This is a fish market.
There are dozens of different kinds of fish being sold. Most of them have Native
names, so are hard for me to remember and pronounce. They all taste
delicious.
One kind of Brazilian fish is as big as an adult man. It is too heavy to carry whole. The fish section also had fresh tuna (not canned!), and other seafood, such as shrimp.
Most people in Brazil live along the water (coastline or river's edge.) So many, many people eat fish and other seafood. I got to go scuba diving, and visit the fish live!