Volunteer ‘Grunion Greeters’ needed

Calling all citizen scientists; Volunteer “Grunion Greeters” are needed. Volunteer “Grunion Greeters” experience a grunion run and witness the remarkable behavior of the silvery little fish as they come completely ashore to spawn.

Grunion Greeters monitor local California beaches and collect basic information for about two hours during a grunion run. Peak spawning season typically occurs from April through early June. The grunion runs occur late at night, twice a month, after the highest tides associated with a full or new moon.

All volunteers must attend a workshop prior to spawning season (must be at least 18; advance registration required). Greeters choose the nights and beaches to monitor from a list of predicted spawning nights.

After observing a run Greeters then submit information collected via an online form and a phone “hotline”. The data are used by Pepperdine University researchers conducting studies on these most charismatic fish and to ensure their protection on the beach.

Workshop Details


April 2 from 6:00-8:30 pm.


Birch Aquarium at Scripps, La Jolla. Materials packet, snacks and beverages will be provided


Volunteers (18+ only) willing to spend 2 hours on specific nights monitoring grunion on local beaches!.


Workshop space is limited so reserve your spot by March 27.

Send email to

and include your name, email, phone number, and mailing address. Write “BAS Workshop” in the subject line.

Grunion (Leuresthes tenuis) are restricted to a narrow distribution along coastal California and Baja. Concern over beach grooming practices and grunion eggs incubating beneath the surface of the sand during spawning season resulted in a scientific study in San Diego.

A massive collaboration of concerned residents, scientists, agencies and or ganizations, and hundreds of volunteers effected significant and lasting change in beach grooming procedures in San Diego and now throughout California.

Additional studies continue to expand this work all along the coast of California. Coastal municipalities, beach managers, state parks, government agencies and environmental organizations are cooperating to ensure conservation of this remarkable fish and its sandy beach habitat.

Multiple workshops are offered in addition to the location listed here; volunteers may attend whichever option best suits their schedule.


for a complete list of dates and locations.