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All Journal Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal Pembelajaran dan Biologi Nukleus Journal of Applied Electrical Engineering Bioscientist : Jurnal Ilmiah Biologi Djtechno: Jurnal Teknologi Informasi
Sabrina, Raja
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Social Sciences

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MODEL DINAMIK PENGELOLAAN EKOSISTEM MANGROVE BERBASIS SILVOFISHERY DI PANTAI TIMUR SUMATERA UTARA Siswoyo, Bambang H.; Mardiana, Siti; Sabrina, Raja
Djtechno: Jurnal Teknologi Informasi Vol 5, No 2 (2024): Agustus
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/djtechno.v5i2.4848

Abstract

Model dinamik pengelolaan ekosistem mangrove di Pantai Timur Sumatera Utara Tujuan penelitian ini adalah untuk mengetahui produktivitas ekosistem mangrove melalui produksi serasah yang terdiri dari potensi produksi perikanan melalui pendekatan produksi serasah mangrove, menghitung nilai nilai ekosistem mangrove dari potensi perikanan produksi serasah mangrove, perikanan budidaya tambak silvofishery, dan perikanan tangkap serta menentukan model dinamik nilai ekosistem mangrove untuk perikanan budidaya tambak silvofishery dan perikanan tangkap. Penelitian dilakukan pada bulan Agustus-Desember 2023, dengan lokasi pengambilan sampel di Kabupaten Langkat, Deli Serdang dan Serdang Bedagai. Data yang diperlukan meliputi karakteristik vegetasi mangrove, parameter fisika dan kimia lingkungan perairan, produksi serasah mangrove, data sosial ekonomi terkait pemanfaatan ekosistem mangrove, dan data sekunder. Potensi perikanan yang didukung oleh mangrove dihitung dengan metode yang dikembangkan oleh Mahmudi (2008), nilai perikanan budidaya dan tangkap diperoleh melalui pendekatan surplus konsumen. Berdasarkan penelitian, produksi serasah mangrove yang terdiri dari Avicennia marina, Avicennia alba, Rhizophora mucronata dan Sonneratia alba mencapai 3,67 g/m2/hari atau 13.282 kg/ha/thn. Potensi perikanan  budidaya tambak (udang) sebesar 91833 ton/th dan perikanan tangkap sebesar 8756 ton/th. Hasil simulasi model pada kondisi eksisting (rehabilitasi mangrove 0.7 ha/th), nilai total pemanfaatan mangrove tidak berkelanjutan karena terus mengalami penurunan. Sedangkan rehabilitasi mangrove minimal di atas 2.27 ha/th menghasilkan nilai ekonomi yang berkelanjutan. Rehabilitasi mangrove juga perlu memperhatikan komposisi jenis mangrove untuk menghasilkan potensi perikanan tangkap yang dapat didukung mangrove secara optimal sehingga dapat meningkatkan nilai total pemanfaatan mangrove..
Tourism Suitability Index of The Mangrove Area of Pulau Banyak Village, Langkat, North Sumatra: An Ecological Approach Manullang, Helentina Mariance; Lubis, Zulkarnain; Sabrina, Raja
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5642

Abstract

This study aims to obtain data on the suitability of ecotourism areas based on ecological parameters. The parameters observed were mangrove density & thickness, tidal height, mangrove species diversity, and the types of biota that live in it. To calculate mangrove density, the quadratic transect method was used with a size of 10 x 10 m as many as 20 plot pieces. While mangrove thickness is calculated by measuring the outer distance of mangroves towards the mainland. Furthermore, the parameters of biota diversity were carried out by direct observation techniques at the research site. The results of the analysis showed a mangrove thickness of 197.37 metres with a density of 1,520 individuals/ha. There are 10 mangrove species including Sonneratia alba, Avicennia marina, Rhizophora apiculate, R. mucronate, Bruguiera gymnorrhiza, Lumnitzera littorea, Acanthus ilicifolius, Acrostichum speciosum, Pemphis acidula, Nypa fruticans. The average tide height is 1.24 m and 20 species of biota consisting of 3 bivalve species, 1 Gastropoda, 6 fish, 6 birds, 2 shrimps, and 2 crabs. The results of the tourism suitability analysis showed 91% with a very suitable category
Mangrove Ecosystem Condition at Three Regency on The East Coast of North Sumatra: A Review Siswoyo, Bambang Hendra; Mardiana, Siti; Sabrina, Raja
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5679

