不同生态因子对匍茎草苔虫排氨率的影响

Ammonia excretion rate of Bugula stolonifera

通过试验生态学方法，采用静水系统，对我国北方常见的污损生物匍茎草苔虫（Bugula stoloni f era Ryland ，1960）排氨率进行了初研究，主要包括匍茎草苔虫在饥饿状态下，温度对其排氨率的影响；温度和盐度交互作用对其排氨率的影响；温度和pH交互作用对其排氨率的影响。为预防控制海洋污损生物对养殖生物正常生长存活有着非常重要的意义，也为更深一步规划出有效的防治方法提供一定的基础科学依据。具体试验结果为：1．温度对匍茎草苔虫的排氨率具有极其显著的影响，在12～27℃范围内，呈1个峰值变化，在24℃时其排氨率达到最高值；2．温度与盐度的交互作用对其排氨率有显著的影响，在12～27℃条件下，盐度在16‰～40‰范围内，呈1个峰值变化，在盐度32‰时其排氨率达到最高值；3．温度与p H的交互作用对其排氨率有极其显著的影响，在12～27℃条件下，p H在5～10范围内，呈1个峰值变化，在p H为8时其排氨率达到最高值。

Based on the experimental ecological methods ,using hydrostatic system ,early Studing of the ammonia excretion rate to Bugula stoloni f era in northern China .mainly including Bugula stoloni f era in starvation ,Effect of temperature ,interaction of temperature and salinity and temperature and pH to its ammonia excretion rate .Not only the prevention of important significance in marine fouling organ-isms cultured biological hazards ,but also provide a basis for the further exploration and development of effective prevention and treatment methods .Specific test results are ： 1 .Temperature has a very significant impact on the creeping stems of Bugula stoloni f era excre-tion rate in the range of 12~27 ℃ ,showed a peak change when its ammonia excretion rate reached the highest value at 24 ℃ . 2 .Interaction of temperature and salinity have a significant impact on its ammonia excretion rate ,at 12~27 ℃ salinity in the range of 16‰ ~40‰ ,showed a peak change in salinity 32‰ ammonia excretion rate reached its highest value . 3 .Interaction of temperature and pH have an extremely significant impact on its ammonia excre-tion rate at 12~27 ℃ conditions ,pH in the range of 5~10 ,showed a peak change in pH 8 of its am-monia excretion rate maximum value .