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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

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

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Articles

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DNA barcoding of the soft coral, Clavularia inflata, shows two major groups across Indonesian coral reefs Beginer Subhan; Dietriech G. Bengen; Sebastian C. A. Ferse; Fauzan Dzulfannazhir; Luzmi Malia Izza; Nurlita Putri Anggraini; Prakas Santoso; Dondy Arafat; Lalu M. Iqbal Sani; Hawis H. Madduppa
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 27, No 1 (2022): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.27.1.1-12

Clavularia inflata was first described from Ternate Island, Indonesia in 1896 and later reported appeared from Japan and Taiwan in 1953.Clavularia (Blainville 1830) soft corals exhibit complex morphological traits that are difficult to differentiate, thus complicating their identification. DNA barcoding has been envisioned and actively pushed as a credible method for assigning unidentified specimens to known species by comparison to a molecular reference data database. Thus, the purpose of this study was to use molecular methods to confirm the identity of 25 colonies taken from 13 Indonesian coral reef sites and putatively identified as Clavularia inflata. All specimens were identified as Clavularia inflata molecularly using the mitochondrial DNA mtMuts gene. Although a comparison of the nucleotide base chains to Genbank data indicates that the samples belong to a single species, two clades in the phylogenetic tree and data from the Automatic Barcode Gap Discovery (ABGD) indicate that there are two major groups of C. inflata in Indonesia, implying cryptic species.

Type and Potential Sources of Polycyclic Aromatic Hydrocarbons (PAHs) in Coastal Area of Tarakan City, North Borneo, Indonesia Ratno Achyani; Dietriech G Bengen; Tri Prartono; Etty Riani; Abdullah Hisam bin Omar
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 1 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.1.27-36

PAHs are mutagenic and carcinogenic agents that influence the coastal water of Tarakan City. This study aims to determine the concentration, type, and distribution of PAHs in waters and sediments of rivers, seawater, and brackish ponds, and their potential sources. Fourteen samples of water and sediment from selected stations obtained 14 types of PAHs priority (USEPA). Analysis using GC-MS Type Thermo Trace 1310 single quadrupole Mass Spectrometer, using Coulum melting silica column (coulumn fused silica) DB5 MS with a length of 30 m, a diameter of 0.32 mm inline. The concentration in sediments at river locations ranges from 0.72-352.84, between 1.23-606.74 in the sea, and brackish ponds 0.08-2858.88 ng.g-1. On the waters ranged from 42.46-160.25 µg.L-1, in the sea 7.95-167.55 µg.L-1 and ponds 7.63-151.60 µg.L-1. The concentration level in rivers and seas is small and in the ponds is small-very high. The concentration on water at the river site was observed to increase from upstream to downstream. Meanwhile in sediment was higher in the upstream decreased towards the middle of river and increased in downstream/estuary area. The concentration in the Tarakan coastal environment signifies the potential hazards to the environment. Components Nap, Fla, Pyr, Chr, and BaP are types that are often identified. Furthermore, two, four and five rings of PAHs were shown to dominate in water and sediment, with the major rings present in both river and brackish pond. The PAHs were both petrogenic and pyrolytic sources from land base sources that were possibly derived from the Pamusian river.

Abundance of Phytoplankton In The Coastal Waters of South Sumatera Riris Aryawati; Dietriech G. Bengen; Tri Prartono; Hilda Zulkifli
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 22, No 1 (2017): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Phytoplankton in the ocean has an important role in forming the base of food chain, responsible in primary production. Its abundance and number of phytoplankton species will indirectly affect the level of water’s fertility. This study aimed to determine the presence of phytoplankton as bio-indicators of water quality in terms of abundance, diversity index, uniformity index, and saprobic coefficient in coastal waters of South Sumatera. The study was conducted on May 2013 - February 2014, at ten stations during high and low tides. Phytoplankton samples were taken vertically using plankton nets, cone-shaped with a diameter of 30 cm, length 100 cm and mesh size 30 μm. The study found 41 genera of phytoplankton, consisted of family Bacillariophyceae (26 genera), Dinophyceae (7 genera) Cyanophyceae (7 genera) and Chlorophyceae (1 genus). The highest number of genera was recorded while low tides in November (24 genera), and the lowest was on May while high tides (16 genera). The highest abundance of phytoplankton was recorded in August during high tides (2,68 x 107 cell.m-3), and the lowest was in May during high tides (6,59 x 105cell.m-3). The diversity index (H'), the uniformity index (E), and the dominance index (D) ranged between 0,64–3; 0,15–0,71 and 0,15–0,83 respectively. Keywords: phytoplankton, abundance, diversity index, South Sumatera coast.

