August 26, 2022

San Francisco Bay is experiencing a harmful algal bloom (HAB) of Heterosigma akashiwo, an organism that has caused fish kills in other estuaries. While fish mortality events were not observed during this event’s early stages, fish-kill reports began emerging around August 22, shared by researchers studying the bloom and Bay Area residents. 

To assess the HAB event’s impacts on Bay wildlife, documentation of fish mortality is urgently needed over the coming days and weeks. However, Bay size (Area: 1600 mi2; shoreline: >300 mi) makes data-gathering a daunting challenge -- one that calls for an ‘all-hands’ approach.

Your Role

We are therefore seeking the assistance of Bay Area residents to report dead fish sightings. Please contribute to this regional effort: If you observe dead fish while navigating the Bay’s waters or traversing its shoreline, please share your observations by...

  1. completing the webform below and
  2. uploading photos.

This citizen science project is a collaboration between the SFEI, Baykeeper, and UC Davis fish ecology researchers, supported by the San Francisco Bay Nutrient Management Strategy.

Disclaimer

Photos and other documentation are very helpful when following up on observations. By furnishing information below, you agree that all photos and submitted information will become the property of the San Francisco Estuary Institute.

Please direct any questions to [email protected].


 

Upload a picture that shows any fish kills in the San Francisco Bay.
Files must be less than 20 MB.
Allowed file types: gif jpg jpeg png heic.
Upload a second picture that shows any fish kills in the San Francisco Bay.
Files must be less than 20 MB.
Allowed file types: gif jpg jpeg png heic.
Describe your location as precisely as possible.
:
Please contribute additional information below, including any of the following: fish species, if known ; if multiple species were present, the # of each species; condition of fish (struggling but alive, dead, dead and decaying); HAB event evident based on color of nearby water; other observations.

More Information

If you wish, we can keep your information on file, should we need to follow up regarding your submission, or keep you apprised of any new developments related to fish kills, harmful algal blooms, and nutrients in San Francisco Bay. The following information is not required.