Forage Fish Surveys

A group of us, as trained citizen volunteers, go to various beaches several times a month to "survey" for surf smelt eggs.  Surf smelt are "forage fish" that are about 6 " long, travel in large schools, and are an important food for bigger fish and birds - (and people.)  They spawn (lay and fertilize eggs) in large numbers on sandy/gravelly beaches at the high tides.  After maybe 2 weeks, some of the eggs hatch into tiny fish and get back out into the water to grow and prosper and sustain the food web of life!

We collect samples of sandy gravel, process the gravel through sieves and a swirling bowl of water, and finally capture any eggs in a jar.  We also document the beach location and conditions, such as amount of shading and the amount of restoration.  The eggs can be examined with microscopes to determine how many there are and how close they may be to hatching. Eventually the eggs and all of the paperwork go to the Washington State Department of Fish and Wildlife.

Our work provides an inventory of how much spawning and hatching there is, and where.  Beaches with documented spawning are well protected by regulations from any disruptions.  Our data also can show long term trends and alert agencies to possible problems and places where some restoration with better gravel or shade could enhance spawning and hatching success.

  

 04wrkn

 

 

 

 

 

 

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