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The Impact of Spatio-temporal Variation on Seawater Quality and its Effect on the Domination of Sargassum polycystum on Small Islands in Western Indonesian Waters |
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| รหัสดีโอไอ | |
| Creator | 1. I Ketut Sumandiarsa 2. Dietriech Geoffrey Bengen 3. Joko Santoso 4. Hedi Indra Januar |
| Title | The Impact of Spatio-temporal Variation on Seawater Quality and its Effect on the Domination of Sargassum polycystum on Small Islands in Western Indonesian Waters |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2564 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 14 |
| Journal No. | 1 |
| Page no. | 80-92 |
| Keyword | Macroalgae, Sargassum polycystum, Small Island, Spatio-temporal variations |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Sargassum sp. is one of the most diverse genera of brown seaweed and widely found in Indonesian waters. This study aimed to provide the latest information on the role of spatial-temporal variation on water quality in macroalgal assemblages in three different locations in the western part of Indonesian waters, which are Tidung, Sebesi, and Bintan Islands. This research was conducted in two different seasons in 2019. Multivariate analysis is used to determine the relationship between environmental characteristics and macroalgae diversity. The results showed that the parameters of nitrate, ammonia, and salinity differed significantly between islands (p < 0.05). Besides that, seasons significantly affected the dissolve oxygen (DO), temperature, salinity, selenium (Se), and iron (Fe) (p < 0.05). Variation in the concentrations of DO, nitrate, and ammonium nitrogen, and iron (Fe), are the characteristics of Bintan Island. Tidung Island is characterized by variations in salinity and the presence of element zinc (Zn). Sebesi Island shows identical variations in temperature, DO, copper (Cu), and manganese (Mn). It found that Sargassum polycystum was the most important species in all locations and seasons and was significantly dominant in Sebesi and Bintan waters. It can be inferred that the high concentration of barium, copper, manganese, DO, and nitrate in the seawater could lead to the dominance of this species. The results demonstrate that spatio-temporal variations in the research locations had significantlyinfluenced the diversity of macroalgal assemblages in the western part of Indonesian waters. |
