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Gastropoda Community Structure in Seagrass Ecosystems in Bama Waters of Baluran National Park, Situbondo, East Java Widhi, Raut Nugrahening; Paluphi, Raut Wahyuning; Irham, Irham
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 1 (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.v17i1.2093

Gastropods are one of the macrobenthos associated with seagrass ecosystems. The purpose of this research is to determine the structure of the gastropod community in the seagrass ecosystem in the Bama waters of Baluran National Park. Collecting data on gastropods in seagrass ecosystems uses quadrat transects. The research was conducted in February 2024. Based on the research results, it was found that the richness of gastropod species in the seagrass ecosystem in the waters of Baluran National Park was in the low category at each station. The gastropod species diversity index value in this study was in the low category. The evenness index has a stable category, while the dominance index in this study does not have species dominance in gastropods. Seagrass density in this study was in the rare and dense categories.

Penanaman Mangrove Untuk Melestarikan Ekosistem Pesisir Di Pantai Cemara, Kecamatan Muncar, Banyuwangi, Jawa Timur widhi, raut nugrahening; paluphi, raut wahyuning; azis, muh aksa; findra, muhammad nur; abubakar, salim; rina, rina; sunarti, sunarti
Jurnal Pengabdian Khairun Vol 4, No 1 (2025)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jepk.v4i1.10064

Upaya penanaman mangrove menjadi sangat penting bagi kelestarian ekosistem pesisir. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan kesadaran masyarakat tentang pentingnya mangrove dan melibatkan mereka dalam upaya pelestarian lingkungan. Melalui penanaman mangrove, diharapkan masyarakat dapat memahami peran penting mangrove dalam menjaga keseimbangan ekosistem pesisir dan meningkatkan kualitas hidup. Kegiatan penanaman mangrove dapat memberikan dampak positif bagi lingkungan dan masyarakat sekitar serta menjadi langkah awal dalam upaya pelestarian ekosistem mangrove. Penanaman mangrove efektif untuk menstabilkan pesisir dari erosi dan sedimentasi serta meningkatan keanekaragan hayati. Mangrove yang baru ditanam berfungsi sebagai habitat bagi berbagai jenis biota laut dan satwa liar. Penanaman mangrove memberikan manfaat sosial ekonomi bagi masyarakat diantaranya peningkatan pendapatan dari hasil perikanan dan pengembangan ekowisata.

Dinamika Kualitas Air dan Kepadatan Plankton Terhadap Pertumbuhan Ikan Nilem (Osteochilus vittatus) di Kolam Budidaya Desa Beji, Kedungbanteng, Banyumas Astuti, Wahyu Widi; Sayidina, Aprilia; Sabrina, Aulia Putri; Widhi, Raut Nugrahening; Hidayati, Nuning Vita; Samudra, Sesilia Rani; Irawan, Hery
MAIYAH Vol 4 No 1 (2025): Maiyah : Vol. 4 No. 1 Maret 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.maiyah.2025.4.1.15613

Water quality becomes an important parameter to observe in aquaculture activities to understand its impact on fish growth. The objective of this research is to determine the effect of plankton density and the parameters of pH, temperature, and dissolved oxygen on the growth of Nilem fish (Osteochilus vittatus). The research was conducted from September 2024 to October 2024. The method used is quantitative, which includes plankton density, Nilem fish weight, and water quality, with the results presented as numerical data in the form of tables and graphs. The average temperature of the Nile tilapia cultivation pond is 32°C, dissolved oxygen with an average value of 4.95, and pH with an average value of 6. The highest fish growth rate was in the first week at 8.39%, followed by the fourth week at 7.29%, while the growth rates in the second and third weeks did not reach 5%. The results of the plankton density regression analysis found that 6% of the specific growth rate is influenced by this factor, while 94% is influenced by other factors. The correlation coefficient (r) obtained is 0.24 and the value of b = -11.611x (negative relationship). Based on PP No. 22 of 2021, the water quality value of this nilem fish farming pond still meets the water quality standard, but compared to the water quality for nilem fish farming, the average water quality value measured in this farming pond does not meet the standard. The observed plankton density over 4 weeks showed fluctuating results, and the growth rate of Nile tilapia also exhibited fluctuating results. The relationship between plankton density and the growth rate of Nile tilapia is classified as weak.

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

The abundance of zooxanthellae on massive and branching coral reefs at Bama Beach, Baluran National Park, Situbondo, East Java Widhi, Raut Nugrahening; Paluphi, Raut Wahyuning; Azis, Muh. Aksa; Abubakar, Salim; Sunarti, Sunarti
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.0.0.46918

Zooxanthellae are single-celled microalgae that live symbiotically in coral tissue. The porpose of this study was to determine the abundance of zooxanthellae in massive and branching corals. The research method used was descriptive analysis. The sampling technique used direct field sampling by chisels, both on massive coral reefs or branching coral reefs. Observation of zooxanthellae was conducted in the laboratory using a microscope. The results obtained from the research indicate that massive corals have a relatively higher abundance of zooxanthellae with values of 109 x 105 cells/cm than branching corals with values of 73 x 105 cells/cm. In addition, massive corals are more resistant to bleaching than branching corals due to their large reserves of zooxanthellae and their ability to adapt to environmental stress.Keywords:AbundanceZooxanthellaeMassiveBranching

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

The abundance of zooxanthellae on massive and branching coral reefs at Bama Beach, Baluran National Park, Situbondo, East Java Widhi, Raut Nugrahening; Paluphi, Raut Wahyuning; Azis, Muh. Aksa; Abubakar, Salim; Sunarti, Sunarti
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.0.0.46918

Zooxanthellae are single-celled microalgae that live symbiotically in coral tissue. The porpose of this study was to determine the abundance of zooxanthellae in massive and branching corals. The research method used was descriptive analysis. The sampling technique used direct field sampling by chisels, both on massive coral reefs or branching coral reefs. Observation of zooxanthellae was conducted in the laboratory using a microscope. The results obtained from the research indicate that massive corals have a relatively higher abundance of zooxanthellae with values of 109 x 105 cells/cm than branching corals with values of 73 x 105 cells/cm. In addition, massive corals are more resistant to bleaching than branching corals due to their large reserves of zooxanthellae and their ability to adapt to environmental stress.Keywords:AbundanceZooxanthellaeMassiveBranching

Analysis Relationship of The Current Velocity and Primary Productivity on Coral Reef in Bama Beach Paluphi, Raut Wahyuning; Widhi, Raut Nugrahening; Azis, Muh. Aksa
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
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.v25i3.9402

Coral reefs are one of the ecosystems with the highest biodiversity. The purpose of this study was to determine the relationship of current velocity has on primary productivity in coral reef ecosystems. Current velocity measurements using a current meter and primary productivity measurements using the Winkler method by ƒincubated for 5 hours. The results obtained from this study are that current velocity has an effect on primary productivity in coral reef ecosystems, R value 0.895 and R Square shows 80.1%. The significance value obtained Sig = 0,04, which means less than 0.05, it can be interpreted that the effect of current velocity on primary productivity is strong category. Based on the study results obtained, more research is necessary to find out how much the velocity of the current affects the primary productivity of the coral reef.

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