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Journal : Omni-Akuatika

Organic Feed Enrichment Effects toward Growth Performance and Egg Production of Oithona similis Diana Chilmawati; Johannes Hutabarat; Sutrisno Anggoro; Suminto Suminto
Journal Omni-Akuatika Vol 16, No 3 (2020): Omni-Akuatika Special Issue 3rd Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2020.16.3.852

Abstract

The optimum condition of culture media and feed diets which fit the necessities of Oithona similis life (ecophysiological) is very important for it to grow and develop in its maximum. The enrichment of O. similis feed can be done by adding fermented organic feed. Providing organic feed with optimum protein content is necessary to support the growth process and reproduction of O. similis. Osmoregulation process of water organism which is influenced by media salinity is related to bioenergetics process as the effort to use feed energy for the growth. This research aimed to examine the effect of different organic feed protein content and to determine the optimum point which may result in the best growth and egg production of O. similis in the optimum condition of culture media. The study used an experimental method with a completely random design consisting of 4 treatments and 4 repetitions each, i.e. O. similis culture with A. 25%; B. 30%; C. 35%; and D. 40% organic feed protein content. The results showed that the difference of protein content in organic feed affects the growth and production of O. similis eggs. The optimum point of protein content in the fermented organic feed is on protein content B, i.e. 30%, which resulted in the best growth performance (70.44 ± 0.43 ind.mL-1 total density, 0.213 ± 0.001.day-1 population growth rate, and 27.38 ± 0.48 eggs.ind-1 egg production. (ttujuan dan pembahasan harus past tense), Tujuan di abstrak minimal harus menggambarkan atau sama denga tujuan di pendahuluan)Keywords: enrichment, Oithona similis, organic feed, protein, reproduction
Analisis Perubahan Lahan Kawasan Laguna Segara Anakan Selama Periode Waktu (1978 – 2016) Menggunakan Satelit Landsat Multitemporal Rose Dewi; Muhammad Zainuri; Sutrisno Anggoro; Tjahjo Winanto
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (636.104 KB) | DOI: 10.20884/1.oa.2016.12.3.209

Abstract

Segara Anakan Lagoon (SAL) has the unique characteristics of the region with the high of natural resources biodiversity. The region of SAL is influences by natural factor (estuarine freshwater stream of Citanduy watershed and the high of sedimentation rate) and the variety of anthropogenic factor. The factors lead to the changes in land, because it triggers the decrease of the lagoon water bodies. The aim of the research is to know the changes of the region land use in SAL and its impact. Temporally spatial approach is required to evauate the influence of both factors. Spatial approach is done by using remote sensing method with Geographic Information System, with Multi-Temporal Landsat imagery data processing (the year of 1978, 1994, 2001, 2009, 2011 and 2016). It uses land classification technique (Supervised Classification). It is processed with ER Mapper 7.0 software and displayed with Arc GIS (Jpeg). The analysis result shows that there is 2.703,7 ha extensive shrinkage lagoon in 38 year (1978 - 2016) or there is 71.15 ha per year in land area increase in the last 38 years. It is supported with 4.741,36 ha residential land and 17.962,64 ha field land that cause the degredation of SAL region. The increase of SAL citizenary amount triggers the land conversion for the interest of the various anthropogenic activities. It is supported by the threat of natural factors of high sedimentation level that cause higher SAL pressure. In conclusion, it is needed evaluation and management strategies to overcome the changes of SAL land area by the local government and related parties.
Co-Authors - Djuwito - Subiyanto . Supriharyono A'in, Churun A. Hadian Pratama Hamzah Adelia Khrisna Putri agung Suryanto Agus Hartoko Alifhannizar Marwadi Alva W, Silvia Silvia Grandies Anastia Afika Riza Andi Prasetiawan, Andi Anhar Solichin Anita Karolina Arif Budi Wibowo Arum Siwiendrayanti Aryansyah, Akbar Ayuningtyas Indrawati Azis Nur Bambang Aziz Nur Bambang Bambang Sulardiono Bambang Yulianto Boedi Hendrarto Delis, Putu Cinthia Dewi, Kartika Puspita Dian Wijayanto Diana Chilmawati Diana Chilmawati Diana Rachmawati Djoko Suprapto Djuwito Djuwito Dwi Mulyasih Dwi Purwantoro Sasongko Dwi Setyoningsih, Dwi Effendy, Irwan Junaedi Erry Wiryani Estherina Magdalena, Estherina Faizin, Khabib Ahsanul Farah Nabila Noersativa Fatima, Shintia Nurul Frida Purwanti Gina Saptiani Gina Saptiani Hadi Endrawati Haeruddin Haeruddin HARIADI SISWANTORO Haris, Rangga Bayu Kusuma Harisya Diah Suprobo Hartati Dwi Yuningsih Hartuti Purnaweni Henna Rya Abdurachim Herman Yulianto Hermin Pancasakti Kusumaningrum Herry Boesono Husna El Iksiroh I Nyoman Dodik Prasetia I. Kumalasari Ibrahim, Putri Sapira Imai Hideyuki Indah Saraswati Irwani Irwani Isna Yunita Rahmawati Ita Widowati Jafron Wasiq Hidayat Johanes Hutabarat Johanes Hutabarat Johannes Hutabarat Jusup Suprijanto Kurniawan, Wanwan Lachmuddin Sya’rani Lachmuddin Sya’rani Lustianto, Anggi Febri Ma'in, M Minawati, Iis Mostafa Imhmed Ighwerb Muhammad Fadil Muttaqin, Muhammad Fadil Muhammad Zainuri Muhammad Zainuri Muliawati Handayani Mutiara Salsabiela Najib Najib Najib Najib Najib, Najib Niniek Widyorini Norma Afiati Noviana Indrayani Nurbambang, Azis Nurfuad, Ferdian Adam Nurjazuli Nurjazuli Oktavianto Eko Jati Prasetyo, Syarif Prijadi Soedarsono Pujiono Wahyu Purnomo Puryono, Sri Qadar Hasani Retno Hartati Reza Maulana Richa Rizki Budiasti Rose Dewi Rose Dewi Said Abdusysyahid Samsul Rizal Sansistya Dita Novian Santi, Yulia Saridu, Siti Aisyah Setia Budi Sasongko Siti Aisyah Siti Rudiyanti Slamet Budi Prayitno Sri Mulyani Subagiyo Subagiyo Sugiarti, Eka Suminto Suminto Suminto Suminto Supriharyono Supriharyono Supriharyono, . Supriyati, Siti Suradi Wijaya Saputra Suryanti Suryanti - Susanti, Renita Syarani, Lachmudin Temmy Temmy Titik Susilowati Titin Liana Febriyanti Tjahjo Winanto Tri Retnaningsih Soeprobowati Veithzal Rivai Zainal W. Nugroho Satrioajie Wahju Krisna Hidajat Widianingsih Widianingsih Wirasatrio, Fauzima Dwi Yalindua, Fione Yukita Yuliani, Tina Anggun Yunita Asrofania Rahmawati