Cottus asper

Fish in the Bay – May 2025, WRMP San Pablo Bay Trawls, Part 1.

New WRMP San Pablo Bay trawls.  The UC Davis OGFL crew performed fish assessments of restored marsh areas around San...

Fish in the Bay – May 2025, Extra Baby Fish Month

Extra Baby Fish Month!  It happened again.  Every once in a while, we see a bigger goby baby boom in...

Fish in the Bay – March 2025. Baby Fishes & Interesting Oddballs

The Shaduary Shad population explosion ended by early March.  Only a small remnant of stragglers remained in the area.  Unfortunately,...

September 2024 Part 2: Goby Faces, Halibut Eyes, Clupeiform Colors, etc.

September report continued … 1. Gobies & Sculpin. Something odd is happening in Goby World.  All numbers were down compared...

Fish in the Bay – April 2024, Part 2, Every Fish has a Season.

This is part two of the April report.  Part one covered “Baby Fish Month” which mainly pertains to the April...

Fish in the Bay – April 2024, Traditional Baby Fish Month.

Once again, it is that time of year: Baby Fish Month!  Hundreds to thousands of tiny baby “unidentified” gobies traditionally...

Fish in the Bay – February 2024, Freshwater Flush & a Later Red Tide.

February trawls were conducted on 10 and 11 February just after two atmospheric rivers dumped a good amount of rain. ...

Fish in the Bay – November 2023, Cool season.

Winter fishes arrive as weather cools.  This creates a complicated picture in November.  Many summertime fishes linger as Longfins, Herring,...

Fish in the Bay – August 2023, Starry, Starry Summer!

The big story for August is that another 464 baby Starries were caught.  When added to all the Starries caught...

Fish in the Bay – July 2023, Record Starry Year

Record Starry Year!  As reported earlier, the year-to-date Starry count had already exceeded the previous record year as of June,...

Fish in the Bay – April 2023, Traditional Baby Fish Month

April is “Traditional Baby Fish Month.”  The tradition is fairly new in Lower South San Francisco Bay.  New for us,...

Fish in the Bay – September 2021: Operation Guadalupe, Part 2.

Operation Guadalupe trawl stations. Operation Guadalupe. Continued.  For this second installment, we examine some of the fishes in Alviso Slough...

Fish in the Bay – February 2020: Comb Jelly Explosion!

No rain = fewer fish!  An unseasonable winter dry spell continues.  Lower South Bay continues to get saltier.  Based on...

Fish in the Bay – January 2020: Part 1, Pregnant Sculpin, Saltwater Oddballs, and a Shad Experiment.

Trawl map. Full Moon and perihelion.   The Moon set at sunrise as we launched on Saturday.  The combination of full...

Fish in the Bay – December 2019: Part 2, Gobies and more wet-season erosion.

Some additional December observations and 2019 end of year clean up. Fish & Bug Matrix: Six good years of comparable...

Fish in the Bay – August 2019, UC Davis Trawls – Worm Fight and the Evolving Marsh.

We had another good trawling weekend in August despite warm water and plummeting Dissolved Oxygen (DO).    Dr. Hobbs joined...

Fish in the Bay – July 2019, UC Davis Trawls – Brown-back Anchovies and Bat Rays

It was another mixed-up weekend in July owing to extreme summer tides and some rough afternoon weather that preempted trawling...

Fish in the Bay – June 2019, UC Davis Trawls – Freshness Continues

Hello folks.  I joined Jim Hobbs and the UC Davis trawling surveys on Saturday, June 1st.  It was a crazy...

Fish in the Bay – May 2019, UC Davis Trawls – Just a fun 20mm day in the Bay

20mm trawls on May 11th.   I rode along with Dr. Hobbs on both May 4th, for regular monthly otter trawls,...

Fish in the Bay – February 2019, UC Davis Trawls – LONGFIN ALERT! Spawning confirmed for 2019!

Folks, I write as the Atmospheric River pounds the Bay Area with much needed rain.  Urgent flood alerts have just...