong River and its inhabitants.

#1 Seeing Pink — Norway Prepares For Salmon Invasion

Salmon returning in large numbers is often a good thing, but in  Norway, an abundance of invasive pink salmon (Oncorhynchus gorbuscha) is posing major threats to native Atlantic salmon (Salmo salar).. This year, FISHBIO was hired to build and install two large weirs in Norway to help local managers remove pink salmon safely, while still allowing the native Atlantic salmon to continue on their upstream spawning migration. This story covers the history of the issue and describes the preparation process for this large job. 

Check out our top-viewed video of 2022: Giant Freshwater Stingray Tag and Release

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