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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia 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 International Journal of Marine Engineering Innovation and Research Jurnal Pusat Inovasi Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine Jurnal Perikanan Biodiversitas Journal of Biological Diversity
Nyoman M N Natih
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Science, Institut Pertanian Bogor. Jl. Agatis, IPB Dramaga, Bogor 16680, West Java, Indonesia
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Spatial Distribution and Association of Gastropods in Mangrove Ecosystem in The Coast of Nusa Lembongan and Perancak Bali DIANA RIFKA SIMANULLANG; DIETRIECH GEOFFREY BENGEN; NYOMAN M. N. NATIH; NEVIATY PUTRI ZAMANI
Biodiversitas Journal of Biological Diversity Vol. 25 No. 6 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250607

Abstract

Lembongan Island and Perancak are two areas located in Bali Province that have mangrove ecosystems that are utilized as ecotourism areas with different geomorphologies. This study was conducted with the aim to determine the density and spatial distribution of gastropods and their relationship with environmental characteristics using a multivariate analysis approach i.e., Correspondence Analysis (CA) and Principal Component Analysis (PCA). Sampling used a purposive sampling method consisting of 3 zones based on distance from the sea, namely the sea, middle and land zones. The results showed that the most gastropod species in Lembongan Island were found in the sea zone with 17 which the most gastropod species is Pyrene ocellata, while in Perancak the most gastropod species were found in the middle zone with 13 which the most gastropod species is Sphaerasiminea miniata. Environmental characteristics such as temperature, pH, ORP, salinity and dissolved oxygen still support the survival of gastropods. There is twelve mangrove species have found, were Rhizopora stylosa, Rhizopora apiculata, Rhizopora mucronata, Rhizopora lamarckii, Bruguiera gymnorrhiza, Ceriops tagal, Avicennia marina, Avicennia alba, Avicennia rumphiana, Avicennia officinalis, Sonneratia alba, and  Xylocarpus granatum.
Contrasting bleaching severity between marine protected and coral restoration areas on Pramuka Island, Indonesia ZULFANDRA BACHRUL KALAM; ALFAIZ ARSELAN; DENNY KHAERUDI; DONDY ARAFAT; NEVIATY P. ZAMANI; NYOMAN METTA N. NATIH; RADIXA RADYA RAMADHAN HARYANTO; INNA PUSPA; SYAMSUL BAHRI AGUS; BEGINER SUBHAN
Biodiversitas Journal of Biological Diversity Vol. 27 No. 5 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270531

Abstract

Abstract. Kalam ZB, Arselan A, Khaerudi D, Arafat D, Zamani NP, Natih NMN, Haryanto RRR, Puspa I, Agus SB, Subhan B. 2026. Contrasting bleaching severity between marine protected and coral restoration areas on Pramuka Island, Indonesia. Biodiversitas 27 (5): d270531. https://doi.org/10.13057/biodiv/d270531. The 2023-2024 global coral bleaching event provided an urgent context for assessing reef responses under contrasting management regimes. This study compared bleaching prevalence, hard coral cover, genus composition, and life-history strategy distributions between a Marine Protected Area (MPA) and an active coral restoration site (RPTRA Smiling Coral) on Pramuka Island, Thousand Islands, Indonesia. Surveys were conducted in January 2024 using a rapid photo-quadrat method across three depth strata (5, 10, and 15 m) at both sites. The MPA exhibited severely degraded coral cover (below 25% at all depths) and extremely high bleaching prevalence (83.75-91.81%), with near-total bleaching in dominant genera including Pachyseris spp. and Pleuractis spp. In contrast, the RPTRA restoration site showed bleaching rates below 33% across all depths, with Porites spp. displaying more stable responses. Despite uniform water temperatures of 30°C across all depths, bleaching was most severe at 5 m, suggesting that light intensity amplifies thermal stress in shallow habitats. Critically, all four life-history strategies were represented among bleached genera, indicating that even stress-tolerant corals are approaching their thermal tolerance limits. These findings indicate that sites under active restoration were associated with substantially lower bleaching prevalence and better ecological condition than the passively protected MPA, consistent with the hypothesis that active restoration enhances post-bleaching recovery capacity. This association has implications for the long-term biodiversity resilience of coral communities under escalating climate stress, though the observational design precludes direct causal attribution.
Wind-Driven Upwelling Dynamics in the Southwest Arafura Sea Nabila Nur Hanifah; I Wayan Nurjaya; Yuli Naulita; Nyoman M. N. Natih
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 1 (2026): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.18.1.69870

