Effect of the Burrowing Substratum on the Growth and Ambicoloration of Juvenile Flounder Paralichthys olivaceus Cultured at High Density

• DOI: 10.5657/kfas.2014.0406
• Publication Date: 2014-10-17T04:18:21Z
• Authors: Duk-Young Kang; Hyo-Chan Kim; Jeong-In Myeong; Byung Hwa Min
• Keywords: Paralichthys; Olive flounder

To evaluate the influence of burrowing substrate on rearing performance and ambicoloration cultured flounder, Paralichthys olivaceus, we compared daily food intake (DFI), feed efficiency (FE), survival, growth, proportion pigmented skin blind side, ambicolored fish. We reared juvenile flounders [total length (TL) <TEX>$4.46{\pm}0.06cm$</TEX>, body weight (BW) <TEX>$0.77{\pm}0.03g$</TEX>] in dark-green fiberglass-reinforced plastic (FRP) aquariums without (control) or with gravel at a density 200 fishes/ton for 120 days. While there was no difference survival rate DFI lower FE higher group raised than control. The proportions area side fish were significantly control tank. Therefore, supplement aquarium bottom positively affects feeding efficiency, inhibits abnormal pigmentation flounder farming high density.