Diversity of freshwater shrimp in South Sumatra

South Sumatra is a unique environment because it is known as a floodplain area. When the rainy season, the river system is connected to other areas. Floodplains are created by seasonal changes that affect the freshwater environment of freshwater shrimp and promote adaptations throughout all life stages of the biota living in them. This study examined the diversity of freshwater shrimp floodplain environment in South Sumatra. The study was conducted using purposive sampling on several rivers in South Sumatra. Identification was based on morphological characteristics. The study identified nine species of freshwater shrimp, divided into two groups. The first group is amphidromous, and its species are Macrobrachium equidens, Macrobrachium rosenbergii, Macrobrachium lar, Macrobrachium idea, and Caridina sumatrensis. The second group is land-lock species, including Macrobrachium lanchesteri, Macrobrachium cf. pilimanus, Macrobrachium sintangens, and Macrobrachium cf. nipponense. We used the temporary name “cf” because the sample's identification results show morphological similarities to those in previous research records.