Friday, February 26, 2021Tuesday, February 23, 2021

Winter-Run Critical Habitat Conundrum – Flashback Friday

In today’s Flashback Friday, we explore the driving factors creating diversity within the winter-run Chinook salmon populations in the Sacramento River. Just when you think you’ve got a Read More…

Monday, February 12, 2018Friday, February 9, 2018

Winter-Run Critical Habitat Conundrum

Just when you think you’ve got a species figured out, sometimes they show up where they’re “not supposed to be” and make you reconsider. This recently happened Read More…

Monday, January 23, 2017Monday, January 23, 2017

Learning from Carcasses and Final Fish Counts

What can you learn from a dead fish? Surprisingly, a lot. Dead salmon are a common sight this time of year, as adult fall-run Chinook salmon perish Read More…

Monday, December 14, 2015Friday, December 11, 2015

Tsunami Stunts Fish Growth

Picturing the effects of the 2011 Japan tsunami conjures up vivid images of the immediate disaster: swamped fishing boats, towns washed away, or the meltdown at the Read More…

Monday, May 4, 2015Monday, May 4, 2015

Retracing migrations of Mekong River mud carp

When researchers want to understand where a fish spends its time, they often use tagging techniques to track the fish’s movements, like a detective tailing a suspect Read More…

Friday, August 1, 2014Monday, August 4, 2014

Miniature ear bones

Fishes can hear (and produce) quite a range of sounds, as we discussed in our recent Fish Report, “The Symphony Aquatic.” One of the mechanisms by which Read More…

Friday, June 27, 2014Tuesday, December 18, 2018

Rings in their ears

Fish bones have plenty of stories to tell – particularly a special type of ear bone called an otolith that keeps a record of a fish’s entire Read More…

Wednesday, October 31, 2012Thursday, June 12, 2014

On the next episode of Ghost-Fish Hunter…

Though the fish pictured above may resemble a Halloween prop, they are in fact gobies that have been marked with calcein, a chemical that adheres to calcium-containing Read More…

Friday, January 13, 2012Tuesday, June 3, 2014

What’s for lunch?

As lunchtime approaches, Patrick may be thinking about what’s for lunch, but at the moment he’s trying to figure out how we're going to fit more salmon Read More…

Monday, November 7, 2011Thursday, June 12, 2014

Otolith extraction

[gallery link="file" ids="9029,9030,9031"] Otoliths are small mineral structures (ear bones) found in the head of all fishes other than sharks, rays and lampreys. Otoliths allow fish to Read More…