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Firsty Rahmatia
Departemen Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor
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Journal : JURNAL ILMIAH SATYA NEGARA INDONESIA

 1 
RAINBOW FISH COLOR QUALITY WITH SPIRULINA SUPPLEMENTATION IN FEED Rahmatia, Firsty; Nainggolan, Armen
Jurnal Ilmiah Universitas Satya Negara Indonesia Vol. 3 No. 2 (2025): May-October 2025
Publisher : Lembaga Penelitian, Publikasi, & Pengabdian kepada Masyarakat, Universitas Satya Negara Indonesia (LP3M-USNI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59408/jisni.v2i2.6

Abstract

Rainbowfish originate from Sulawesi and Papua. These rainbow-like colors fish are becoming increasingly popular. Another unique characteristic of this species is its non-aggressive nature, allowing it to be kept with other fish species in the same aquarium. Enhancing the economic value of rainbowfish can be achieved by improving their color quality to make them more visually appealing. One method to achieve uniform bright coloration is through the supplementation of natural pigment sources in their feed. One such natural pigment source is Spirulina platensis, which contains high levels of beta-carotene. Based on this premise, research is necessary to determine the optimal dosage of S. platensis supplementation for enhancing the color quality of rainbowfish, thereby increasing their aesthetic appeal and market value. The tested S. platensis dosages were 0% (Control), 1%, 2%, and 3%, with four replications. The fish were maintained for five weeks, with sampling conducted weekly. Observed parameters included length growth, absolute biomass growth, and color measurement using M-TCF. The results indicated that, statistically, S. platensis supplementation at doses of 1%–3% had no significant effect on the growth of Boesemani Rainbowfish. However, in terms of color enhancement, the best treatment was observed in Treatment B (2% S. platensis dosage).
PHYTOPLANKTON COMPOSITION AT CILIWUNG RIVER POST IMPLEMENTATION OF NORMALIZATION PROGRAM Rahmatia, Firsty; Sirait, Marlenny
Jurnal Ilmiah Universitas Satya Negara Indonesia Vol. 3 No. 1 (2024): November 2024 - April 2025
Publisher : Lembaga Penelitian, Publikasi, & Pengabdian kepada Masyarakat, Universitas Satya Negara Indonesia (LP3M-USNI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59408/jisni.v2i1.22

Abstract

The water quality in Ciliwung River gives a considerable influence on the survival and growth of biota in the river. The quality of the Ciliwung River is determined by the physical, chemical, and biological properties of the waters of the Ciliwung River. Water quality affects the amount, composition, species diversity, production and physiological state of aquatic organisms such as phytoplankton. Phytoplankton is one of the biological indicators that can be used to evaluate water quality. With the implementation of the river normalization program by the Provincial Government of DKI Jakarta, it is necessary to conduct research on the composition of phytoplankton in order to evaluate the quality of the waters. Research is conducted along the Ciliwung River, from upstream to downstream. The sampling location consists of 9 (Nine) stations, namely; Gadog Bridge, Gadog, katulampa, Kelapa Dua, Kalibata, Kampung Melayu, Pejompongan, K.H. Mas Mansyur, and Gong Bay. The results showed that the composition of phytoplankton in the waters of Ciliwung River Year 2017 increased compared to 2008 by Fachrul et al. The compositions were 5 divisions consisting of 45 species, 20 species of Bacillariophyceae, 15 types of Chlorophyceae, 6 types of Cyanophyceae, 3 types Euglenophyceae, and 1 type of Dinophyceae. The types of phytoplankton that dominate the waters of Ciliwung are Scenedesmus sp., Nitzschia sp., Oscillatoria sp., Spirulina sp., And Cyclotella sp.
Co-Authors Ahmed, Yasser Armen Nainggolan Indris, Fahmi Lestira Dhewantara, Yudha Marlenny Sirait, Marlenny Mia Setiawati Nur Bambang Priyo Utomo Nurizki, Marlina Pattulloh, Pattulloh Putra, Syadat Rasyid, Raihan Riena F. Telussa