Judul: Bibliometric Analysis of Mangrove Carbon Research
Distribution in Indonesia
Abstrak: Penelitian mengenai karbon mangrove yang menggunakan model alometrik sebagai penghitung biomassa sudah banyak dilakukan di Indonesia. Ketersediaan pustaka mengenai karbon mangrove yang menggunakan model alometrik semakin meningkat sehingga perlu dikaji dan dianalisis bibliometrik. Oleh karena itu, penelitian ini bertujuan menganalisis publikasi pustaka penelitian karbon mangrove di Indonesia, menganalisis distribusi penelitian mengenai karbon mangrove yang menggunakan model alometrik, serta menganalisis tema dan tren penelitian karbon mangrove Indonesia. Total pustaka diperoleh sebanyak 160 yang terdiri dari pengguna model alometrik dan pembuat model alometrik. Rhizophora apiculata, Rhizophora mucronata dan Avicennia marina merupakan spesies yang sering ditemukan pada penelitian karbon mangrove di Indonesia. Penelitian karbon mangrove sudah tersebar di 31 provinsi yang ada di Indonesia dan sebagian besar ekologinya berupa pesisir pantai. Model alometrik umum AGB dan BGB milik Komiyama et al. (2005) merupakan alometrik yang paling banyak digunakan dalam penelitian karbon mangrove di Indonesia. Kata kunci “biomass”, “mangrove”, “carbon stock” dan “carbon” merupakan kata kunci yang menggambarkan topik penelitian karbon mangrove., Research on mangrove carbon using allometric models for biomass estimation has been widely conducted in Indonesia. The availability of literature on mangrove carbon using allometric models is increasing, necessitating a thorough review and bibliometric analysis. Therefore, this study aims to analyze the publication of mangrove carbon research literature in Indonesia, analyze the distribution of research on mangrove carbon using allometric models, and analyze the themes and trends of mangrove carbon research in Indonesia. A total of 160 pieces of literature were obtained, consisting of users of allometric models and creators of allometric models. Rhizophora apiculata, Rhizophora mucronata, and Avicennia marina are species frequently found in mangrove carbon research in Indonesia. Mangrove carbon research has been conducted in 31 provinces across Indonesia, with most of the ecology being coastal areas. The general allometric models AGB and BGB by Komiyama et al. (2005) are the most widely used in mangrove carbon research in Indonesia. Keywords such as "biomass," "mangrove," "carbon stock," and "carbon" are indicative of the topics in mangrove carbon research.
Keyword: mangrove, allometric, bibliometric, carbon

Judul: Estimation of Mangrove Carbon Stock Biomass Using  a Combination of Allometric and Spatial Methods in Mangrovesari Ecotourism, Brebes, Central Java
Abstrak: SAKILA AZRIL LIA. Estimasi Stok Karbon Biomassa Mangrove Menggunakan Kombinasi Metode Alometrik dan Spasial di Ekowisata Mangrovesari, Brebes, Jawa Tengah. Dibimbing oleh FERY KURNIAWAN dan ARIO DAMAR. Mangrove berpotensi untuk menyerap dan menyimpan karbon lima kali lebih efektif dari rata-rata simpanan karbon hutan tropis. Upaya rehabilitasi yang dilakukan oleh pengelola Mangrovesari berdampak positif dalam menambah luasan hutan mangrove secara signifikan. Penelitian ini bertujuan untuk mengestimasi stok karbon total ekosistem mangrove menggunakan pendekatan integrasi alometrik dan spasial di ekowisata Mangrovesari, Desa Kaliwlingi, Brebes, Jawa Tengah. Hasil penelitian menunjukkan bahwa spesies mangrove yang mendominasi di ekowisata Mangrovesari adalah Rhizophora mucronata. Faktor lingkungan seperti suhu, pH, salinitas, dan DO serta tipe substrat berpengaruh terhadap kerapatan mangrove. Kerapatan mangrove memiliki pengaruh positif terhadap biomassa dan stok karbon mangrove. Nilai stok karbon mangrove di ekowisata Mangrovesari dikelompokan ke dalam 3 kategori kerapatan mangrove. Mangrove dengan kategori jarang mengandung stok karbon sebesar 42,02 ton/ha, kategori sedang sebesar 26,61 ton/ha, kategori rapat sebesar 444,60 ton/ha, dan stok karbon mangrove total sebesar 513,2334 ton/ha. Kata kunci: alometrik, biomassa, karbon, mangrove, spasial, SAKILA AZRIL LIA. Estimation of Stock Carbon Mangrove Biomass Using a Combination of Allometric and Spatial Methods in Mangrovesari Ecotourism, Brebes, Central Java Supervised by FERY KURNIAWAN and ARIO DAMAR. Mangroves have the potential to absorb and store carbon five times more effectively than the average tropical forest carbon storage. Rehabilitation efforts carried out by Mangrovesari managers have a positive impact in significantly increasing the area of mangrove forests. This study aims to estimate the total carbon stock of mangrove ecosystems using allometric and spatial integration approaches in Mangrovesari ecotourism, Kaliwlingi Village, Brebes, Central Java. The results showed that the dominating mangrove species in Mangrovesari ecotourism was Rhizophora mucronata. Environmental factors such as temperature, pH, salinity, and DO as well as substrate type affect mangrove density. Mangrove density has a positive influence on mangrove biomass and carbon stock. Mangrove carbon stock values in Mangrovesari ecotourism are grouped into 3 categories of mangrove density. Mangroves with sparse categories contain carbon stock of 42,02 tons/ha, medium category of 26,61 tons/ha, dense category of 444,60 tons/ha, and total mangrove carbon stock of 513,23 tons/ha. Keywords: allometrics, biomass, carbon, mangrove, spatialization
Keyword: stok karbon biomassa

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