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All Journal BULETIN OSEANOGRAFI MARINA Journal of Marine Research BIOPROSPEK Hearty : Jurnal Kesehatan Masyarakat Jurnal Perikanan Ilmu Perikanan Tropis Nusantara Jurnal Pengabdian Pada Masyarakat
Suryana, Irma
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Journal : Ilmu Perikanan Tropis Nusantara

 1 
Kandungan nitrogen saat pasang dan surut di Sungai Mahakam Kota Samarinda: Nitrogen content during high and low tides in the Mahakam River, Samarinda City Kania Karnelia; Ghitarina, Ghitarina; Suryana, Irma
Nusantara Tropical Fisheries Science (Ilmu Perikanan Tropis Nusantara) Vol. 2 No. 1 (2023): Ilmu Perikanan Tropis Nusantara
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v2i1.179

Abstract

This study aims to determine the levels of nitrogen compounds in the Mahakam river at high and low tide, and to compare it with the quality standard East Kalimantan Timur Regulation Number 02 0f 2011 concerning Water Quality Management and Water Pollution Control. The data obtained in the field and the results of the analysis in the laboratory are displayed in the form of tables and graphs. The data is presented based on a descriptive picture to get conclusions from the results of the study, with an independent sample t-test and compared the average between the two cases. The levels of Ammonia, Nitrite and Nitrate at high tide were significantly lower than at low tide. lower than at low tide. Ammonia levels at high tide ranged from 0.382- 0.424 mg/L, and have exceeded the quality standard threshold of regional Regulation of East Kalimantan Province Number 02 of 2011. Nitrite levels at high tide range from 0.027- 0.068 mg/L and ar low tide 0.04 - 0.068 mg/L, and still meet the quality standards of East Kalimantan Province Regulation Number 02 0f 2011.Nitrate levels at high tide range from 0.89 – 1.20 mg/L and at low tide 1.00 – 1.20 mg/L, which still meets the quality standards of East Kalimantan Province Regualation No. 01 of 2011. The levels of Ammonia, Nitrite and Nitrate at high and low tide were not significantly different.
Microplastic in Water and Sediment from the Middle Segment of Karang Mumus River, Samarinda City, East Kalimantan Saputri, Dea; Hamdhani, Hamdhani; Suryana, Irma
Nusantara Tropical Fisheries Science (Ilmu Perikanan Tropis Nusantara) Vol. 2 No. 2 (2023): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v2i2.679

Abstract

The increasing use of plastic causes an increase in plastic waste in the environment, especially waters. Plastic waste that enters the waters will then be degraded into polymers less than 5 mm called as microplastics.  The purpose of this study was to determine the content of microplastics in water and sediment and the relationship between microplastics in water and sediment in the Karang Mumus River in Samarinda City. Sampling was carried out at 3 stations in the Karang Mumus River then sample analysis was carried out at the Water Quality Laboratory of Mulawarman University. Based on the results of the research obtained, the types of microplastics found are fiber, fragments, films and microbeads. The most type of microplastic was found is film. The mean concentration of microplastic in the water was 3,04 particles/L and in the sediment was 1322,22 particles/Kg.
Co-Authors Achmad Fauzi Adnan Adnan Agathajani, Brigitha Anjeli Ahmad Ahmad Andini, Ardita Dwisepti Arwadi, Tri Bulan, Dewi Embong Elisar, Elisar Eryati, Ristiana Firman , Firman Ghitarina Ghitarina, Ghitarina Hamdhani, Hamdhani Irwan Ramadhan Ritonga Jani, Brigitha Anjely Agatha Kania Karnelia Kusumaningrum, Widya Novia, Rani Nurfadilah Nurfadilah Paputungan, Mohammad Sumiran Saputri, Dea Sigalingging, Andi Suyatna , Iwan