Garuda - Garba Rujukan Digital

p-Index From 2019 - 2024

6.085

P-Index

This Author published in this journals

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

Author-ID : 241924

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

Published : 74 Documents Claim Missing Document

Claim Missing Document

Articles

2 3 4 5 6

ESTIMASI NILAI EKSTERNALITAS KONVERSI HUTAN MANGROVE MENJADI PERTAMBAKAN DI DELTA MAHAKAM KABUPATEN KUTAI KARTANEGARA Yunianto Setiawan; Dietriech G. Bengen; Cecep Kusmana; Setyo Pertiwi
Jurnal Penelitian Hutan Tanaman Vol 12, No 3 (2015): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Penurunan manfaat dari ekosistem mangrove baik secara langsung maupun tidak langsung disebabkan oleh konversi hutan mangrove menjadi tambak. Untuk mengembalikan kondisi lingkungan, pemerintah melakukan rehabilitasi tambak dengan menerapkan sistem tambak wanamina. Penelitian ini bertujuan mengestimasi nilai sylvofishery eksternalitas kawasan mangrove yang dikonversi menjadi tambak di Delta Mahakam dan menghitung analisis usaha budidaya tambak dengan sistem ekstensif-tradisional serta sistem wanamina. Hasil penelitian menunjukkan nilai manfaat yang hilang mencapai Rp 209.688.551.071 per tahun dari hutan mangrove yang telah dikonversi menjadi tambak seluas 75.311 hektar. Nilai BCR tambak sistem ekstensif-tradisional menunjukan nilai negatif dan tambak sistem wanamina bernilai positif artinya bahwa pemanfaatan tambak dengan sistem wanamina akan mendatangkan keuntungan dan layak dilaksanakan pada saat ini.

KELOMPOK FORAMINIFERA BENTIK RESEN BERDASARKAN KOMPOSISI DINDING CANGKANG DI PERAIRAN TELUK JAKARTA Isni Nurruhwati; Richardus Kaswadji; Dietriech G. Bengen; Vijaya Isnaniawardhani
Jurnal Akuatika Vol 3, No 2 (2012): Jurnal Akuatika
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.381 KB)

Penelitian foraminifera bentik Resen dari 25 sampel sedimen permukaan dasar laut Perairan Teluk Jakarta untuk mengetahui komposisi dinding cangkangnya. Hasil pengamatan kelompok foraminifera bentik Resen ditemukan 86 spesies. Terdapat 74,57 %, berdinding cangkang hyalin, 17,85 % berdinding cangkang porselen dan yang berdinding cangkang agglutinin 7,58 %. Spesies yang paling dominan pada foraminifera bentik berdinding cangkang hyalin adalah Operculina ammonoides (Gronovlus) yaitu 18,02 % dan Elphidium indicum (Cushman) yaitu 10,7 %. Ditinjau dari pola sebaran berdasarkan komposisi dinding cangkang, didominasi oleh sub ordo. Rotaliina yang mempunyai komposisi dinding cangkang calcareous hyalin. Adanya kelompok dominan yang berdinding cangkang hyalin menunjukkan bahwa pada daerah penelitian merupakan lingkungan laut normal dengan kandungan karbonat yang cukup tinggi. Kata Kunci : foraminifera bentik resen, komposisi dinding cangkang, dan teluk jakarta

KELIMPAHAN FORAMINIFERA BENTIK RESEN PADA SEDIMEN PERMUKAAN DI PERAIRAN TELUK JAKARTA Isni Nurruhwati; Richardus Kaswadji; Dietriech G. Bengen; Vijaya Isnaniawardhani
Jurnal Akuatika Vol 3, No 1 (2012): Jurnal Akuatika
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.779 KB)

Perairan Teluk Jakarta merupakan wilayah perairan dangkal dengan kedalaman perairan sangat bervariasi, umumnya memiliki kedalaman 30 meter meskipun di beberapa lokasi hingga 70 meter seperti di utara Pulau Pari dan di utara Pulau Semak Daun. Habitat foraminifera terdiri dari semua kedalaman laut dari tepi pantai sampai pada laut dalam. Secara umum, spesies bentik hidup pada kedalaman tertentu. Penelitian ini dilakukan untuk mengetahui kelimpahan dan jenis-jenis foraminifera bentik resen yang terdapat pada sedimen permukaan di perairan Teluk Jakarta. Sebanyak 25 sampel sedimen permukaan yang diambil dari 25 buah core milik Pusat Penelitian dan Pengembangan Geologi Kelautan yang berada di dalam cold storage di Cirebon. Sampel yang diperoleh dianalisis jenis sedimennya dan kandungan foraminifera bentik resen didalamnya. Jumlah yang ditemukan 85 spesies yang termasuk dalam 42 genus. Spesies yang banyak melimpah ditemukan di perairan iniOperculina ammonoides (Gronovlus), Elphidium indicum (Cushman),Planulina floridana (Cushman) dan Asterorotalia trispinosa (Thalmann). Jenis sedimen yang mendominasi perairan Teluk Jakarta adalah lempung ( 21 stasiun) dan lanau (4 stasiun).

