The Kyoto Prefectural Tango Local Museum (Kokubu, Miyazu City), which is researching the local cuisine of northern Kyoto Prefecture, is conducting a survey to find out about the food culture of mackerel along the Sea of Japan coast. We will examine the situations in which sushi, fermented foods, processed products, etc. are eaten and where they are purchased, highlighting the richness of food related to mackerel.