SEBARAN SPASIAL FORAMINIFERA DALAM KAITANNYA DENGAN KEDALAMAN LAUT DAN JENIS SEDIMEN DI TELUK BONE, SULAWESI SELATAN

Abstract

Sebanyak 25 sampel sedimen dasar laut dari Teluk Bone bagian utara, Sulawesi Selatan telah digunakan untuk analisis foraminifera dalam kaitannya dengan jenis sedimen dan kedalaman. Hasil analisis diperoleh 97 spesies foraminifera bentik dan beberapa genera diantaranya mendominasi titik lokasi tertentu, seperti Amphistegina, Operculina, Heterolepa, Brizalina, Elphidium dan Quinqueloculina.Setiap genus mempunyai distribusi spasial tertentu sesuai habitatnya dengan beberapa anomali. Kisaran kedalaman daerah penelitian antara 23 dan 85 m dicirikan oleh kehadiran Amphistegina, Cibicides, Rotalia, Cavarotalia. Dalam kaitannya dengan kedalaman, sebaran foraminifera cenderung terakumulasi di sebelah timur daerah penelitian. Setiap satuan sedimen dicirikan oleh genus foraminifera tertentu.

Kata kunci: foraminifera, distribusi spasial, kedalaman laut, jenis sedimen, Teluk Bone, Sulawesi Selatan


A total of twenty five surface sediment samples from the northern part of Bone Bay, South Sulawesi were selected for foraminiferal study. The purpose of this study is to recognize spatial distribution foraminifera in relation with water depth and sediment types. There are 97 identified species, some ot them are dominant at certain sites, such as Amphistegina, Operculina, Heterolepa, Brizalina, Elphidium and Quinqueloculina. Each genus has certain spatial distribution as its habitat with some anomalies. The range of water depth is between 23 and 85 m that characterized by Amphistegina, Cibicides, Rotalia, Cavarotalia. In relation to water depth, the distribution of foraminifera tends to accumulate in the eastern part of the study area. Sediment unit is characterized by certain foraminifera genus.

Keywords : Foraminifera, spatial distribution, water depth, sediment type, Bone Bay, South Sulawesi.