Supriadi Mashoreng
Departemen Ilmu Kelautan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Hasanuddin

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Penerapan Teknologi Restorasi Lamun Sebagai Upaya Mitigasi Degradasi Ekosistem Lamun di Kabupaten Pangkep Mahatma Lanuru; Rohani Ambo Rappe; Supriadi Mashoreng; Khairul Amri; Yayu A La Nafie; Muh. Banda Selamat; Rasyid Jalil; Muh Hatta; Muh Lukman
Jurnal Pengabdian Masyarakat Hasanuddin (JPMH) Vol.4. No.1 Maret 2023
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jpmh.v4i1.25337

Abstract

 The Seagrass bed ecosystem is one of the essential ecosystems besides mangroves in the coastal area of ​​Pundata Baji Village. However, the knowledge of coastal communities (fishermen) on the Pundata Baji regarding seagrass ecosystems' physical, ecological, and socio-economic roles is still limited. In addition, these coastal communities do not yet have the knowledge and skills to restore the damaged seagrass habitat (degraded). Therefore, awareness-rising programs and training efforts are needed, as well as demonstration plots regarding community-based seagrass restoration technology through transplantation (planting). Seagrass transplant trials used the Staple, the Frame/TERFS, and the rock anchor methods. The three transplantation methods introduced are simple, inexpensive, easy to learn, and applicable to the target group. Community understanding and awareness of the importance of seagrass ecosystems have increased after attending counseling and training. In addition, coastal communities have skills in seagrass transplantation after attending the training. Another target achieved from the seagrass transplant pilot activity is the availability of alternative fishing areas in the seagrass planting area for fishermen groups in the Pundata Baji coastal area.
Estimasi Stok Karbon Padang Lamun menggunakan Citra Spot-7 di Perairan Pulau Kodingarenglompo, Sangkarrang, Kota Makassar Muh Rais; Dwi Fajriyati Inaku; Wilma J.C. Moka; Supriadi Mashoreng; Dewi Yanuarita Satari; Nita Rukminasari
Jurnal Kelautan Tropis Vol 26, No 2 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i2.16496

Abstract

Seagrass is the most effective ecosystem in absorbing carbon. The ability of seagrasses to absorb CO2 from the atmosphere is better than terrestrial ecosystems. Image processing methods and information regarding potential carbon stocks in seagrass beds can then be used as a basis for managing carbon stocks found in coastal areas and small islands. This study aims to estimate the carbon stock of seagrass beds in the waters of Kodingarenglompo Island using remote sensing technology. This research was conducted from March to August 2020. The stages of the field survey were to identify the percentage of seagrass cover in 62 plot points. Seagrass carbon stocks are known based on seagrass cover percentage data using the regression equation. The estimation of seagrass carbon stocks in the study area is divided into two, namely AGC and BGC. The image processing stage is by using the random forest regression algorithm in mapping seagrass carbon stocks. The results of this research survey revealed six species of seagrass, namely Cymodocea rotundata, Enhalus acoroides, Halodule uninervis, Halophila ovalis, Thalassia hemprichii and Syringodium isoetifolium and were dominated by 2 species of seagrass, namely Thalassia hemprichii and Enhalus acoroides. The results showed that remote sensing can be used to map seagrass carbon stocks. Seagrass carbon stocks can be mapped with a maximum accuracy of 67% (SE=1.96 KgC/Pixel), and 85% (SE=7.86 KgC/Pixel) for AGC and BGC. From this model, the total ecosystem carbon stock in seagrasses in the waters of Kodingarenglompo Island is estimated to be around 178.98 tons of organic carbon with an area of seagrass beds of 81.29 hectares. The availability of seagrass carbon stock maps is very important to provide a better understanding of the spatial and temporal distribution of carbon dynamics.  Lamun adalah ekosistem yang paling efektif dalam menyerap karbon. Kemampuan lamun untuk menyerap CO2 dari atmosfer lebih baik dari ekosistem darat. Metode pengolahan citra serta informasi mengenai potensi cadangan karbon pada padang lamun selanjutnya dapat dijadikan sebagai dasar pengelolaan stok karbon yang terdapat di pesisir dan pulau-puau kecil. Penelitian ini bertujuan untuk mengestimasi stok karbon padang lamun di perairan Pulau Kodingarenglompo menggunakan teknologi penginderaan jauh. Penelitian ini dilaksanakan dari bulan Maret sampai Agustus 2020. Tahapan survei lapangan yaitu mengidentifikasi persentase tutupan jenis padang lamun sebanyak 62 plot titik. Stok karbon lamun diketahui berdasarkan data persentase tutupan lamun menggunakan persamaan regresi. Estimasi stok karbon padang lamun pada daerah kajian dibedakan menjadi dua yaitu AGC dan BGC. Tahap pengolahan citra yaitu dengan menggunakan algoritma regresi random forest dalam memetakan stok karbon lamun. Hasil survei penelitian ini mendapatkan enam jenis lamun yaitu Cymodocea rotundata, Enhalus acoroides, Halodule uninervis, Halophila ovalis, Thalassia hemprichii dan Syringodium isoetifolium dan didominasi oleh 2 jenis lamun yaitu Thalassia hemprichii dan Enhalus acoroides. Hasil penelitian menunjukkan bahwa penginderaan jauh dapat digunakan untuk memetakan stok karbon lamun. Stok karbon lamun dapat dipetakan dengan akurasi maksimum 67% (SE=1,96 KgC/Piksel), 85% (SE=7,86 KgC/Piksel) untuk AGC dan BGC. Dari model tersebut, total stok karbon ekosistem pada lamun di perairan Pulau Kodingarenglompo diperkirakan sekitar 178,98 ton karbon organik dengan luas padang lamun yaitu 81,29 hektar. Ketersediaan peta stok karbon lamun sangat penting untuk memberikan pemahaman yang lebih baik tentang sebaran dinamika karbon spasial dan temporal.