Abstract

This study aims to analyze the condition of mangrove ecosystems in the three districts on the east coast of North Sumatra. Data collection was carried out from June to December 2023 in the Deli Serdang, Serdang Bedagai, and Langkat districts. The sampling location was determined by purposive sampling, and the target location was a mangrove area that had aquaculture activities. There were 9 sampling points, 3 points each in each district. Observations were made using a 10 x 10 m quadratic transect method with 20 replications. Density, relative density, frequency, relative frequency, dominance, and relative dominance were calculated to obtain the importance index value of each species. The calculation results showed that Rhizopohora apiculata with a density of 2359-4208 ind/ha with a relative density between 43.7-48.8%. The highest frequency and relative frequency values are also in R. apiculata, and R. mucronata species between 0.67 - 1 with a relative frequency between 25 - 44.4%. The highest species dominance and relative dominance of R.apiculata was 0.000010272 - 0.00001105, with a relative dominance of 23.07 - 40.25%. Therefore, these two species are the species with the highest importance index >65%.
Macrozoobenthos Diversity in The Fisheries Mangrove Ecotourism Area in Pulau Banyak Village Langkat District Manullang, Helentina Mariance; Lubis, Zulkarnain; Sabrina, Raja
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13660

Abstract

Mangroves are important ecosystems located in tidal areas and become habitats for various types of biota, including macrozobenthos. Macrozobenthos is a group of animals that inhabit the bottom waters of mangrove ecosystems. This study aims to analyze the diversity of macrozobenthos species in the mangrove ecotourism area of Pulau Banyak village, Langkat Regency, North Sumatra. This research was conducted from October 2022 to October 2023 in the fisheries-based mangrove ecotourism area in Pulau Bayak village, Langkat Regency. The research location was divided into three research stations. Macrozobentos observations were made once a month. Sample collection is done by collecting directly by hand, the samples collected are on the sample map (plot) measuring 1 x 1 meter making as many as 10 pieces for every 100 m2. Data were analyzed using the Paleontological Statistic (PAST) Version 4.0 tool. Parameters studied include diversity index, evenness, species richness, and dominance. Based on the results of the analysis, it is known that the diversity index is in the medium category with a value of 2.4-2.5, while the evenness index is in the high category with a value of 0.91 - 0.92, then the species richness index is in a low category with a value of 2.20 - 2.22 and the dominance index shows that there are no certain species that dominate this ecosystem with an index value close to 0. Thus, it can be concluded that this fisheries-based mangrove ecotourism area is in good condition and can support the lives of organisations associated with mangrove ecosystems.
Analisis Valuasi Ekonomi Hutan Mangrove Sebagai Dasar Pengembangan Kawasan Ekowisata Manullang, Helentina Mariance; Lubis, Zulkarnain; Sabrina, Raja
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 11, No 1 (2025): Januari 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v11i1.16809

Abstract

This research was conducted for 2 months from June to July 2023 in Pulau Banyak village, Langkat Regency, North Sumatra Province. This research aims to analyze the economic valuation of mangrove ecosystems, which can later be used as the basis for the development of ecotourism areas. This research was conducted using a survey method and data collection was carried out by interviewing the community of Pulau Banyak village both directly and indirectly interacting with the mangrove ecosystem. The number of respondents in this study was 91. The results showed that 72% of respondents worked as fishermen. The results of the economic valuation analysis show that the direct benefit value of mangrove forests in Pulau Banyak village is Rp. 372,240,000.00 per year, the indirect benefit value is Rp. 242,939,008.00 per year. Optional benefits of Rp. 23,787,891.75 per year and the benefits of this mangrove forest of Rp. 3,986,797.5 per year. The total economic value of the mangrove ecosystem of Pulau Banyak village, Langkat Regency is Rp. 642,953,697.25 per year. With this condition, the mangrove forest of Pulau Banyak village, Langkat Regency can be developed as an ecotourism area.
Carbon Estimation in Mangrove Forests of The East Coast of North Sumatra Siswoyo, Bambang Hendra; Mardiana, Siti; Sabrina, Raja
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6405

