Muhtadi, Ahmad and Pulungan, Ahyar and Nurmayah, Nurmayah and FADLHIN, AZIZAH and MELATI, PUPUT and SINAGA, RENI ZULIKA and ULIYA, RAIHAN and RIZKI, MIFTAH and Rohim, Nur and IFANDA, DAYUN and LEIDONALD, RUSDI and WAHYUNINGSIH, HESTI and Hasani, Qadar (2020) The dynamics of the plankton community on Lake Siombak, a tropical tidal lake in North Sumatra, Indonesia (Cek Similarity). Society for Indonesian Biodiversity.

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Abstract

Muhtadi A, Pulungan A, Nurmaiyah, Fadlhin A, Melati P, Sinaga RZ, Uliya R, Rizki M, Rohim N, Ifanda D, Leidonald R, Wahyuningsih H, Hasani Q. 2020. The dynamics of the plankton community on Lake Siombak, a tropical tidal lake in North Sumatra, Indonesia. Biodiversitas 21: 3707-3719. The tidal lake is a very dynamic estuary ecosystem and very vulnerable to environmental stresses and disturbances. Plankton is an aquatic organism that is very easily affected by environmental pressures and disturbances. This study aimed to reveal the phenomenon of plankton dynamics in tropical tidal lakes in Indonesia. The study was conducted at Siombak Lake from Sept 2018 toAugust 2019. Data were collected at high and low tides every month during the full month. The data analysis included plankton abundance, diversity index, and the relationship between water quality and plankton with PCA and succession analysis. The results showed that in Siombak Lake was found 66 genera which consisted of 54 phytoplankton genera and 12 zooplankton genera. Plankton abundance is higher in parts of the lake (stations 1-8) than in the river (stations 9-11) at both high and low tide. Temporally it shows that plankton abundance is higher in the rainy season (Feb-August, outside May) than in the rainy season (Sept-Jan, and May). Spatially, plankton in Siombak Lake at high tide is more influenced by TSS, phosphate, and salinity, while at low tide, it is influenced by TSS, Water transparency, BOD, silicate, salinity, and dissolved oxygen. Temporally, plankton in Siombak Lake at high tide is more influenced by salinity, conductivity, Debit, TSS, and salinity, while at low tide, it is influenced by salinity, conductivity, turbidity, TSS, TDS, DO, BOD, and COD. Based on the plankton Frontier succession graph, it shows that Siombak Lake is included in stage 1 and stage 2. Stage 1 occurs before the rainy season (August-September) and the peak of the dry season (MarchApril).

Item Type:	Other
Subjects:	Q Science > Q Science (General) S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User:	Mr. Qadar Hasani
Date Deposited:	16 Jan 2023 06:38
Last Modified:	16 Jan 2023 06:38
URI:	http://repository.lppm.unila.ac.id/id/eprint/47857

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