East Kalimantan is one of the provinces with rich forest resources and diversity of flora and fauna including marine biodiversity. Balikpapan Bay is one of the important seascapes in East Kalimantan. From ecological standpoint, the bay has high biodiversity as it is where rivers from three districts/cities (i.e. North Penajam Paser District, Kutai Kartanegara District, and Balikpapan City) empty to.…