Pin-pointing Predation to Inform Models of Salmon Survival
Evading a barrage of hungry mouths is a challenge for any young migrating salmon, but directly observing and quantifying predation isn’t easy when both predators and prey Read More…
San Joaquin River
Fate and Chance Encounters: Mark-Recapture Studies in an Open Fish Population
Reeling in a behemoth is a chance encounter with a formidable fish, and your decision whether to keep or release your catch seals the fish’s fate. If Read More…
Film Friday: Evaluating Non-Native Fish Populations in the San Joaquin River
Today’s Film Friday is a video we made to highlight our mark-recapture study evaluating non-native fish populations on the San Joaquin River.
Improving our Odds
For the last few years, we’ve been conducting a study in the San Joaquin River for which we deploy multiple fyke traps in the spring and early Read More…
One fish, two fish – Using mark-recapture to estimate population size
Have you ever reeled in a fish and seen a strange tag sticking off it? Chances are, that fish was part of a mark-recapture study. Capture-mark-recapture techniques Read More…
New Video: Evaluating Non-Native Fish Populations in the San Joaquin River
Our newest video features our ongoing project to study the non-native fishes of the San Joaquin River in California’s Central Valley. Non-native fishes outnumber natives in the Read More…
Photo Friday: Outside Looking In
Our fyke traps are back fishing in the San Joaquin River, and that means they require occasional cleaning. This photo won our recent staff photo contest for Read More…
Better than Expected: The 2019 Salmon Season
It’s time for our yearly review of the Pacific Fishery Management Council (PFMC) Review of Ocean Salmon Fisheries – and this year has a surprisingly positive twist. Read More…
How Many Bass and Catfish are in the San Joaquin River?
The fish assemblages in the San Joaquin River and the Sacramento-San Joaquin Delta are heavily dominated by non-native species. But we actually don’t know just how many Read More…
Sierra Snowpack and the San Joaquin River Restoration Program
In California, we all need snow – even the fish in the San Joaquin River. The San Joaquin River Restoration Program (SJRRP) hosted the 2018 Science Meeting Read More…