Keanekaragaman Bivalvia di Pantai Goa Petapa Bangkalan, Madura

Abstract

Pantai Goa Petapa terletak di pesisir Pulau Madura tepatnya di Desa Sukolilo, Kecamatan Labang, Bangkalan. Pantai ini merupakan salah satu pantai wisata yang masih dikunjungi oleh wisatawan dan memiliki tipe substrat yang kompleks, yaitu berpasir, berlumpur dan sedikit bebatuan. Penelitian ini bertujuan untuk menganalisis keanekaragaman bivalvia di Pantai Goa Petapa Bangkalan, Madura. Sampel diambil dengan menggunakan metode transek kuadran dengan plot berukuran 1 m x 1 m dan koleksi bebas. Zona intertidal terbagi atas zona intertidal atas, tengah, dan bawah. Sampel diidentifikasi berdasarkan ciri morfologi dan habitat untuk dapat mengetahui jenis bivalvia tersebut. Hasil penelitian menunjukkan terdapat sembilan spesies bivalvia yang berbeda-beda masuk kedalam lima famili. Spesies bivalvia yang ditemukan meliputi Marcia hiantina, Dosinia dilecta, Gafrarium divaricatum, Placamen chloroticum, Gafrarium tumidum, Hiatella arctica, Volachlamys singaporina, Barbatia amygdalumtostum, dan Perna viridis. Keanekaragaman bivalvia di Pantai Goa Petapa, Bangkalan Madura tergolong kedalam kategori rendah. 

Goa Petapa Beach is located on the coast of Madura Island, precisely in Sukolilo Village, Labang District, Bangkalan. This beach is one of the tourist beaches that is still visited by tourists and has a complex substrate type, namely sandy, muddy, and slightly rocky. This study aimed to analyze the diversity of bivalves in Goa Petapa Bangkalan Beach, Madura. Samples were taken using the quadrant transect method with a plot measuring 1 m x 1 m and free collection. The intertidal zone was divided into upper, middle, and lower intertidal zones. Samples were identified based on morphological and habitat characteristics to determine the type of bivalves. The results showed that there were nine different species of bivalves belonging to five families. The bivalve species found include Marcia hiantina, Dosinia dilecta, Gafrarium divaricatum, Placamen chloroticum, Gafrarium tumidum, Hiatella arctica, Volachlamys singaporina, Barbatia amygdalumtostum, and Perna viridis. The diversity of bivalves at Goa Petapa Beach, Bangkalan Madura belongs to the low category.