To Catch A Fish

So I asked my language teacher about how to select fish at the market (there are so many kinds and I am not familiar with any of them).

She explained that the Chinese classify their fish by the number of bones; they believe the fish that has the greatest number of bones also has the greatest flavor, because the meat is precious.

She also explained that there are fish from the river and fish from the sea, and that the fish from the sea has a strong fish flavor, so the Chinese prefer the fish from the river.