Rozirwan, Rozirwan and Melki, Melki and Apri, Rezi and Nugroho, Redho Y and Fauziyah, Fauziyah and Agussalim, Andi and Iskandar, Iskhaq (2021) Assessment of phytoplankton community structure in Musi Estuary, South Sumatra, Indonesia (Peer Review 1&2). Fakultas MIPA, Universitas Sriwijaya. (Unpublished)
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Abstract
Phytoplankton is the most important primary producer in the estuary ecosystem, but its distribution and community structure is strongly affected by the water quality parameters. This study aimed to assess the distribution of phytoplankton abundance in the Musi Estuary waters and its relationship with the environmental parameters. The study was carried out by collecting water quality data (i.e. temperature, pH, dissolved oxygen, transparency and current) at eight observation stations. The samples were collected by a plankton net of 20 μm. The results showed that the water quality parameters were found in good condition for phytoplankton growth. The temperature was ranging from 29 to 30.5ºC, the salinity was 0-25 ppt, the pH was 7.6 to 8.1, the transparency was 4.71 to 31.67%, the nitrate was about 0.75 to 1.71 mg L-1, the phosphate was about 0.35 to 1.05 mg L-1 and the dissolved oxygen (DO) was 3.2 to 12.5 mg L-1. The phytoplankton was grouped into four classes: Bacillariophyceae (99.66%), Dinophyceae (0.28%), Conjugatophyceae (0.04%) and Cyanophyceae (0.02%), and 29 species of phytoplankton were identified. In addition, the analysis indicated that the phytoplankton abundance was ranging from 2.5 to 22,142.5 cells L-1, with Skeletonema costatum having the highest percentage (92.18%) in the species’ composition. The diversity index (H') showed that phytoplankton is generally in the low category (0.19<H<0.8), and it is dominated by S. costatum species (C>0.5). Based on the PCA analysis, the correlation between the water quality parameters with the phytoplankton abundance and diversity in Musi Estuary was characterised by DO, pH, transparency and currents, with a high similarity between the observation stations, especially in the high mixing area around the rivers’ mouth.
| Item Type: | Other |
|---|---|
| Subjects: | |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 54241-Marine Science (S1) |
| Depositing User: | Dr Melki melki |
| Date Deposited: | 14 Feb 2022 10:58 |
| Last Modified: | 14 Feb 2022 10:58 |
| URI: | http://repository.unsri.ac.id/id/eprint/65011 |
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