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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Kelautan Tropis Jurnal Sumberdaya Akuatik Indopasifik Omni-Akuatika Jurnal Ilmu Kelautan Kepulauan Agrikan: Jurnal Agribisnis Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Ramili, Yunita
Program Studi Ilmu Kelautan, Fakultas Perikanan Dan Kelautan Universitas Khairun
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Library & Information Science

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Length-Weight Relationship and Condition Factors of Sea Cucumber on Mare and Moti Islands Conservation Areas in North Maluku Ramili, Yunita; Umasangaji, Halikuddin; Legohiwo, Misnawati
Jurnal Kelautan Tropis Vol 27, No 1 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i1.22017

Abstract

This work aimed at determining the growth patterns and condition factors of three sea cucumber species, namely Holothuria atra, Bohadschia marmomata, and B. vitiensis in seagrass beds of Mare and Moti Islands. Samples were collected in March 2023 using a roaming survey method in a block area with an area of 5000 m2.  As amount of 54 sea cucumbers were analysed from Mare Island and 58 individuals from Moti Island. The results of this study indicate that the correlation (r) length-weight relationship for the three sea cucumber species is stronger (r > 0.6) on Moti Island than Mare Island.  H. atra and B. marmorata have a negative allometric growth pattern, while B. vitiensis has a positive allometric growth pattern on both islands. The Fulton condition factors for the sea cucumbers assessed on Mare Island were recorded for H. atra of 2.84 ± 2.01, B. marmorata of 3.13 ± 2.47 and B. vitiensis of 9.24 ± 5.73. Meanwhile, at Moti Island were found for H. atra of 12.49 ± 11.66, B. marmorata of 9.58 ± 7.38, and B. vitiensis of 8.87 ± 3.68. This is indicated that all sea cucumber species are in good physical condition. Meanwhile, the relative weight condition factor (Wr) of the three species of sea cucumbers on both islands were in the range above 100, which indicated a food surplus in their habitat. The results of this research can be important as the preliminary data in terms of sustainable management of sea cucumber stocks in North Maluku.
Accumulation of Marine Debris in Seagrass Meadows in The Waters of Hiri and Mare Islands, North Maluku Umasangaji, Halikuddin; Noho, Arif Gamalama; Ramili, Yunita
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 2 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i2.2204

Abstract

Marine debris have become a serious problem due to the lack of waste management from anthropogenic activities. The seagrass ecosystem has become an area for marine debris accumulation that can disrupt the bio-ecological function. This study aims at determining the sizes and weight of marine debris, quantify their densities, and examining the relationship between seagrass density and marine debris abundance. The study was conducted in September– October 2022 in the waters of Hiri and Mare Island. Marine debris data collection was carried out in observation plot (100mx50m). Seagrass data was taken on the same plot using the linear quadratic transect method. The results of the study obtained five types of marine debris, namely plastic, metal, glass, rubber, and others. The highest total amount of marine debris was found on Mare Island (208–368 items) compared to Hiri Island (58 items). Plastic was the most dominant type of marine debris (80.72%–85.97%) while glass was the lowest (0–2.47%). Macro debris were the most commonly found on both islands. The highest total weight of marine debris was found on Mare Island (4952.26–9349.98 grams), while the lowest one on Hiri Island (1129.06 grams). The abundance and accumulation of marine debris were higher on Mare Island (0.0368 gr/m2 and 0.935 gr/m2) compared to Hiri Island (0.0058 items/m2 and 0.0013 gr/m2). The highest seagrass density was found on Hiri Island (82.78 ind/m2) and the lowest on Mare Island (20.17 ind/m2). The strong relationship between seagrass and marine debris (r=0.77) on the negative way.
Accumulation of Microplastics on Seagrass Leaves of Enhalus acoroides on Mare Island as a Conservation Area in North Maluku Ramili, Yunita; Umasangaji, Halikuddin
Journal Omni-Akuatika Vol 19, No 2 (2023): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2023.19.2.1097

