Posts by Jim Ervin

Fish in the Bay – September 2022, part 2 – Seaweed & Seagrass Beds inhibit Red Tides!

This is a follow-up post regarding Harmful Algal Blooms (HABs) and the recent H. akashiwo red tide in San Francisco...

Fish in the Bay – September 2022, Red Tide Emergency Trawls.

As we are all now aware, single-celled phytoplankton called “Heterosigma akashiwo” bloomed into a dark reddish-brown stain across much of...

Fish in the Bay – August 2022, Bat Ray Bonanza.

A slightly belated report from August trawls.  At the time of this report, we were not yet aware of Red...

Fish in the Bay – August 2022, RED TIDE ALERT!

Folks, the Red Tide continues to sweep across portions of North and Central San Francisco Bay.  Areas affected by dark...

Fish in the Bay – Special Report: Green Water, 6-7 Aug 2022.

This is a Fish in the Bay special report to document observations of water color in Lower South San Francisco...

Fish in the Bay – Special Report, The Year of the Shark – 2022.

Schematic distribution of the 9-10 July shark catch: 20 Leopards + 2 Brown Smoothhounds. Our block-buster shark year continues.  By...

Fish in the Bay – Special Report, Color Change Experiment #7

Belated report:  This Clupeiform color change experiment was conducted in December but never reported.  This is part of my longstanding...

Fish in the Bay – July 2022, Palaemon Shrimp take over.

Record-breaking Palaemon Shrimp month: almost 13,000 were caught in July.  The previous record monthly catch was in November 2021 when...

Fish in the Bay – June 2022, Supplemental Report, Fishes & Other Critters.

By Luca Sartori, California State Maritime Academy Class of 2025.   https://www.csum.edu/ Editor’s note: Luca is spending his summer internship developing...

Fish in the Bay – June 2022, Record Anchovies and Gobies!

The fishes are now solidly in their summertime regime:  Anchovies, Gobies, baby Sharks, and Bat Rays.  Cool water fishes have...

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