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Komposisi plankton di laguna gugusan pulau Pari Kepulauan Seribu Ayu, Inna Puspa; Pratiwi, Niken TM; Wulandari, Dwi Yuni; Iswantari, Aliati; Krisanti, Majariana; Rahamadya, Aldiano; Subhan, Beginer
Jurnal Ilmu Kelautan Kepulauan Vol 7, No 2 (2024): Jurnal Ilmu Kelautan Kepulauan
Publisher : Fakultas Perikanan dan Kelautan. Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jikk.v7i2.8871

Abstract

Mapping and validation of spatial algorithm for monitoring turbidity of seagrass habitat using sentinel-2B imagery in Ternate Island Paembonan, Rustam Effendi; Bengen, Dietriech Geoffrey; Nurjaya, I Wayan; Agus, Syamsul Bahri; Natih, Nyoman Metta N; Subhan, Beginer; Santoso, Joko
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46989

Abstract

Turbidity is a parameter of the marine environment that greatly affects the condition of seagrass whose habitat is an intertidal zone in shallow sea waters. Seagrass is an important type of ecosystem that can be found in several coastal areas of Ternate Island. This study aims to analyze the turbidity conditions of seagrass habitat waters and apply a remote sensing algorithm using Sentinel 2B images. The turbidity research method was carried out by field measurements. The turbidity algorithm model used refers to references with mathematical equations (Rrs665-0.014)/0.013, and the development of a new algorithm as a comparison algorithm. Both algorithms were validated with field data to determine the level of accuracy using the Normalized Mean Absolute Error (NMAE) and determination coefficient (R2). The results were obtained from turbidity data with values ranging from 0.3 NTU to 1.5 NTU with an average value of 0.87 0.45 NTU. The Sentinel 2B image in this study was restored with geometric corrections, atmosphere, radiometric digital values, land masking, and sun glint. The turbidity algorithm model used obtained good accuracy in mapping and monitoring the turbidity of seagrass habitat waters on Ternate Island. The application of the turbidity algorithm used as a reference in this study has an NMAE value of 50.44 and R2 of 0.8822, while the newly discovered turbidity algorithm has an NMAE value of 29.38 and R2 of 0.8827.Keywords:remote sensingecosystemscoastalsedimentationNorth Maluku
Preliminary study oceanography and environmental parameters of habitat endemic species Halmahera walking shark (Hemiscyllium halmahera) on Indopacific Ocean Area in North Maluku Indonesia Natih, Nyoman Metta N; Akbar, Nebuchadnezzar; Bengen, Dietriech G; Nurjaya, I Wayan; Subur, Riyadi; Baksir, Abdurrachman; Ismail, Firdaut; Wahab, Iswandi; Arafat, Dondy; Paembonan, Rustam E; Siolimbona, Abdul Ajiz; Rasidi, Rasidi; Budiman, Asep Sandra; Subhan, Beginer
Depik 2025: Special Issue ICMF
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.46913

Abstract

The Halmahera Walking Shark (Hemiscyllium halmahera) is an endemic species in the Halmahera Sea. Information related to the environment in general has not been described in a complex manner. The environment is the main factor to support the life of biota. Environmental characteristics are a determining factor in the sustainability of biota. The study aims to provide information related to the physical environment of the habitat of the H. halmahera species. Primary data collection was carried out directly (in situ). Current data was taken using the Lagrange method using a currents drogue. Tides using tidal palms and observed for 24 hours. Secondary data was taken from Marine Copernicus and the Geospatial Information Agency (BIG). All data were tabulated and analyzed by Ocean Data View (ODV) software. The results of the study found that the surface current velocity was found to be in the fast current category. Current speed descriptively provides information on the life of H. halmahera. Primary data shows that the direction of the surface current moves to the east and north. Secondary data in vertical distribution shows weak zonal and meridional current shifts. The tidal pattern was found to be two high and low tides (semidiurnal). The distribution of surface temperature was found to be around 30-32oC. The vertical temperature profile found three layers, namely 1-13m (30oC), 65m (25oC) and 71m (20oC). The chemical environment showed all normal variables. The physical and chemical environmental conditions support H. halmahera to inhabit the sea area of Morotai Island. The environmental description has provided a brief understanding of how the ecological role of the H. halmahera species. Management and sustainability of the environment in the future due to climate change can be done with information on habitat characteristics.Keywords:coral triangleHalmaheranicheNorth Malukutropical
DISTRIBUSI HABITAT PAKAN DUGONG, DAN ANCAMANNYA DI PULAU – PULAU KECIL INDONESIA Dewi, Citra Satrya Utama; Sukandar, Mr.; Subhan, Beginer; Arafat, Dondy
JFMR (Journal of Fisheries and Marine Research) Vol. 2 No. 2 (2018): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2018.002.02.9