Abstract

This study examines the spatial and temporal variability of upwelling in the southwestern Arafura Sea, focusing on the influence of monsoonal winds and ENSO variability. The objective is to identify the physical mechanisms driving upwelling formation in the region. Satellite-derived sea surface temperature (SST) and chlorophyll-a data from 2010, 2015, and 2020 were analyzed during the Southeast Monsoon (June–August). In addition, wind data, surface currents, Ekman Mass Transport (EMT), and Ekman Pumping Velocity (EPV) were evaluated to investigate the underlying oceanographic processes. The results indicate that intensified southeasterly winds during the Southeast Monsoon enhance offshore Ekman transport and generate negative wind stress curl, leading to significant Ekman pumping with EPV values reaching up to −2.1 × 10⁻⁵ m/s. These processes promote the upwelling of cooler, nutrient-rich subsurface waters, as reflected by decreased SST and increased chlorophyll-a concentrations. Conversely, weaker wind forcing reduces Ekman dynamics and weakens upwelling intensity. Vertical profiles further confirm thermocline shoaling and the upward displacement of subsurface waters during strong wind conditions. In conclusion, upwelling variability in the southwestern Arafura Sea is primarily controlled by seasonal monsoonal winds and large-scale climate variability, while regional circulation, such as the Indonesian Throughflow, contributes to the availability of cooler subsurface water that enhances surface cooling when uplifted by Ekman processes.
Pemberdayaan Sosial Berbasis Potensi Desa dan Lingkungan Guna Mendorong Kemandirian Masyarakat Desa Pabean Ilir, Indramayu Tri Amanda Putri Harahap; Adira Nabila; Ilham Bimar; Kamelia Anita Ga’a; Muhammad Derial Poszrevac Saputra; Muhammad Rafi Akbar Askari Putra; Mustika Nurul Hidayati Rahman; Zahara Khairani; Nyoman Metta Nyanakumara Natih
Jurnal Pusat Inovasi Masyarakat Vol. 8 No. 1 (2026): April 2026
Publisher : Direktorat Pengembangan Masyarakat Agromaritim, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpim.8.1.169-179

Abstract

Pabean Ilir Village, Pasekan District, Indramayu Regency, faces a number of priority issues including coastal ecosystem degradation due to plastic waste, low utilization of local fish for complementary feeding (MPASI), limited competitiveness of MSME products, weak motivation of the younger generation in achieving their goals, and minimal village spatial data. IPB University's Thematic Community Service Program (KKN-T) is implemented as an effort to empower communities based on village and environmental potential to encourage community independence. This activity aims to increase community capacity in environmental management, health, economy, education, and village planning. The methods used include field observation, interviews, training, demonstrations, participatory actions, and satellite imagery-based spatial mapping. The results of the activities show that the Breath of the Earth program is able to reduce waste accumulation, increase coastal vegetation cover, and increase environmental awareness; the SENYUM program improves mothers' nutritional knowledge and encourages the use of local fish to prevent stunting; the SiPIKIR program strengthens MSME branding and digital marketing; the Mimpi Canvas program fosters motivation, self-confidence, and future orientation of students; and the Mapping program produces maps of village potential, tsunami vulnerability, and fishing areas that strengthen data-based planning. The community's enthusiasm for participating in the program demonstrates the significant potential for sustainable village development. Pabean Ilir Village is expected to become a model for strengthening coastal community independence based on local potential and participatory innovation.
Reef Fish Biodiversity and Behavior in The Seribu Islands of Jakarta, Indonesia Arta Silaban; Neviaty Putri Zamani; Nyoman Metta N Natih; Dondy Arafat; Inna Puspa Ayu; Beginer Subhan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 2 (2026): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.18.2.71330

