Show fish out of place nicaragua contains the tha only frosh water take lake known to science in which big saltwater salt water fish abound says national geographic society sawfish ot of more than pounds sharks up lip to pounds tarpon and other landlocked ocean dwell er cro are caught dally daily in ill the waters of oval lake nicaragua IM miles long and feet above the level of the nearby pacific ocean geologists explain the oddity by saying the take lake was a bay of the ocean until un an earthquake lifted its basin locking outtie out the sea streams ted fed by the regions heavy tropical rain rainfall fall gradually have t nned the lake water fresh |