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Journal : Scripta Biologica

KEANEKARAGAMAN UDANG AIR TAWAR (DECAPODA: CARIDEA) DI SUNGAI BATUSUYA, SULAWESI TENGAH, INDONESIA Diky Dwiyanto; Fahri Fahri; Annawaty Annawaty
Scripta Biologica Vol 5, No 2 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1113.417 KB) | DOI: 10.20884/1.sb.2018.5.2.821

Abstract

Sulawesi is one of the four Greater Sunda Islands characterized by rivers and lakes habitats of freshwater shrimps and prawns with a high degree of endemism. The freshwater shrimp and prawns diversity in the Batusuya river of Donggala is less studied compared to the ancient lakes in the Central Sulawesi area. This study aimed to determine the diversity of freshwater shrimp and prawns of the Batusuya river. The sample was collected in November 2016 using tray net. The study site divided into three sampling stations based on the type of habitat. Nine species of freshwater shrimps and prawns were found, i.e., Macrobrachium australe, M. esculentum, M. horstii, M. lar, M. placidulum, Caridina brevicarpalis, C. gracilipes, C. weberi, and Atyopsis spinipes. Six species were found in all localities including Macrobrachium australe, M. esculentum, M. horstii, M. lar, C. brevicarpalis, and C. gracilipes, while M. placidulum, C. weberi, and A. spinipes were not found in all stations. The highest diversity index (H') was found in the station III indicated freshwater shrimps and prawns favored the environmental conditions of this station. The highest measure of species richness (R) was found in the station I and presumably related to the life cycle of freshwater shrimps and prawns which is amphidromous. The occurrence of nine species of freshwater shrimps and prawns along the Batusuya river indicated the environmental condition of the stream was suitable for most freshwater shrimps and prawns, and the Macrobrachium australe was found as the most abundant species.
KEANEKARAGAMAN ECHINODERMATA (ECHINOIDEA DAN HOLOTHUROIDEA) DI PULAU BAKALAN, BANGGAI KEPULAUAN, SULAWESI TENGAH, INDONESIA Moh Reza Sese; Annawaty Annawaty; Eddy Yusron
Scripta Biologica Vol 5, No 2 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1038.773 KB) | DOI: 10.20884/1.sb.2018.5.2.812

Abstract

The coastal zone of Indonesia, especially in the eastern archipelago, is composed of typical tropical small island ecosystems such as estuaries, coral reefs, seagrass meadows, algal beds, and sandy beaches which are habitats of many groups of marine organisms including Echinoderms. The biodiversity of many small islands in this area was understudied, including Bakalan Island of Banggai Islands in Central Sulawesi. The purpose of this study was to determine the diversity of Echinoderms (Echinoidea and Holothuroidea) in Bakalan Island. This study applied the purposive sampling technique with the 2 x 2 m quadrats were placed along a 100-meter transect with ten-meter intervals. There are nine species of echinoderms found in this study including Salmacis sphaeroides, Mespilia globulus, Tripneustes gratilla, Echinometra mathaei, Diadema setosum, D. savigny, Echinothrix calamaris, Holothuria atra, and Synapta maculata. The first seven species belonging to the class Echinoidea while the latter two belong to the class Holothuroidea.