Morels mean spring, peaches summer. Autumn brings pumpkins, and winter citrus. But fruits and veggies don't have a monopoly on seasonality.

"There are certain seasons for fish," said Harry Mahleres, director of purchasing for Seattle Fish, a major seafood supplier to many local restaurants. "Halibut and salmon are the two big ones that come to mind right off the bat."

Halibut season opened in early March for Alaska and Canada, and will stay open until November 15. But talking about salmon season is like talking about berry season; there are so many different kinds, it's impossible to lump them all together. Not only are there King, Sockeye, Chum, Coho and Pink Salmons, but where they run is another subset. The Copper River season (King and Sockeye) opened this week, and is a 30-day opener, while the Kodiak season won't open until June. Over the course of the next few days, wild salmon will be available in local grocery stores, fresh off the boats.