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Dugong merupakan mamalia laut yang termasuk dalam ordo Sirenia, dan tergolong organisme langka yang tercatat dalam IUCN.  Rendahnya populasi dugong disebabkan oleh faktor biologi reproduksinya, perburuan oleh manusia, dan kerusakan habitatnya.  Dugong diketahui memiliki pola makan sebagai herbivora, dan menghabiskan waktu untuk aktivitas makan di padang lamun.  Penelitian terdahulu terhadap isi perut dugong di Indonesia menyebutkan bahwa, 90% perut dugong berisi daun lamun jenis Thalassia hemprichii, Halodule sp., Halophila sp., dan Cymodocea sp., sementara sisanya adalah rumput laut. Tujuan dari penelitian ini adalah untuk mengetahui distribusi padang lamun sebagai habitat pakan dugong, dan ancamannya di Indonesia.  Penelitian ini dilakukan sepanjang Tahun 2012, di 15 pulau kecil wilayah perairan Negara Kesatuan Republik Indonesia (NKRI).  Metode yang digunakan dalam penelitian ini adalah kombinasi transek garis (Line Intercept Transect-LIT) dan transek kuadrat di setiap stasiun ditemukannya padang lamun.   Hasil penelitian menunjukkan bahwa lamun jenis Thalassia hemprichii, Halodule sp., Halophila sp., dan Cymodocea sp. ditemukan di seluruh stasiun pengamatan.  Keempat jenis lamun tersebut ditemukan membentuk padang lamun monospesies maupun heterospesies, dengan kondisi kualitas perairan yang relatif baik untuk tumbuh dan berkembang biak.  Padang lamun sebagai habitat pakan dugong yang ditemukan  selama penelitian di 15 pulau kecil diketahui memiliki ancaman lingkungan beragam, antara lain proses sedimentasi dan konversi lahan oleh manusia. 
Restorasi karang dengan metode mikrofragmentasi di Laut Kota Ternate. Maluku Utara Siolimbona, Abdul Ajiz; Baksir, Abdurrachman; Anwar, Muhammad Fathur; Ismail, Firdaut; Marus, Ikbal; Wibowo, Eko Setyobudi; Akbar, Nebuchadnezzar; Angkotasan, Abdul Motalib; Tahir, Irmalita; Arafat, Dondy; Subhan, Beginer
Jurnal Ilmu Kelautan Kepulauan Vol 7, No 2 (2024): Jurnal Ilmu Kelautan Kepulauan
Publisher : Fakultas Perikanan dan Kelautan. Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jikk.v7i2.9553

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Upaya Meningkatkan Keberhasilan Rehabilitasi Terumbu Karang yang Berkelanjutan di Kawasan Konservasi Laut Subhan, Beginer; Arafat, Dondy; Febriantika, Putri; Khairudi, Denny; Aisyah, Siti Zanuba
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol 5 No 3 (2023): Policy Brief Pertanian, Kelautan dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0503.650-654

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Kegiatan rehabilitasi terumbu karang sudah dilakukan di Indonesia, selama 20 tahun terakhir lebih dari 500 kegiatan sudah dilakukan tetapi belum banyak yang berhasil dan berkelanjutan. Kegiatan – kegiatan ini sebagian besar dilakukan di kawasan konservasi laut yang tersebar di seluruh Indonesia. Pada tulisan ini akan membahas tentang pentingnya program perawatan dan pemantauan pada kegiatan rehabilitasi terumbu karang. Hal ini perlu didukung dengan adanya standar keberhasilan serta adanya pelibatan masyarakat pula. Kegiatan rehabilitasi yang berjalan dengan berkelanjutan tidak hanya dapat memperbaiki fungsi ekosistem terumbu karang tetapi dapat membuka peluang kerja baru bagi masyarakat dan membuka sumber ekonomi baru sebagai blue economy.
DNA Barcoding of Red Algae (Rhodophyta) in Ternate Island Sea, North Maluku, Indonesia Achmad, Muhammad Janib; Akbar, Nebuchadnezzar; Ismail, Firdaut; Samman, Ardan; Subhan, Beginer; E Paembonan, Rustam; Arafat, Dondy
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 1 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i1.44436

