广西科学2013，Vol.20Issue(1)：52-56,5.
不同溶氧水平对褐牙鲆幼鱼呼吸行为和血液指标的影响
Effects of Dissolved Oxygen Content on Respiratory Behavior and Blood Parameters of Juvenile Paralichthys olivaceus
摘要
Abstract
Dissolved oxygen content (DO, Mean±SE) of the aquarium was controlled at (2. 24 ± 0. 24) mg/L,(3. 14 ± 0. 24) mg/L,(4. 27 ± 0. 18) mg/L,(5. 38 ± 0. 25) mg/L,and (6. 94 ± 0. 14) mg/L, respectively, by limiting the seawater supply to the aquarium. The effects of dissolved oxygen content on respiratory behavior and blood parameters of juvenile Paralichthys olivaceus were investigated. The ratio of gill weight to body weight did not appeared significant difference at the end of the experiment and it was slightly lower in P. olivaceus supplied with the highest DO than other treatment. The average ventilation frequency (VF) and the opercular stretching grade (OSG) increased as DO declined. The proportion of head raising (PHR) of fish was negatively correlated to DO. Red blood cell amount (RBC), haemoglobin concentration (Hb), and red blood cell hemoglobin (MRBCH) were negatively correlated to DO. No significant correlation between red blood cell volume (RBCV) and DO was observed, but RBCV in treatment with (3. 14 ± 0. 24 ) mg/L DO was significantly greater than other treatment. It could be concluded that the critical DO for juvenile P. olivaceus may be about 4 mg/L. A great elevation of VF, OSG, and PHR could be used as a criterion Guangxi Sciences, Vol. 20 No. 1, February 2013 for hypoxia. The juvenile P. olivaceus could adapt the descending of DO by enhancing the capacity of oxygen taking and carrying.关键词
褐牙鲆/溶解氧/呼吸/红细胞/血红蛋白Key words
Paralichthys olivaceus , dissolved oxygen content, ventilation, red blood cell, Haemoglobin分类
农业科技引用本文复制引用
黄国强,李洁,柳意樊..不同溶氧水平对褐牙鲆幼鱼呼吸行为和血液指标的影响[J].广西科学,2013,20(1):52-56,5.基金项目
国家自然科学基金项目(30600462)资助. （30600462）