Abstract

Seagrass ecosystems have been indicated as the new hotspots of microplastics (MPs) in the marine environment. This work aimed at determining the potential of microplastics and epibionts accumulation on Enhalus acoroides leaves at the coast of Mare Island as one of the conservation areas in North Maluku region. Samples collection was carried out in August 2021 at two research locations, namely Maregam (Station 1) and Marekofo (Station 2) villages. Each of E. acoroides leaves (18 leaves) was observed for the presence of microplastic that attached on the epibionts of seagrasses. Seagrass leaves were collected using line transect which was stretched out to 50 m vertically seaward. Subsequently, the characterization of epibionts on the seagrass leave were determined according the rank of the cover percentage of epibionts. Meanwhile microplastics were identified referring to their shapes and colors under microscope observation. The results showed that three types of microplastics were embedded on the epibiont matrices of E. acoroides leaves namely fibers, fragments, and pellets. The average number of microplastic particles in E. acoroides leaves at station 1 was higher (9.1 MPs particles/leaf) than Station 2 (4.5 MPs particles/leaf). The accumulation of fiber type was higher at station 2 (76%) than station 1 (41%), conversely the accumulation of fragment type was higher at Station 1 (54%) than station 2 (19%), while pellets were found to be the least in both stations. Overall, seven colors of microplastic were found, namely blue, brown, black, red, green, orange and white, except at station 2 was absence of brown one. Station 1 was dominated by the white color (32%) while station 2 dominated by the black color (32%). According to the level of epibiont closure, it was found that the presence of microplastics was higher in the rank 1 epibiont at Station 1 where the epibiont covers less than 25%, while at station 2 was the highest one with the rank of 3 which meant that the epibiont covers was 50 – 75%. We concise that through this finding the society should be aware of microplastics extention on coastal area including seagrass leaves. Thus, the local government should pay attention of plastic debris management in the future to mitigate the impacts of these contaminants to the marine environment.Keywords: microplastics, Enhalus acoroides, epibiont, Mare Island
Composition, Distribution, and Diversity of Gastropod Species in The Estuarine Waters of Kaiyasa and Oba Village, Tidore Islands City, North Maluku Ramili, Yunita; Marus, Ikbal; Barawis, Nurul Asmania H.; Umasangaji, Halikuddin
Agrikan Jurnal Agribisnis Perikanan Vol. 18 No. 1 (2025): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Estuaries are one of the habitats for gastropods that have not been widely explored in North Maluku. This study aims at assessing the ecological conditions of gastropods in the estuarine waters including their composition, distribution, density, and species diversity. The study was conducted in August 2024 in the estuarine waters of Kaiyasa Village (Station 1) and Oba Village (Station 2). Data collection was carried out using the Quadratic Linear Transect Method. The results of this study found six species of gastropods with the highest composition found at Station 1 as 6 species, namely Faunus ater, Telescopium telescopium, Terebralia palustris, Cerithium coralium, Nassarius olivaceus, and Chicoreus capucinus compared to Station 2 as two species namely F. ater and T. palustris. F. ater which dominated both research stations since they were found in large numbers, namely 342 individuals (93%) at Station 1 and 299 individuals (98%) at Station 2. F. ater also had the highest density values of all species of gastropods found, namely 19.00 ind/m2 (Station 1) and 16.61 ind/m2 (Station 2), while C. coralium and C. capucinus have the lowest density values of 0.11 ind/m2. In general, the ecological conditions of gastropods at both research stations indicate a relatively low level of species diversity (H’ = 0.1 – 0.34), with low species evenness (E = 0.14 – 0.19), and indicated the dominance of certain species (C = 0.87 – 0.96), namely F. ater. The quality of the estuary water environment at both stations was still suitable for supporting gastropod life.
Komposisi dan kelimpahan ikan karang pada area fish apartement di perairan laut Kota Ternate Baksir, Abdurrachman; Ismail, Firdaut; Raden, Muhammad Sahlan R; Tahir, Irmalita; Ramili, Yunita; Siolimbona, Abdul Ajiz; Wibowo, Eko S; Harahap, Zulhan A; Marus, Ikbal; Najamuddin, Najamuddin; Waluyo, Waluyo; Nurdiansah, Doni; Patty, Simon I; Akbar, Nebuchadnezzar
Jurnal Ilmu Kelautan Kepulauan Vol 8, No 1 (2025): 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.v8i1.10045

Abstract

Preliminary detection of marine debris pollution in mangrove ecosystem on Moti Island as a conservation area in North Maluku, Indonesia Umasangaji, Halikuddin; Ramili, Yunita; Hatari, Anisa Eka Putri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.45966

Abstract

Mangrove ecosystem have been recognized as a paramount area in terms of marine debris traps despite of their essential role in carbon sequestration and coastal protected. This study collected marine debris and observed mangrove conditions on Moti Island as one of the conservation area in North Moluccas. The results of this study showed that R. apiculata had the highest species composition at both stations. The mangrove density at Station 2 (622 ind.h-1) which was higher than Station 1 (589 ind.h-1). The total number of marine debris was 214 items, with the highest composition of plastic debris (96% - 97%) and the lowest was metals. Most of the marine debris was classified as macro debris. The total weight of marine debris was higher at Station 2 (1812.79 g) than at Station 1 (1727.69 g) Furthermore, the density and accumulation values of marine debris at Station 2 were higher (0.12 items.m-2 and 6.043 g.m-2) than those at Station 1 (0.063 items.m-2 and 2.879 g.m-2). The mangrove beach cleanliness index at both research stations was categorized as very clean (Station 1) and clean (Station 2). The relationship between marine debris and mangrove density showed a positive correlation despite low correlation with an r2 value of 0.24. Meanwhile, according to single way ANOVA, there was no significant difference in marine debris abundance between the two stations. Polymer identification through commercial labels implied the dominance of PET, LDPE and PP types at both stations.Keywords:Marine debrisMangrove ecosystemConservation areaMoti islandNorth Moluccas
Preliminary detection of marine debris pollution in mangrove ecosystem on Moti Island as a conservation area in North Maluku, Indonesia Umasangaji, Halikuddin; Ramili, Yunita; Hatari, Anisa Eka Putri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.45966

