Fluctuating Asymmetry of Red Tilapia (Oreochromis niloticus) in Genteng Fish Hatchery Center, Banyuwangi
Abstract
Fluctuating asymmetry of bilateral meristic characteristic is one of the simple methods that can be used to determine the stability of an individual fish development. This study aims to provide quantitative information about the level of asymmetry red tilapia (Oreochromis niloticus) in Genteng Fish Hatchery Center through bilateral meristic characteristic observation. The number of fish used in this study is 100 fish which have a measurement of 5-7 cm. Bilateral meristic characteristic observed is the number of soft pectoral fins, the number of soft pelvic fins, and the number of scales on the lateral line. The results show that the highest value of the fluctuating asymmetry magnitude (FAm) and fluctuating asymmetry number (FAn) are obtained at the number of scales on the lateral line those are 3.71 and 0.86. Furthermore, on soft pectoral fins, the FAm value obtained is 1.29 and the FAn value is 0.58. Meanwhile, the lowest FAm and FAn values obtained from the soft ventral fins which are 0.93 and 0.50. The overall FAm value is 5.93 and the overall FAn value is 1.94.
Full Text:
1-4References
Blanco G, Sanches JA, Vazquez E, Garcia E and Rubio J. 1990. Superior developmental stability of heterozygotes at enzyme loci in Salmo salar L. Aquaculture 84:199-209.
Clarke GM. 1992. Fluctuating asymmetry: A technique for measuring developmental stress off genetic and environmental origin. Acta Zoology Fennica. 191:31-35.
Handoyo B. 2002. Fluctuating asymmetry of humpback grouper (Cromileptes altiveis) in Situbondo Brackishwater Aquaculture Development Center, East Java. [Thesis]. Bogor: Institut Pertanian Bogor.
Hardjamulia A. 1999. Management and dissemination of broodstocks support releasing freshwater fish varieties. Meeting Proceedings Fry Technology Engineering Agribusiness Freshwater, Brackish, and Marine Fish. Directorate General of Fisheries, Ministry of Agriculture. Jakarta. Page 8-5.
Leary RF and Allendorf W. 1985. Heterozygosity and development stability in gynogenetic diploid and triploid rainbow trout. Heredity 54:219-225.
Leary RF, Allendorf W and Knudsen. 1985a. Development instability as an indicator of reduced genetic variation in hatchery trout. Transaction of the American Fisheries Society 144:230-235.
Leary RF, Allendorf W and Knudsen. 1985b. Development instability as high meristic count indicator of reduced genetic variation in hatchery trout. Transaction of the American Fisheries Society 144:230-235.
Popma T and Masser, M. 1999. Tilapia: Life History and Biology. SRAC Publication No. 283. Southern Regional Aquaculture Center, Stoneville, MS.
Saanin H. 1984. Taxonomy and fish identification keys I and II. Bina Cipta. Bandung.
Sugiarto. 1991. Quantitative characters of first generation of diploid mitotic ginogenetic and diploid meiotik and ginogenetic of Majalaya common carp (Cyprinus carpio L) Majalaya. [Thesis]. Bogor: Institut Pertanian Bogor.
Van Valen L. 1962. A study of fluctuating asymmetry. Evolution 16(2):152-142.
Widiyati A dan Sumantadinata K. 2007. Fluctuating asymmetry of 69 tilapia (Oreochromis niloticus) from Lake Tempe (South Sulawesi) and GIFT tilapia of Sukamandi, Jatiluhur, and Sukabumi. Jurnal Riset Akuakultur 2(3):395-398.
DOI: http://dx.doi.org/10.20884/1.oa.2017.13.1.140

This work is licensed under a Creative Commons Attribution 4.0 International License.
Omni-Akuatika by Fisheries and Marine Science Faculty - Jenderal Soedirman University is licensed under the Creative Commons Attribution 4.0 International License.