Benefits of Having a Measuring Device Onboard

Many state natural-resource ­agencies offer free fish-ruler decals.

ruler for measuring fish
SeaDek's 36-inch fish ruler comes in four colors.Jim Hendricks / Sport Fishing

Having an accurate ­measuring device on board not only verifies the size of your catch, but also helps ensure that fish you retain meet state and federal size limits. Many state natural-resource ­agencies offer free fish-ruler decals, which can be applied along an inwale, on the deck or atop a gunwale. Many tackle stores sell such vinyl decals as well. Another style — and one of the coolest we’ve seen — is the SeaDek 36-inch fish ruler, available in closed-cell EVA foam in thicknesses of 3 mm ($25.95) and 6 mm ($42.95), each with adhesive backing. The 3 mm ruler comes in four colors: Bimini blue, olive green, storm gray and mocha. The 6 mm version is available only in storm gray over black.