Shad or Big Eye Mutsu can also be called Bluefish. They live off the Eastern Coast of North America. Mutsu (or Kuromutsu) is meaty, usually grilled and served with salt. It can be enjoyed year-round. Local shad is called Mamakari in Southwestern Japan. Ma-ma, local word for ‘rice,’ and kari ‘to borrow’ denotes how the fish is so delicious one must go and borrow more rice with which to eat all the fish.