Environmental Authorities Investigate Bull Shark Deaths in Costa Rican Estuary
Environmental authorities in Costa Rica are investigating the deaths of two bull sharks, along with rays, pufferfish, and other fish species, found in an estuary at Playa Langosta, south of Tamarindo on Guanacaste’s northern Pacific coast. This incident is particularly notable as there were no previous records of bull sharks entering this specific estuary. The Ministry of Environment and Energy (MINAE) expressed concern and, in collaboration with the National System of Conservation Areas (SINAC) and other institutions, is conducting an assessment. The investigation will examine factors such as the natural closure of the estuary's mouth, water quality, and potential effects of changing conditions linked to El Niño, including warmer water and coastal shifts. The mouth of the estuary had naturally closed about a week prior to the discovery due to sand accumulation where it meets the ocean. The Tamarindo Integral Development Association (ADIT) alerted SINAC and has filed a complaint regarding the deaths.
