Lamayo in the Visayas or in Palawan, in particular is the process of preserving fish or fish preparation. Usually dangit are used for lamayo, but it can be applicable to any other similar fish or bangus as in bangrus lamayo. Lamayo in their vacuum sealed bags if kept on freezer can last for months or a year as stated on the labels. But for sure in my opinion it would not last a couple of days or would be cooked straight away on most Pinoy homes.
Lamayo, similar to daing na bangus are crispy fried and served with your favorite dip of vinegar garlic and chili mixture or just plain chopped tomato. It is usually served at breakfast with fried rice and fried egg but there is no reason for not having it any time of the day.