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Size Distribution and Habitat Characteristics of Coconut Crabs (Birgus latro) in Tomajiko, Hiri Island District, Ternate City, Province North Maluku Rugaya H. Serosero; Yuyun Abubakar; Riyadi Subur; Mesrawati Sabar; Saman; Ariyanti H. Fadel; Rina; Sri Endah Widiyanti; Salim Abubakar
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6257

Coconut crabs (Birgus latro) is a fishery resource that is only found in eastern Indonesia, and the waters of Ternate City are an area that has this potential. This research aims to determine the size distribution and habitat characteristics of coconut crabs in Tomajiko, Hiri Island District. The data collection method consists of several stages, namely determining stations, distributing bait, catching coconut crabs, morphometric measurements, and observing environmental parameters. Determination of stations in this study was carried out based on topographic differences in Tomajiko (divided into two stations). Coconut crab catching uses the roaming survey method. The bait used is coconut meat that has been split into several parts and coconut meat that has been mashed. The morphometric dimensions measured were chest length (carapace length) and body weight. The habitat characteristics observed were the type and extent of vegetation, organic matter content and substrate texture, environmental parameter measurements (soil temperature, air humidity and soil pH). The results of the research showed that the coconut crabs caught at both stations had relatively the same length, but the largest weight was found at station 2. Habitat characteristics in Tomajiko, Hiri Island strongly support the survival of coconut crabs.

Pengolahan Kerupuk Cumi Pada Kelompok UMKM DAFALA Di KotaTernate Abubakar, Yuyun; Serosero, Rugaya H; Abubakar, Salim; Subur, Riyadi; Rina; Sunarti; Fadel, Ariyati H.
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 3 (2024): Juli - September
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i3.9291

Squid (Loligo sp) is one of the fishery resources from the cephalopod class which has important economic value. The cephalopod class consists f several groups tht are widely consumed, namely squid, cuttlefish and octopus. Squid is an important commercial fishery commodity that is often found in coastal areas of Asia (Sin et al.,2009). Partners are a group of women who often process fish products but are not yet productive in carrying out processing innovations. With conseling methods and training on squid cracker processing. PKM results training un making squid crackers by exploiting the potential of squid resources in the Togafo sub distric,west Ternate sub district went smoothly and the enthusiasm of the participants was high. Enthusiasm for squid crackers products in two color, namely white (without ink) and black (wth ink). PKM activities Increase knowledge and improve community skills and build comunity enthusiasm for entrepreneurship.

Dialog Pro Kelautan: Potensi Perikanan Maluku Utara Dalam Menjawab Tantangan Mutu Ekspor Tamrin, Tamrin; Subur, Riyadi; Abdullah, Taufiq
Lebah Vol. 18 No. 2 (2025): Maret: Pengabdian
Publisher : IHSA Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/lebah.v18i2.293

Maluku Utara memiliki potensi kelautan yang melimpah, menjadikannya sebagai salah satu daerah unggulan dalam sektor perikanan di Indonesia. Produk perikanan lokal seperti tuna, cakalang, dan kerapu berpotensi besar untuk diekspor. Namun, tantangan utama yang dihadapi adalah peningkatan mutu produk yang sesuai dengan standar internasional. Keterbatasan fasilitas rantai dingin, penanganan pascapanen yang kurang optimal, serta pemahaman yang terbatas mengenai regulasi mutu menjadi hambatan utama dalam meningkatkan daya saing produk perikanan di pasar global. Dialog Pro Kelautan dilaksanakan untuk membahas potensi perikanan Maluku Utara serta tantangan yang dihadapi dalam menjawab tuntutan mutu ekspor. Metode pelaksanaan melibatkan diskusi interaktif melalui siaran langsung di RRI Ternate, dengan narasumber dari berbagai sektor, termasuk akademisi, pemerintah, serta pelaku usaha. Diskusi ini berfokus pada pemenuhan standar internasional dalam pengolahan hasil perikanan dan penguatan kapasitas sumber daya manusia melalui pelatihan dan pendampingan. Hasil dari dialog ini menunjukkan adanya kesadaran yang tinggi di kalangan pelaku usaha dan masyarakat pesisir mengenai pentingnya mutu ekspor. Rekomendasi yang dihasilkan mencakup perlunya pengembangan infrastruktur pendukung seperti cold storage, penerapan teknologi pengolahan berbasis digital, serta peningkatan pelatihan bagi nelayan dan pelaku usaha. Sinergi antara pemerintah, akademisi, dan sektor swasta menjadi kunci dalam menciptakan ekosistem perikanan yang berdaya saing global. Kesimpulan dari dialog ini adalah pentingnya penerapan standar internasional dan optimalisasi rantai pasok untuk meningkatkan daya saing produk perikanan Maluku Utara di pasar ekspor global

