Influences of Temperature and Density on the Feeding Growth, and Blind-side Malpigmentation of Fry Starry Flounder Platichthys stellatus

• DOI: 10.5657/kfas.2014.0588
• Publication Date: 2014-12-11T02:46:59Z
• Authors: Duk-Young Kang; Won-Jin Kim; Hyo-Chan Kim; Young Jin Chang
• Keywords: Platichthys

To examine the influences of water temperature and stocking density on feeding, growth blind-side hypermelanosis starry flounder Platichthys stellatus, we performed an experiment with fry at two densities: 2 8 fish/L. The had a total length <TEX>$3.2{\pm}0.1cm$</TEX>, body weight <TEX>$0.6{\pm}0.1g$</TEX>, pigmented patches (pigmented ratio <TEX>$2.6{\pm}0.4%$</TEX>) blind side. Duplicate experiments were conducted in 93.7 L glass tanks for 120 days, from July to November. We determined daily food intake (DFI), efficiency (FE), growth, survival rate, hypermelanic fish, area rate side 60-day intervals. DFI was less than 50 mg/fish/day, delayed September (water [WT]> <TEX>$20^{\circ}C$</TEX>). After October, when WT < <TEX>$20^{\circ}C$</TEX>, increased significantly accelerated, suggesting that rearing artificial facilities should be <TEX>$20^{\circ}C$</TEX>. While FE, did no differ between groups, higher fish/L There difference groups. Although not correlated size, malpigmentation growth. These results suggest high is main cause hypermelanosis, although it can accelerate flounder.