ORGANIC MATTER AND NUTRIENT PROFILE OF THE TWO-CURRENT-REGULATED-ZONE IN THE SOUTHWESTERN SUMATRAN WATERS (SSW)
| Autor: | A'an Johan Wahyudi, Tumpak Sidabutar, Ismiliana Wirawati, Indra B. Vimono, Mochamad Riza Iskandar, Yeti Darmayati, Hanny Meirinawati, Oksto Ridho Sianturi, Afdal, Nur Fitriah Afianti, Helfinalis |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Marine Research in Indonesia. 42:19-35 |
| ISSN: | 2443-2008 0216-2873 |
| Popis: | The Indian Ocean is influenced by monsoon system s which alter the ocean’s physical and chemical properties. Specifically, the south western Sumatran waters in the eastern Indian Ocean are considered a dual current regulated zone i.e. affected by S outh E quatorial C ounter C urrent (SECC) and S outh Java C urrent (SJC). This area is considered as having an important role in the transfer of organic matter or the biological pump. However, the information about this area is minimal , especially in term s of organic matter and nutrient profile. This study will update the recent information about the area, including the profile of particulate organic matter (POM) , macro-nutrient s , total suspended solid s (TSS) , macromolecule-degrading bacteria, and soft bottom macrobenthic organisms sampled from 26 stations in both the SECC-regulated zone and the SJC-regulated zone. The physical profile is typical of tropical waters and both zone s have a distinct profile of organic matter and nutrient s . The particulate organic carbon (POC), particulate organic nitrogen (PON), and TSS of the SECC-regulated zone can be considered higher than those of the SJC-regulated zone. This region is categorized as mesotrophic waters, especially from the surface up to 100 m. The production of nutrients and organic matter in the water column in this area contribute significantly to the abundance of heterotrophic bacteria and benthic organisms. |
| Databáze: | OpenAIRE |
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