Dialog Interaktif Rencana Pembangunan Jangka Menengah Daerah (RPJMD) Maluku Utara 2025-2029 Tamrin; Muhammad Aris; Riyadi Subur; Taufiq Abdullah
Jurnal Ragam Pengabdian Vol. 2 No. 2 (2025): Agustus
Publisher : Lembaga Teewan Journal Solutions

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62710/11w8ym78

Dialog Interaktif sebagai wadah komunikasi antara pemerintah Maluku Utara dengan masyarakat dalam rangka penyusunan RPJMD 2025-2029 berfungsi sebagai sarana efektif untuk menyerap aspirasi publik serta menyampaikan arah kebijakan pembangunan daerah. Proses dialog berlangsung secara langsung dan interaktif, memungkinkan masyarakat berpartisipasi aktif menyampaikan kebutuhan, harapan, dan kritik secara terbuka kepada pemangku kebijakan. Fokus utama pembahasan tertuju pada isu strategis seperti pengembangan infrastruktur, peningkatan kualitas pelayanan publik, pemberdayaan ekonomi lokal, serta pengelolaan sumber daya alam secara berkelanjutan. Interaksi dua arah yang berlangsung membantu mengurangi kesenjangan informasi antara pemerintah dan masyarakat sekaligus memperkuat transparansi serta akuntabilitas penyusunan RPJMD. Narasumber dari berbagai kalangan, termasuk pejabat pemerintah, akademisi, dan tokoh masyarakat, menyampaikan perspektif berbasis pengalaman dan data relevan, sehingga dialog menjadi lebih kaya dan aplikatif. Partisipasi luas dari berbagai lapisan masyarakat menandakan tingginya minat untuk terlibat dalam proses pembangunan daerah secara langsung. Hasil dialog ini memberikan masukan yang konkret dan konstruktif bagi pemerintah daerah guna merumuskan kebijakan pembangunan yang inklusif dan responsif terhadap kebutuhan masyarakat. Dialog Interaktif ini tidak hanya meningkatkan pemahaman publik tentang prioritas pembangunan, tetapi juga mendorong terciptanya hubungan yang harmonis antara pemerintah dan warga. Model komunikasi ini layak dijadikan contoh bagi daerah lain yang ingin memperkuat mekanisme partisipasi publik serta memastikan pembangunan yang berkelanjutan dan berbasis aspirasi nyata masyarakat.

