摘要
为了解厦门马銮湾虾池附近外来物种沙筛贝(Mytilopsissallei)的种群动态及其对大型底栖动物的生态效应,2003年8月～2004年9月在虾池外侧水域布设4个挂板点进行挂板实验,同时调查沉积物沙筛贝的分布.实验结果表明,马銮湾虾池附近水域周年内7个月有沙筛贝幼体附着,从5月份开始至11月份,附着高峰期是6月份.无论是挂板还是沉积物,靠近虾池排水口的水域沙筛贝附着密度较低,而远离虾池排水口的水域沙筛贝附着密度较高.沙筛贝的垂直分布随不同月份而有所变化,6、7月份沙筛贝的垂直分布基本上是随挂板深度增加而增加的,而8月份沙筛贝的垂直分布基本上是随挂板深度增加先增加而后减少,在水深40cm左右形成高峰.
Panel test had been carried out to investigate the exotic species Mytilopsis sallei in sediment outside shrimp pond in Maluan Bay from August 2003 to September 2004 to realize its population dynamics and ecological effect on macrozoobenthos.Four panel stations were designed.The results showed that larva of Mytilopsis sallei was found on panel from May to November and peaked in June.The density of Mytilopsis sallei near outfall of shrimp pond was higher than that far from outfall of shrimp pond both on panel and in sediment.The vertical distribution of Mytilopsis sallei is somewhat changed in different monthes.In June and July,the density of Mytilopsis sallei increases with depth.In August,the density of Mytilopsis sallei increases between 0~40 cm depth and decreases between 40~90 cm depth.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第B06期54-57,共4页
Journal of Xiamen University：Natural Science
