Judul: Konektivitas Social-Ecological System (SES) Mangrove Pandansari, Desa Kaliwlingi, Kabupaten Brebes, Provinsi Jawa Tengah
Abstrak: Abrasi yang terjadi pada tahun 2000-2008 di pesisir Desa Kaliwlingi, Kabupaten Brebes mengakibatkan hilangnya luas mangrove sejauh 7 km dengan luas 186 ha, hal tersebut disebabkan oleh konversi dan degradasi pada ekosistem mangrove. Ekosistem mangrove memiliki empat jasa layangan lingkungan, salah satunya adalah pendukung. Ekosistem mangrove Pandansari telah dikembangkan menjadi ekowisata Dewi Mangrove Sari yang bertujuan untuk mempromosikan kesadaran lingkungan dan edukasi wisata. Interaksi antara sistem ekologi dan sosial dapat menciptakan perubahan sosial dan ekologi bersamaan. Penelitian ini bertujuan untuk menganalisis keterkaitan Social-Ecological System pada ekosistem mangrove Pandansari agar dapat mengembangkan strategi pengelolaan yang berkelanjutan. Pengambilan data dilakukan pada bulan November 2023 di ekosistem mangrove Pandansari. Metode yang digunakan yaitu participatory mapping dan participatory data collection yang dilakukan dengan cara observasi lapangan dan wawancara mendalam dengan responden. Hasil menunjukkan bahwa ekosistem mangrove Pandansari (RS) tergolong dalam kategori padat dengan biota (RU) yang hidup cukup beragam. Keberadaan pengguna sumberdaya (RA) sangat berpengaruh terhadap semua kegiatan yang ada pada ekosistem mangrove Pandansari, sehingga memunculkan aturan-aturan yang sudah ditetapkan (RG). Konektivitas SES yang terjadi di mangrove Pandansari, menunjukan keterkaitan yang erat antar resources system (RS) dengan resources actor (RA) dengan banyaknya dampak yang diberikan oleh resources actor (RA)., Abrasion that occurred in 2000-2008 on the coast of Kaliwlingi Village, Brebes Regency resulted in the loss of 7 km of mangrove area with an area of 186 ha, this was caused by conversion and degradation of the mangrove forest ecosystem. The mangrove ecosystem has four environmental services, one of which is support. The Pandansari mangrove forest has been developed into the Dewi Mangrove Sari ecotourism which aims to promote environmental awareness and tourism education. Interactions between ecological and social systems can create concurrent social and ecological change. This research aims to analyze the relationship between the Social Ecological System in the Pandansari mangrove ecosystem in order to develop sustainable management strategies. Data collection was carried out in November 2023 in the Pandansari mangrove ecosystem. The methods used were participatory mapping and participatory data collection which was carried out by means of field observations and in-depth interviews with respondents. The results show that the Pandansari (RS) mangrove ecosystem is classified in the dense category with quite diverse living biota (RU). The existence of resource users (RA) greatly influences all activities in the Pandansari mangrove ecosystem, giving rise to established regulations (RG). The SES connectivity that occurs in the Pandansari mangrove shows a close relationship between the Resource System (RS) and Resource Actors (RA) with many impacts provided by Resource Actors (RA).
Keyword: social-ecological systems, mangroves, connectivity, ecosystem services

Judul: Social-Ecological System (SES) Connectivity in Padansari Mangrove Ecosystem, Kaliwlingi Village, Brebes Regency, Central Java Province
Abstrak: Abrasi yang terjadi pada tahun 2000-2008 di pesisir Desa Kaliwlingi, Kabupaten Brebes mengakibatkan hilangnya luas mangrove sejauh 7 km dengan luas 186 ha, hal tersebut disebabkan oleh konversi dan degradasi pada ekosistem mangrove. Ekosistem mangrove memiliki empat jasa layangan lingkungan, salah satunya adalah pendukung. Ekosistem mangrove Pandansari telah dikembangkan menjadi ekowisata Dewi Mangrove Sari yang bertujuan untuk mempromosikan kesadaran lingkungan dan edukasi wisata. Interaksi antara sistem ekologi dan sosial dapat menciptakan perubahan sosial dan ekologi bersamaan. Penelitian ini bertujuan untuk menganalisis keterkaitan Social-Ecological System pada ekosistem mangrove Pandansari agar dapat mengembangkan strategi pengelolaan yang berkelanjutan. Pengambilan data dilakukan pada bulan November 2023 di ekosistem mangrove Pandansari. Metode yang digunakan yaitu participatory mapping dan participatory data collection yang dilakukan dengan cara observasi lapangan dan wawancara mendalam dengan responden. Hasil menunjukkan bahwa ekosistem mangrove Pandansari (RS) tergolong dalam kategori padat dengan biota (RU) yang hidup cukup beragam. Keberadaan pengguna sumberdaya (RA) sangat berpengaruh terhadap semua kegiatan yang ada pada ekosistem mangrove Pandansari, sehingga memunculkan aturan-aturan yang sudah ditetapkan (RG). Konektivitas SES yang terjadi di mangrove Pandansari, menunjukan keterkaitan yang erat antar resources system (RS) dengan resources actor (RA) dengan banyaknya dampak yang diberikan oleh resources actor (RA)., Abrasion that occurred in 2000-2008 on the coast of Kaliwlingi Village, Brebes Regency resulted in the loss of 7 km of mangrove area with an area of 186 ha, this was caused by conversion and degradation of the mangrove forest ecosystem. The mangrove ecosystem has four environmental services, one of which is support. The Pandansari mangrove forest has been developed into the Dewi Mangrove Sari ecotourism which aims to promote environmental awareness and tourism education. Interactions between ecological and social systems can create concurrent social and ecological change. This research aims to analyze the relationship between the Social Ecological System in the Pandansari mangrove ecosystem in order to develop sustainable management strategies. Data collection was carried out in November 2023 in the Pandansari mangrove ecosystem. The methods used were participatory mapping and participatory data collection which was carried out by means of field observations and in-depth interviews with respondents. The results show that the Pandansari (RS) mangrove ecosystem is classified in the dense category with quite diverse living biota (RU). The existence of resource users (RA) greatly influences all activities in the Pandansari mangrove ecosystem, giving rise to established regulations (RG). The SES connectivity that occurs in the Pandansari mangrove shows a close relationship between the Resource System (RS) and Resource Actors (RA) with many impacts provided by Resource Actors (RA).
Keyword: social-ecological system, mangrove, konektivitas, jasa ekosistem

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