Ryu Yun-A, Choi Cheol Young, Kang Ju-Chan, Kim Jun-Hwan
Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea.
Division of Marine BioScience, National Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
Environ Toxicol Pharmacol. 2025 Jan;113:104610. doi: 10.1016/j.etap.2024.104610. Epub 2024 Dec 11.
Starry flounders (Platichthys stellatus, mean weight 105 ± 14 g, mean total length 20.2 ± 0.7 cm) were exposed to hexavalent chromium concentrations of 0, 5, 10, 20, 40, and 80 mg Cr/L for 96 hours. The half-lethal concentration (LC) of P. stellatus induced by acute exposure to waterborne hexavalent chromium for 96 hours was found to be 58.84 mg Cr/L. In hematological parameters, red blood cell counts (RBCs), hemoglobin and hematocrit were significantly increased (P < 0.05). Major plasma components also changed significantly due to exposure to waterborne hexavalent chromium. Calcium in plasma inorganic components significantly increased, and glucose and cholesterol in plasma organic components also showed significant increases (P < 0.05). Plasma enzyme components such as AST, ALT and ALP were significantly increased (P < 0.05) at high levels of waterborne hexavalent chromium exposure. The results of this study suggest that acute exposure to waterborne hexavalent chromium in P. stellatus affects survival rates, hematological properties and plasma components.
星斑川鲽（星斑川鲽，平均体重105±14克，平均全长20.2±0.7厘米）暴露于浓度为0、5、10、20、40和80毫克铬/升的六价铬中96小时。发现急性暴露于水体六价铬96小时诱导的星斑川鲽半致死浓度（LC）为58.84毫克铬/升。在血液学参数方面，红细胞计数（RBCs）、血红蛋白和血细胞比容显著增加（P<0.05）。由于暴露于水体六价铬，主要血浆成分也发生了显著变化。血浆无机成分中的钙显著增加，血浆有机成分中的葡萄糖和胆固醇也显著增加（P<0.05）。在高浓度水体六价铬暴露下，血浆酶成分如谷草转氨酶（AST）、谷丙转氨酶（ALT）和碱性磷酸酶（ALP）显著增加（P<0.05）。本研究结果表明，星斑川鲽急性暴露于水体六价铬会影响其存活率、血液学特性和血浆成分。
