Abstract. Harefa MS, Nasution Z, Mulya MB, Maksum A. 2021. Mangrove species diversity and carbon stock in silvofishery ponds in Deli Serdang District, North Sumatra, Indonesia. Biodiversitas 23: 655-662. Mangrove-based silvofishery ponds are promoted as a win-win solution for biodiversity conservation, climate change mitigation as well as income generation for coastal communities. This study aimed to analyze the species diversity and carbon stock of mangrove vegetation in silvofishery ponds in Tanjung Rejo Village, Percut Seituan Sub-district, Deli Serdang District, North Sumatra, Indonesia. Data of the mangrove species were obtained using vegetation analysis, and the potential carbon stock was estimated based on allometric equations of both above- and below-ground tree biomass. For this purpose, plot samples from 22 silvofishery ponds were taken by establishing 5 aligned circular plots, each with a radius of 5.64 m, perpendicular to the coastline and with a distance of 15 meters between their perimeters. The results show that the mangrove species with the highest Importance Value Index (IVI) was Rhizophora apiculata (122.05%), followed by Excoecaria agallocha (42.29%) and Avicennia marina (36.84%), and the lowest IVI was Sonneratia caseolaris (1.48%). Higher IVI values indicate a larger carbon deposit from mangrove vegetation in silvofishery ponds. Our results indicate that mangrove area coverage of 44-80% per hectare in silvofishery ponds can deposit 40-50 tonnes of carbon per hectare and have greater potential carbon stock compared to coverage below 40%. The mangrove management activities with the sylvofishery scheme have a good impact on the community's economy and also maintain the existence of mangroves as carbon storage.
AbstrakKegiatan Pengabdian Masyarakat ini bertujuan untuk meningkatkan perekonomian Masyarakat nelayan di Desa Bagan Serdang Kecamatan Pantai Labu Kabupaten Deli Serdang melalui diversifikasi pengolahan ikan dalam bentuk pembuatan bakso dan nugget ikan. Metode yang digunakan pada kegiatan pengabdian kepada Masyarakat ini adalah dengan cara pelatihan yang meliputi pengolahan ikan menjadi bakso dan nugget, pengemasan produk olahan ikan, pengelolaan adminitrasi dan keuangan, serta pendapingan usaha. Hasil kegiatan ini menunjukkan bahwa kelompok mitra sudah mampu dalam melakukan pengolahan ikan menjadi bakso dan nungget. Mitra juga sudah mampu mengemas dan memasarkan hasil olahan tersebut dalam lingkup lokal. Pendapatan kelompok masyarakat melalui kegiatan ini juga mulai menunjukkan hasil. Keuntungan yang dapat dihasilkan melalui pengolahan ikan dapat mencapai 80-120%, tergantung dari jenis ikan yang digunakan.Kata kunci: Diversifikasi Pengolahan Ikan. Ekonomi masyarakatAbstractDiversification of fish processing as a fishing improvement of fisherman economic effort Community service activity aims to improve the economy of fishermen community in Bagan Serdang Village, Pantai Labu District, Deli Serdang Regency, through diversification of fish processing in the form of making meatballs and fish nugget. The method used in this community service activity is by training that includes processing fish into meatballs and nuggets, packing of processed fish products, administering and finance management, and also business. The results of this activity indicate that the partner group have been able to do fish processing into meatballs and nungget. Partners also have been able to package and market the processed products within the local scope. The income of the community groups through these activities also begins to show results. Profits that can be generated through fish processing can reach 80-120%, depending on the type of fish used.Keywords: Diversification of fish processing. Community economy
Studi ini bertujuan untuk menyelidiki potensi mangrove untuk pembangunan gerusan penghalang di Jalan Paluh Getah, Desa Tanjung Rejo, Kecamatan Percut Sei Tuan, Medan, Sumatera Utara, Indonesia. Pengelolaan hutan mangrove di Desa Tanjung Rejo mempromosikan pembelajaran tentang operasi ekologi, ekonomi dan sosial yang ditandai atas pemulihan keragaman hayati ekosistem mangrove. Tujuan dari pengkajian ini adalah untuk memutuskan pilihan skema yang tepat dalam pembangunan ekowisata di kawasan Jalan Paluh Getah, Tanjung Rejo. Metodologi yang digunakan adalah metode deskriptif. Melalui pengamatan, analisis isi dan konsultasi dengan pemangku kepentingan, pengelola, warga serta pengunjung, diperoleh informasi tentang pengembangan ekowisata mangrove yang dilakukan oleh pihak yang bertanggung jawab seperti pemerintah desa dan Kelompok Sadar Wisata (Pokdarwis). Temuan dan kesimpulan dari studi ini adalah model pengembangan ekowisata mangrove yang paling tepat di Desa Jalan Paluh Getah, adalah berbasis pariwisata yang diyakini dapat meningkatkan peluang potensi ekowisata. Saran yang dapat dijadikan sebagai masukan dan bahan pertimbangan dalam meningkatkan pengelolaan potensi berupa Sumber Daya Manusia (SDM) dan Sumber Daya Alam (SDA) untuk pengembangan ekowisata bahari yaitu melakukan pengelolaan potensi sumber daya pesisir yang ada di Pantai Mangrove Paluh Getah secara bersama-sama dengan penuh rasa tanggung jawab dan dilakukan secara berkelanjutan, selalu tetap berpegang pada perundang-undangan dan hukum yang berlaku dalam melakukan pengelolaan, mengadakan penyuluhan dan pelatihan secara rutin kepada masyarakat akan pentingnya pengelolaan potensi sumber daya pesisir untuk pengembangan ekowisata yang dapat meningkatkan perekonomian masyarakat.
Abstract-Environmental degradation and natural disasters caused by human activity today continue to increase. The main reason is the low environmental awareness. This indicates the failure of environmental education in schools. Rising levels of public education are not able to raise environmental awareness. The main cause is the integration of environmental educational material on the subject matter that is not supported by the media and appropriate learning resources that failed to establish the competence of graduates. UNIMED have vision and strategic plan for the development of science education. Therefore, the development model of environmental education is very relevant with the vision and the strategic plan. UNIMED received a grant of 60 hectares of mangrove areas in the Percut Sei Tuan District, Deli Serdang Regency to be managed and developed its preservation. The mangrove area is very suitable as media and learning resources of environmental education. However, there is no utilization of mangrove ecosystem models such as the media and learning resources for environmental education in schools. The research objective was to develop a model of mangrove ecosystem utilization as media and learning resources of environmental education. The research method is qualitative descriptive involving school partners in improving the learning model. Design of learning model is to integrate the three subjects of senior high school, ie. Geography, Biology, and Economics. They were packaged in the form of themes that are relevant to the preservation of the mangrove ecosystem. The effectiveness of the model is determined from the model's ability to fulfill basic competence achievement subjects on the curriculum 2013 of Senior High School. The research stages include focus group discussion for analysis of curriculum, syllabus, preparation of integration model, and development of learning tools. The results showed that the mangrove ecosystem can be used as media and learning resources for environmental education at the Senior High School. The model is very relevant to integrate the three subjects of Geography, Biology, and Economics. Based on the curriculum 2013 analysis of senior high school, the basic competencies of relevant subjects can be integrated on Grade 10 for Biology subjects and Grade 11 for Geography and Economics Subjects. The results also showed that the model is very efficient to apply. It can meet the achievements of some basic competence in some subjects so it is easier for teachers to mobilize students to the field and minimize costs.
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