Yes, just be sure it came from waters that are not polluted as you would all fish you eat. Reputable restaurants will take that worry away. It is more of a problem with fish that has been caught by you or someone you know from the wild.
Mercury levels in some types of fish from some locations are too high to eat. Check with the fish and game department in your state or with your state health department for a list of metals and other toxins in certain fish from polluted locales. There are also sometimes warnings issued and posted near waters that should not be fished.
Perch eat the same way that other fish do. They open their mouths, suck in the food and eat it. They eat a variety of things in the water.
No.
No, the pike would eat the perch. Walleyes are large members of the perch family.
They eat other fish.
Yes. They eat many species of smaller fishes, including the yellow perch.
kind of gr8.
The nile perch mostly eat tiger fish, Awaka, Nagara, insects, crustaceans, mollusks, and planktons when they are on a diet.
They eat people
Yes. It will eat anything that can fit in its mouth.
Is a yellow perch a 2nd level consumer
Bicycle chains Pianos
Yes, and other creatures.