Pengaruh Aktivitas Wisata Bahari terhadap Kualitas Perairan Laut di Kawasan Wisata Gugus Pulau Togean Alimudin Laapo; Achmad Fahrudin; Dietriech G Bengen; Ario Damar
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 14, No 4 (2009): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Gugus pulau Togean memiliki potensi sumberdaya perairan yang dimanfaatkan untuk kegiatan wisata bahari. Peningkatan kunjungan turis pada periode tertentu menyebabkan aktivitas wisata dan kegiatan terkait meningkat, sehingga berpengaruh terhadap penurunan kualitas perairan dan obyek wisata. Penelitian ini bertujuan untuk mengkaji keterkaitan antara musim kunjungan turis dalam setahun dengan perubahan yang terjadi pada beberapa parameter kualitas perairan laut di sekitar kawasan obyek wisata. Metode analisis yang digunakan adalah PCA (Principal Component Analysis) dan analisis IPL (Indeks Pencemaran lingkungan). Hasil penelitian menunjukkan bahwa peningkatan kunjungan turis menyebabkan peningkatan nilai BOD5, COD, dan NH3 serta penurunan nilai DO di perairan. Nilai korelasi keempat parameter tersebut lebih tinggi pada bulan Nopember dibanding Juli, dan merupakan komponen parameter pembentuk sumbu utama pertama di kedua musim. Peningkatan nilai kekeruhan, penurunan salinitas dan suhu pada bulan Nopember dibanding bulan Juli karena terkait dengan musim penghujan dan gelombang yang tinggi. Indeks pencemaran lingkungan perairan meningkat 21,05% selama musim puncak kunjungan turis, namun secara umum perairan gugus Pulau Togean masih dalam kategori belum tercemar. Kata kunci : kualitas perairan laut, aktivitas wisata, Gugus Pulau Togean Marine resources of Togean Islands have been used for tourism activity. The increasing number of tourist in certain period every year has lead to increasing of tourism activity and its related activity. This condition probably effects sea water and habitat qualities. This research aim to studied correlation between tourist season in one year and the change of marine water quality parameters in tourism area. The data were analyzed using PCA (Principal Component Analysis) and EPI(environmental pollution index). The result showed that BOD5, COD, and NH3 increased while DO decrease during the peak season of tourism activity. The correlation value of those four parameters was relatively higher in November than in July. Those parameters were the component that forms the main axis in both seasons. The increasing of turbidity and decreasing of salinity and temperature in November rather than in July were correlated with rainy season and high wave. Water pollution index increasing during peak season of tourism activity, but in general, marine water quality of Togean Islands can be categorized as good (not yet polluted) based on water pollution index. Key words: sea water quality, tourism activity, Islands Togean

Coral Reef Health Index On Sangiang Island Rahma Aprilian; Dietriech Geoffrey Bengen; Erlania Erlania; Ofri Johan; Idris Idris
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 26, No 4 (2021): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.26.4.271-281

The coral reef is massive deposits of calcium carbonate produced from coral animals that are symbiotic with zooxanthellae. One of the activities carried out as an effort to improve the sustainability of coral reefs is monitoring the health condition of coral reefs. The coral reef health index value is based on benthic components and fish components. The benthic component consists of variable life coral cover and the level of coral reef resilience determined based on macroalgae, rubble, and life coral. Fish component is the total biomass of target reef fish. The highest coral reef health index value is at value 10 and the lowest value is at value 1. This study aimed to determine the value of the health index on Sangiang Island. This research was conducted on 16-18 February 2019 on Sangiang Island on three dive stations are Legon Bajo, Legon Waru, and Tembuyung. Data collection of benthic components uses the Underwater Photo Transect (UPT) method and data collection of fish components uses the Underwater Visual Census (UVC) method. The results showed that the coral reef health index on Sangiang Island was at values 6 and 5, means the live coral cover on Sangiang Island was included in the high and medium category, and the level of coral reef resilience or recovery potential was included in the high category, while the total biomass of the target reef fish is still in the low category, only a few species of fish were found that belong to the target reef fish.

