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All Journal Ilmu Perikanan Tropis Nusantara Al-'Adad: Jurnal Tadris Matematika
Hamdhani, Hamdhani
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Agriculture, Biological Sciences & Forestry Mathematics

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Aplikasi perhitungan tingkat kesuburan perairan dengan Metode Carlson pada perairan urban Danau Polder Air Hitam di Kota Samarinda: Application of Carlson trophic state index on trophic state determination of urban Polder Air Hitam Lake in Samarinda City Hamdhani, Hamdhani; Sharaha , Musyiir; Fadhilla , Febby Nur; Harijono , Gregorius Viky
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.v2i1.494

Abstract

In general, various human activities cause eutrophication in water bodies. Lentic system is vulnerable to discharge of pollutants from surrounding areas. Similar scenarios most likely occur in Polder Air Hitam Lake in Samarinda City. The goal of this study was to investigate the trophic status of this urban lake using modified Carlson index with the indicator of chlorophyll-a and total phosphate/ Spatially the variation of chlorophyll-a was 32.6 – 97.3 µg/L, and total phosphate was 0,141 – 0,225 mg/L. The calculation of Carlson trophic state index resulted 73.78, which indicated hypereutrophic status. This condition was not ideal for a healthy lentic system. In the future a related treatment is required to optimize multiple functions of this urban lake.
Diversity of aquatic insects in water hyacinth (Eichhornia crassipes) leaf litter in aquaculture experiment ponds Diana, Salzabila; Hamdhani, Hamdhani; Ristiana Eryati
Nusantara Tropical Fisheries Science (Ilmu Perikanan Tropis Nusantara) Vol. 3 No. 1 (2024): Nusantara Tropical Fisheries Science
Publisher : Faculty of Fisheries and Marine Science, Mulawarman University

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Abstract

Aquatic insects are known as insects that spend part of their lives in water. Water insects are very important for ecological systems because they are often used as indicators of pollution levels in waters. The purpose of this study was to determine the types of aquatic insects and how the level of diversity, evenness and dominance of aquatic insects in the Aquaculture Experimental Pond. Five orders and seven families of aquatic insects were found in water hyacinth leaf litter. The results of the calculation of the diversity index in water hyacinth leaf litter are in the low and medium categories, for the evenness index in the low category and for the dominance index in the low to high category.
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.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS ISPRING SUITE PADA MATERI BANGUN RUANG SISI DATAR Hamdhani, Hamdhani; Suriyana, Suriyana; Fitriana, Ika Sari
Bahasa Indonesia Vol 3 No 2 (2024)
Publisher : IAIN Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24260/add.v3i2.3512

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis ispring suite pada materi bangun ruang sisi datar ditinjau dari aspek kelayakan, aspek kepraktisan dan keefektifan. Penelitian menggunakan metode R&D yaitu (Research and Development), dan menggunakan model desain pembelajaran ADDIE (Analysis, Desaign, Development, Implementation dan Evaluation). Media yang dikembangkan menggunakan software ispring suite, yaitu perangkat lunak yang digunakan untuk menciptakan media pembelajaran interaktif berupa penyajian materi, video materi, latihan soal, dan quiz. Subjek uji coba pada penelitian ini menggunakan uji coba perorangan dan kelompok kecil. Uji coba perorangan yaitu 3 peserta didik kelas VIII Madrasah Tsanawiyah dan untuk uji coba kelompok kecil yaitu 13 peserta didik kelas VIII Madrasah Tsanawiyah. Hasil penelitian ini menurut penilaian ahli media dan ahli materi menunjukkan bahwa media pembelajaran berbasis ispring suite memperoleh kriteria layak digunakan dengan skor rata-rata 4,1. Adapun hasil uji coba yang dilakukan kepada uji coba perorangan dan uji coba kelompok kecil menunjukkan bahwa media pembelajaran berbasis ispring suite memperoleh kriteria sangat praktis dengan skor rata-rata 4,3. Media pembelajaran berbasis ispring suite juga memperoleh kriteria sangat efektif dengan skor rata-rata N-gain 0,87 berdasarkan hasil tes uji coba perorangan dan hasil tes uji coba kelompok kecil.
Co-Authors Diana, Salzabila Fadhilla , Febby Nur Fitriana, Ika Sari Harijono , Gregorius Viky Ristiana Eryati Saputri, Dea Sharaha , Musyiir Suriyana Suriyana Suryana, Irma