Posts by Jim Ervin

Fish in the Bay – December 2022 – Rain & Brown Water

We trawled in cold and intermittent rain on December 10th and 11th.   This seasonal weather change is a very good...

Fish in the Bay – Special Report: Understanding H. akashiwo & the Red Tide. What Does This Strange Organism Want?

What caused H. akashiwo to bloom into a red tide frenzy in San Francisco Bay last summer?  Another bloom like...

Fish in the Bay – November 2022 – Sturgeon Alert!

The disastrous San Francisco Bay Red Tide of August 2022 is now fading into memory.  The most crushing long-lasting effect...

October Report – Big Bass & Guitarfish Month.

In response to concerns about fish kills from the July-September Red Tides in Central and South San Francisco Bay, I...

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...

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