pesut
Pesut, the Indonesian name for the Irrawaddy dolphin (Orcaella brevirostris), is a small to medium-sized toothed whale that inhabits brackish and coastal waters. In Indonesia, the pesut is best known from the Mahakam River in East Kalimantan, where long-term observations have documented its presence and behavior.
Taxonomy and description: Orcaella brevirostris belongs to the family Delphinidae. Pesut have a robust, fusiform body,
Habitat and distribution: They live in estuaries, river mouths, and shallow coastal zones. In Southeast Asia
Behavior and diet: Pesut are social, usually occurring in small groups. They surface to breathe and often
Reproduction: Sexual maturity is reached after several years. Gestation lasts about 10-12 months, and calves stay
Conservation: The IUCN lists the Irrawaddy dolphin as Endangered. Main threats include bycatch in gillnets, habitat