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All Journal Jurnal Akuakultur Rawa Indonesia JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT
Sulistyawati Sulistyawati
Mulawarman University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Environmental Science Immunology & microbiology

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EFEK SUB LETHAL AMONIA AMBIEN TERHADAP HISTOPATOLOGIS IKAN NILA (Oreochromis niloticus) YANG DIPELIHARA DALAM SISTEM BIOFLOK Sumoharjo Sumoharjo; Sulistyawati Sulistyawati
Jurnal Akuakultur Rawa Indonesia Vol 8, No 1 (2020): JURNAL AKUAKULTUR RAWA INDONESIA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (867.731 KB) | DOI: 10.36706/jari.v8i1.11243

Abstract

The purpose of this research were to measure the increasing of unionized ammonia during start-up period of biofloc system for growing Nile Tilapia and to figure out its effect on histopathological changes. There was only one treatment that designed with three replication, which was 40 liters of water that contained eight fishes of each weighed 22.. The biofloc system was treated with C/N ration 12:1. Total Ammonia Nitrogen, pH and temperature were measured daily as long as 14 days. the tissue of gill, liver and kidney were cut off at the end of the experiment for histopathological examination. The result of the experiment showed that the peak of unionized ammonia concentration achieved 0.34±0.05 mg/l at 10th day. Then, decreased rapidly to 0.003±0.0009 mg/l at 14th day. The gill, liver, and kidney had regressive changes as physiologic sub lethal response of unionized ammonia expose. Keywords : Biofloc, unionized ammonia, Nile Tilapia, histopatholocal
Heavy Metals Contents and Histopathological Analysis of Some Organs of Fish Obtained from Payau River, Anggana, Kutai Kartanegara, Indonesia Sulistyawati Hidayat; Iwan Suyatna; Ahmad Rafii; Ghitarina Ghitarina
Journal of Wetlands Environmental Management Vol 8, No 2 (2020): July - December
Publisher : Center for Journal Management and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (836.371 KB) | DOI: 10.20527/jwem.v8i2.217

Abstract

The objectives of this study were to determine the heavy metals contents (Cd, Pb, Cu and Zn) in the body of some freshwater fish and to examine the histopathological changes of some organs.  The fish were obtained from Payau River located in Anggana, Kutai Kartanegara District, East Kalimantan, Indonesia.  There were four (4) species examined namely: Glass Fish (Chanda sp), Croaker (Micropogenias undulatus), Lais (Kryptopterus cryptopterus), and spotted catfish (Arius maculatus).  Lead (Pb), Cadmium (Cd), Copper (Cu), and Zinc (Zn) were being analysed in the gills, livers, and the muscles of the fish.  The results showed that Pb and Cd were still low and fulfilled the the quality standard based on Indonesian National Standards Agency (INSA, 2009) and Directorate of Drug and Food Control No. 03725/B/SK/VII/89.  Cadmium concentration in the fish organ was < 0.003 mg/kg (Max. limit of Quality standard is 0.1 mg/kg) and Pb concentration was <0.002 mg/kg (Quality standard is 0.3 mg/kg).  Yet, Cu and Zn concentrations were exceeded the Quality standard as the levels were 2.63-2.93 mg/kg and 60.23 -65.55 mg/kg., respectively.  Based on Histopathological analysis of the gills, livers and muscles, the fish experienced edema, hyperplasia, vacuolar degenerative, necrosis and hemorrhagic ..
Co-Authors Ahmad Rafii Ghitarina Iwan - Suyatna Sumoharjo, Sumoharjo