Impact of Land Use on Oceanography Parameters and Quality of Seaweed Kappaphycus alvarezii in Coastal Waters of South Sulawesi, Indonesia
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Land use, oceanography, Kappapicus alvarezii, South Sulawesi
Abstract
This paper provides information on the influence of land use in South Sulawesi on the load of nitrate and phosphate nutrients in the water and its impact on the quality of Kappaphycus alvarezii seaweed grown in coastal areas. Data were collected at three coastal locations: Marang in Pangkajene Regency, Sanrobone in Takalar Regency, and Sajoanging in Wajo Regency, for three repetitions of nutrient loads. Oceanographic parameters were measured at nine points at each location, including temperature, salinity, pH, current waters, nitrate, phosphate, and total suspended solid (TSS). The quality of seaweed observed was chlorophyll-a, carrageenan content, water content, and ash content in seaweed reared in coastal waters. The research results show that land use is related to the amount of nutrient load; in the Sajoanging location, where agricultural land use is dominant, it produces high nitrate and phosphate loads, while in other locations, it is relatively lower. This nutrient content influences oceanographic conditions and the quality of cultivated Kappaphycus alvarezii.
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