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All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika Journal of Aquaculture and Fish Health
Fiddy Semba Prasetiya
Departemen Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health

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Journal : Omni-Akuatika

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Study of Symbiont Bacteria of Acropora digitifera Coral From Ciletuh Bay, Sukabumi by Using Culture and Molecular Approach Nurfitri Nurfitri; Fiddy Semba Prasetiya; Indah Riyantini; Yuniar Mulyani; Sulastri Arsad; Mochamad Untung Kurnia Agung
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2019.15.2.748

Abstract

Bacteria are one of the prokaryotic microorganisms that are symbiotic with coral reefs. These microorganisms help corals in secreting mucus layers which are used as a place to live for bacteria and control the presence of pathogenic bacteria in corals. The purpose of this study was to determine the diversity of bacterial communities associated with Acropora digitifera corals in Ciletuh bay, West Java, by culture approach. Sampling was carried out at a depth of 4 meters. Morphology-based identification and molecular approach based on sequence of the small ribosomal unit (16S) rRNA gene were used to determine the bacterial species in the samples. A total of six pure isolates were identified based on morphological observation and the molecular DNA characteristics from three of them were identified with 16S rRNA gene sequences. The identification using 16S rRNA gene showed that the isolate ACD.P4.PH7.P had a close relationship with the BF strain and zb strain of Bacillus flexus (acc number MH569560.1) with a similarity of 85.44 %. While ACD.P4.PH9.P isolate has a close relationship with Bacillus sp. c234 (acc number FJ950647.1) with a similarity of 98.50 %. Additionally, ACD.P4.PH9.K isolates closely related to Bacillus sp. of strain 6RM1 (acc number MK134607.1) with a similarity of 94.78 %. This study also revealed that both microscopic identifications by morphological traits and molecular approach using 16S rRNA gene can be used in bacterial diversity assessment.
A Survey of Macrozoobenthos Assemblages in a Tropical Mangrove Estuary in Brebes, Java Island Sheila Zallesa; Indah Riyantini; Sri Astuty; Yusuf Arief Nurrahman; Ibnu Faizal; Sulastri Arsad; Marine K Martasuganda; Fiddy Semba Prasetiya
Journal Omni-Akuatika Vol 16, No 1 (2020): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2020.16.1.754

Abstract

The mangrove forest in Brebes is one of the mangrove areas that were degraded due to abrasion and excessive logging in the North Coast of Java Island, Indonesia. This research aimed to analyze macrozoobenthos community structure in the mangrove forest that has not been documented. Surveys were carried out in the rainy season. In this study, a total of 10 sampling locations were divided into two different groups that represent “control” (station) and “disturbed” sites. The main structural parameters of the macrozoobenthos identified at each station were specific richness S (number of species), abundance N (number of individuals.m-2), the Shannon-Wiener index N1. A total of 346 specimens were counted from the two different stations (“control” and “disturbed”). These specimens were belonged to five animal classes, namely, Bivalvia, Gastropod, Malacostraca, Polychaeta, Cephalopoda. Pairwise comparison of the site groups with one-way analysis of similarity (ANOSIM) was not significant for between “control” and “disturbed” groups (p=0.062), where the average dissimilarity between the two stations was 88.42%. This result provides macrozoobenthos diversity and ecological information that may contribute to further conservation management in the mangrove forest in Brebes, Indonesia.
Co-Authors Eri Bachtiar Ibnu Faizal Ikha Safitri Indah Riyantini Indah Riyantini Indah Riyantini Kiki Haetami Lesta Krismawati Baeha Marine K Martasuganda Mochamad Untung Kurnia Agung Muhammad Musa Nur ALiya Zsalzsabil Nurfitri Nurfitri Saputra, Dhira Kurniawan Sheila Zalessa Sheila Zallesa Sri Astuty Sri Astuty Sulastri Arsad Sulastri Arsad sunarto sunarto Yeni Mulyani Yuniar Mulyani Yusuf Arief Nurrahman