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All Journal HAYATI Journal of Biosciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Buletin PSP Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Forum Pasca Sarjana Maspari Journal AGRISAINS JURNAL PERIKANAN DAN KELAUTAN TROPIS ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Akuatika Berkala Perikanan Terubuk POSITRON Maspari Journal Jurnal Penelitian Hutan Tanaman Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Bisnis Perikanan Journal of Indonesian Coral Reefs Jurnal Kelautan Tropis Omni-Akuatika BULLETIN OF THE MARINE GEOLOGY Marine Research in Indonesia Biosaintifika: Journal of Biology & Biology Education Indonesian Aquaculture Journal Jurnal Segara Jurnal Sosial Ekonomi Kelautan dan Perikanan JURNAL PERIKANAN TROPIS
Dietriech Geoffrey Bengen
Departemen Ilmu Dan Teknologi Kelautan, FPIK, Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences Other

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EVALUASI KEBERLANJUTAN EKONOMI PERIKANAN CAKALANG DENGAN KAPAL SEKOCI PADA ZONA EKONOMI EKSKLUSIF SAMUDERA HINDIA Nur, Andi Irwan; Boer, Mennofatria .; Bengen, Dietriech, G.; Subandar, Awal .
Jurnal Bisnis Perikanan Vol 1, No 1 (2014)
Publisher : Program Studi Agrobisnis Perikanan, Fakultas Perikanan dan Ilmu Kelautan, UHO

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Abstract

A research on evaluation of economic sustainability status skipjack fisheries has been done using Rapfish estimation techniques which are simple, easy attribute to assess considering time and cost, and can be applied to various aspects of the assessment. Evaluated economic sustainability indicators are 10 attributes. Analysis result shows that all attributes are generally in unsatisfactory conditions. Other incomes sources is the most sensitive attribute for enhancing economic sustainability with root mean square value 5,36 followed by Marketable Right, Limited Entry, and. Ownership/transfer attributes with root mean square value 4,92, 4,28, and 4,18 respectively. The values of other economic attributes are relatively low ranging from 1,08 to 3, 89 indicating a slighter sensitivity. Such economic sustainability performance of the fisheries requires responsive policy interventions.
Distribution and Abundance of Black Band Disease on Corals Montipora sp in Seribu Islands, Jakarta Johan, Ofri; Bengen, Dietriech G; Zamani, Neviaty P; _, Suharsono
Journal of Indonesian Coral Reefs Vol 1, No 3 (2012)
Publisher : Journal of Indonesian Coral Reefs

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Abstract

Research on the abundance and distribution of coral disease has been implemented since June andJuly 2011 to determine the preliminary abundance of coral disease on several islands in the Thousand Islands, Jakarta. Observation method used was a 20m-belt transect with 1 m width to the left and right, and 3 replicates. Transects placed on the reef flat with a depth of 0–3 m, and a record number of infected colonies of BBD. The results show that type coral diseases of BBD found in many high coral covers and where Montipora sp dominant at that location. Generally, highest abundances found were at northern of Pramuka Island (0.15 col/m), eastern of Pari Island (0.092 col/m), Penjaliran Island (0.092 col/m), and Tikus Island (0.085 col/m). Statistical test by ANOVA obtained that abundance of BBD was significantly different between groups of study sites, i.e. the distance between the nearest and middle sites, and between the nearest and farthest distance from the mainland of Java Island (significantly difference with value respectively 0.030 and 0.025; confidence level 5%). Meanwhile, the sites between middle and farthest show no real difference. Based on climatological data, the increase in temperature in March and July could lead to coral diseases that occured in the Thousand Islands region.
Harmful Algal in Banyuasin Coastal Waters, South Sumatera Aryawati, Riris; Bengen, Dietriech Geoffrey; Prartono, Tri; Zulkifli, Hilda
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 2 (2016): September 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i2.6356

Abstract

Phytoplankton have important as food-chain major component and primary production of marine environment. However, high abundance of phytoplankton could give harmful effects toward water ecosystem. Moreover, they could produce toxic substances that will be accumulated within their consumer. This accumulation could be dangerous for human or animals.This research were aimed to determine and calculatespecies of harmful algae in Banyuasin coastal waters. The study was conducted on April, June, August, October and December of 2013, and in February 2014, at ten stations. Phytoplankton samples were taken vertically using plankton nets. In the form of cone-shaped with a diameter of 30 cm, length 100 cm and mesh size 30 ?m.The result showed that there are 35 genera of phytoplankton. That have been found and consisted of four groups; Bacillariophyceae, Dinophyceae, Cyanophyceae and Chlorophyceae. 13 species were identified as Harmful Algal (Chaetoceros, Coscinodiscus, Nitzschia, Skeletonema, Thalassiosira, Alexandrium, Ceratium, Dinophysis, Noctiluca, Protoperidinium, Prorocentrum, Anabaena dan Oscillatoria), with seven of them were known for having toxin (Nitzschia, Alexandrium, Dinophysis, Protoperidinium Prorocentrum, Anabaena and Oscillatoria). Monitoring result showed that the highest number of species of potential harmful algal blooms (HABs) occured in June and the highest abundance occured in August, especially Chaetoceros and Skeletonema.How to CiteAryawati, R., Bengen, D. G., Prartono, T., & Zulkifli, H. (2016). Harmful Algal in Banyuasin Coastal Waters, South Sumatera. Biosaintifika: Journal of Biology & Biology Education, 8(2), 231-239.
The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics Setiabudi, Gede Iwan; Bengen, Dietriech G.; Effendi, Hefni; Radjasa, Ocky Karna
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 3 (2016): December 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i3.6549

Abstract

The aimed of this study was to determine the plankton communities and its relationship with the chemical and physical condition in seagrass ecosystem at Pegametan Bay. The composition and abundance of plankton were observed in the sea water underneath the surface and were identified based on the guideline of Illustration of the Marine Plankton of Japan. The water quality was measured in situ using WQC HI 9829. The water sample was measured using closed reflux spectrometry for COD, TOC analyzer for DOC and APHA 2102 (4500) method for Nt and Pt. There are 27 species of plankton identified, which can be classified into three groups. Diatom group consists of 18 species with a 74.56% abundance. The non-litoral group consists of 6 species with a 23.35% abundance. Moreover, dinoflagellate group consist of 3 species with a 2.09% abundance. An abundance of plankton greater than 104 cell.L-1 was found in diatome group (Nitzschia sp., Thalassiosira sp., Chaetoceros sp., Flagillaria sp., Thalassiothrix sp., and Melosira sp.) and non-litoral group (Oscillatoria sp. and Spirogyra sp.). The abundance of those species indicated the algae bloom phenomenon. Dinophysis sp. was also identified, which was harmful algal blooms.How to CiteSetiabudi, G. I., Bengen, D. G., Effendi, H., & Radjasa, O. K. (2016). The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics. Biosaintifika: Journal of Biology & Biology Education, 8(3), 257-269.
SPATIAL VARIATION IN POPULATION CHARACTERISTICS OF VENUS CLAM GAFRARIUM TUMIDUM RÖDING, 1798 (BIVALVIA: VENERIDAE) IN AMBON BAY, MALUKU Islami, Muhammad Masrur; Bengen, Dietriech Geoffrey; Dody, Safar
Marine Research in Indonesia Vol 43, No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.372 KB) | DOI: 10.14203/mri.v43i2.256

Abstract

Ambon Bay consists of two regions i.e. Inner and Outer Ambon Bay that was separated by Galala-Poka sill. Consequently these waters have different local environmental conditions that leads to the bivalve populations differences, one of them is venus clam Gafrarium tumidum. In this study, the distribution and spatial variation in population characteristics of of venus clam was quantified based on the analysis of their twelve shell dimensions from different populations. Fieldwork and analyses were conducted on April – Juni 2013. Total of 585 individuals of venus clam were found and could be divided into ten size-classes and three size categories i.e. small (< 23.11 mm), medium (23.12–32.05 mm) and large size (> 32.06 mm). The highest size-class density was found at medium size. Spatial distribution was related to the characteristics of sediment and other potential factors. Result of discriminant analysis showed that shell-width (SW) was the variable with the highest discriminating power and distinguishing between Inner and Outer Ambon Bay populations.
SPATIAL VARIATION IN POPULATION CHARACTERISTICS OF VENUS CLAM GAFRARIUM TUMIDUM RÖDING, 1798 (BIVALVIA: VENERIDAE) IN AMBON BAY, MALUKU Islami, Muhammad Masrur; Bengen, Dietriech Geoffrey; Dody, Safar
Marine Research in Indonesia Vol 43 No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.372 KB) | DOI: 10.14203/mri.v43i2.256

