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Most types of fish are only adapted to living in one type of water. Most species of stickleback can adapt to salt, brackish, or fresh water.
There is insufficient information in your question. What country? How big is the fish? Are there any markings? Some freshwater fish which have spines include, the Perch, Ruffe, Zander and Stickleback.
The main fish that eats the stickleback fish is the brown trout. There are also many birds that eat the stickleback fish.
they have to
Not at all. Fish and dolphins and such have spines, but the ocean is filled with invertebrates. Crustaceans, bivalves, molluscs, annelids, you name it.
Brook stickleback fish live to about one to two years occasionally three years.
External, like most fish.
The spines on the oral surface are softer and bend to cover the mouth of the starfish as well as the ambulacral grooves. They are basically for protection.
A type of spiky fish.
egg, baby fish ..........
a shark maybe....
Yes, they have spines. Fish are VertebratesFish are vertebrates which means that they have spines. Some types of animal which have "fish" as part of their name such as starfish and jellyfish do not, however, have spines.yes