Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan Nekton
Soukotta, Imanuel Villian Trayanta
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Fluxes of carbon dioxide gases (CO2) in the mangrove soil of Passo Village, Ambon City Rahman, Rahman; Ratuluhain, Eva Susan; Fakaubun, Fahrul Rozy; Soukotta, Imanuel Villian Trayanta
Nekton Vol 4 No 2 (2024): October
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v2i2.856

Abstract

Mangrove ecosystems play a significant role in carbon absorption. However, the accumulation of organic matter in mangrove sediments undergoes decomposition, which triggers the release of CO2 gas flux. This study aimed to analyze the CO2 gas flux in mangrove sediments of Negeri Passo, Ambon City. Gas data collection was performed using cylinder canopies at the three observation stations. Gas was passed through the syringe five times with an interval of 30s. Gas concentration analysis was carried out using the gas chromatography method, while CO2 flux was analyzed with flux equations referring to slope regression, volume and area of the scope, temperature, molecular weight of the gas, ideal gas settings, and time constants based on gas intake intervals. The results showed that the average CO2 concentration in St. 1 was 465.14 ± 96.52 ppm, and was the lowest compared to St. 2 and St. 3 with values of 638.60 ± 90.05 ppm and 630.98 ± 54.09 ppm, respectively. Meanwhile, the average CO2 flux was 50.44 mg/m2/hour. The largest CO2 gas flux was observed at St. 2 at 103.69 mg/m2/hour. Meanwhile, the lowest flux was found at St. 3, which was 16.24 mg/m2/hour. Based on this, it can be concluded that] the mangrove ecosystem in Negeri Passo has a higher concentration of CO2 gas than the average concentration of climate change stabilization scenarios. However, the CO2 flux was lower than that at other locations in the Ambon Dalam Bay area. In addition, the potential for significant carbon sequestration based on the Tier 1 model approach indicated that mangrove ecosystems in this location play an important role in climate change mitigation.
BIOEKONOMI IKAN TUNA SIRIP KUNING (Thunnus albacares) DARI LAUT BANDA Soukotta, Imanuel Villian Trayanta; Anaktototy, Yofita; Sangaji, Janer; Saleky, Valentine
PAPALELE (Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan) Vol 10 No 1 (2026): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/papalele.2026.10.1.50

Abstract

Yellowfin tuna stocks in Maluku waters have enormous potential. The catch per unit effort affects production in terms of kilograms to tons, depending on the size of the fish caught. The rate of exploitation of yellowfin tuna fisheries is greatly influenced by vessel activity and trips at sea; the higher the catch activity, the lower the CPUE value during the fishing operation. The objective of this study is to analyze the bioeconomics of yellowfin tuna fisheries in the Banda Sea. The research methods used are financial analysis and production surplus modeling. The results of the study show that the financial analysis operating profit is IDR 1,165,674,612,500; Net profit is Rp. 1,165,619,566,920 with a profit rate of 1.25% and a benefit cost ratio of 2.25; profitability is 69157; the break-even point is Rp. 111,780,032; the payback period is 2 months, which is feasible. The Schaefer model produced a regression analysis between CPUE and trips, yielding a value of α = 508.3 and a value of b = -0.0856, MSY Copt of 754,389 tons, and Eopt of 2,968 trips. In fact, the number of vessels at the research location is more than 15 vessels, which can be regulated so that the number of vessel trips and the number of vessels can be reduced to prevent the tuna stock population from being exploited to extinction.
Co-Authors Anaktototy, Yofita Fahrul Rozy Fakaubun Janer Sangaji, Janer Rahman Rahman Ratuluhain, Eva Susan Saleky, Valentine