摘要为研究黑斑口虾蛄对海水盐度、水温、酸碱度(p H )等主要环境因子的耐受性,选取无伤病、活力强,体长(10.0±0.5)cm的虾蛄个体,采用渐变式方法达到设计的要求,进行试验观测。试验结果表明,黑斑口虾蛄对盐度适应性较强,盐度暂变时,在盐度14或36仍能存活,仅活力较弱而己。其较适宜的盐度为18~30,该种虽然分布在盐度较高的水域,仍属广盐性种类。其对水温适应性也较强,在水温渐变时,能存活水温为14℃或35℃以上,此时仅是体弱个体有开始死亡现象,如再逐渐提高水温仍能存活。其适宜水温为24~33℃。黑斑口虾蛄对酸碱度的适应能力也较强,能生存在酸性较强的pH 5.0,或碱性较强的pH10.0水环境中,其适宜的pH为7.0~9.0。
Abstract:The tolerance range of healthy mantis shrimp ,Oratosquillakempi ,with body length of (10 .0 ± 0 .5 ) cm to water temperature , salinity and pH was investigated with progressive alteration in a laboratory .The mantis shrimp was shown to have strong adaptability to variation in salinity , water temperature and pH ,with the optimal ranges of 18—30 in salinity ,24-33 ℃ in water temperature and 7.0—9 .0 in pH . Only weak mantis shrimp were found to be dead at a salinity of 14 or 36 ,water temperature of 14 or 35 ℃ ,and pH 5 .0 or 10 .0 indicating that O .kempi is an euryhaline shrimp species with excellent tolerance to great fluctuation in water temperature ,salinity and pH .
收稿日期: 2015-08-25
引用本文:
吴耀华,赵延霞. 黑斑口虾蛄对水温、盐度和 pH 的耐受性研究[J]. 水产科学, 2015, (8): 502-505.
WU Yaohua,ZHAO Yanxia. Tolerance of Mantis Shrimp Oratosquilla kempi to Water Temperature,Salinity and pH. Fisheries Science, 2015, (8): 502-505.