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Journal : Jurnal Cakrawala Ilmiah

EFEKTIVITAS PEMBERIAN ASTAXANTHIN PADA Daphnia sp. DENGAN DOSIS BERBEDA TERHADAP KECERAHAN WARNA DAN PERTUMBUHAN BENIH IKAN MAS KOKI (Carassius sp) Sarma Octaviani Nainggolan; Siti Komariyah; Andika Putriningtias
Jurnal Cakrawala Ilmiah Vol. 3 No. 9: Mei 2024
Publisher : Bajang Institute

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Abstract

Goldfish (Carrassius sp.) is a type of ornamental fish with interesting color variations. Color is one of the reasons ornamental fish are in demand by the public, so farmers need to improve the quality of color in ornamental fish. To increase the brightness of color in goldfish fry, it is necessary to add carotenoids to the feed. The aim of this research was to determine the best dose of astaxanthin to increase color brightness in goldfish (Carassius sp.) fry. The method used in this research was RAL with 4 treatments and 3 repetitions, namely P1 (0.00 g/30 ml), P2 (0.20 g/30 ml), P3 (0.30 g/30 ml), P4 ( 0.50 g/30 ml). The parameters observed during the research were the brightness of the fish's color, absolute length growth, absolute weight growth, survival rate and water quality. The results showed that giving astaxanthin to Daphnia sp. had a significant effect on increasing color brightness, but did not have a significant effect on growth in length, weight and survival rate of goldfish (Carassius sp.) fry
HUBUNGAN KONDISI LINGKUNGAN TERHADAP KEANEKARAGAMAN JENIS IKAN DI SUNGAI LAWE ALAS KECAMATAN DARUL HASANAH KABUPATEN ACEH TENGGARA Sipa Auliana; Andika Putriningtias; Teuku Fadlon Haser
Jurnal Cakrawala Ilmiah Vol. 3 No. 12: Agustus 2024
Publisher : Bajang Institute

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Abstract

The Lawe Alas River is one of the longest rivers in Sumatra. This river has its headwaters in Southeast Aceh Regency and empties into Aceh Singkil Regency, has characteristics of fast currents with sandy and rocky bottom substrates. The diversity and distribution of fish are influenced by several aquatic environmental factors which can be used as bioindicators of water quality. The aim of this research is to analyze the level of fish diversity and analyze the influence of environmental conditions on the diversity of fish species in the Lawe Alas River, Darul Hasanah District, Southeast Aceh Regency. The fish species found from the three stations are tilapia fish (Oreochromis mossambicus), tawes fish (Barbodes gonionotus), broomstick fish (Hypostosmus sp), Jurung fish (Tor tambroides), runny fish (Nemacheilus chrysolaimus). The diversity index at station II is 1.58%, the uniformity index at station II is 1.0 and the dominance index at station II is 0.25. Based on the results obtained in the field, the diversity index, uniformity index and dominance index were highest at station II
Co-Authors Adillah, Mutiara Anggun Fathin Agus Putra AS Alham, Fiddini Anggita, Rina Anis Nugrahawati Anzarwati, Tika Azmi, Fauziah Batubara, Paisal Cut Mulyani Cut Mulyani Dari, Try Oelan darsiani, Darsiani Eti Rutmawati Sihite Fakhrur Razi Farlizah, Thasya Farlizah, Thasya Thasya Febri, Suri Purnama Fitri Suxes Sihite Hanisah Hanisah Hanisah, Hanisah Harahap, Antoni Haser, Teuku Fadlon Hasibuan, Destriana Helmy Akbar Helmy Akbar Ika Rezvani Aprita Iskandar, Andri Islama, Dini Isma, Muhammad Fauzan Iwan Hasri Kamal, Sauki Komariyah, Siti Komariyah, Sitti Ladio, Mika Malik, Mhd Mandalica Simanjuntak Manullang, Irma Warny Lamberta Manurung, Yeremias Person Maulana, Febri Mudaza, Iqbal Muh. Saleh Nurdin Muhammad Fauzan Isma Muhammad Hatta Muhammad Hidayat Muhammad Jamil Muhammad JAMIL Nazlia, Suraiya Nizar, Khairul Pebry Aisyah Putri Batubara Purba, Mustika Rachmawati Rusydi, Rachmawati Ramadani, Tariska Putri Ramadhan, Muhammad Rizqy Ramadhana, Muhammad Furqan Rani, Huna Selfia Retno Hartati Riska Dara Delima Sarumaha Rosmaiti Rosmaiti Rosmaiti, Rosmaiti Rudhi Pribadi Samsul Bahri Saragih, M.Sc, Faoeza Hafiz Sari, Nurdian Novita Sarma Octaviani Nainggolan Siagian, Dame Intan Sihite, Fitri Suxes Silvia Anzhita Silvia Anzitha Simanjuntak, Mandalica Sinaga, Lisna Sinaga, Sorbakti Sipa Auliana Siti Komariyah Siti Komariyah Sondang Rosnaria Purba Sorbakti Sinaga Suri Purnama Febri Syahrial Syahrial SYAHRIAL SYAHRIAL Syamsul Bahri Syamsul Bahri Tanjung, Andini Fadila Teuku Fadlon Haser Teuku Fadlon Haser Teuku Kusnafizal Teuku Muhammad Faisal Teuku Muhammad Faisal Teuku Muhammad Faisal Teuku Muhammad Faisal, Teuku Muhammad Thursina Mahyuddin Wati, Ema Yusnaini Anjani Siregar