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Abstrak (Bhs. Indonesia)

ABSTRAK
Skripsi yang berjudul”Struktur Kominitas Gastropoda dan Bivalvia pada Substrat yang Berbeda di Pulau Pari, Kepulauan Seribu”. Pelaksanaan dilakukan pada bulan Agustus 2017 berlokasi di Pulau Pari, Kepulauan Seribu dan di Laboratorium Pusat Oceanigrafi – LIPI, Jakarta utara. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas gastropoda dan bivalvia pada substrat yang berbeda serta mengetahui parameter fisika dan kimia air yang sesuai untuk kehidupan gastropoda dan bivalvia di Pulau Pari, Kepulauan Seribu. 
Metode yang digunakan yaitu Trasnsek Kuadrat dengan menggunakan transek berukuran 1 x 1 meter dengan menarik garis tegak lurus sejauh 100 meter. Jumlah gastropoda dan bivalvia di dalam transek kemudian difoto, dihitung, dicatat dan diidentifikasi di Laboratorium Oceanografi – LIPI. Selain itu data primer yang didapat dibandingkan dengan penelitian sebelumnya.
	Berdasarkan hasil penelitian, didapat 191 individu gastropoda dari 6 jenis diantaranya adalah Cerithium coralium, Littoraria pallescens, Milda ventricosa, Rhinoclavis aspera, Rhinoclavis vertagus, Strombus urceus. Bivalvia yang didapat 60 individu dari 13 jenis diantaranya adalah Corbicula fluminea, Gafrarium dispar, Gafrarium pectinatum, Gafrarium tumidum, Isognomon isognomon , Malleus malleus, Nassarius margaritiferus, Pinna muricata, Pitar citrinus, Placuna ephippium, Stavelia subdistorta, Vasticardium flavum. Parameter fisika – kimia ari di perairan Pulau Pari sesuai untuk gastropoda dan bivalvia. Suhu 33 PPT, DO antara 5,61 – 6,37 (mg/l), pH 8 dan kecerahan 0,20 – 0,40 (m). Substrat yaitu berpasir sampai pasir berkarang.

Kata kunci: Gastropoda, Bivalvia, Struktur komunitas, parameter fisika-kimia, Pulau Pari.

Abtrak (Bhs. Inggris)

ABSTRACT
This practical report was about "Inventory of Intertidal Gastropods and Bivalves in Pari Island, Kepulauan Seribu ,Jakarta" the study was done on March- May 2015, it was located  in Pari Island, center of Oceanography Laboratory- LIPI, North Jakarta. This study aimed to detecting the types of Gastropods and Bivalves at Pari Island and conduct a diversity index, similarities index, and dominant index.
The method of this study was transequadrat method with 1x1 metres size of sampling sites by taking a straight line as long as 100 metres from the seashore to the sea chasm. The Gastropods and Bivalves species were found in the sampling sites were collected,counted and some of them was taken to identified according to the Center of  Oceanography Laboratory LIPI, beside on the primary data in sites ,secondary data from literature was taken as comparement.
Based on the inventory and indentified of Intertidal gastropods and bivalves in the Intertidal zone Pari Island Kepulauan Seribu, a total of 13 molluscs were identified in both, 4 of them gastropod species collected were Cerithium coralium, Littoraria pallescens, Rhinoclavis vertagus, Strombus urceus and 9 bivalves that is Gafrarium tumidum,  Pitar citrinus, Tellina virgata, Vasticardium flavum, Isognomon isognomon, Malleus malleus, Pinna muricata, Placuna ephippium, Stavelia subdistorta. The Gastropods and bivalves diversity and similarities index in the Intertidal zone ,Pari Island were in low category, while the Gastropods and mollusks dominate were in high category, which means there was a dominant species, it was Cerithium coralium.

key word: Gastropoda, Bivalvia, Struktur komunitas, parameter fisika-kimia, Pulau Pari.

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