Whether the newcomer will fill the
dorado's ecological role or prey on different fish and thus skew species assemblages is unclear, says Carlos Cañas, a river ecologist at the Wildlife Conservation Society here, who plans to monitor the migration of
large catfish in the watershed.
Fishing trips in Golfito means
large Pacific sailfish, blue marlin, black marlin, striped marlin, tuna,
dorado, wahoo, roosterfish, snapper, grouper and numerous more game fish.