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Abstract Ternate Island is located on the North Maluku Sea. The North Maluku Sea region includes the Wallacea area and the world's coral triangle. One of the organisms commonly found in this sea is red algae. Study aimed to determine the red algae species by phylogenetic tree analysis based on the rbcL gene as a DNA marker. The preserved red algae tissue samples were extracted with the Geneaid GP100 DNA Extraction Kit Plant. The DNA sample was amplified and then visualized by 1% agarose gel electrophoresis. The amplicon products were sequenced and then aligned with the rbcL gene database that was available at the NCBI gene bank. The phylogenetic tree was constructed using the UPGMA method. The results showed that red algae were identified into four species: namely Gibsmithia hawaiiensis (98.65%), C_rbcL sample was identical to Amansieae sp. (91.50%), D_rbcL sample was identical to Peyssonnelia sp. (95.54%), and G_rbcL sample was similar to Portieria hornemanniI (96.15%). Based on phylogenetic tree analysis, Gibsmithia hawaiiensis from North Maluku is closely related to species from Raja Ampat, West Papua, Indonesia, followed by the Philippines species. Special findings were found to carry out phylogenetic reconstructions that can answer inter-species kinship. The general finding is that the markers used can be used for phylogenetic construction. Phylogenetic construction of Peyssonnelia sp. in North Maluku is related to species from South Africa. North Maluku's Portieria hornemannii is closely related to a species from Korea. Highlight Research This study provides initial information about the DNA barcoding of red algae. Important for management purposes and determining the status of red algae in the future. This scientific information also provides an understanding of the relationships among red algae species in the world's oceans. Global warming has changed the temperature of seawater and affected the population of marine organisms.
High and Low Taxa Specificity of Rhizosphere Bacteria Communities of Mangrove (Rhizophora mucronata) from Kuala Langsa and Telaga Tujuh Island, East Aceh Maysaroh, Siti; Samira Ismet, Meutia; Andini, Rita; Anggraini, Nurlita; Subhan, Beginer
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 2 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i2.55882

Abstract

Highlight Research Bacteria from mangrove sediment have been identified, and environmental parameters have been analyzed. The relationship between rhizosphere bacteria and the environment has been analyzed. The distribution and abundance of rhizosphere bacteria differ between Kuala Langsa and Telaga Tujuh. The diversity and abundance of rhizosphere bacteria are not influenced by environmental parameters. Abstract The focus of this study on understanding the structure and dynamics of rhizosphere bacteria in mangrove ecosystems is driven by the increasing acknowledgment of the crucial roles these microorganisms play in ecosystem functioning. Rhizophora mucronata, a key mangrove species, is known for its ecological significance. Investigating the bacteria associated with its rhizosphere offers valuable information about the symbiotic relationships between mangrove vegetation and microbial communities. Bacteria are vital for decomposition and nutrient availability in mangroves. This research examines sediment from rehabilitated and natural areas to understand how human and natural factors shape bacterial communities.The DNA sequence was analyzed using Next-Generation Sequencing (NGS), which targeted the 16S bacterial region in the V3-V4 rDNA. Additionally, environmental factors such as nitrate, phosphate, and sulfur content were also analyzed. Kruskal-Wallis and T-test statistical analyses were used to examine the abundance of bacteria and environmental parameters between study sites.There are differences in the types of bacteria found in Kuala Langsa and Telaga Tujuh. Approximately 7% of the rhizosphere bacterial groups were exclusively detected in Telaga Tujuh, such as Fusobacteriia (Class). Additionally, the abundance of bacteria at both locations differs significantly (p < 0.05), as determined by Kruskal-Wallis. The results of the t-test indicate that the observed environmental parameters do not differ significantly from each other. The environmental parameters studied did not significantly impact the types or abundance of detected rhizosphere bacteria.
Effective DNA extraction method for metagenomic analysis of rhizosphere bacteria from mangrove sediments Maysaroh, Siti; Ismet, Meutia Samira; Subhan, Beginer; Andini, Rita; Sembiring, Enny Rimita; Anggraini, Nurlita Putri
Depik Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.32850

