ABSTRAK

Angsana merupakan sebuah kecamatan yang berada di Kabupaten Tanah Bumbu, Angsana memiliki objek wisata yaitu pantai Angsana yang terletak di kecamatan Angsana, Kabupaten Tanah Bumbu, Provinsi Kalimantan Selatan tepatnya berada di belakang perkebunan sawit. Pantai Angsana memiliki ekosistem mangrove dan keanekaragaman biota laut termasuk bivalvia. Penelitan ini bertujuan untuk mengetahui keanekaragaman bivalvia dan untuk mengetahui kerapatan mangrove sebagai habitat bivalvia di pantai Angsana Kabupaten Tanah Bumbu. Penelitian ini menggunakan metode pengumpulan data non probality sampling yaitu purposive sampling. Pertimbangan menggunakan teknik purposive sampling dalam penelitian ditentukan berdasarkan perbedaan kerapatan jenis mangrove. Pengambilan sampel dilakuan di tiga stasiun. Ekosistem mangrove pantai Angsana memiliki kerapatan mangrove dari rendah hingga sedang dengan keanekaragaman bivalvia yang tergolong rendah pada tiap stasiun. Adapun jenis bivalvia yang ditemukan diseluruh stasiun yaitu Anadara granosa, Polymesoda erosa, Anadara antiquate, Siliqua winteriana, Trachycardium surogosum, Meretrix meretrix, Mactra violacea, Mytilus edulis dan Mactra chinensis.

Kata kunci : Keanekaragaman, Mangrove, Bivalvia, Pantai Angsana

ABSTRACT 

Angsana is a district in Tanah Bumbu Regency, Angsana has a tourist attraction, namely Angsana beach, which is located in Angsana sub-district, Tanah Bumbu Regency, South Kalimantan Province, to be precise, behind an oil palm plantation. Angsana Beach has a mangrove ecosystem and a diversity of marine life including bivalves. This research aims to determine the diversity of bivalves and to determine the density of mangroves as a habitat for bivalves in Angsana beach, Tanah Bumbu Regency. This study uses non-probability sampling data collection method, namely purposive sampling. The consideration of using purposive sampling technique in the study was determined based on the differences in the density of mangrove species. Sampling was carried out at three stations. The Angsana beach mangrove ecosystem has a mangrove density from low to medium with a relatively low diversity of bivalves at each station. The types of bivalves found in all stations are Anadara granosa, Polymesoda erosa, Anadara antiquate, Siliqua winteriana, Trachycardium surogosum, Meretrix meretrix, Mactra violacea, Mytilus edulis and Mactra chinensis.

Key words: Diversity, Mangrove, Bivalvia, Angsana Beach