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Eva Utami

Jurusan Ilmu Kelautan, Fakultas Pertanian Perikanan dan Biologi, Universitas Bangka Belitung

Author-ID : 3972727

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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STRUKTUR KOMUNITAS IKAN AIR TAWAR YANG DITEMUKAN DI SUNGAI LUBUK BAKONG TUA TUNU PANGKALPINANG Rama Supanji; Wahyu Adi; Eva Utami
Akuatik: Jurnal Sumberdaya Perairan Vol 12 No 2 (2018): Akuatik: Jurnal Sumberdaya Perairan
Publisher : Department of Aquatic Resources Management, Faculty of Agriculture, Fisheries, and Biology, University of Bangka Belitung

The Lubuk Bakong’s River is located in Tua Tunu Village, Pangkalpinang and generally used as agricultural land and livestock. The purpose of this research is to analyze the community structure and the relationship of aquatic parameters to the diversity of fish in the Lubuk Bakong River. The benefit of this research is to complete data about the structure of the fish community in the Lubuk Bakong River. This research was conducted in March 2018 at the Lubuk Bakong River, Tua Tunu Village. Sample identification was carried out at the Fisheries Laboratory, FPBB. The method used is purposive sampling method and Principal Component Analysis. The fishes caught are Kemuring (Puntius lineatus), Tanah (Puntius binotatus), Palm (Osteochilus spilurus), Seluang (Rasbora cepholotaenia), Ordinary septic (Trichogaster trichopterus), Belida (Chitala sp), Betok (Anabas testudineus), Kelincah (Belontia hasselti), Kepatung (Pristolepis grootii), Baung (Mystus nemurus), Gabus (Channa striata), Kiung (Channa lucius), Sepat api (Trichogaster pectoralis) and Chitala sp. The results of the analysis related characteristics of environmental parameters on the diversity of fish species show the magnitude of the effect of the parameters Depth, Current velocity, and Nitrate at station I, station II shows the magnitude of the influence of temperature, pH, DO, Brightness, and Nitrate parameters and station III is more influenced by Phosphate factors

STRUKTUR KOMUNITAS MAKROZOOBENTOS DI SUNGAI PAKIL KABUPATEN BANGKA Desinawati Desinawati; Wahyu Adi; Eva Utami
Akuatik: Jurnal Sumberdaya Perairan Vol 12 No 2 (2018): Akuatik: Jurnal Sumberdaya Perairan
Publisher : Department of Aquatic Resources Management, Faculty of Agriculture, Fisheries, and Biology, University of Bangka Belitung

Pakil River which is located in Paya Benua Village, West Mendo District, Bangka Regency. This river has an impact from mining activities which then affect the macrozoobenthos community. The purpose of this study was to determine the macrozoobenthic community structure in the Pakil River and determine the effect of water quality on macrozoobenthos in the Pakil River. The study was conducted in April 2018 in the waters of the Pakil River, Paya Benua Village, West Mendo District, Bangka Regency. The macrozoobentos sample was taken purposively at 6 observation stations. The results showed that 4 species of macrozoobenthos. With a diversity index of 0.9195 in the category of low diversity, uniformity index of 0.663 was classified as stable and the dominance index of 0.4425 was in the medium category. The effect of TSS parameters and depth greatly affect the life of the macrozoobenthos, while the ones that have sufficient influence are the parameters of current velocity and DO, then those that have no effect are the parameters of pH, temperature and sand fraction.

Chlorophyll a Concentration from Phytoplankton in Ketawai, Bangka Tengah, Bangka Belitung Eva Utami
Journal of Tropical Marine Science Vol 1 No 1 (2018): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Fitoplankton mempunyai peranan yang sangat penting sebagai produsen di laut dan menggunakan klorofil untuk memerangkap energy cahaya yang dibutuhkan dalam proses fotosintesis. Proses ini berguna untuk memanen energy cahaya yang bersama air dan karbondioksida untuk menghasilkan oksigen dan karbohidrat, dengan kata lain proses ini untuk mengubah energy matahari menjadi energy kimia. Peran klorofil sangat penting untuk proses tersebut. Tujuan dari penelitian ini adalah untuk menganalisis konsentrasi klorofil a fitoplankton dan mengetahui factor fisika-kimia perairan. Penelitian ini dilakukan di perairan Pulau Ketawai, Bangka tengah pada bulan Maret 2017. Hasil penelitian memperlihatkan bahwa nilai konsentrasi klorofil pada masing-masing stasiun pengambilan sampel berbeda. Parameter lingkungan yang terukur masih dalam batas ideal untuk pertumbuhan fitoplankton. Phytoplankton has important role as a primary producer in oceans and use chlorophyll to trap light needed for photosynthesis (Matthews & Holde, 1996). This process which uses to harvested light energy together with water and carbon dioxide to produce oxygen and carbohydrates; as such, it converts solar energy into chemical energy. Chlorophyll is vital for photosynthesis as well, which help phytoplankton get energy from light. The aim of this study is to analyze chlorophyll a concentration and physicochemical water parameters. The research had been done on March 2017 in Ketawai Island, Bangka Tengah, Bangka Belitung. Result showed that value of chlorophyll a concentrations were different each site research which are Eastern coastal waters, Sothern coastal waters, Western coastal waters and Northern coastal waters were 4.128 mg/L, 0.19 mg/L, 0.15 mg/L, and 0.824 mg/L, respectively. The characteristic of water quality measured were found to be within the ideal range for phytoplankton.

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