Abstract

Mangrove forests are important ecosystems, providing various ecological, economic, and social benefits. They serve as habitats for a wide range of species, act as natural barriers against coastal erosion, and play a key role in carbon sequestration, which helps to reduce the impacts of climate change. This study used surveys to tree biomass growth and quantify the carbon stocks trapped in this ecosystem. The methodology applied in measuring carbon in mangrove forests is similar to that used in primary forests, although some unique aspects need to be considered, such as the accumulation of non-biodegradable debris. Aspects that need to be considered, such as litter accumulation cannot be included in technical carbon calculations. included in technical carbon calculations. The condition of mangrove forests in North Sumatra shows a significant decline, with a 61.21% significant decline, with a in primary mangrove area between 1990 to 2015, mainly due to land conversion for aquaculture and agriculture. Carbon sequestration in mangrove forests is crucial to mitigating climate change, with their capacity to store carbon in biomass and sediment. Rehabilitation efforts, such as propagation planting and seedlings, showed expected survival rates and large carbon storage potential, with total carbon stocks reaching 558.07 mgC ha-1. It is important to understand carbon storage dynamics and influencing factors, such as duration and nutrient inputs, for effective management and conservation strategies
Sistem Kostum Kontrol Otomatis dan Monitoring Rumah Menggunakan ESP32 Tambak, Josua Adrian Purba; Nizam, Farhan; Sabrina, Raja; Pamungkas, Daniel Sutopo
Journal of Applied Electrical Engineering Vol. 8 No. 1 (2024): JAEE, June 2024
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v8i1.7585

Abstract

Sistem kostum kontrol rumah otomatis menggunakan ESP 32 adalah sebuah sistem yang dirancang untuk mengontrol dan memonitoring keamanan rumah secara efektif. Sistem ini menggunakan ESP 32 sebagai pengendali utama untuk memproses informasi dan mengirimkan perintah ke perangkat lain yang terhubung ke dalam sistem. Sistem ini terdiri dari beberapa perangkat seperti sensor suhu, sensor kelembapan, dan smoke detector. Fitur tambahan memungkinkan pemantauan real-time dan kendali jarak jauh melalui aplikasi terhubung ke internet. Pengujian modul output dan input mikrokontrol menunjukkan fungsi relay yang baik. Pengujian software Android menegaskan kemampuan aplikasi mengontrol sistem dengan sukses, sementara analisis delay sekitar 9,67 detik untuk perintah ON dan 10,99 detik untuk perintah OFF. Variasi delay menjadi pertimbangan untuk pengembangan selanjutnya guna mengoptimalkan respons sistem. Keseluruhan, sistem ini berhasil meningkatkan keamanan rumah, memberikan kenyamanan pengguna, dan dapat diakses dari jarak jauh melalui internet.
Macrozoobenthos Diversity in The Fisheries Mangrove Ecotourism Area in Pulau Banyak Village Langkat District Manullang, Helentina Mariance; Lubis, Zulkarnain; Sabrina, Raja
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13660

Abstract

Mangroves are important ecosystems located in tidal areas and become habitats for various types of biota, including macrozobenthos. Macrozobenthos is a group of animals that inhabit the bottom waters of mangrove ecosystems. This study aims to analyze the diversity of macrozobenthos species in the mangrove ecotourism area of Pulau Banyak village, Langkat Regency, North Sumatra. This research was conducted from October 2022 to October 2023 in the fisheries-based mangrove ecotourism area in Pulau Bayak village, Langkat Regency. The research location was divided into three research stations. Macrozobentos observations were made once a month. Sample collection is done by collecting directly by hand, the samples collected are on the sample map (plot) measuring 1 x 1 meter making as many as 10 pieces for every 100 m2. Data were analyzed using the Paleontological Statistic (PAST) Version 4.0 tool. Parameters studied include diversity index, evenness, species richness, and dominance. Based on the results of the analysis, it is known that the diversity index is in the medium category with a value of 2.4-2.5, while the evenness index is in the high category with a value of 0.91 - 0.92, then the species richness index is in a low category with a value of 2.20 - 2.22 and the dominance index shows that there are no certain species that dominate this ecosystem with an index value close to 0. Thus, it can be concluded that this fisheries-based mangrove ecotourism area is in good condition and can support the lives of organisations associated with mangrove ecosystems.
Co-Authors Daniel Sutopo Pamungkas, Daniel Sutopo Fachry Abda El Rahman Manullang, Helentina Mariance Nizam, Farhan Siswoyo, Bambang H. Siswoyo, Bambang Hendra Siti Mardiana Tambak, Josua Adrian Purba