Judul: Pendugaan Simpanan Karbon Mangrove di Kawasan Mangrove Muara Sungai Musi, Sumatra Selatan
Abstrak: Ekosistem mangrove membentuk siklus karbon yang saling terhubung dan menghasilkan simpanan karbon yang lebih besar dari tipe hutan tropis lainnya. Karbon mangrove memiliki peran penting dalam penyerapan emisi gas rumah kaca yang terkandung dalam atmosfer bumi. Kebutuhan data terkait karbon mangrove sangat penting dalam memprediksi kontribusi dan kemampuan ekosistem pesisir dalam pengendalian iklim secara nasional dan internasional. Perhitungan simpanan karbon dilakukan pada hutan mangrove Delta Muara Sungai Musi, Kabupaten Banyuasin, Provinsi Sumatra Selatan. Hasil penelitian menunjukan hutan mangrove memiliki simpanan karbon maksimum mencapai 509 ton ha-1 dengan rata rata simpanan karbo sebesar 121 ton ha-1 . Simpanan karbon ini terkandungan pada spesies dominan yaitu A. marina, A. alba, dan S. caseolaris. Informasi simpanan karbon ini diharapkan menjadi bahan pertimbangan dalam aktivitas antropogenik secara berkelanjutan di sekitar hutan mangrove, dan juga dapat dijadikan bahan rujukan bagi penelitian selanjutnya
Keyword: carbon, climate change, mangrove

Judul: Estimation of Mangrove Carbon Sequestration Based  on Environmental Characteristics in the Coastal Area of Tanjung Village, Sumenep,  Madura
Abstrak: Ekosistem pesisir memiliki potensi serapan karbon yang besar dan mampu menyimpannya hingga ribuan tahun. Mangrove menyerap CO2 dan mengubahnya menjadi karbon organik (karbohidrat) melalui proses fotosintesis. Oleh karena itu, penelitian perlu dilakukan untuk mengetahui potensi simpanan dan serapan karbon ekositem mangrove di pesisir Desa Tanjung, Kabupaten Sumenep, Madura. Data serapan dan simpanan karbon diperoleh menggunakan metode alometrik dan Walkley and Black. Kawasan mangrove di Pesisir Desa Tanjung memiliki luasan 13,75 ha. Spesies mangrove yang mendominasi di pesisir Desa Tanjung yaitu spesies Sonneratia alba. Stasiun 4 memiliki simpanan dan serapan karbon mangrove tertinggi yaitu 18,65 ton C/ha dan 68,39 ton CO2eq/ha. Simpanan karbon sedimen tertinggi terdapat di Stasiun 4 (35,87 ton C/ha). Mangrove Desa Tanjung mampu menyimpan karbon sebesar 491,88 ton C dengan nilai serapan karbon pada tegakan mangrove yaitu 1543,33 ton CO2eq., Coastal ecosystems have the potential to absorb large amounts of carbon and are able to store it for thousands of years. These ecosystems include seagrass ecosystems, salt marsh ecosystems and mangrove ecosystems. Mangroves absorb CO2 and convert it into organic carbon (carbohydrates) through the process of photosynthesis. Therefore, research needs to be carried out to determine the potential for carbon storage and sequestration in the mangrove ecosystem on the coast of Tanjung Village, Sumenep Regency, Madura. Allometric and Walkley and Black methods obtained carbon sequestration and storage data. The mangrove area on the coast of Tanjung Village has an area of 13,75 ha. Mangrove species that dominates Tanjung Village’s coast is Sonneratia alba. Station 4 has the highest mangrove carbon storage and sequestration, which were 18,65 ton C/ha and 68,39 ton CO2eq/ha. The highest sediment carbon storage was at Station 4 (35,87 ton C/ha). Tanjung Village mangroves were capable of storing carbon of 491,88 ton C with a carbon sequestration value in mangrove stands of 1543,33 ton CO2eq.
Keyword: mangrove, pemanasan global, perubahan iklim, simpanan karbon, carbon storage, climate change, global warming

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