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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Majalah Geografi Indonesia Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Al-Ahkam Jurnal Kelautan Tropis Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Applied Geospatial Information Jurnal Sumberdaya Akuatik Indopasifik Omni-Akuatika Dinamika Maritim Jurnal Ilmu Kelautan Kepulauan Jurnal Kelautan Nasional Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine

Nyoman M N Natih

Department Of Marine Science & Technology, IPB University, Bogor 16880, Indonesia

Author-ID : 3360005

Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Library & Information Science Physics Other

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The Value of Acoustic Backscattering in Determining the Integration Thickness of the Seabed in Yos Sudarso Bay Papua Sri Pujiyati; Nyoman MN Natih; Baigo Hamuna; Lisiard Dimara
Journal of Applied Geospatial Information Vol 3 No 2 (2019): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

A considerable amount of research has already been conducted into the nature of water on the ocean floor/seabed, ranging from mapping of the seabed, volume backscattering strength (SV) of acoustics on the seabed, classification of the seabed, besides the relationship between the ocean floor and the biota above it with which it interacts. The Yos Sudarso Bay, Jayapura Papua, is a bay with a seabed which faces the floor of the Pacific Ocean and also forms the estuary of the river Anafre which contributes particles that settle on the seabed. This research aimed to collect data in order to understand differences in the integration of water thickness at 0.2 m and 0.5 m besides differences in the types of the substrate based on the results of SV. Data was collected using a single beam echosounder. The acoustic data were collected at 11 stations. The result is interval of value of SV ranged from -37.81dB to -15.62 dB (at the integration of 0.2 m) up to -15.07dB (at the integration of 0.5 m). The value of SV from the gravel was higher compared to the values found in the coarse sand, fine sand, mud mixed with sand or the pure mud. The lowest value of SV was found in the mud substrate. Results showed that thickness integration yielded different results when tested at 0.2 m and 0.5 m on the seabed. Furthermore, it was found that different types of substrate.

Hambur Balik Akustik Permukaan Substrat Dasar Perairan Menggunakan Echosounder Bim Tunggal Baigo Hamuna; Lisiard Dimara; Sri Pujiyati; Nyoman Metta N. N. Natih
Jurnal Sumberdaya Akuatik Indopasifik Vol 1 No 2 (2017): November
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

The objectives of this research are to analyze the surface backscattering strength of seabed. The single beam echosounder Simrad EK15 with 200 kHz of frequencies was used for recordings of seabed acoustic backscattering. Data collection was conducted in April 29 – Mei 2 2017 which located in the Yos Sudarso Bay, Jayapura, Papua Province. Sampling substrate was taken for ground truth data using sediment grab. The results show that average value of surface backscattering strength of sand varied between -37.48 dB up -36.03 dB, and mud varied between -46.98 dB up -45.15 dB. It shows also that sand has a high substrate roughness, hardness, and grain size larger than the type of mud substrate. In acoustic backscattering values of sand were greater than mud.

The amplitudes and phases of tidal constituents from Harmonic Analysis at two stations in the Gaspar Strait of Bangka Belitung Amir Yarkhasy Yuliardi; Septy Heltria; Kemal Taj; Nyoman M N Natih
Journal Omni-Akuatika Vol 18, No 1 (2022): 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.2022.18.1.893

The waters of the Bangka Belitung islands are shallow waters that are affected by tides. The tides in these waters originate from the propagation of the Natuna and Java Seas, so they have unique characteristics. This study aims to analyze the amplitude and phase difference at 2 stations representing Bangka and Belitung Islands with the final output of LAT and HAT information as marine cadastral recommendations at Tanjung Pesona and Tanjung Tinggi stations and safe depths for ports in PPN Sungailiat and PPN Tanjung Pandan. . Tidal data for 1 year with time intervals of 1 hour in 2015 were used to extract the harmonic components to determine the type of tide and calculate the tidal level at each station. The results obtained are 19 harmonic components with a diurnal tide type. The water level at Tanjung Pesona is higher than the high Tanjung, which is described by tidal levels with HAT 2.64 and 1.72 m. Safe depth of harbor pond. In the LAT condition (lowest recess), the water level at Tanjung Pesona station is above the Sungailiat PPN pool's maximum depth; on the other hand, the Tanjung Pandan PPN LAT is 0.44 m below the maximum depth of the port pool.Key Word: Bangka Belitung, chart datum, LAT, HAT, tidal level

POTENSI RENDAMAN TSUNAMI DI WILAYAH LEBAK BANTEN Dedi Sugianto; I Wayan Nurjaya; Nyoman MN Natih; Wahyu W Pandoe
Jurnal Kelautan Nasional Vol 12, No 1 (2017): APRIL
Publisher : Pusat Riset Kelautan

Studi ini mengkaji tentang potensi bahaya tsunami yang terjadi di pesisir pantai Lebak Banten. Zona subduksi di selatan Jawa merupakan wilayah yang menarik untuk dipelajari, karena didalam zona ini berpotensi terjadi gempabumi yang dapat menyebabkan terjadinya tsunami. Wilayah Kabupaten Lebak Banten terletak di bagian selatan Jawa Barat dan berhadapan dengan sumber tsunami di Samudra Hindia. Tujuan penelitian ini adalah untuk mengetahui run- up yang terjadi akibat tsunami dari gempabumi di celah kegempaan (seismic gap) sekitar Palung Jawa, menghitung waktu tempuh yang diperlukan oleh tsunami tersebut hingga mencapai wilayah pesisir Lebak Banten dan mengetahui potensi rendaman di wilayah tersebut. Metode yang digunakan dalam penelitian ini meliputi simulasi skenario tsunami dari gempa bumi dengan kekuatan 8,7 SR dengan menggunakan model TUNAMI-N2 dan analisis hasil keluaran model. Berdasarkan analisis hasil simulasi menggunakan TUNAMI-N2 tersebut, run-up yang dapat terjadi akibat tsunami dari gempa bumi di celah kegempaan sekitar Palung Jawa umumnya mengikuti pola topografi ketinggian wilayah. Waktu tempuh yang diperlukan oleh gelombang tsunami pertama hingga mencapai wilayah pesisir Lebak berkisar antara 15 hingga 17 menit. Potensi rendaman tsunami wilayah pesisir Lebak jika terjadi gempabumi di celah kegempaan sekitar Palung Jawa pada umumnya terdapat pada kategori sangat berbahaya mengingat tinggi run-up dapat mencapai lebih dari 3 meter dari permukaan dan jarak maksimum rendaman mencapai 1,7 km dari garis pantai, dengan luas genangan 1271,34 ha.

Distribusi Target Strength Ikan Demersal Berdasarkan Deteksi Hidroakustik di Perairan Teluk Youtefa, Kota Jayapura Sri Pujiyati; Baigo Hamuna; Lisiard Dimara; Nyoman Metta N Natih
Jurnal Kelautan Nasional Vol 15, No 3 (2020): Desember
Publisher : Pusat Riset Kelautan

Teluk Youtefa merupakan perairan yang potensial untuk penangkapan ikan demersal, terutama oleh nelayan lokal di sekitar Teluk Youtefa. Survei hidroakustik dilakukan untuk mengetahui distribusi target strength (TS) dan menduga ukuran panjang ikan demersal di perairan Teluk Youtefa. Perekaman data hidroakustik dilakukan sepanjang cruise track dengan menggunakan echosounder single beam SIMRAD EK-15 frekuensi 200 kHz. Analisis data menggunakan software Echoview 4.8, dengan threshold antara -34 sampai -70 dB dan ESDU (Elementary Sampling Distance Unit) adalah 100 ping. Ikan demersal pada penelitian ini merupakan ikan yang terdeteksi pada jarak maksimum 3 m dari dasar perairan. Hasil penelitian menujukkan bahwa ikan demersal yang terdeteksi sebanyak 27 schooling yang tersebar pada kedalaman 3,24 sampai 33,44 m. Ikan demersal yang terdeteksi dominan pada kedalaman maksimum 10 m sebanyak 21 schooling. Nilai TS rata-rata ikan demersal berkisar antara -69,58 sampai -45,87 dB. Berdasakan nilai TS yang diperoleh, ikan demersal di perairan Teluk Youtefa didominasi kelompok ikan berukuran kecil. Distribusi ikan demersal di perairan Teluk Youtefa sangat dipengaruhi oleh kedalaman perairan dan tipe substrat dasar perairan.

Hutan mangrove di Pulau Ternate secara spasial dan temporal Rustam E Paembonan; M Djanib Achmad; Ikbal Marus; Sartini Baddu; Amirul Karman; Najamuddin Najamuddin; Nebuchadnezzar Akbar; Nyoman Metta N Natih; Irmalita Tahir; Eko S Wibowo; Darmiyati Muksin; Neviaty P Zamani; Firdaut Ismail
Jurnal Ilmu Kelautan Kepulauan Vol 5, No 2 (2022): 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.v5i2.5687

Potensi Sumber dan Sebaran Sampah Laut di Ekosistem Terumbu Karang Perairan Pulau Kelapa, Pulau Kelapa Dua, dan Pulau Harapan, DKI Jakarta Muhamad Gilang Arindra Putra; Neviaty Putri Zamani; Nyoman Metta N. Natih; Amir Yarkhasy Yuliardi
Journal of Marine and Aquatic Sciences Vol 8 No 2 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i02.p09

Pollution is a threat to coral reefs in Indonesian waters. The number of coral reefs that are in very good condition denies very little compared to the total area of ??coral reefs in Indonesia. One form of pollution that can threaten coral reefs is marine debris. This study aims to identify potential sources of marine debris that can disrupt the health of coral reefs. the research was carried out in the waters of Kelapa Island, Kelapa Dua Island and Harapan Island, DKI Jakarta. The data used includes current data obtained using secondary data, data on the amount of marine debris,and the water base data substrate obtained using the LIT method. The results showed that the waste was thought to come from community activities, tourism and fisheries. The location that can be a source of marine debris in the research location comes from the mainland of Jakarta Bay. The bottom substrate conditions are in the "bad" to "medium" category. The range of the lowest proportion of live coral cover is 10,8% and the highest live coral cover at 31.1%. The coral reefs in the research location are in a state of worry and their existence is threatened by pollution of marine debris.

IDENTIFIKASI BERBAGAI JENIS SAMPAH LAUT DAN PENGELOLAANNYA BERSAMA MASYARAKAT PULAU TIDUNG, KEPULAUAN SERIBU Sri Pujiyati; Endang Sunarwati Srimariana; Dea Fauzia Lestari; Riza Aitiando Pasaribu; Mochamad Tri Hartanto; Nyoman Metta Natih; Rastina Rastina; Steven Solikin; Erwin Maulana
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 8 No. 1 (2024): Jurnal Panrita Abdi - Januari 2024
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v8i1.22001

Tidung Island is one of the islands in the Seribu Island area which has marine tourism destinations. To declare the achievement of SDGs no. 6 (Clean water and sanitation) and 14 (Life Below Water), then one of the community service activities (PPM) that can be done is cleaning garbage in the coastal areas. This activity aims to be directly involved in cleaning up garbage on Tidung Island. The method used was going directly to the field as well as conducting direct observations and interviews to find out the sources and types of existing waste and waste management that is already running. The result of this PPM activity is a clean beach on Tidung Island. This activity was carried out to get Tidung Island’s coast clean and healthy so that SDGs no. 6 and 14 can be reached. The results of community service activities show that the community is enthusiastic to carry out waste management independently and with related officers to create the Tidung Island area as marine tourism. --- Pulau Tidung adalah salah satu pulau di daerah Kepulauan Seribu yang memiliki destinasi wisata bahari. Dalam rangka mencanangkan capaian SDGs no. 6 (Clean water and sanitation) dan 14 (Life Below Water) maka salah satu kegiatan pengabdian pada masyarakat yang dapat dilakukan adalah pembersihan sampah di wilayah pesisir. Kegiatan ini bertujuan untuk terlibat langsung dalam membersihkan sampah di Pulau Tidung. Metode yang digunakan adalah turun langsung di lapangan sekaligus melakukan pengamatan langsung dan wawancara untuk mengetahui sumber dan macam sampah yang ada serta pengelolaan sampah yang sudah berjalan. Hasil berkegiatan PPM ini yaitu membersihkan pantai di Pulau Tidung. Kegiatan ini dilakukan untuk mendapatkan pantai Pulau Tidung yang bersih dan sehat sehing-ga dapat tercapainya SDGs no. 6 dan 14. Hasil kegiatan pengabdiam masyarakat menunjukkan masyarakat bersemangat untuk melakukan pengelolaan sampah secara mandiri maupun bersama petugas terkait untuk menciptakan kawasan Pulau Tidung sebagai wisata bahari.

Relationship Between Characteristics of Marine Debris and Impact to Coral Reef Muhamad Gilang Arindra Putra; Neviaty Putri Zamani; Nyoman Metta Natih; Syawaludin Alisyahbana Harahap
Jurnal Ilmiah Perikanan dan Kelautan Vol. 13 No. 1 (2021): 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.v13i1.18896

HighlightMarine debris can be as a treat for coral reefBranching coral is the most affected by marine debrisPlastic marine debris commonly found in all research location, especially from fisheries and daily activityAbstractA coral reef is one of the important ecosystems, however, the existence of coral reef is threatened. Several factors can be a threat to the coral reef, such as marine debris. Research about marine debris on coral reefs in Indonesia has not much been done. This research aims to identify marine debris that is found and impacted, to identify the impacts caused, and to identify the life forms most susceptible to being affected. This research was conducted in Kelapa Island, Kelapa Dua Island, and Harapan Island by using the Belt Transect method sized 20 x 4 m2 with four repetitions at each station to determine coral reef life form, and type of marine debris. The data was analyzed by using the Correspondence Analysis (CA) to determine the correlation of marine debris and the affected life forms of coral reefs. The result showed the plastic marine debris was found in all stations. Six life forms were affected by marine debris, and the most susceptible life forms that affected were massive and branching. The most dominant impact category on coral reefs was tissue loss with algal growth (TLAG).

Relationship Between Environmental Parameters and Manta Ray Occurrence in Raja Ampat Archipelago, Indonesia Runtuboi, Ferawati; Bengen, Dietriech Geoffrey; Nurjaya, I Wayan; Natih, Nyoman Metta N; Zulfikar, Andi; Beale, Calvin S.
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 1 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.1.37-47

Understanding the influence and impact of environmental factors on manta ray sightings is critical to understanding the spatial and temporal ecology of a highly mobile species. Therefore, this study aims to determine the influence and impact of environmental factors as indicated by the parameters of wind speed, chlorophyll-a, SST, salinity, pH, dissolved oxygen, and the number of phytoplankton and zooplankton species. The mapped chlorophyll-a was re-analyzed based on the seasonal period throughout 2021 downloaded from marine copernicus and analyzed by kriging method. The influence and effects of environmental parameters on the short-term appearance of eye rays were studied using an adaptive model (GAM). The analysis showed a significant influence of environmental factors on manta ray sightings in Raja Ampat, namely Calanoid spp, Oithona nana, Acartia clausi, Calanus helgoladicus, and Oithona brevicornis. Based on this model, zooplankton is an important parameter that can describe the influence of environmental parameters on manta ray sightings at observation points in Raja Ampat MPA. The results of the reanalysis of chlorophyll-a concentrations were highest in the eastern to transitional seasons, which were scattered on the west side of Raja Ampat waters. Meanwhile, chlorophyll-a concentrations were low in the west to transitional season on the east side. This mechanism may drive the foraging strategy of manta rays, which visit shallow waters where zooplankton density and biomass are abundant. Adopting the BHS MPA network concept, as it has been implemented, would be in line with broader conservation expectations for the sustainability of manta rays in Raja Ampat.

Co-Authors Abdul Motalib Angkotasan Abdurrachman Baksir, Abdurrachman Achmad, M. Djanib Agus Atmadipoera Amir Yarkhasy Yuliardi Asep Sandra Budiman, Asep Sandra Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Beale, Calvin S. Beginer Subhan Bisman Nababan Darmiyati Muksin Daud, Asmar Hi Dea Fauzia Lestari, Dea Fauzia Dedi Sugianto Dietriech Geoffrey Bengen Dondy Arafat Eko S Wibowo Endang Sunarwati Srimariana Erwin Maulana Ferawati Runtuboi Firdaut Ismail Gentio Harsono Husmayani, Wa Ode I Wayan Nurjaya Ikbal Marus Ikbal Marus, Ikbal Indra Jaya Indra Jaya Indra Jaya Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Joko Santoso Jonson Lumban Gaol Karman, Amirul Kemal Taj Kentaro Ando Khairunnisa Khairunnisa Kotta, Raismin Krisna Rendi Awalludin Leica Febby Shafitri Lisiard Dimara Mario Putra Suhana Marlis Yulianto Meutia Samira Ismet Mochamad Tri Hartanto Muhamad Gilang Arindra Putra Muhamad Gilang Arindra Putra Muhamad Muliadi Muhammad Agus Muljanto Najamuddin N Najamuddin Najamuddin, Najamuddin Nebuchadnezzar Akbar Neviaty P Zamani NEVIATY PUTRI ZAMANI Neviaty Putri Zamani Paembonan, Rustam E Rasidi, Rasidi Rastina Rastina Ratuluhain, Eva Susan Rika Anggraini Risandi Dwirama Putra Riyadi Subur, Riyadi Riza Aitiando Pasaribu Rustam E Paembonan Rustam Effendi Paembonan, Rustam Effendi Sallatu, Muh Ashry Salnuddin Salnuddin, Salnuddin Salnuddin, Salnudin Sartini Baddu Selviani, Selviani Septy Heltria Siolimbona, Abdul Ajiz Sri Hadianti Sri Pujiyat Sri Pujiyati Steven Solikin Syamsul Bahri Agus, Syamsul Bahri Syawaludin Alisyahbana Harahap Tarigan, Nurhayati Wahab, Iswandi Wahyu W Pandoe Wibowo, Eko S Zulfikar, Andi

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