STRUKTUR DEMOGRAFI POPULASI Rhizophora apiculata DI KAWASAN INDUSTRI PERMINYAKAN PROVINSI RIAU Syahrial Syahrial; Dietriech G Bengen; Tri Prartono; Bintal Amin
JURNAL PERIKANAN TROPIS Vol 5, No 2 (2018)
Publisher : Universitas Teuku Umar

The decline in mangrove vegetation density and the area of mangrove forests in the coastal province of Riau occurred due to the logging of mangrove forests and the conversion of mangrove forests into other uses such as industrial estates. This study aims to collect a database of mangrove ecosystems which includes the ecological structure of R. apiculata in Riau Province. Collecting data of mangrove vegetation condition was done by transect line and plot. The line transect was drawn from the reference point (the outer mangrove stand) with the direction perpendicular to the coastline to the mainland and made plots according to the category. The results showed that the population of R. apiculata was found in large numbers at Station 3 (350 ind) and a small/small amount was found at Station 1 (137 ind). In addition, Stations 1, 2 and 4 have only one grouping population of R. apiculata based on the Bhattacharya method, while Station 3 has two groupings. Furthermore, the highest R. apiculata density for tree category was obtained at Station 4 (1433.33 ind/m2), saplings category at Station 3 (10488.89 ind/m2) and seedlings category at Station 4 (3666667 ind/m2). Furthermore the water temperature ranged from 28.3 – 30.7°C, salinity 27.3 – 31.3, pH 7.3 – 7.9, DO 5.2 – 6.4 and redox potential ranged from 102 – 124 mV. Based on the standard criteria and guidelines for determining mangrove damage according to the Decree of the Minister of Environment No. 201 of 2004, the population density of R. apiculata at the research location is still classified as medium and refers to the Decree of the State Minister of Environment No. 51 of 2004 concerning Sea Water Quality Standards for Marine Biota, as a whole the range of measured water quality parameters is still within tolerance limits for life mangroves.

ANALISIS PERFORMA EKONOMI PERIKANAN CAKALANG SKALA SEDANG DI ZEE SAMUDERA HINDIA Andi Irwan Nur; Mennofatria Boer; Dietriech G. Bengen; Awal Subandar
Jurnal Bisnis Perikanan (Journal of Fishery Business) Vol 1, No 1: APRIL 2014 : JURNAL BISNIS PERIKANAN
Publisher : Program Studi Agrobisnis Perikanan, Fakultas Perikanan dan Ilmu Kelautan, UHO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.749 KB)

Research is aimed at analyzing comprehensively economic performance of middle scale skipjack fisheries in EEZ Indian Ocean. Economic performance is assessed through sensitivity analysis using multidimensional scaling approach with Rapfish ordination techniques of 10 attributes. Scoring criteria for each attribute have been modified according to Indonesia’s fishery contexts. Analysis result shows that economic performance of the fishery is in general still unsatisfactory. Other incomes sources is the worst attribute with sensitivity 5.36 followed by marketable right, limited entry, and ownership with sensitivities 4.92, 4.28, and 4.18 respectively. Sensitivities of other economic attributes show enough to good performances with sensitivities ranging from 3.89 to 1.08. Such results indicating the urgency for rapid responds to manage the worst performance attributes.

SPATIAL DISTRIBUTION AND HABITAT PREFERENCE OF BIVALVIA IN THE COASTAL WATERS OF SIMPANG PESAK SUB DISTRICT, EAST BELITUNG DISTRICT Irma Akhrianti; Dietriech G Bengen; Isdradjad Setyobudiandi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 6 No. 1 (2014): Electronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

The coastal waters of Simpang Pesak Sub-district, East Belitung Regency considered as a productive region and had a broad range of habitats for bivalvia. However, research on spatial distribution and habitat preference of bivalvia in this region is limited to none. The objectives of this research were to examine the effects of marine biophysical parameters and substrate quality on bivalvia. The research was started from Mei 2013 until June 2013 by using survey method and random systematic sampling approach. The results showed that there were 16 species of bivalves consisted of 14 genus from 7 family and dominated by Gafrarium pectinatum at station I (13.62 ind/m2, C=0.52, H’=0.6, muddy sandy), and station II (28.4 ind/m2, C=0.51, H’=1.04, sandy), Gafrarium tumidum at station III (59.9 ind/m2, C=0.51, H’=1.03, sandy), Scapharca pilula at Stasiun IV (61,6 ind/m2, C=0.5, H’=0.89, clay sandy). Spatial distribution and density of bivalves were influenced by particle size, C-organik, and other environmental factors such as current, dissolved oxygen, TSS, temperature, and salinity. Keywords: bivalves, distribution, habitat preference

SCREENING ON THE POTENTIAL BIOACTIVE COMPOUNDS OF ANTIBACTERIAL ACTIVITY IN SOFT CORAL COLLECTED FROM SOUTH BANGKA ISLAND WATERS AND LAMPUNG BAY Rozirwan Rozirwan; Dietriech G Bengen; Neviaty P Zamani; Hefni Effendi; Chaidir Chaidir
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 6 No. 2 (2014): Electronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