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Mangrove, Rhizophora mucronata, grows in the intertidal area, which contains much organic matter and varying salinity. The organic matter content is influenced by the bacterial community that inhabits the ecosystem, but information regarding the bacterial community, especially in the mangrove root system, is not widely available. There are several challenges in completing this information, one of which is that the method used is still in a conventional form. Developments in environmental DNA analysis can support and complement this information. However, this method must be optimized because the organic matter content and salt variations affect the extraction results. Thus, this study aimed to determine the optimal approach for extracting bacterial DNA from mangrove sediments. The analysis used two methodologies: manual DNA extraction techniques based on buffer modification and DNA extraction kits. There were four different treatments, namely the soil DNA isolation plus kit (M1), the fecal / soil microbial quick-DNA miniprep kit (M2), glass powder with charcoal (M3), and glass powder with skimmed milk (M4). DNA samples were obtained from each method and assessed for concentration and purity using a nanodrop. In addition, the resulting DNA's quality was analyzed using 1.5% agarose. The results obtained were in the M2 treatment, which showed optimal results compared to the others. M2 uses a bead-based beating and spin column method to achieve optimal DNA concentration through high molecular weight. The DNA obtained was also protein-free, and several samples were contaminated with humic acid, namely KL.S1, KL.S4, and T7.S4.Keywords:Bacteria 16SBead beatingDNA ExtractionSedimentSpin column
Phytoplankton in Eutrophic Waters of Hurun Bay: An Examination of Composition Patterns, Structure, and Impacts on Aquatic Ecosystems Munru, Maestro; Ismet, Meutia Samira; N.Natih, Nyoman Metta; Subhan, Beginer; Aziz, Nasrul
International Journal of Marine Engineering Innovation and Research Vol 9, No 3 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.21625

