罗源湾水母类的生态研究

ECOLOGICAL STUDIES ON THE MEDUSAE IN LUOYUAN BAY OF FUJIAN, CHINA

样品于1986年11月至1987年10月在福建省罗源湾10个站位采集。经鉴定有52种水母。它们可分为沿岸暖水、沿岸暖温和大洋广布三种生态类群。水母类总数量和种类数的季节分布呈单周期,两者高峰均出现在7月。低谷分别出现于11月和1月。在平面分布上,以拟细浅室水母Lensia subtiloides占优势的月份,数量从湾口向湾顶递减,而以球型侧腕水母Pleurobrachia globosa占优势的月份,数量却递增。文中还讨论了水母类的分布和环境因素的关系。

The materials were collected from November 1986 to October 1987. There are 52 species of medusae, which may be divided into three ecological groups as follows: neritic warm water, neritic warm temperature water and tropical oceanic groups. Maximum of total abundance and number of species of medusae occur in July. From head to the mouth of the bay, the total abundance of medusae increases when Lensia subtiloides dominates, and decreases when Pleurobrachia globosa dominates. The relationship between medusae and ecological environmental factors was discussed.