【摘要】 为研究珍珠龙胆石斑鱼对海水温度、盐度、溶解氧等主要环境因子的耐受,选择健康活泼的珍珠龙胆石斑鱼个体,采用渐变式方法达到设计的要求,进行试验。结果表明:珍珠龙胆石斑鱼对水温、盐度和溶解氧耐受范围较广,适宜水温为20～35℃,临界下限水温为10℃,临界上限水温为39℃;适宜盐度为11～40,临界下限盐度为3,上限盐度可到45以上;耐受低氧:DO₁为0.70 mg/L,DO₅₀为0.67 mg/L,DO₁₀₀为0.60 mg/L。更多还原

【Abstract】 In order to study the tolerance on seawater temperature, salinity, dissolvedoxygen and other environmental factors changes of PearlGentian Grouper（Epinephelusfuscoguttatus♀×E.lanceolatus♂）, healthy Pearl Gentian Groupers were selected to conduct the gradient experiment. The results showed that tolerance ability of Pearl Gentian Grouperon water temperature, salinity and dissolved oxygen was widely. While the optimum temperature range was 20-35 ℃, the lower critical temperature was 10 ℃, and the upper critical temperature was39 ℃; the optimum salinity was 11-40, and the lower critical salinity was 3; tolerance to dissolved oxygen:DO₁ was 0.70 mg/L,DO₅₀ was 0.67 mg/L,and DO₁₀₀ was 0.60 mg/L.更多还原