Abstract

Ecological conditions are shifting due to increased anthropogenic activities along coastal areas. These activities are affecting the life cycle of aquatic organisms, especially phytoplankton. This study, conducted in the unique ecosystem of Hurun Bay Lampung, aims to analyze the composition and structure of phytoplankton communities in eutrophic waters and water quality conditions. Sampling was conducted in two different months, August and October, by vertical hauling from a depth of 5 meters to the surface. The results revealed a rich diversity of phytoplankton, with 72 genera, 48 families, and 6 classes identified in August, and 55 genera, 42 families, and 6 classes identified in October. The diatom group was the most prevalent, accounting for over 90% of the total, with the highest abundance found in Skeletonema and Chaetoceros. The diversity, uniformity, and dominance indices were all in the low to medium category, indicating a balanced ecosystem
Co-Authors Abdul Motalib Angkotasan Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir, Abdurrachman Abjan Ibrahim, Abjan Achmad, Muhammad Janib Adewal, Murad Alvian K Aditya Bramandito ADRIANI ADRIANI Adriani Sunuddin Afiff , Usamah Agus Ramli Ahmad Eko Suprianto Ahmad Taufik Ghozali Ahmad Taufik Ghozali Aisyah, Siti Zanuba Aji Wahyu Anggoro Alan Frendy Koropitan Ali Mashar Aliati Iswantari Alla Asmara Am Azbas Taurusman Andhika Prima Prasetyo Andrianus Sembiring Anggi Mayulina Daulay Anggraini, Nurlita Anggraini, Nurlita Putri Anwar, Muhammad Fathur Aradea Bujana Kusuma Aradea Bujana Kusuma Ardan Samman Arif Miftahul Aziz, Arif Miftahul Ario Damar Asadatun Abdullah Asep Sandra Budiman Asep Sandra Budiman, Asep Sandra Ayu Ervinia Ayu, Inna Puspa Aziz, Nasrul Bashari, Muhammad Hasan Benyamin, Azhari Bertoka Fajar S.P. Negara Borbee, Erin Budi Prabowo Citra S. U. Dewi Citra Satrya Citra Satrya Utama Dewi Dea Fauzia Lestari, Dea Fauzia Dedi Soedharma Dedi Soedharma Denny Khaerudi Dewi, Citra Satrya Utama Diah Ayuningrum, Diah Dian Pertiwi Dietrich Geoffrey Bengen Dietrich Geoffrey Bengen Dietriech G Bengen Dietriech Geoffrey Bengen Dondy Arafat Dondy Arafat Dwi Yuni Wulandari Dzulfannazhir, Fauzan E Paembonan, Rustam Efahmi, Efahmi Eko S Wibowo Eko S Wibowo Elfahmi Elfahmi, Elfahmi Elok Faiqoh Endang Sunarwati Srimariana Enny Rimita Sembiring Fadel Muhammad Fadhilah Rahmwawati Fadillah Rahmawati Fahlevi, Arief Reza Fajar Maulana . Fauzan Dzulfannazhir Fauzan Dzulfannazhir Febriantika, Putri Fenetiruma, Syamsudin Ferse, Sebastian Firdaut Ismail Firdaut Ismail Firdaut Ismail Firdaut Ismail Firsta Kusuma Yudha Gelis, Ester R. E. Genadi Algadri Hardianti, Aprilia Hari, Restu Fajar Hawis H Madduppa Herettrenggi, Rosa Hermansyah Amir, Hermansyah Husna, Alief K I Wayan Nurjaya Idham A. Nasrullah Ikbal Marus Ikbal Marus Ikbal Marus, Ikbal Ilham, Yuwanda Inna Puspa Ayu Irianda, Nadya Jeny Irmalita Tahir Irmalita Tahir Irmalita Tahir, Irmalita Irnin Agustina Dwi Astuti Islami, Nurfara Ismail, Firdaut Iswandi Wahab Iswandi Wahab Jansit, Afifah F. Jeddah Isnul Jhoni Wahyu Adi Joko Santoso Junaedy, Ahmad Kahar, Fauzi Abdul Karizma Fahlevy Khairudi, Denny Kintani, Novia Indah Kotta, Raismin Kusumarani, Dheni Lalu M. Iqbal Sani Lalu M. Iqbal Sani Lane, Christopher Luzmi Malia Izza Maestro Munru Mai Efdi Majariana Krisanti Malaihollo, Jantje Jacobus Manafi, Efi Noferya Mas Irfanto Masyerli, Scify Bilqis Nawafi Meutia Samira Ismet Minsaris, La Ode Alam Miswandi, Muhammad Mochamad Untung Kurnia Agung Mohamad Gazali Mohammad Mukhlis Kamal Muhamad Gilang Arindra Putra Muhamad Gilang Arindra Putra Muhamad Iqbal Muhammad Iqbal Muhammad Janib Achmad Muhammad Taufik Muhammad Yusuf Muhandis Shidqi Munru, Maestro Mutmainnah Mutmainnah Muttaqin, Ahmad Sabilul Mu’min Mu’min N Natih, Nyoman Metta N, Furqan Nadya Cakasana Nadya Jeny Irianda Najamuddin Najamuddin Najamuddin Najamuddin, Najamuddin Nasrul Aziz Nebuchad Nezzar Akbar Nebuchadnezzar Akbar Nebuchadnezzar Akbar Neviaty P. Zamani NEVIATY PUTRI ZAMANI Ni Kadek Dita Cahyani, Ni Kadek Dita Niken TM Pratiwi Ningtyas, Azizah Lutfia Nor Jannah, Nor Novriyandi Hanif Nur Ari Bayu Nurlisa Alias Butet Nurlita Anggraini Nurlita Putri Anggraini Nurlita Putri Anggraini Nurlita Putri Anggraini Nyoman M N Natih Nyoman Metta N Natih Paembonan, Rustam E Prakas Santoso Prakas Santoso Prakas Santoso Prakas Santoso Prehadi . Prehadi Prehadi Prehadi, Prehadi Purwanto, Budi Rachma ati, Rita Rahamadya, Aldiano Rahimah, Insaniah Rahman Rahman Rahmat Hidayat Rahmat, Fadhlan Basiluddin Raismin Kotta Ramadian Bachtiar Ramili, Yunita Rani Utari Ayuningtyas Rasidi Rasidi Rasidi, Rasidi Raunsai, Jhoni Elias Raweyai, Oktofianus Obaja Restu, Yunan Gilang Ridha Fathihatunnisa RITA ANDINI Rita Andini Rita Andini Riyadi Subur, Riyadi Rommy M. Abdullah Rotinsulu, Dordia Anindita Rustam E Paembonan Rustam E Paembonan Rustam E Paembonan Rustam E Paembonan Rustam Effendi Paembonan Rustam Effendi Paembonan, Rustam Effendi Ryan Adhitia Muslim Safika S, Safika Samira Ismet, Meutia Samsuardi Samsuardi, Samsuardi Sani, L. Mukhsin Iqbal Sani, Lalu M Iqbal Sani, Lalu M. Iqbal Sani, Lalu Mukhsin Iqbal Santoso Budi Widiarto Santoso, Prakas Satya Pratama Atmaja Sebastian C. A. Ferse Sebastian Ferse Sembiring, Enny Rimita Setiamarga, Davin H. E. Siolimbona, Abdul Ajiz SITI KHODIJAH Siti Maysaroh Siti Maysaroh Siti Maysaroh Sombo, Hendrik Sukandar Sukandar Sukandar, Mr. Syafrizayanti, Syafrizayanti Syahid Syamsul Bahri Agus, Syamsul Bahri Tumpak Sidabutar Ulandari, Rafika Wahab, Iswandi Wedi Andika Wibowo, Eko S Wibowo, Eko Setyobudi Wiwid Andriyani Lestariningsih Yahya, Rodhiyah Yennafri, Yennafri Yidoatimojo, Sudibyo Yoga Budi Bhakti yoman Metta N Natih Yosie Andriani Yuliana Fitri Syamsuni Yusli Wardiatno Zamani, Nevyati P. Zedta, Raymon Rahmanov Zulham Apandy Harahap Zulhan Arifin Harahap