Fish in the Bay!

Welcome to Fish in the Bay!

Dive into the latest insights from the Otolith Geochemistry and Fish Ecology Lab (OGFL) as we explore the fascinating dynamics...

OGFL contributions to listing Longfin Smelt

OGFL contributions to listing Longfin Smelt

The U.S. Fish and Wildlife Service (USFWS) has officially listed the San Francisco Bay-Delta distinct population segment of longfin smelt...

Monitoring the migrations of China’s anadromous eel-like anchovies

Monitoring the migrations of China’s anadromous eel-like anchovies

The OGFL has begun a collaboration with reseachers studying Tapertail Anchovies on the Yangtze River, China. This large anchovy with...

Fish in the Bay – October 2024, Hot October – Invasions Continue.

October was a hot weekend.  Air temperature was beastly.  Water temperatures in October were close to 2 degrees C warmer...

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 – September 2024. Upstream Invasions.

A belated September report … The overall raw fish count increased, but this was not good news.  Almost 50% of...

Fish in the Bay – August 2024. Bat Ray Care & Feeding – in the Nursery.

Once again, fish totals were low in August.  We presume this is the lingering El Nino effect.  Hopefully, a flip...

Fish in the Bay – Summer 2024. Clupeiform Color Special – Riddle of the Guanine Crystal.

This is a special report to consolidate recent observations and discoveries regarding light refracting-properties we see so often in Clupeiform...

Fish in the Bay – July 2024, Part 2. Anchovy Colors & Spawning Behavior.

This second part of the July report covers some additional random items. Spawning Anchovy sex ratio Water Color Update for...

Fish in the Bay – July 2024, El Nino Summer Doldrums.

I suppose we could call this the “slow summer” or maybe the “warm summer.”  Fish counts remain low compared to...

Fish in the Bay – June 2024, Part 2. Gobies, Pipefish, & Bugs.

This is part 2 of the June report.  – These are additional observations that couldn’t be squeezed into the initial...

Fish in the Bay – June 2024, El Nino Watch.

El Nino officially ended in May, but effects on fishes linger.    Overall fish totals remain low – with one...

Fish in the Bay – May 2024, El Nino?

Relatively few fish overall.  May totals were generally not the lowest ever, but these numbers were reminiscent of low fish...

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 – March 2024, Spring Flush Continues.

As of March, we were still experiencing a welcome extended rainy spring.  In theory, the additional rainwater flushing should be...

Fish in the Bay – February 2024, Part2. Freshwater Flush, continued.

This is part two of the February blog.  The February flush and the resulting salinity drop scattered most of our...

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 – January 2024, Part 2 – A January food chain.

Part 2 of the January 2024 report: 1. Green water & some reddish fish in Artesian Slough. Clear green water...

Fish in the Bay – January 2024 – Longfin New Year!

Our first trawls of the new year were fairly spectacular for a mid-January: 731 Longfin Smelt. – This month alone...

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