Vertical distribution macrozoobenthos on mangrove ecosystem in coastal Ternate City Subur, Riyadi; Abubakar, Salim; Sidik, Marjanuddin A; Rina, Rina; Sunarti, Sunarti; Abubakar, Yuyun; Akbar, Nebuchadnezzar
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47253

Macrozoobenthos are benthic animals commonly found in substrate-based ecosystems, such as mangrove forests. Their presence in mangrove ecosystems significantly influences the decomposition activities within the substrate or sediment layers. The aim of this study was to identify species composition, species density, community structure of macrozoobenthos, and their vertical distribution within sediments on mangrove ecosystem in Ternate City. The study was conducted from August to September 2021 using the line transect method, with macrozoobenthos samples collected through iron pipe corers. Data analysis included species density, species diversity, dominance index, evenness index, niche width, microhabitat niche overlap, and the relationship between macrozoobenthos density and depth. The results showed that the macrozoobenthos species composition consisted of two species (Uca spp. and Nereis spp.), with a total of 25 individuals. Species diversity within mangrove ecosystem was found to be low, with one dominant species and a relatively even distribution. The species with the broadest habitat niche was the worm (Nereis spp.), while significant microhabitat niche overlap occurred between the worm (Nereis spp.) and the crab (Uca spp.). Simple linear regression analysis indicated that substrate depth did not correlate with macrozoobenthos species density.Keywords:aquaticbenthoscoastalfaunaterrestrial

Ecological study of gastropod on seagrass ecosystem in small island sea North Maluku Indonesia Sunarti, Sunarti; Abubakar, Yuyun; Abubakar, Salim; Subur, Riyadi; Rina, Rina; Akbar, Nebuchadnezzar; Widhi, Raut Nugrahening; Sabar, Mesrawaty; Paluphi, Raut Wahyuning; Disnawati, Disnawati
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47249

The seagrass ecosystem is a habitat and food source for fish and other aquatic biota. One of the biota commonly found in seagrass beds is gastropods . This aim research was carried of identifying the composition of gastropod species, assessing ecological indices which include species density, species diversity, species dominance, species evenness, distribution patterns of gastropods and their use in the seagrass ecosystem on Maitara Island. Gastropod sampling was carried out at low tide. The gastropod samples determined based on morphological characteristics such as shell shape, shell color, shell mouth opening and spiral circle. Based on the research results, the composition of gastropod species found in the seagrass ecosystem is 32 species. The density of gastropod species was highest in the seagrass ecosystem on Maitara Island, at each different station. The highest density of gastropod species was Morula uva and Strombus luhuanus, while the lowest density was Trhocus maculatus, Littorina scabra and Nassarius sp. The diversity of gastropod species at all stations is classified as moderate. For the dominance index at all stations, there is no dominant species in the category. The evenness of species at station 1 and 4 is classified as more evenly distributed, while at stations 2 dan 3 it is classified as very evenly distributed. The overall distribution pattern of gastropods is classified as clustered and random. Totals 32 species of gastropods, 10 of them are used by the people of Maitara Island as food for consumption.Keywords:benthicconditionimpacttropicalsurvival

Sustainability status of ecotourism-based seagrass ecosystem management on Maitara Island. Indonesia Abubakar, Salim; Rina, Rina; Subur, Riyadi; Kepel, Rene C; Sunarti, Sunarti; Serosero, Rugaya H; Abubakar, Yuyun; Akbar, Nebuchadnezzar; Najamuddin, Najamuddin; Achmad, M. Janib; Fadel, Ariyati H.; Al Hadad, M. Said; Widhi, Raut Nugrahening; Paluphi, Raut Wahyuning
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47064

Seagrass ecotourism is a tourism activity based on seagrass ecosystem as an educational tour by seeing the ecology of seagrass meadows and associated biota. Conservation awareness and improving community welfare, seagrass ecotourism is a nature-based tourism strategy with the aim of environmental conservation and containing aspects of community education and culture. Determining the sustainability status of seagrass ecosystem management is very important as a basis for future policy planning. The sustainability of seagrass ecosystems needs to be protected, so a policy strategy is applied in sustainable seagrass ecosystem management. The objectives of the study are: 1) determining the sustainability status of ecotourism-based seagrass ecosystem management based on ecological, economic and social dimensions, 2) determining the policy strategy for ecotourism-based seagrass ecosystem management. The results of the study obtained the sustainability status of ecotourism-based seagrass ecosystem management based on ecological dimensions is quite sustainable while the economic and social dimensions are less sustainable. The strategy for sustainable policy for managing seagrass ecosystems based on ecotourism on Maitara Island, Tidore Islands, namely education about seagrass ecosystems for the community, managing seagrass ecosystems based on ecotourism, increasing seagrass rehabilitation programs, maximum limits for carrying capacity of seagrass ecotourism, training for developing managers of seagrass ecotourism based on ecosystems, increasing job opportunities and business opportunities, legality of seagrass areas as conservation areas in the tourism utilization zone category and strengthening laws and institutions.Keywords:analysismultidimensionalsmall islandsustainabilitytourism

