Well, the government’s Instituto Costarricense de Pesca y Acuicultura has a cheat sheet.
There is a very low likelihood of running into a fish at a neighborhood cocktail party unless it is on a plate. But fishing fans have the problem all the time.
The institute has been the subject of a lot of criticism, in part because of an apparent blind eye to shark finning.
However, the institute Web site had row after row of fish that might be raised commercially, like tilapia or that can be found in the Gulf of Nicoya.
Who knew that there were so many species there? Who knew that there were so many named corvina?
The institute site also has a number of useful links for fishing captains and others who know the regional fishing news, including red tides. The site also has a link to a NASA contractor that provides satellite shots. Such information is vital for predicting the weather.