Short Time Effect of Cadmium on Juveniles and Adults of Java Medaka (Oryzias javanicus) Fish as a Bioindicator for Ecotoxicological Studies
Daryoush Khodadoust 1, Ahmad Ismail 1, Syaizwan Zahmir Zulkifli 1*, Farhad Hoseini Tayefeh2
1 Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
2 Faculty of Forestry, Universiti Putra Malaysia (UPM), 43400, Serdang, Selangor, Malaysia
Corresponding author: firstname.lastname@example.org
Abstract: Acute toxicity of cadmium (Cd) on Java medaka (Orizyas javanicus) fish was studied. To obtain the results, the experiments were carried out in 3-liter aquariums (15-20 fish for each aquarium) with static condition based on O.E.C.D method with 5 treatments, and 1 blank in two repetitions. During the experiment, waterphysico-chemical parameters were pH = 7.7 to 7.9, salinity = 19.3 to 19.7 ppt, temperature = 29.1 to 30.8˚C and conductivity = 13.54 to 13.94 mS/m. On the basis of obtained results, the LC50-96 h for Cd were determined6.02 (5.83 to 6.21) mg/L for juveniles and 6.63 (6.31 to 6.95) mg/L for adults, respectively. Also, the MAC (maximum allowable concentration) values for Cd on Orizyas javanicus juveniles and adults were determined at0.60 mg/l for juveniles and 0.63 mg/l for adults. These results will be helpful for future ecotoxicology studies based on heavy metals pollution in estuary areas.
[Khodadoust D., Ismail A., Zulkifli S. Z. Short Time Effect of Cadmium on Juveniles and Adults of Java Medaka (Oryzias javanicus) Fish as a Bioindicator Ecotoxicological Studies. Life Sci J 2013;10(1):1857-1861] (ISSN:1097-8135). http://www.lifesciencesite.com.Key words: Cadmium, Java medaka fish, LC50, MAC, Ecotoxicology, Estuary.