Abstract

Mangrove ecosystem have been recognized as a paramount area in terms of marine debris traps despite of their essential role in carbon sequestration and coastal protected. This study collected marine debris and observed mangrove conditions on Moti Island as one of the conservation area in North Moluccas. The results of this study showed that R. apiculata had the highest species composition at both stations. The mangrove density at Station 2 (622 ind.h-1) which was higher than Station 1 (589 ind.h-1). The total number of marine debris was 214 items, with the highest composition of plastic debris (96% - 97%) and the lowest was metals. Most of the marine debris was classified as macro debris. The total weight of marine debris was higher at Station 2 (1812.79 g) than at Station 1 (1727.69 g) Furthermore, the density and accumulation values of marine debris at Station 2 were higher (0.12 items.m-2 and 6.043 g.m-2) than those at Station 1 (0.063 items.m-2 and 2.879 g.m-2). The mangrove beach cleanliness index at both research stations was categorized as very clean (Station 1) and clean (Station 2). The relationship between marine debris and mangrove density showed a positive correlation despite low correlation with an r2 value of 0.24. Meanwhile, according to single way ANOVA, there was no significant difference in marine debris abundance between the two stations. Polymer identification through commercial labels implied the dominance of PET, LDPE and PP types at both stations.Keywords:Marine debrisMangrove ecosystemConservation areaMoti islandNorth Moluccas
Pemanfaatan lempung alluvial hutan mangrove sebagai material utama pembuatan gerabah penyimpan panas Bahar Subur, Abd.; Salnuddin, Salnuddin; Ramili, Yunita; Akbar, Nebuchadnezzar; Ismail, Firdaut
Jurnal Ilmu Kelautan Kepulauan Vol 6, No 2 (2023): 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.v6i2.7622

Abstract

Produk gerabah spesifik di produksi oleh pengrajin di Pulau Mare adalah “Vorno” atau “keta”. digunakan sebagai alat pengolahan pangan tradisional “sagu lempeng”. Dalam perkembangnnya industri gerabah mengalami kendala kebutuhan material serta inovas kreatit menjawab kebutuhan konsumen. Oleh karena itu perlu upaya mengkaji potensi penyimpanan panas dari gerabah yang terbuat dari material Alluvial dengan harapan ditemukan (eksprimental) komposisi gerabah dari material alluvial hutan mangrove dan pasir yang mempunyai karakter penyimpanan panas yang tinggi sekaligus sebagai salah satu langkah strategis dan mendesak untuk dilakukan dalam upaya pengembangan kerajinan gerabah tradisional dengan memperbaiki mutu produksi dan menciptakan model-model desain yang inovatif. Hasil uji coba pembuatan gerabah dengan memanfaatkan materuial alluvial hutan mangrove, dapat ditarik beberapa kesimpulan sebagai berikut : 1) Komposisi material dengan kadar pasir lebih besar berpeluang mengalami kehancuran lempengan saat dilakukan pembakaran; 2) Komposisi gerabah perlakuan A (50 %: 50 %) mempunyai penyusutan dimensi lempengan yang lebih baik ( 20 %) dibandingkan perlakauan C (30%:70%) dan perlakuan D (80% : 20%). 3) Kecepatan perubahan suhu lempengan gerabah dari perbandingan material pasir dan alluvial hutan mangrove 50 %: 50 % (perlakukan A) lebih lambat mengalami penurunan suhu (-8, 52oC/2 menit) dibandingkan pada perlakuan C (-11,07 oC/2 menit) dan perlakuan D (-13,12 oC/2 menit). 4) Komposisi lempengan gerabah yang diuji dari material alluvial hutan mangrove mempunyai kapasitas penyimpan panas yang ditinggi dibandingkan dengan material gerabah (vorno)  yang sebenarnya.Kata kunci : Alluvial, mangrove, Vorno, sagu lempeng, lempengan, kapasitas panas
Co-Authors Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir Abdurrachman Baksir, Abdurrachman Bahar Subur, Abd. Barawis, Nurul Asmania H. Beginer Subhan Dietriech Geoffrey Bengen Drakel, Andreyan Eko S Wibowo Firdaut Ismail Halikuddin Umasangaji Hatari, Anisa Eka Putri Hawis H Madduppa Ikbal Marus Ikbal Marus Ikbal Marus, Ikbal Irmalita Tahir Irmalita Tahir Irmalita Tahir, Irmalita Ismail, Firdaut Iswandi Wahab Legohiwo, Misnawati Mohammad Ridwan Lessy, Mohammad Ridwan Mujizat Kawaroe Mu’min Mu’min Najamuddin N Najamuddin Najamuddin, Najamuddin Nasir Haya Nebuchadnezzar Akbar Noho, Arif Gamalama Nurdiansah, Doni Raden, Muhammad Sahlan R Raismin Kotta Rommy M. Abdullah Rustam E Paembonan Rustam E Paembonan S Baddu Salnuddin Salnuddin, Salnuddin Simon I Patty Siolimbona, Abdul Ajiz Sudin, Salwa Waluyo Waluyo Wibowo, Eko S Yadi D Naipon Zulhan A Harahap, Zulhan A Zulhan A. Harahap