| A | B |
|---|
| Cartilaginous Fish | sharks |
| Bony Fish | 95 percent of all known species |
| Marine Fish | fish that inhabit saltwater; 58 percent of fish species |
| Littoral | fish inhabiting the water along land masses; 78 percent of all marine fish |
| Reef Fish | fish living in or near reefs |
| Pelagic | fish living in open waters |
| Estuaries | water passage where the tide meets a river current |
| Mudflats | broad |
| Salt Marshes | land subject to ocean flooding |
| Stream | natural body of water flowing in a natural channel from higher elevation to lower elevation by the force of gravity |
| Lake | body of freshwater |
| Reservoirs | have characteristics of both streams and lakes |
| Posterior | back end of the body |
| Salmonidae | trout; 39 species |
| Percidae | perches; 130 species |
| Anterior | front end of the body |
| Dorsal | back or upper surface |
| Ventral | under part or lower surface |
| Placoid Scales | scales on sharks |
| Ganoid Scales | scales on gars |
| Cycloid Scales | scales on salmonidae fish |
