Maybe the Purest Marine Ecosystem on the Planet
Tuesday, October 6th, 2009So claimed the marine biologists of Expedition NatGeo about the clear blue waters off Costa Rica’s famed Isla del Coco. Isla del Coco is one of the most biologically diverse ecosystems known to man with some 1,400 species of marine animals and plants. For three weeks these scientists made daily dives in these waters, searching for new species and studying this habitat that so attracts the thousands that are teaming in these warm Pacific waters. They currently believe to have found at least ten new species, never before know to man. The reaction of the scientists is that Isla de Coco is an absolute marvel of nature. Why? They give two specific reasons. First is the incredible number of large predator fish that inhabit these waters, especially sharks. Virtually every type of shark that swims in the Pacific can be found there and in great quantities. This signifies an ecosystem that is extremely healthy and robust because these predators, being at the very top of the marine food chain, have to have something to eat. And here they never go hungry! Secondly, the scientists note the mind-boggling abundance of species of small fish, medusas, corals, micro-organisms and algaes. As healthy as the ecosystem of Coco is, it is not immune to risk. The chief among them is the illegal fishing that goes on there, despite the strenuous efforts of park guards, and marine conservation organizations like MarViva. Although the main thrust of the expedition was to explore the submerged mountains located about 35 kilometers off the coast of Coco, known as Las Gemelas, weather allowed only four dives to take place there. The team hopes to return to learn more about this amazing area.

















