Melki Melki
Jurusan Ilmu Kelautan, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sriwijaya

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Keragaman Fitoplankton dan Potensi Harmfull Algal Blooms (HABs) di Perairan Sungai Musi Bagian Hilir Provinsi Sumatera Selatan Riris Aryawati; Melki Melki; Inda Azhara; Tengku Zia Ulqodry; Muhammad Hendri
Buletin Oseanografi Marina Vol 12, No 1 (2023): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v12i1.47843

Abstract

Sungai Musi merupakan sungai terpanjang di Pulau Sumatera yang banyak dimanfaatkan masyarakat sebagai jalur transportasi dan berbagai aktivitas lainnya. Sungai Musi merupakan habitat fitoplankton yang dapat menjadi indikator kualitas perairan. Penelitian ini bertujuan mengetahui kelimpahan, keragaman, keseragaman, dominansi, dan  menganalisis potensi HABs fitoplankton di Perairan Sungai Musi bagian hilir. Hasil pengamatan pada 10 stasiun, ditemukan 6 genus fitoplankton dari kelas Bacillariophyceae (Bacillaria, Coscinodiscus, Ghemponema, Navicula, Skeletonema, Strepthotecha), 6 genus dari kelas Chlorophyceae (Chlorella, Hydrodiction, Micrasterias, Pediastrum, Platydorina, Spirogyra), 1 genus dari kelas Cyanophyceae (Oscillatoria). Hasil analisis diperoleh kelimpahan sebesar 10-483 sel/L, indeks keanekaragaman (H’) 0,89-1,57, indeks keseragaman (E) 0,75-0,99, dan indeks dominansi (C) 0,25-0,46 dengan genus fitoplankton di kelimpahan tertinggi Spirogyra dan terendah Bacillaria. Hasil pengamatan menunjukkan parameter fisika-kimia termasuk kategori baik untuk pertumbuhan fitoplankton dan ditemukan beberapa jenis fitoplankton yang berpotensi HABs (Coscinodiscus, Skeletonema, Oscillatoria).    The Musi River, the longest river on the island of Sumatra, is widely used by the community as a transportation route and for various other activities. Therefore, the Musi River is a habitat for phytoplankton and can be a bioindicator of water quality. This study aims to determine the success of analysing the abundance, diversity, uniformity, dominance and potential of HABs phytoplankton downstream of the Musi River. Observations of 10 sampling stations found six genera from the class Bacillariophyceae (Bacillaria, Coscinodiscus, Ghemponema, Navicula, Skeletonema, Streptotheca), six genera from the class Chlorophyceae (Chlorella, Hydrodiction, Micrasterias, Pediastrum, Platydorina, Spirogyra), one genus class Cyanophyceae (Oscillatoria). The results of the analysis obtained an abundance of 18-483 cells/L, the diversity index (H') 0.89-1.57, uniformity index (E) 0.75-0.99, and dominance index (C) 0.25-0.46 with the phytoplankton genus in the highest abundance of Spirogyra and the lowest Bacillariophyceae. Furthermore, the results of the observations show that the physicochemical parameters are in a suitable category for phytoplankton growth and found several types of phytoplankton that have the potential for HABs (Coscinodiscus, Skeletonema, Oscillatoria).
Pengaruh Metode Filtrasi Terhadap Peningkatan Kualitas Fisik Air Muara Sungsang, Banyuasin Jeni Meiyerani; Melki Melki; Hary Widjajanti; Rozirwan Rozirwan; Riris Aryawati
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5680

Abstract

Water quality in the form of turbidity, colour, odour, taste and suspended residue are significant issues in Sungsang Banyuasin. The filter utilizes a filtration method to remove solid particles and contaminants. The research site consists of Sungsang, Sungsang II, and Sungsang III areas. The purpose of this study was to determine the water quality in the form of colour, taste, odour, turbidity, suspended residue, and salinity, as well as the ability of the filter to overcome water quality. Filtration consists of sedimentation, filter membranes, and filter media consisting of zeolite, silica, anthracite, ferrolite, activated carbon, and bioring. Water quality measurements used organoleptic to determine odour and taste, handrefractometer to measure salinity, direct reading to measure suspended residue, and spectrophotometry to measure colour and turbidity. The breech water was odourless and tasteless, and the suspended residue value ranged from 17-19 mg/L below the quality standard of 50 mg/L. Colour and turbidity values are greater than 50 on their respective scales and salinity values range from 11-13 ppt. The filtration process successfully reduced the values of suspended residue, colour, turbidity, and salinity.