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Lalu Japa
Biology Education Department, Faculty of Teacher Training and Education, University of Mataram
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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Phytoplankton diversity as a bioindicator for water quality of Tanjung Aan, SEZ Mandalika Central Lombok Tisanianti Tisanianti; Dining Aidil Candri; Lalu Japa
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i5.5487

Abstract

Coastal waters of the Special Economic Zone (SEZ) Mandalika must be given more attention as it is the centre of tourism activities, including the International GP motor circuit on the island of Lombok. One of the bioindicators used in determining water quality is phytoplankton. Phytoplankton is tiny organisms that float on the water, have very weak swimming abilities, and their movements are heavily influenced by water flow. This research aimed to determine the diversity of phytoplankton as a bioindicator in the waters of Tanjung Aan, Central Lombok. Sampling sites in Tanjung Aan were determined by purposive sampling. This research was conducted from March to June 2023. The research results showed that there were six classes, 56 families, and 56 genera with 128 species in the community of phytoplankton. Species 113 were members of the class Bacillariophyceae. The phytoplankton abundance in three sampling sites ranged from 488 ind/L to 1109 ind/L. The species diversity indexes of phytoplankton in the three sampling sites ranged from 2.4 to 2.9, which means that the diversity is in the low category, and the species dominance index ranges from 0.12 to 0.15. This indicates that the condition of the waters of Tanjung Aan is slightly polluted.
Phytoplankton diversity as a bioindicator for water quality of siwak bay, Specific Economic Zone (SEZ) Mandalika Central Lombok Izma Paryantini; Dining Aidil Candri; Lalu Japa
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i5.5497

Abstract

The Mandalika Specific Economic Zone (SEZ) is a potential tourism industry for the province of West Nusa Tenggara, which has recently received very high attention due to the construction of the international MotoGP circuit. The construction of the MotoGP circuit has become an attraction for domestic and foreign tourists and has increased the number of tourists. The increase in tourism activity has negatively impacted the Mandalika SEZ's coastal waters, such as a decrease in water quality, including the water of Siwak Bay. Water quality monitoring can be done by using phytoplankton as a bioindicator. The study of phytoplankton species diversity as a bioindicator of water quality has never been carried out in the Siwak Bay waters. This research was conducted to analyze the status of Siwak Bay waters based on the phytoplankton diversity index. Samplings were carried out based on a purposive sampling method. This research was conducted for three months, from March to June 2023. The study found seven classes, 59 genera, and 127 phytoplankton species. The abundance of phytoplankton in Siwak Bay was 1025,185 ind/L. The highest abundance was the genus of Trichodesmium. The species diversity index was 3,33. Based on the species diversity index, it can be said that the waters of Siwak Bay are not polluted.
Co-Authors Dining Aidil Candri Dining Aidil Candri Izma Paryantini Tisanianti Tisanianti