The potential for carbon dioxide sequestration in the biomass of the seaweed Kappaphycus alvarezii in the marine farms of Santa Catarina
DOI:
https://doi.org/10.52945/rac.v37i2.1815Keywords:
Kappaphycus alvarezii, algiculture, carbon tradingAbstract
The Federal Government of Brazil has developed the proposal for Project of Law No. 2148/15 to regulate the national carbon market, promoting the generation of national methodologies for quantifying greenhouse gases, adapted and adjusted to the species involved, the climate and the several Brazilian biomes. Seaweed occupy a prominent position among the species capable of absorbing CO2. For Kappaphycus alvarezii, the average captured C content is 1.7% of its live weight. Following the methodology proposed by the Intergovernmental Panel on Climate Change protocol, the volume of C and CO2 sequestered by K. alvarezii in Santa Catarina was calculated based on three different scenarios. The CO2 sequestration potential of marine farms in Santa Catarina, calculated from the average productivity of the state’s first two harvests (2021/2022 and 2022/2023), was 2,292.71t harvest-1 of CO2 and 624.72t harvest-1 of C. These results illustrate the importance of Santa Catarina in accessing this promising carbon credit market, boosting the profit of Santa Catarina’s marine farms.
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