Abstract

Coral reef ecosystems are centers of biodiversity with high productivity in tropical waters; however, information on reef fish communities and their behavioral interactions with coral colonies in the Seribu Islands remains limited. This study aimed to identify reef fish species, coral genera utilized by reef fishes, and variations in reef fish behavior associated with coral colony structures. An Underwater Video Survey (UVS) was conducted using systematic underwater video recordings at Panjang, Pelangi, Belanda, and Kelapa Islands, Jakarta, Indonesia. The Videos were analysed to identify reef fish species, coral genera, and behavioural patterns associated with coral colonies. A total of 215 reef fish species belonging to 82 genera and 29 families were identified across the study sites. Kelapa Island exhibited the highest species richness (120 species), followed by Belanda Island (119 species) and Panjang Island (107 species), while Pelangi Island showed the lowest richness (83 species). Sixteen coral genera were recorded, with Acropora and Porites being the most dominant and occurring at all study sites. In contrast, Cyhastrea, Echinophyllia, Echinopora, Monstastraea, Platygra, and Pocillopora were restricted to a single location. Acropora and Porites also supported the highest numbers of associated reef fish species. A total of 13 behavioural categories were observed. Feeding, roaming, and hovering were the dominant behaviours across all study sites, whereas cleaning, resting, ambush, and aggressive behaviours were less frequent. Variations in behavioural patterns among islands suggest that complexity influences both reef fish diversity and behavioural expression. These findings highlight the importance of structurally complex coral habitats in supporting reef fish diversity and ecological functions in the Seribu Islands.
Pemodelan Dispersi Thermal plume dan Hubungannya dengan Struktur Komunitas Plankton di Perairan Pesisir Lombok Dietriech Geoffrey Bengen; Nyoman Metta N Natih; Asha Aulia Zahara; I Wayan Nurjaya
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 2 (2026): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.18.2.72607

Abstract

Penelitian ini bertujuan untuk menganalisis pola penyebaran gumpalan termal dan meneliti hubungannya dengan struktur komunitas plankton di perairan pantai Lombok. Penelitian ini menggunakan data pemantauan lingkungan sekunder yang dikumpulkan pada Mei 2025 dan pemodelan numerik dua dimensi menggunakan MIKE 21 untuk mensimulasikan sirkulasi hidrodinamik dan transportasi termal. Struktur komunitas plankton dievaluasi menggunakan indeks keanekaragaman Shannon-Wiener, keseragaman, dan dominasi, sedangkan hubungan antara variabel lingkungan dan plankton dinilai menggunakan korelasi peringkat Spearman dan Analisis Korespondensi. Hasil menunjukkan bahwa penyebaran gumpalan termal terutama dikendalikan oleh arus pasang surut, sirkulasi permukaan, dan angin, menghasilkan massa air hangat yang memanjang sejajar dengan garis pantai dengan suhu tertinggi tetap terlokalisasi di dekat muara. Area gumpalan yang dimodelkan didominasi oleh kelas suhu 30-30,5 °C, meliputi 62,21-66,06 km2 di seluruh fase hidrodinamik, sedangkan zona suhu yang lebih tinggi terbatas secara spasial. Keanekaragaman plankton berkisar antara 1,93 hingga 2,21, keseragaman antara 0,86 hingga 0,96, dan dominasi antara 0,12 hingga 0,17, menunjukkan komunitas yang cukup beragam dan relatif stabil. Suhu tidak berkorelasi signifikan dengan keanekaragaman (r = 0,00; p > 0,05), tetapi menunjukkan hubungan positif yang kuat dengan keseragaman (r = 0,95; p = 0,05). Secara keseluruhan, dinamika komunitas plankton di area penelitian dipengaruhi tidak hanya oleh paparan termal, tetapi juga oleh kondisi nutrisi dan proses hidrodinamika lokal.
THE EFFECT OF SHADING ON THE LENGTH OF INCUBATION AND HATCHING SUCCESS OF GREEN TURTLE (Chelonia mydas) EGGS IN PANGUMBAHAN, SUKABUMI, WEST JAVA Yusyam Leni; Neviaty Putri Zamani; Nyoman Metta Nyanakumara Natih; Ainun Rohmawati Bareta; Riris Roiska
Vol 15 No 3 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i3.1527

