To catch fish, the angler must first locate them. Fish are found
nearly everywhere there is water with enough food, oxygen and
cover. Near your home there should be a body of water that has
fish living in it. Not all fish can live in the same kind of
waters. Fish can tolerate different environmental conditions,
including different: - Amounts of salt - Amounts of oxygen -
Types and amounts of food - Water temperature - Hiding areas
(cover and the bottom) - Breeding areas Salinity (Amount Of
Salt) One major factor that separates fish is salt. Some fish
cannot live in areas where there is much salt and others need
salt in the water to live. However, some fish can live in both
saltwater and freshwater! Freshwater contains much less salt
than the ocean. Most ponds, reservoirs, and rivers across North
America are freshwater. Some common freshwater fish are
bluegill, carp, catfish, crappie, bass, perch, northern pike,
trout, and walleye. Many kinds of fish live in the salty water
of the oceans. A fish's kidney keeps