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 Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
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

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

Vertical distribution macrozoobenthos on mangrove ecosystem in coastal Ternate City Subur, Riyadi; Abubakar, Salim; Sidik, Marjanuddin A; Rina, Rina; Sunarti, Sunarti; Abubakar, Yuyun; Akbar, Nebuchadnezzar
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47253

Macrozoobenthos are benthic animals commonly found in substrate-based ecosystems, such as mangrove forests. Their presence in mangrove ecosystems significantly influences the decomposition activities within the substrate or sediment layers. The aim of this study was to identify species composition, species density, community structure of macrozoobenthos, and their vertical distribution within sediments on mangrove ecosystem in Ternate City. The study was conducted from August to September 2021 using the line transect method, with macrozoobenthos samples collected through iron pipe corers. Data analysis included species density, species diversity, dominance index, evenness index, niche width, microhabitat niche overlap, and the relationship between macrozoobenthos density and depth. The results showed that the macrozoobenthos species composition consisted of two species (Uca spp. and Nereis spp.), with a total of 25 individuals. Species diversity within mangrove ecosystem was found to be low, with one dominant species and a relatively even distribution. The species with the broadest habitat niche was the worm (Nereis spp.), while significant microhabitat niche overlap occurred between the worm (Nereis spp.) and the crab (Uca spp.). Simple linear regression analysis indicated that substrate depth did not correlate with macrozoobenthos species density.Keywords:aquaticbenthoscoastalfaunaterrestrial

Ecological study of gastropod on seagrass ecosystem in small island sea North Maluku Indonesia Sunarti, Sunarti; Abubakar, Yuyun; Abubakar, Salim; Subur, Riyadi; Rina, Rina; Akbar, Nebuchadnezzar; Widhi, Raut Nugrahening; Sabar, Mesrawaty; Paluphi, Raut Wahyuning; Disnawati, Disnawati
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan 2025: Special Issue ICFM
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.0.0.47249

The seagrass ecosystem is a habitat and food source for fish and other aquatic biota. One of the biota commonly found in seagrass beds is gastropods . This aim research was carried of identifying the composition of gastropod species, assessing ecological indices which include species density, species diversity, species dominance, species evenness, distribution patterns of gastropods and their use in the seagrass ecosystem on Maitara Island. Gastropod sampling was carried out at low tide. The gastropod samples determined based on morphological characteristics such as shell shape, shell color, shell mouth opening and spiral circle. Based on the research results, the composition of gastropod species found in the seagrass ecosystem is 32 species. The density of gastropod species was highest in the seagrass ecosystem on Maitara Island, at each different station. The highest density of gastropod species was Morula uva and Strombus luhuanus, while the lowest density was Trhocus maculatus, Littorina scabra and Nassarius sp. The diversity of gastropod species at all stations is classified as moderate. For the dominance index at all stations, there is no dominant species in the category. The evenness of species at station 1 and 4 is classified as more evenly distributed, while at stations 2 dan 3 it is classified as very evenly distributed. The overall distribution pattern of gastropods is classified as clustered and random. Totals 32 species of gastropods, 10 of them are used by the people of Maitara Island as food for consumption.Keywords:benthicconditionimpacttropicalsurvival

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