Fergus: Cuba is essentially "fished out" due to the continuing lack of food. Realize this is a country that must import 75% of their food consumption due to an agricultural system that is dysfunctional because of a 50 year attempt of manage it by central government control. The food problem became critical when the former Soviet Union, Cuba's economic lifeline, collapsed in the early 1990's. That was when Cubans lost an average of 12 pounds each simply because there was not enough food to eat. So any natural resource containing calories, especially protein, was not managed but consumed until depleted. Cubans have no compulsion about capturing and eating green sea turtles, an endangered species. Even manatees, those large docile mammals that we love to swim with, are nearly depleted in Cuba as they were killed for food.
One still sees Cubans fishing from the seashore but everything caught, regardless of size and species, is kept for food. Nothing is thrown back because it is too small or does not have a favorable taste.