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All Journal Ilmu Perikanan Tropis Nusantara
Hamdhani Hamdhani
Universitas Mulawarman
Agriculture, Biological Sciences & Forestry

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Studi percobaan pembiakan zooplankton jenis Cladocera (Macrothrix sp) secara eksitu: Test Study of Culturing a Type of Zooplankton: Cladocera (Macrothrix sp) using Ex-situ Method Hamdhani Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 1 No. 1 (2022): Ilmu Perikanan Tropis Nusantara
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v1i1.410

Abstract

Zooplankton pays important role in food chain system within fresh water ecosystem. In the trophic level it acts as bridging energy from phytoplankton to fish juvenile. Meanwhile research on this plankton is considerably lacking. This study is aimed to test culturing cladocera in the laboratory. Cladocera and phytoplankton were collected from Lutan Lake-Palangkaraya and the transported to the laboratory. Three fish water tank were used to culture cladocera for 5-week testing. The results indicate that there was fluctuation in average number of individual during culturing period. However the trendlines show increase in average number of individual, this increase was relatively consistent with the increase in average number of phytoplankton. Two week culturing period was identified as the most optimal period for culturing cladocera.
Pengamatan terhadap pembiakan cladocera (Macrothrix sp.) dan phytoplankton secara eksitu: Observation of culturing cladocera (Macrothrix sp.) and phytoplankton under laboratory condition Hamdhani Hamdhani
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 1 No. 2 (2022): Ilmu Perikanan Tropis Nusantara
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jipt.v1i2.437

Abstract

Zooplankton plays important role in food chain system within fresh water ecosystem. In the trophic level it acts as bridging energy from phytoplankton to fish juvenile. Meanwhile research on this plankton is considerably lacking. This study is aimed to test culturing cladocera in the laboratory. Cladocera and phytoplankton were collected from Lutan Lake-Palangkaraya and the transported to the laboratory. Three fish water tank were used to culture cladocera for 5-week testing. The results indicate that there was a negative relationship between average numbers of cladocera dan phytoplankton during culturing period. Two-week culturing period was identified as the most optimal period for culturing cladocera under laboratory condition.
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; Musyiir Sharaha; Febby Nur Fadhilla; Gregorius Viky Harijono
Jurnal Ilmu Perikanan Tropis Nusantara (Nusantara Tropical Fisheries Science Journal) Vol. 2 No. 1 (2023): Ilmu Perikanan Tropis Nusantara
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Mulawarman

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.
Co-Authors Febby Nur Fadhilla Gregorius Viky Harijono Musyiir Sharaha