If you are a fisherman looking to know more about the fish you want to catch, or just want to know more about those water dwelling creatures, you should visit Fishbase.org.
The site has information on all known fish species. You can search for each fish many different ways. The common name is probably the easiest way to identify a fish. Just type it in to find information on trout, salmon, or regular goldfish. For the scientists among us, you can search for fish by using the genus and the species. This is better than using the common name, as you will find the information you desire quicker. If you want to find the fish in your area, you can search by country or island. This also helps you plan a fishing trip, allowing you to see what species dwell where. Fishbase.org is a great resource for information on all types of fish. 
