The collector of Oryzias sp embryo for ecotoxicological studies Khusnul Yaqin
Aquatic resources management study program, Department of Fisheries, Faculty of Marine Science and Fisheries, Universitas Hasanuddin.
Abstract
The genus Oryzias is well known as a model animal for biological, pharmaceutical, toxicology and ecotoxicology research. On Sulawesi Island, there are 17 species of the genus Oryzias. Not many studies in the field of ecotoxicology have used Oryzias animal models from Sulawesi. In addition to adult individuals, Oryzias embryos are also very good for use as animal models for ecotoxicological studies. One of the crucial issues in the use of Oryzias embryos in ecotoxicological research is how to obtain the required number of Oryzias embryos in the test. This paper will describe the results of research using a collector model (kakaban) as a substrate for the attachment of Oryzias eggs after fertilization. The results showed that vertical collectors were used more as a place to attach Oryzias eggs compared to kakaban which were placed at the bottom or those placed at the bottom of the aquarium without a collector. To provide embryos for ecotoxicological studies, it is preferable to keep Oryzias broodstock in an aquarium using an egg or embryo collector in a vertical position.
