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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Ucu Yanu Arbi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Library & Information Science

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ABUNDANCE AND DIVERSITY OF ECHINODERM IN PARI ISLAND, SERIBU ISLANDS Supono Supono; Ucu Yanu Arbi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 4 No. 1 (2012): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.322 KB) | DOI: 10.29244/jitkt.v4i1.7814

Abstract

Pari Island is one of the island in the Seribu Islands region. Abundance of echinoderms in Pari Island waters has been observed since 1969. In this research, data of echinoderms was collected on March 2011 applying quadratic transect method 1 x 1 m2, as well as freely collection methods using snorkel and scuba equipment. Thirteen individuals of echinoderms were collected during the study, one species (Archaster typicus) was found by quadratic transect method and 12 species of echinoderms by freely collection methods. The density of starfish Archaster typicus at the sites was between 2.1 to 4.3 individual/m2.Keywords: Echinodermata, distribution, abundance, density, Pari Island, Seribu Islands
Struktur Komunitas Moluska Bentik di Perairan Sekitar PLTU Grati, Pasuruan, Jawa Timur Ucu Yanu Arbi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 3 (2010): October 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i3.2595

Abstract

Observation on marine benthic molluscs around PLTU Grati waters in Pasuruan was conducted on May and December 2004. The aim of this study was to determine condition and community structure of benthic molluscs living in those areas. Samples were collected using Eckmann grab and sieved through 0.5 mm mesh-sized. The number of molluscs species is 28 species, consisting of 16 species class of gastropoda and 12 species class of pelecypoda. A diversity index (H) ranged 0.845 to 1.158, an evenness index (J) was 0.856 to 1 and a richness index (D) was 19.562 to 31.949. Littorina undulata (Littorinidae) was a dominant species and was relatively widely distributed. In general, this result showed that around PLTU Grati waters had a relatively low benthic molluscs diversity.
Co-Authors Supono Supono