Abstract

The condition of the nest greatly determines the success of turtle egg hatching. The success of turtle egg hatching, both naturally and artificially, is influenced by several factors such as the location of the nest, the depth of the nest, vegetation conditions, environmental temperature, humidity and the surrounding environment. This study aims to see the effect of shade on the length of the incubation period and the success of green turtle egg hatching in semi-natural nests. This study was conducted at Pangumbahan Nesting Beach, Sukabumi. This study used an experimental method with the treatment of semi-natural nests placed in exposed areas and shaded areas with different depths, namely 68 (control), 30, 50, 70 and 90 cm. Measurements and observations of environmental conditions were carried out during the incubation period. Observations of hatching of hatchlings began on the 55th day of incubation and the dismantling of the entire nest was carried out on the 68th day of incubation. The results showed that in exposed areas there was no significant difference given the level of treatment on the length of the incubation period, while in sheltered or protected areas there was at least one difference in the level of treatment that had a different effect on the length of the incubation period. The fastest incubation period in exposed areas was at a depth of 30 cm and in sheltered areas was at a depth of 90 cm. Key words: incubation period, the green turtle, the success of hatching.  
Co-Authors Abdul Ajiz Siolimbona Abdul Motalib Angkotasan Abdurrachman Baksir Abdurrachman Baksir, Abdurrachman Abjan Ibrahim, Abjan Achmad, M Djanib Achmad, M. Djanib Adira Nabila Agus Atmadipoera Ainun Rohmawati Bareta ALFAIZ ARSELAN Amir Yarkhasy Yuliardi Anggraini, Nurlita Putri Arta Silaban Asha Aulia Zahara Ayu, Inna Puspa Aziz, Nasrul Baddu, Sartini Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Beale, Calvin S. Beginer Subhan Bemba, Jefri Bisman Nababan Darmiyati Muksin Dea Fauzia Lestari, Dea Fauzia Dedi Sugianto DENNY KHAERUDI DIANA RIFKA SIMANULLANG Dietriech Geoffrey Bengen Dietriech Geoffrey Bengen Dondy Arafat Dondy Arafat DONDY ARAFAT Eko S Wibowo Eko S Wibowo Endang Sunarwati Srimariana Erwin Maulana Ferawati Runtuboi Firdaut Ismail Firdaut Ismail Gentio Harsono Husmayani, Wa Ode I Wayan Nurjaya I Wayan Nurjaya I Wayan Nurjaya Ikbal Marus Ikbal Marus Ikbal Marus, Ikbal Ilham Bimar Imanditya, Muhammad Fachriza Indra Jaya Indra Jaya Indra Jaya INNA PUSPA Irmalita Tahir Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Jonson Lumban Gaol Kamelia Anita Ga’a Karman, Amirul Karman, Amirul Kentaro Ando Khairunnisa Khairunnisa Krisna Rendi Awalludin Leica Febby Shafitri Leni, Yusyam 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 Muhammad Derial Poszrevac Saputra Muhammad Rafi Akbar Askari Putra Munru, Maestro Mustika Nurul Hidayati Rahman Nabila Nur Hanifah Najamuddin N Najamuddin Najamuddin Najamuddin Najamuddin, Najamuddin Nebuchadnezzar Akbar Neviaty P Zamani NEVIATY P. ZAMANI NEVIATY PUTRI ZAMANI Paembonan, Rustam E RADIXA RADYA RAMADHAN HARYANTO Rahimah, Insaniah Rahman Rahman Raismin Kotta Rastina Rastina Ratuluhain, Eva Susan Rika Anggraini Riris Roiska Risandi Dwirama Putra RITA ANDINI Riza Aitiando Pasaribu Ruslan Husen Saban Tawari Rustam E Paembonan Rustam E Paembonan Rustam Effendi Paembonan, Rustam Effendi Sallatu, Muh Ashry Salnuddin Salnuddin, Salnuddin Sartini Baddu Selviani, Selviani Septy Heltria Siolimbona, Abdul Ajiz Sri Hadianti Sri Pujiyat Sri Pujiyati Steven Solikin Suhaemi Syamsul Bahri Agus, Syamsul Bahri Syawaludin Alisyahbana Harahap Taj, Kemal Tarigan, Nurhayati Tri Amanda Putri Harahap Wahab, Iswandi Wahyu W Pandoe Wibowo, Eko S Yuli Naulita Zahara Khairani ZULFANDRA BACHRUL KALAM Zulfikar, Andi Zulham Apandy Harahap Zulhan Arifin Harahap