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: Estimasi Cadangan Karbon dan Serapan CO2 di Atas Permukaan Tanah pada Tegakan Mangrove di Kabupaten Rembang, Jawa Tengah
Abstrak: Mangrove biasanya difungsikan sebagai upaya pencegahan abrasi pantai. Hutan mangrove di Kabupaten Rembang terletak pada dua desa, yaitu Desa Pasar Banggi dan Desa Tireman. Tujuan penelitian ini untuk mendapatkan informasi mengenai serapan CO2 pada tegakan mangrove di Desa Pasar Banggi dan Desa Tireman, Kabupaten Rembang. Jenis mangrove yang ditemukan dalam penelitian ini adalah Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, dan Avicennia marina. Penelitian ini dilaksanakan pada bulan Juni-Juli 2022. Pembuatan plot menggunakan metode transek jalur dengan purposive sampling. Biomassa atas permukaan tanah dihitung menggunakan persamaan alometrik dan dikalikan dengan faktor konversi biomassa ke karbon sebesar 0, 47 (IPCC 2006) untuk memperoleh cadangan karbon kemudian dikalikan dengan atom relatif C agar diperoleh serapan CO2 mangrove. Hasil penelitian menunjukkan bahwa kerapatan mangrove tidak begitu mempengaruhi besarnya biomassa serta cadangan karbon. Kerapatan mangrove tertinggi sebesar 8400 ind/ha. Biomassa memiliki hubungan yang positif dengan cadangan karbon dan serapan CO2. Nilai biomassa atas permukaan tanah tertinggi terdapat pada stasiun 3 sebesar 740,69 ton/ha dan biomassa atas permukaan tanah terendah pada stasiun 4 sebesar 348,46 ton/ha. Nilai diamater mempunyai pengaruh yang besar terhadap nilai biomassa. Mangrove di Kabupaten Rembang memiliki cadangan karbon di atas permukaan tanah sebesar 281,18 ton/ha dengan kemampuan penyerapan CO2 sebesar 206,30 ton/ha/tahun., Mangroves usually function to prevent coastal abrasion. Mangrove forests in Rembang Regency are located in two villages, namely Pasar Banggi Village and Tireman Village. The purpose of this study was to find out information about the estimated amount of CO2 absorption in mangrove stands. The types of mangroves found in this study consists of Rhizophora mucronata, Rhizophora stylosa, Rhizophora apiculata, and Avicennia marina. This research was conducted in JuneJuly 2022. Plots were determined using a path transect method with purposive sampling. The aboveground biomass was calculated using an allometric equation and multiplied by a biomass-to-carbon conversion factor of 0.47 (IPCC 2006) to obtain the value of carbon stocks and then multiplied by the relative atomic mass of C to obtain the value of CO2 absorbed by the mangroves. The results showed that mangrove density did not significantly affect the amount of biomass and carbon stock. The highest mangrove density reached 8400 ind/ ha. Biomass provided a positive relationship with carbon stocks and CO2 uptake. The highest aboveground biomass value was found at station 3 reaching 740,69 tons/ha and the lowest aboveground biomass was at station 4 of consisting 348,46 tons/ha. The diameter value has a large influence on the biomass value. Mangroves in Rembang Regency have above-ground carbon stocks of 281,18 tons/ha with a carbon sequestration capacity of 206,30 tons/ha/year.
Keyword: mangrove, biomass, carbon, carbon stock, CO2 sequestration

Judul: Studi Kasus Liver Neoplasia pada Anjing Shih Tzu
Abstrak: Liver neoplasia is the excessive and uncontrolled replication of hepatocytes that forms nodules visible in ultrasonography. The purpose of this study is to study and discuss the characteristic, diagnosis and treatment of liver neoplasm through the interpretation of ultrasonography and hematology in a Shih Tzu dog. Ultrasonography is conducted with a Chison Q8 ultrasound machine with a 5 to 7 MHz frequency convex probe on lateral recumbency. The blood cells, liver enzymes and nodules sizes were the main parameters in this study. The results in the period of three years from 2021 to 2023 were interpreted and supported with secondary data sources. The Shih Tzu dog is 14 years old in the year 2023 with a body weight of 5.21kg. No obvious clinical signs were observed during previous examinations. However, lethargy, vomiting and anorexia were recorded in its latest examination. Thrombocytosis, granulocytosis, high liver enzymes and hypoglycemia, which are some of the neoplastic clinical manifestations were also presented by this patient. Besides, liver neoplasm, spleen neoplasm and biliary sludge were the sonogram findings of this patient. The liver and spleen neoplasm was observed stable, while the biliary sludge volume fluctuated. The treatment strategy recorded is Ondansetron, Samylin®, Ornipural and Ursodeoxycholic acid.
Keyword: Blood biochemistry profile, Hematology, Liver Neoplasia, Shih Tzu, Ultrasonography