Abstract

Ambon Bay consists of two regions i.e. Inner and Outer Ambon Bay that was separated by Galala-Poka sill. Consequently these waters have different local environmental conditions that leads to the bivalve populations differences, one of them is venus clam Gafrarium tumidum. In this study, the distribution and spatial variation in population characteristics of of venus clam was quantified based on the analysis of their twelve shell dimensions from different populations. Fieldwork and analyses were conducted on April – Juni 2013. Total of 585 individuals of venus clam were found and could be divided into ten size-classes and three size categories i.e. small (&lt; 23.11 mm), medium (23.12–32.05 mm) and large size (&gt; 32.06 mm). The highest size-class density was found at medium size. Spatial distribution was related to the characteristics of sediment and other potential factors. Result of discriminant analysis showed that shell-width (SW) was the variable with the highest discriminating power and distinguishing between Inner and Outer Ambon Bay populations.
PENGELOLAAN EKOSISTEM MANGROVE PULAU-PULAU KECIL TAMAN NASIONAL BUNAKEN BERBASIS KERENTANAN N.W. Schaduw, Joshian; Yulianda, Fredinan; G. Bengen, Dietriech; Setyobudiandi, Isdradjad
AgriSains Vol 12, No 3 (2011)
Publisher : FAPETKAN UNTAD

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Abstract

Mangrove ecosystem has many functions for coastal area, such as, functions of ecology, social and economic. These functions lead to systemic impact toward other coastal ecosystem environment and human life. Through mitigation, this function can be optimized to minimize the degradation of small island environment. This research analyzed the existing condition of mangrove ecosystem, vulnerability of small islands, and also pattern and management strategy of mitigation based on mangrove ecosystem. This research used both primary and secondary data. Primary data was gathered by sampling field observation, questioner, open interview and in-depth interview in the research area. Secondary data was gathered by literature review and from related institutions. Vulnerability index was analyzed using multi dimensional scaling method whereas vulnerability mapping was analyzed by analysis of geographic information system using the software Archieve Project 3.3. The results of this research was the mangrove ecosystem of small islands in Taman Nasional Bunaken needs to be better managing, considering the increasing rate of degradation and threats to these ecosystems. Nain Island was the most vulnerable island toward the threat of damaging ecosystems by human activities and natural factors. Management scheme which can accommodate a variety of problems faced by the mangrove ecosystems of small islands was collaborative management by the government as the leading sector with the highest priority on the management of the ecological dimension. Key words : Management, mangrove ecosystem, small island, vulnerability.
PENGELOLAAN EKOSISTEM MANGROVE BERBASIS MITIGASI (Kasus Pulau-Pulau Kecil Taman Nasional Bunaken) N.W. Schaduw, Joshian; Yulianda, Fredinan; G. Bengen, Dietriech; Setyobudiandi, Isdradjad
AgriSains Vol 13, No 2 (2012)
Publisher : FAPETKAN UNTAD

