Judul: Model Biaya  Mitigasi Standar Mangrove Dengan Valuasi Manfaat Tidak Langsung di Pulau Pari,  DKI Jakarta
Abstrak: Hutan mangrove di Indonesia memiliki potensi besar dan memiliki manfaat sebagai mitigasi perubahan iklim. Mangrove di Pulau Pari di DKI Jakarta, memiliki luas hutan mangrove sekitar 9.3 ha. Namun kini, ekosistem mangrove di Pulau Pari mengalami penurunan yaitu salah satunya akibat degradasi habitat, abrasi dan kehilangan keanekaragaman hayati. Pentingnya penilaian potensi penyimpanan karbon dan penahan abrasi pada vegetasi mangrove merupakan salah satu langkah dalam mengestimasi biaya mitigasi perubahan iklim. Penelitian ini bertujuan untuk membandingkan standar biaya mitigasi mangrove dengan valuasi manfaat tidak langsung sebagai penyimpan karbon di Pulau Pari, DKI Jakarta. Metode yang digunakan yaitu perhitungan stok karbon dan serapan karbon melalui above ground biomass, valuasi manfaat tidak langsung dengan metode replacement cost, serta model dinamik temporal. Hasil menunjukkan bahwa perluasan area mangrove mempengaruhi nilai manfaat tidak langsung serta meningkatkan biaya rehabilitasi, tetapi dapat menurunkan biaya mitigasi.
Keyword: mangrove, carbon stocks, mitigation, abrasion

Judul: Estimasi Stok dan Emisi Karbon Mangrove di Pulau Pari, Kabupaten Kepulauan Seribu, DKI Jakarta
Abstrak: Strategi mitigasi perubahan iklim global dapat dilakukan salah satunya melalui pemanfaatan ekosistem blue carbon. Ekosistem mangrove menjadi salah satu ekosistem pesisir yang memiliki potensi menyerap dan menyimpan karbon. Pulau Pari, Kepulauan Seribu merupakan salah satu kawasan pesisir dengan potensi ekosistem mangrove tinggi. Penelitian ini dilakukan untuk menghitung estimasi stok dan serapan karbon mangrove alami di Pulau Pari. Penelitian dilakukan di pada lima stasiun di utara, timur, dan barat Pulau Pari selama periode Oktober 2023 hingga Mei 2024. Stok dan serapan karbon dihitung pada carbon pool biomassa dan sedimen mangrove. Berdasarkan hasil penelitian, diketahui mangrove di Pulau Pari berada pada kondisi baik dengan kerapatan mencapai 1363 ind/ha. Mangrove Pulau Pari memiliki stok karbon total sebesar 28.791,1143 ton C dan serapan karbon dioksida total sebesar 105.567,5291 ton CO2 e. Stasiun satu memiliki nilai stok dan serapan karbon tertinggi yang didukung kelimpahan, biomassa, dan jenis substrat. Kerapatan memiliki hubungan yang kuat dengan biomassa, stok karbon, dan serapan karbon dioksida pada ekosistem mangrove., One of the strategies to mitigate global climate change is through the use of blue carbon ecosystems. The mangrove ecosystem is one of the coastal ecosystems that has the potential to absorb and store carbon. Pulau Pari, Kepulauan Seribu is a coastal area with high potential for mangrove ecosystems. This research was conducted to calculate estimates of natural mangrove carbon stock and uptake on Pulau Pari. The research was conducted at five stations in the north, east and west of Pari Island during the period October 2023 to May 2024. Carbon stocks and uptake were calculated from the carbon pool of biomass and mangrove sediment. Based on research results, it is known that the mangroves on Pulau Pari are in good condition with a density of 1363 ind/ha. Pari Island mangroves have a total carbon stock of 28.791,1143 tons C and a total carbon dioxide uptake of 105.567,5291 tons CO2 e. Station one has the highest carbon stock and uptake values supported by abundance, biomass and substrate type. Density has a strong relationship with biomass, carbon stock and carbon dioxide uptake in mangrove ecosystems.
Keyword: mangrove, blue carbon, Pari Island

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum