alviso slough

Fish in the Bay – October 2023, Part 2: Musculista Explosion, Green Water, & Big Brown Birds.

This report covers additional observations from October. Musculista senhousia, aka “Asian Date Mussels,” or Arcuatula senhousia, have been showing up...

Fish in the Bay – August 2023 Highlights: Shimos, Anchovies, & Blackbirds in the Bulrush marsh.

In August, the fish populations finally transitioned to a more typical summertime assemblage of Anchovies and Gobies.    However, a...

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 – April 2022, Part 1: Traditional Baby Fish Month?

Long-time readers will know that April is “Baby Fish Month” in Lower South SF Bay.  Larvae of gobies and a...

Fish in the Bay – February/March 2022 Supplemental Report: Gobies, Shrimp, etc.

SF Bay fishes are very active in winter through spring.  Charismatic pelagic fishes like Longfin Smelt, Anchovies, Herring, Topsmelt, and...

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 – December 2020: Anchovy Rebound & Blue Fish.

Trawl map. A Longfin Smelt “Alert” was posted earlier concerning egg-bearing Longfins we caught in December.  This post addresses all...

Fish in the Bay – December 2019, Special Report: Brown Shad after Bomb Cyclones & Atmospheric Rivers.

Hello again everyone.  If you live in the Bay Area you are aware that we had a lot of rain...

Fish in the Bay – March 2019, UC Davis Trawls – Save the Whales! Larval fish trawl, plus a Sea Level Rise Rant.

First a Special Thanks:  I want to acknowledge and thank agencies that continue to support the Hobbs Lab work.  1)...