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Abstract

Small islands is an area that is susceptible to various factors. One of the factors influencing the ecological factors. These ecological factors include climate change, sea level rise, natural disasters, abrasion, sedimentation, erosion and pollution. To minimize vulnerability the effectiveness of these coastal ecosystems is urgently needed. This research analyze vulnerability of small island, mangrove ecosystem effectiveness and management strategy of mangrove ecosystem based mitigation. This research use both primary and secondary data primer data was gathered by sampling, field observation, and questioner analysis Vulnerability index was analyzed using multi dimensional scaling method whereas vulnerability mapping was analyzed by analysis of geographic information system using the software Archive project 3.3. Stakeholders analysis was used for patterns and strategic management, through a technique SMART (Simple multi attribute rating technique) using the software Criterium decision plus. The results from this research are Bunaken Island have the highest vulnerability level, followed by the island of Manado Tua, Nain and the lowest Mantehage island. The main factors of vulnerability in small island Bunaken National Park  is the area of mangrove ecosystems. Increased area of mangrove ecosystems will increase the effectiveness of mangrove ecosystems as a buffer zone as well as increase the capacity of these ecosystems on the social, economic, and governance dimension. Management scheme which can accommodate a variety of problems faced by the mangrove ecosystem of small islands is collaborative management by the government as the leading sector, with the highest priority on the management of the ecological dimension. Key words : Management, Mangrove ecosystem, mitigation, small island.
OPTIMASI PEMANFAATAN WISATA BAHARI BAGI PENGELOLAAN PULAU-PULAU KECIL BERBASIS MITIGASI (Kasus Kawasan Gili Indah Kabupaten Lombok Utara Propinsi Nusa Tenggara Barat) Amir, Sadikin; Yulianda, Fredinan; G.Bengen, Dietriech; Boer, Mennofatria
AgriSains Vol 12, No 3 (2011)
Publisher : FAPETKAN UNTAD

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Abstract

The increasing of tourism activities magnified by uncontrolled land use patterns have caused coastal ecosystem degradation in Gili Indah. A research on  evaluation of land use patterns and optimization of coastal tourism based on a mitigation approach has been done in the area.  Research results showed that size of area including in a very suitable category for diving activity were 216.79 ha; 190.84 ha for snorkeling activity; and 19.83 ha for beach tourism.  Based on carrying capacity analysis the area can support maximum 286 tourists per day or 104.390 tourists annually.  Mitigation approach in optimization indicates that the maximum tourist number in the area can only be reached if all aspects of carrying capacity namely ecological, economics, social and institutional aspect are well considered. Key words : Carrying capacity, coastal tourism, mitigation, optimization.
DISTRIBUSI KARANG DAN IKAN KARANG DI KAWASAN REEF BALL TELUK BUYAT KABUPATEN MINAHASA TENGGARA Manembu, Indri; Adrianto, Luky; Bengen, Dietriech G; Yulianda, Ferdinan
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 8, No 1 (2012)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.013 KB) | DOI: 10.35800/jpkt.8.1.2012.342

