Progression of Blind‐Side Hypermelanosis after Metamorphosis in Cultured Flounder, Paralichthys olivaceus

• DOI: 10.1111/j.1749-7345.2012.00610.x
• Publication Date: 2012-12-10T09:42:55Z
• Authors: Duk‐Young Kang; Hyo‐Chan Kim
• Keywords: Paralichthys; Olive flounder

We recorded the initial appearance of pigmentation on blind side in olive flounder, Paralichthys olivaceus , and investigated morphological features abnormal blind‐side hypermelanic juveniles at microscopic level. In addition, we examined development malpigmentation flounder during early development, from 24 to 94 days after hatching (d.a.h.). A total 60 were collected every 7 d assessed for quantitative pattern changes pigmentation. The primitive spot first patch visible under a microscope naked eye appeared 38 d.a.h. (total length [TL] = 18.3 ± 0.4 mm, body weight [BW] 57.6 4.1 mg) 45 (TL 28.1 0.7 BW 213.0 14.9 mg), respectively, around area between anus pelvic fin or caudal edge trunk. malpigmented was composed adult‐type melanophores, xanthophores, iridophores, indicating that it can reversely change its color according background color, as eyed both pattern. pigmented patches subsequently became more distinctive large spread across entire fish.