Suprabadevi Ayumayasari Saraswati
Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana, Bukit Jimbaran, Kabupaten Badung, Provinsi Bali-Indonesia

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Distribusi Teripang (Holothuroidea) Pada Perairan Pesisir Nusa Lembongan, Kecamatan Nusa Penida, Kabupaten Klungkung, Bali Deptson Baringin Silaen; I Wayan Arthana; Suprabadevi Ayumayasari Saraswati
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.051 KB) | DOI: 10.24843/jmas.2018.v4.i02.263-270

Abstract

Sea cucumbers have a high economic potential and widely used by the community as food with nutrient content and high enough protein. The occurrence of an organism, including sea cucumbers in a waters is determined by the environmental factors of the waters, one of which is habitat. This study aims to determine the distribution of sea cucumbers (Holoturoidea) in the Coastal Waters of Nusa Lembongan, District Nusa Penida, Klungkung regency, Bali. This research was conducted in April-May 2017 in the Coastal Waters of Nusa Lembongan. This study looked at the distribution of sea cucumbers (Holoturoidea), substrate composition, physics-chemical parameters of waters (temperature, depth, salinity, pH, dissolved oxygen) and their relation to habitat conditions spread over Nusa Lembongan Coastal Waters. Data analysis in this study include the composition of sea cucumber, density of sea cucumber, the diversity of sea cucumber, and distribution of sea cucumbers. The results of the research conducted found 4 species of sea cucumber namely the type of Holothuria atra, Bohadchia vitiensis, Holothuria fuscocinerea and Holothuria sp. Physical-chemical parameters of the waters obtained in the research results are still categorized normal for the survival of sea cucumbers. Distribution of sea cucumbers during the study obtained by the results pattern of dispersal is clumped in all station with the index distribution value from 1.72 to 6.60.
Sebaran dan Struktur Komunitas Moluska di Pantai Mertasari Kota Denpasar, Provinsi Bali Ni Komang Ayu Sukawati; I Wayan Restu; Suprabadevi Ayumayasari Saraswati
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.176 KB) | DOI: 10.24843/jmas.2018.v4.i01.78-85

Abstract

The research objectives were to investigate the distribution and molluscs community structure in Mertasari beach, Denpasar-Bali. The research area was divided into 2 sites, the first site (I) has sandy substrate and second site (II) has muddy sand substrate. This research used quadrat transects systematic sampling method with 1x1 m2 quadrat. The data of the research were analyzed used Microsoft Excel. It was conducted from January to March 2017. The research result shows that the structure of molluscs in Mertasari Beach was support by 31 species richness of 25 species from gastropods and 6 species of bivalves. The density number of the molluscs was 124.5 ind/m2. The diversity index of the molluscs ranged from 2.29 to 2.58 were category as moderate diversity, the evenness index ranged 0.83 to 0.87 were category as high evenness, the dominance index ranged from 0.09-0.13 were category as low. the index number indicates that the ecological condition at Mertasari beach was in good condition so it is suitable to support the molluscs community livelihood. Which was supported by water quality value of dissolved oxygen at Mertasari beach ranged from 4-6.7 mg/l, pH waters ranged from 7.39-7.74, water temperature ranged from 25.9-29oC, water salinity ranged from 9-29 ppt. The distribution pattern of 31 species of molluscs were in groups (Id>1).