Judul: Potential of Secondary Mangrove Forest
Biomass Carbon Stock in Sungsang IV Village, South Sumatra
Abstrak: Hutan mangrove sekunder memiliki nilai jasa ekosistem yang dapat menanggulangi perubahan iklim, walaupun tidak sebaik hutan mangrove primer. Hutan Desa Sungsang IV digunakan sebagai objek untuk melihat dan menganalisis bagaimana kerapatan dan keragaman vegetasi mangrove, serta estimasi potensi stok karbon biomassa di hutan mangrove sekunder. Analisis vegetasi dan kondisi lingkungan dilakukan pada 38 plot untuk menghitung nilai kerapatan dan keragaman spesies hutan mangrove sekunder, serta individu tingkat pohon untuk mengestimasi potensi stok karbon biomassa dengan persamaan alometrik. Rerata kerapatan vegetasi mangrove Hutan Desa Sungsang IV pada tingkat pohon 86 individu ha-1, tingkat pancang 583 individu ha-1, dan tingkat semai 9809 individu ha-1. Terdapat 12 spesies mangrove yang teridentifikasi, yakni Sonneratia caseolaris, Rhizophora apiculata, Avicennia alba, Nypa fruticans, Kandelia candel, Brugueira parviflora, Avicennia marina, Xylocarpus granatum, Aegiceras corniculatum, Acrostichum aureum, Acanthus ilicifolius, dan Bruguiera gymnorrhiza. Rerata estimasi potensi stok karbon biomassa vegetasi mangrove (tingkat pohon) Hutan Desa Sungsang IV sebesar 98 ton C ha-1., Secondary mangrove forests have ecosystem service value that can mitigate climate change, although they are not as good as primary mangrove forests. Sungsang IV Village Forest is used as an object to see and analyze the density and diversity of mangrove communities, as well as the estimation of potential biomass carbon stocks in secondary mangrove forests. Vegetation and environmental condition analyses were carried out on 38 plots to calculate the density and diversity values of mangrove secondary forest, as well as individual tree levels, to estimate potential biomass carbon stocks using allometric equations. The average density of mangrove vegetation in Sungsang IV Village Forest at the tree level was 86 individuals ha-1, the sapling level was 583 individuals ha-1, and the seedling level was 9809 individuals ha-1. There are 12 identified mangrove species, namely Sonneratia caseolaris, Rhizophora apiculata, Avicennia alba, Nypa fruticans, Kandelia candel, Brugueira parviflora, Avicennia marina, Xylocarpus granatum, Aegiceras corniculatum, Acrostichum aureum, Acanthus ilicifolius, and Bruguiera gymnorrhiza. The average estimated potential carbon stock of mangrove vegetation biomass (tree level) of Sungsang IV Village Forest is 98 tons C ha-1.
Keyword: hutan mangrove sekunder, keragaman spesies, stok karbon biomassa

Judul: Estimation of Carbon Content in Mangrove Stands in the Karangsong Mangrove Ecotourism Area, Indramayu Regency
Abstrak: Hutan mangrove mempunyai potensi mitigasi perubahan iklim karena kemampuannya dalam menyerap dan menyimpan karbon dalam waktu lama dan dalam jumlah besar. Adanya alih fungsi lahan dapat merubah komposisi vegetasi hutan mangrove dan mengurangi simpanan karbon. Penelitian ini bertujuan untuk mengetahui komposisi vegetasi pada kawasan ekowisata mangrove Karangsong dan mengetahui kemampuan mangrove dalam menyerap serta menyimpan karbon. Metode dalam penelitian ini yaitu jalur garis berpetak pada 10 titik stasiun pengamatan yang dianggap mewakili keseluruhan karakteristik vegetasi dengan total intensitas sampling sebesar 5%. Analisis kandungan karbon dilakukan menggunakan persamaan alometrik. Dari hasil analisis vegetasi terdapat 4 jenis mangrove, yiatu Avicennia marina, Avicennia alba, Rhizophora stylosa, Rhizophora mucronata. Total biomassa, kandungan karbon dan simpanan karbon dioksida seluruh kawasan seluas 20 ha yaitu beturut-turut sebesar 99,14 ton/ha; 46,6 tonC/ha; 171 tonCO2 /ha. Besarnya kandungan karbon yang tersimpan di kawasan ekowisata Mangrove Karangsong dipengaruhi oleh faktor lingkungan yang terbentuk pada tegakan mangrove., Mangrove forests have the potential to mitigate climate change because of their ability to absorb and store carbon for a long time and in large quantities. The existence of land use change can change the composition of mangrove forest vegetation and reduce carbon sequestration. This study aims to determine the composition of vegetation in the Karangsong mangrove ecotourism area and to determine the ability of mangroves to absorb and store carbon. The method in this study was a line transect plot at 10 points of observation stations which are considered to represent the overall characteristics of the vegetation, the total sampling intensity is 5%. Carbon content analysis was carried out using allometric equations. From the results of the vegetation analysis, there were 4 types of mangroves, namely Avicennia marina, Avicennia alba, Rhizophora stylosa, and Rhizophora mucronata. The total biomass, carbon content, and carbon dioxide uptake in the entire area of 20 ha are 99.14 tons/ha; 46.6 tonsC/ha; and 171 tonsCO2/ha, respectively. The amount of carbon stored in the Karangsong Mangrove ecotourism area was influenced by environmental factors formed in the mangrove stands.
Keyword: biomassa, karbon, mangrove, vegetasi

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