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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

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

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.

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

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

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 Efektivitas Program Peremajaan Sawit Rakyat (PSR) pada Pekebun Sawit di Kecamatan Silangkitang Kabupaten Labuhanbatu Selatan Syahril, Noni Malini; Sabrina, Raja; Suarti, Budi
Jurnal Sosial Ekonomi Pertanian Vol 21 No 3 (2025): Oktober, 2025
Publisher : Hasanuddin University

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

The Smallholder Oil Palm Rejuvenation Program (PSR) is a national program that aims to increase the productivity of smallholder palm oil plantations by replanting old and unproductive trees to make them more sustainable and of higher quality. This research aimed to determine effectiveness of the PSR program in Silangkitang District, South Labuhanbatu Regency, through an approach that assesses the suitability of program implementation based on PSR regulations and evaluates the PSR program using the CIPP evaluation model. The research was conducted from September to November 2025. This research is quantitative descriptive with qualitative analysis. Data collection techniques used interviews and questionnaires. The research respondents were selected using random sampling, namely 51 farmers who had participated in the PSR program during the 2019-2025 period. The results of the reseacrh show that the implementation of PSR has not reached the target of 200 ha/year. The realization of rejuvenation is still hampered by farmer administration, land legality issues, the length of the technical recommendation issuance process, and farmers' concerns about losing income while the plants are not yet producing. The implementation of the PSR program still has discrepancies, especially in the plant maintenance stage, such as fertilization and pest control. The dissemination of the PSR program, ongoing guidance and monitoring for farmers by Food Security and Agriculture Agency of South Labuhanbatu District are also not yet optimal. Evaluation effectiveness of the PSR program through the CIPP evaluation model shows that it is effective. However, there are still several aspects of each CIPP component that need to be evaluated further, especially the input aspect, and follow-up is needed to improve implementation of the PSR program so that the program objectives can be achieved optimally.

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