a morsel of fish

This small bit of meat contains some veins which are coloured almost white, which contrasts with the red colour of the meat. The meat itself is a bit tough although it has been cooked.

It is a morsel of fish.
It weighs half a pound.

You identify a morsel of fish.
It is food.
It weighs seven ounces, and it is worth about five busc.
Its keywords are meat, morsel, fish-meat, and fish.