Distribusi dan Kelimpahan Meiofauna di Perairan Kuala Jeumpa Kecamatan Jeumpa, Kabupaten Bireuen

This study was conducted to determine the abundance and distribution of meiofauna in the Kuala Jeumpa waters, Jeumpa subdistrict, Bireuen regency. Sampling was conducted in April until May 2016. Purposive sampling method was used to determine the 3 stations of data collection, which includes downstream, upstream and estuary area, and then the data was analyzed in the laboratory. The results obtained from the abundance of meiofauna ranging from 222 ind/m2 - 3963 ind/m2 was made up of an abundance of Acarina sp. 222 ind/m2, abundance of Annulonemertes sp. 593 ind/m2, abundance of Cumacea sp. 481 ind/m2, abundance of Cyatholaimus sp. 3963 ind/m2, abundance of Eggerelloides scabrous 630 ind/m2, abundance of Kalipthorincia sp. 1037 ind/m2, abundance of Patagonacyther senescens 556 ind/m2, abundance of Syllides sp. 1593 ind/m2 and an abundance of Decapoda 407 ind/m2. Meiofauna with the highest abundance in the Kuala Jeumpa waters is Cyatholaimus sp. and the lowest was Acarina sp. Distribution Acarina sp. to Decapoda is clustered. The conclusion that the abundance of meiofauna ranging between 222 ind/m2 - 3963 ind/m2. The types of sediment are smooth sand and medium sand