title: The Morphological Study of Wild and Farmed Olive Flounder (Paralichthys olivaceus): The Role of Indirect Selection within and between Populations.
abstract: This study was conducted to analyze the difference of body types within and between wild and farmed populations of olive flounder Paralichthys olivaceus using measured records of morphological traits. The results showed that surveyed traits and standard deviation were 1,355±742 g of body weight, 48.01±7.79 cm of total length, and 40.96±6.80 cm of body length. Also body height, body shape index and condition factor were 17.19±3.43 cm, 9.99±0.74 and 11.16±1.54, respectively. As result of least squares mean and standard error for each trait assumed in this study, those of farmed population showed significantly higher than those of wild population in all traits, exclusively in total length and body length (p<0.01). Particularly, the values of the body height and the body weight of the farmed population were higher than those of the wild population in the same total length. And the phenotypic correlation coefficients of the body weight, the total length, the body length and the body height showed strong positive correlation in all populations. These result suggested that morphological differences exist in farmed and wild flounder. Therefore, introduction of wild flounder is essential for the future production to improve the body type of farmed flounder, and parental fish should be chosen by considering selection of commercially important traits in the production process.
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Jong-Won
authors.initials: JW
authors.lastname: Park
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Young Mee
authors.initials: YM
authors.lastname: Lee
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Jae Koo
authors.initials: JK
authors.lastname: Noh
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Hyun Chul
authors.initials: HC
authors.lastname: Kim
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Choul Ji
authors.initials: CJ
authors.lastname: Park
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: In-Joon
authors.initials: IJ
authors.lastname: Hwang
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Sung-Yeon
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Genetics and Breeding Research Center, National Fisheries Research and Development Institute, Geoje 656-842, Korea.
authors.forename: Jeong Ho
authors.initials: JH
authors.lastname: Lee
keywords: Body type; Farmed; Morphological traits; Olive flounder; Wild