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Ghitarina Ghitarina
Staf Pengajar Jurusan Manajemen Sumberdaya Perairan, Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Energy Physics

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PRODUKSI DAN KONSUMSI OKSIGEN ZONA ATAS DAN BAWAH SECCHI DISK DI WADUK BENANGA SAMARINDA Anggara Sakti Pribadi; Muhammad R. Syahrir; Ghitarina Ghitarina
Jurnal Tropical Aquatic Sciences Vol. 1 No. 2 (2022): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/tas.v1i2.634

Abstract

The high sedimentation and erosion in reservoirs in Indonesia have been the main factors causing the decrease in reservoir capacity. High sedimentation is the main factor causing the decline in the carrying capacity of the reservoir ecosystem. This research was conducted to determine the production of dissolved oxygen and respiration in the upper and lower zones of the sechi disk in the Benanga Reservoir. As data on dissolved oxygen production and respiration in the upper and lower zones of the secchi disk. This study uses a dark and light bottle storage method to see the difference between the upper and lower zones of the waters so as to get the production and oxygen consumption. Dissolved oxygen production and consumption studies (dark and light bottles) used a 4-hour incubation. The results show that the dissolved oxygen consumption in the upper zone is 2.07 mg/L and the lower zone is 1.90 mg/L, gross primary productivity (GPP) in the upper zone is 4.95 mg/L and the lower zone is 4.32 mg/L, and the net primary productivity (NPP) is in the upper zone. 2.88 mg/L and lower zone 2.42 mg/L.
ANALISIS KANDUNGAN LOGAM BERAT (Pb, Cd, DAN Cu) PADA LAMUN (Enhalus acoroides DAN Thalassia Hemprichii) SEBAGAI BIOINDIKATOR PENCEMARAN DI TELUK BALIKPAPAN, KOTA BALIKAPAPAN, KALIMANTAN TIMUR Mahesa Islamy Eka Juniar; Jailani Jailani; Ghitarina Ghitarina
Jurnal Tropical Aquatic Sciences Vol. 1 No. 2 (2022): Jurnal Tropical Aquatic Sciences
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/tas.v1i2.649

Abstract

There are many activities in and around Balikpapan Bay which is expected to provide input of organic matter and waste containing heavy metals that may accumulate in seagrass. Seagrass is a material that can be used for analysis of heavy metal content and can accumulate these contaminants. This study aimed to analyze the levels of heavy metals (Pb, Cd, and Cu) in seagrass (Enhalus acoroides and Thalassia hemprichii) in the waters of Balikpapan Bay. Seagrass samples were taken at two stations with three repetitions. The samples were then dry-destructed prior to heavy metal analysis. Analyses The results showed that the heavy metal content of Pb was higher at Station 2 (dominated by Thalassia hemprichii) in the stem, Cd was higher at Station 1 (dominated by Enhalus acoroides) in the stem, and Cu was found higher on the leaf. Of the Seagrass at Station 2. The levels of Pb in the seagrass have exceeded the quality standard stipulated in KEPMEN No. 51 of 2004.
Co-Authors Akhmad Rafii Anggara Sakti Pribadi Dwi Nurdiana Jailani Jailani Mahesa Islamy Eka Juniar Mohammad Mustakim Muhammad MF Yasser Muhammad Syahrir R Ristiana Eryati Syarifah Salsadilla Tamara Haliza Wulandari Wulandari