Abstract

Penempatan reef ball di perairan Teluk Buyat dan sekitarnya telah dilakukan pada tahun 1999 oleh PT. Newmont Minahasa Raya. Tujuan penempatan reef ball untuk membangun habitat berbagai biota yang berasosiasi dengan karang sehingga dapat meningkatkan populasi ikan ekonomis penting. Kehadiran ikan karang pada reef ball sangat penting secara ekologis dan ekonomis. Penurunan kualitas terumbu berarti hilangnya nilai ekonomi barang dan jasa, serta hilangnya jaminan makanan dan pekerjaan untuk masyarakat pesisir, yang umumnya hidup dalam kemiskinan. Secara keseluruan, komposisi spesies ikan yang ditemukan di reef ball terdiri dari 19 famili, 34 genus, 50 spesies dan 290 individu, yang tertinggi dihuni oleh jenis dari famili Mullidae. Seiring dengan bertambahnya waktu dan usia reef ball, beberapa spesies terlihat sudah menetap seperti Lutjanus kasmira, dan beberapa spesies dari famili Acanthuridae. Keberadaan reef ball membantu terbentuknya ekosistem terumbu karang yang baru dan meningkatkan kesuburan perairan, sehingga lebih meningkatkan keberadaan komposisi ikan karang, yang pada akhirnya meningkatkan pendapatan nelayan dari hasil tangkapan ikan karang.Kata kunci: Reef ball, karang batu, ikan karang Distribution of Coral Reefs and Fish in Buyat Bay Area Reef Ball Southeast Minahasa Regency The placement of reef ball in Buyat Bay and surrounding areas have been carried out since 1999 by PT. Newmont Minahasa Raya. The goal of this placement was to build a habitat for many biota associated with reef thus may improve economically important fish populations. The presence of reef fish on the reef ball is indispensable ecologically and economically. Furthermore, the degradation of reefs might cause the disappearance of economic value of goods and services, as well as the disappearance of food security and employment for coastal communities, who generally live in poverty. Overall, the composition of fish species found in the reef ball consists of 19 families, 34 genera, 50 species and 290 individuals, the highest inhabited by species of the family Mullidae. As time went by and the increase of reef ball age, some species seem have settled down such as Lutjanus kasmira, and several species of the Acanthuridae family. In addition, the presence of reef ball helps the formation of a new coral reef ecosystem and increase the fertility of waters, therefore enhancing the presence of reef fish composition, which might increases the income of fishermen. Keywords: Reef ball, coral reef, reef fish  
Co-Authors . Ahyar . Chaidir . Suharsono Abdul Harim Abdul Motalib Angkotasan Abdullah Hisam bin Omar Abimanyu Takdir Alamsyah Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achyani, Ratno Aditya Hikmat Nugraha Agus Atmadipoera Agus Atmadipoera Agus Sholeh Atmadipoera Agustin Rustam Ahmad Najid Al Azhar Al Azhar Alimudin Laapo An Nisa Nurul Suci Andi Irwan Nur Andi Irwan Nur, Andi Irwan Angela Mariana Lusiastuti Audina Putri Awal . Subandar, Awal . Awal Subandar Beginer Subhan Bintal Amin Budi Hascaryo Iskandar Budy Wiryawan Burhanis Burhanis Chaidir Chaidir Dafit Ariyanto Damar, Ario David Smith Dedi Soedharma Dondy Arafat Efriyeldi, Efriyeldi Erlania Erlania Etty Riani Fauzan Dzulfannazhir Ferdinan Yulianda FERY KURNIAWAN Franto Novico Fredinan Yulianda Gede Iwan Setiabudi Hawis H Madduppa Hefni Effendi Hilda Zulkifli Hilda Zulkifli I Wayan Nurjaya I Wayan Nurjaya Idris Idris Indri Manembu Ira Dillenia Irma Akhrianti Isdradjad Setyobudiandi Isdradjad Setyobudiandi Isni Nurruhwati Isni Nurruhwati John Haluan John I Pariwono Joshian N.W. Schaduw Juraij Juraij Kadarwan Soewardi Kurdi Gunawan Lalu M. Iqbal Sani Leni Maryani Lilik Budi Prasetyo Luky Adrianto Luzmi Malia Izza Mai Suriani Majariana Krisanti Marthen Welly Martini Djamhur Maya F Tamimi Mennofatria Boer Meutia Samira Ismet Michael John Sweet Michael Sweet Mudjirahayu Mudjirahayu Muh. Rasman Manafi Muhammad Ishak Jumarang Muhammad Kasnir Muhammad Masrur Islami, Muhammad Masrur Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mujizat Kawaroe Mulyono S. Baskoro Najid, Ahmad Nanda Tiara Diningsih Nella Tri Agustini Neviaty P Zamani Neviaty P Zamani Neviaty P. Zamani Neviaty Putri Zamani NEVIATY PUTRI ZAMANI Novian Prahandhy Kusuma Nurlisa Butet, Nurlisa Nurlita Putri Anggraini Nyoman M N Natih Nyoman M.N Natih Ocky Karna Radjasa Ocky Karna Radjasa Ofri Johan Ofri Johan Ofri Johan Ofri Johan Pertiwi, Setyo Prakas Santoso R Widodo Rahma Aprilian Rainer A Troa Riana Faiza Richard J. Stanford Richardus F Kaswadji Richardus F Kaswadji Richardus Kaswadji Richardus Kaswadji RIDWAN AFFANDI Rika Anggraini Riris Aryawati Rita Rachmawati Rokhmin Dahuri Roni Bawole Rozirwan . Rudi Febriamansyah Sadikin Amir Safar Dody Sebastian C. A. Ferse Setyo Handayani Sonja Kleinertz Subhat Nurhakim Suharsono Suharsono Suharsono _, Suharsono Syahrial Syahrial Tengku Zia Ulqodry Tri Prartono Tridoyo Kusumastanto Ummu Salma Unstain NWJ Rembet Vijaya Isnaniawardhani Welmar Olfan Basten Barat Wike Ayu Eka Putri Yanelis Prasenja Yundari, Yundari Yunianto Setiawan Yunita Luhulima Yunita Ramili Yusli Wardiatno