How often do grunion run happen?



  1. 0 Votes

    The grunion run happens annually for several months out of the year.  Grunion spawn from March through August, with peak spawning (the run) occurring in late March and into June. 

    During peak spawning, the grunion come up onto the beach on full moon and new moon nights after high tide and the hours following.  Female grunion use their bodies to dig a hole in the sand where the male deposits his milt.  Ten days later the eggs hatch and are released out into the ocean during high tide.

Please signup or login to answer this question.

Sorry,At this time user registration is disabled. We will open registration soon!