Accumulation of Heavy Metals (Cu and Pb) In Two Consumed Fishes from Musi River Estuary, South Sumatera Wike Ayu Eka Putri; Dietriech G Bengen; Tri Prartono; Etty Riani
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 21, No 1 (2016): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Fish is one of the protein sources for humans which its existence is susceptible to the contamination, one of which is the heavy metal. The lack of information regarding the content of heavy metal in the edible fish in South Sumatera makes this study important to be done. This study was aimed to analyze the concentration of heavy metal in two species of edible fishes at Musi River Estuary site. The study was conducted in the estuary section of Musi River from September to November 2014. The heavy metals of Cu and Pb in the water and in the fish organs were analyzed using AAS with a type of SpektrA A-20 Variant Plus using a mixture of Air-Acetylene flame. The result showed the variation of Cu and Pb concentrations in each of species and three organs observed. The concentration of Cu and Pb in the liver was higher than in the gills and the muscle (liver>gills>muscle). The concentration of Cu and Pb in the muscle of all fish species were not exceed the safe limit for consumption. Keywords: Cu and Pb, consumed fish, Musi River estuary

Physiological Response of Thallasia hemprichii on Antrophogenic Pressure In Pari Island, Seribu Islands, DKI Jakarta Aditya Hikmat Nugraha; Dietriech G. Bengen; Mujizat Kawaroe
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 22, No 1 (2017): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Seagrass ecosystem is one of tropical marine ecosystem and have important function. The function of ecosystem like a feeding and nursery ground for marine biota. Antrophogenic pressure is one of threat for seagrass ecosystem sustainability. This research study about effect antropogenic pressure for seagrass Thallasia hemprichii physiology response in some different location at Great Barrier Pari Island. The physiology response study cover growth, heavy metal bioaccumulation and histology analysis. The result shows that growth of leaf and rhizome Thalassia hemprichii have positif correlation with nutrient consentration in environment. The highest growth of leaf Thalassia hemprichii at 2nd station (4.16 mm.day-1) and the highest growth of rhizome Thalassia hemprichii at 4th station (1.3 mm.day-1). Seagrass can accumulation heavy metal from environment. The highest heavy metal accumulation is Pb. Not correlation between heavy metal consentration in seagrass with heavy metal concentration from environment. Analysis histology result that not damage seagrass tissue in all research station. Keyword : Bioacumulation,Growth,Physiology,Seagrass, Thalassia hemprichiiSeagrass ecosystems is one of the tropical marine ecosystems that have important functions, among others as a feeding and nursery ground for marine life. Anthropogenic stress is one of the threats that may inhibit the survival of seagrass ecosystems. This study examines the effects of anthropogenic pressures on physiological responses of seagrass Thalassia hemprichii at several different locations in Pari Islands. Physiological responses studied were leaves and rhizome growth, bioaccumulation of heavy metals and histological tissue analysis on seagrass. The results showed that the growth response of seagrass has a positive correlation with the nutrients in the environment. Seagrass leaf growth is highest at Station 2 (4.16 mm.day-1) and rhizome growth is highest at Station 4 (1.3 mm.day-1). Seagrass accumulate heavy metals from the environment and accumulation of heavy metals is highest on Pb. There is no correlation between the concentration of heavy metals in the seagrass and environment. The results of histological analysis showed that there was no damage to the tissue of seagrass leaf and rhizome. Keywords : Bio-acumulation, Growth, Physiology, Seagrass, Thalassia hemprichii

Mangrove Habitat Structure of Mud Crabs (Scylla serrata and S. olivacea) in the Bee Jay Bakau Resort Probolinggo, Indonesia Audina Putri; Dietriech Geoffrey Bengen; Neviaty Putri Zamani; Ummu Salma; Novian Prahandhy Kusuma; Nanda Tiara Diningsih; Sonja Kleinertz
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 27, No 2 (2022): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.27.2.124-132

Mud crabs (Scylla serrata and S. olivacea) are important fisheries resources, but their population in nature is decreasing due to anthropogenic activities, like the deforestation of mangrove forests. Hence, it is crucial to conserve this marine biota for future sustainable use and to conserve our marine biodiversity. Conducting studies on the biological interactions of mud crabs in mangrove habitats can be one of the future conservation approaches. Accordingly, an analysis of the functional relationships between Scylla spp. abundance and the respective mangrove habitat have to be carried out. The research was conducted in the mangrove ecosystem of Bee Jay Bakau Resort Probolinggo (BJBR). Data were collected using line transects and quadrant transects. The Associations between mangroves and mud crab habitat structures were analyzed using the Correspondence Analysis (CA) method. The results show that the relationship matrix between Scylla spp. and the structure of the mangrove habitat is centered on the F1 and F2 factorial axes (89.22%). S. serrata of all size classes were associated with dense mangroves (≥15 trees per 100m2) and high salinities (3-4 ppt), while S. olivacea has shown to be associated with rare to very dense mangrove systems. It indicates that S. olivacea tends to have a higher adaptation rate than S. serrata in this mangrove system. This study will provide information and recommendation for the conservation management of mud crabs and mangrove ecosystems to conserve marine biodiversity.

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

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Journal : ILMU KELAUTAN: Indonesian Journal of Marine Sciences