I see you are in the northwest. I believe bluefish are limited to the east coast. They are voracious predators that migrate in large schools up and down the eastern seaboard. Not certain if they get all the way to Florida but they come up the coast to Maine in early summer and then back down south at the end of summer. They grow up to 15-20 lbs but most are caught in the 4-8 lb size. They bite at virtually anything so shiny lures rather than bait are typically used. When they are biting it's common to get half a dozen in ten minutes. They're dangerous to fingers once landed so are usually stunned with a bat before removing the hook.
They must be eaten fresh or smoked as they are very oily and don't preserve well with freezing. Relatively strong taste compared to white fish and stronger than salmon. Some folks love it and others don't. Smoked bluefish in a cream cheese spread is heaven.
John Hersey (the reporter who documented Hiroshima in 1946) wrote an interesting book called "Blues" that cleverly discusses the marine biology, angling and cooking of bluefish off Martha's Vineyard where he lived. If you are interested in learning about bluefish and why east coast fishermen get excited when the blues are running it is a great read.