The island of Kakaban is an exceptional marine environment. An uplifting in the area during the Holocene transgression, 19000 yrs BC has left 5 sq ft kilometer of seawater trapped within a 165 ft ridge, turning the area into a land lock marine lake. The only other known lake of such nature found only in Palau, Micronesia, is a desert compared to Kakaban, some of the stanfest species and typical hehaviors are observed in the lake. Through millennium’s, they have adapted into an ecosystem that is totaly unique to the brackish water environment. The lake is teeming with at least 4 species of stingless jelly fish including one of an upside species of Cassiopea. About 3 species of Halimeda green algae cover the bottom, and mangrove roots live side by side with tunicates, sponges, tube worms, bivalves, crustacean, anemonies, sea cucumbers, sea snakes and at least five known species of gobies. Unidentified species are in abundance.
The mystery of how the lakes plants and animals are able to survive in this isolated system is a subject that marine scientists and geologists bicker about.
Thousands of barracuda, blue finned tunas and big sharks are also found at Kakaban’s Barracuda point
Some of the strangest species and typical behavios are observed in the lake. Through millennium, they have adapted into an ecosystem that is totally unique to the brackish water environment