ABSTRACT Soft corals contain bioactive compounds that can be used as a marine natural product. The puposes of this study was to determine of the soft corals inhibition potential for antibacterial activity. The methodology in this study included field sampling, extraction (in the solvent of n-hexane, ethyl acetate and methanol), antibacterial bioassay, and briefly describe the type of soft coral that possesed the highest inhibition. In sampling treatment, the biomass among wet samples and dry samples varied. The highest shrinkage due to drying was found in Nephthea, followed by Lobophytum and Sarcophyton, while the lowest was found in the genus of Sinularia. Extracted from 12 samples of soft coral, the lowest extract weight was found in the semi-polar solvent (EtOAc), while the extract weight of n-Hex and MeOH was vary. Inhibition power from all extract samples was found on soft coral extract in the EtOAc and MeOH solvents. The highest value of inhibition power was found in soft coral of Sinularia polydactyla and S. Flexibilis within strong catogery. Keywords: bioactive compounds, Lobophytum, Nephthea, Sarcophyton, Sinularia, soft coral

CONCENTRATION HEAVY METALS (Cu AND Pb) IN MUSI RIVER ESTUARY Wike Ayu Eka Putri; Dietriech G. Bengen; Etty Riani
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

The Musi River is one of the biggest river of twelve big rivers in South Sumatra Province. Water quality of this river affects the water quality in the estuary and biological health in its surrounding so that it is important to determine the Cu and Pb concentrations. The purposes of this study were to analize distribution of heavy metals (Cu and Pb) and to determine the water quality status in March and September 2014. The water and sediment samples were collected from eight stations along the Musi River from downstream to the estuary. Heavy metal concentration was analized by employing USEPA 30050B method using AAS Spektra plus variant with air mixure flame – acetylene. Dissolved Cu and Pb concentrations in March were 0,002 - 0,006 mg/l and 0,002-0,003 mg/l, respectively, while in September were 0,001-0,010 mg/lfor Cu and 0,001-0,005 mg/lfor Pb. Cu and Pb concentrations in sediment detected in March were 6,92-16,4 mg/l and 1,9-11,4 mg/l, respectively, while in September were 2,3-13,9 mg/l for Cu and 4,29-9,95 mg/l for Pb. Student test analysis showed that was no significant differences between Pb and Cu concentrations (dissolved and sediment) between March and September. Generally, the concentration of heavy metals Cu and Pb in Musi River estuary were still below specified quality standards.Keywords: heavy metal, Cu, Pb, the Musi River, estuary

BACTERIAL SYMBIONT BIOACTIVE COMPOUND OF SOFT CORAL Sinularia flexibilis AND S. polydactyla . Rozirwan; Dietriech G. Bengen; . Chaidir; Neviaty P. Zamani; Hefni Effendi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Symbiont bacteria on soft coral can produce bioactive compounds that plays an important role in chemical ecology and as a marine natural product. The purpose of this study was to find and characterize the antibacterial activities of active compounds extracted from bacterial symbionts of soft coral S. flexibilis and S. polydactyla. The methods used in this study were culture and isolation of bacterial symbionts, extraction of compounds, antibacterial bioassay, and identification of bioactive compounds using the LC-MS analyses. Four isolates of bacterial symbionts were obtained from two samples of soft corals, 2 isolates of Pseudomonas diminuta (A1) and Edwardsiellla hoshinae (A2) from soft coral S. flexibilis, and 2 isolates of E. hoshinae (B1) and P. acidovorans (B4) from S. polydactila. Antibacterial activity were found only from the extracts of bacterial symbionts P. diminuta (A1) and from S. flexiblis about 10.16 ± 0.3mm (for B. subtilis), 8.66 ± 0.8 mm (E. coli) and 9.86 ± 1.7mm (S. dysentri). No antibacterial activity found from the extracts of S. polydactyla. The results of LC MS analysis showed that the group of diterpenes sinularin produced by soft corals S. flexibilis and bacterial symbionts isolates of P. diminuta (A1).Keywords: Bacterial Symbiont, Bioactive Compound, Antibacterial Activity, Soft Coral, Sinularia flexibilis, Sinularia polydactyla

ASSOCIATION OF LOKAN SHELL Geloina erosa, SOLANDER 1786 AND MANGROVE AT KAHYAPU COASTAL AREA OF ENGGANO ISLAND, BENGKULU PROVINCE Nella Tri Agustini; Dietriech G. Bengen; Tri Prartono
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Lokan shell Geloina erosa closely related to mangrove ecosystem in Enggano island. Mangrove is one supplier of organic materials required by Lokan shell. The research conducted in September 2015 - January 2016 at mangrove ecosystems in Kahyapu coastal area, aims to analyse lokan shells Geloina erosa conditions and its association with mangrove ecosystems. Sampling of mangrove vegetation was taken using line transect and lokan shell sampling using plot in mangrove ecosystem. The results show that mangrove condition of the Kahyapu coastal area was in healthy condition for the growth of lokan shell. Lokan shell are significantly assosiated with mangrove in Kahyapu coastal area of Enggano Island.

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

Title

Found 74 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 74 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 74 Documents
Search