Grazing by the jellyfish, Aurelia aurita , on microzooplankton
Grazing by the jellyfish, Aurelia aurita , on microzooplankton
复制标题
DOI：
10.1093/plankt/9.5.901
复制
发表时间：
1987
影响因子：
2.1
通讯作者：
D. Stoecker;A. E. Michaels;L. H. Davis
中科院分区：
文献类型：
--
作者：
D. Stoecker;A. E. Michaels;L. H. Davis
水母是桡足动物和鱼类幼虫在沿海水域的季节性重要捕食者，但对其以植物为食的情况知之甚少。Medusae优先从天然的微型浮游动物组合中去除大型（50英镑/小时）寡鳃动物和桡足类鹦鹉螺。浮游植物、丁丁纲、轮虫和多毛类幼虫的清除率通常较低。在使用培养猎物混合物的喂养实验中，水母选择小的非门状纤毛虫而不是类似大小的藻类，选择非门状纤毛虫而不是tintinids，选择大的非门状纤毛虫而不是较小的纤毛虫。对进食水母的观察证实，在微噬进食过程中，捕获后的颗粒选择是重要的。
The medusa of the scyphozoan, Aurelia aurita, is a seasonally important predator of copepodj and fish larvae in coastal waters but little is known about its grazing on mkrozooplanltton. Medusae preferen- tially remove large (£50 /un) oligotrichs and copepod nauplii from natural microzooplankton assemblages. Clearance rates for phytoplankton, tintinnids, rotifers and polychaete larvae are usually low. In feeding ex- periments in which mixtures of cultured prey were used, medusae selected small non-loricate ciliates over similar-sized algae, non-loricate ciliates over tintinnids, and large non-loricate ciliates over smaller ones. Observations of feeding medusae confirmed that post-capture selection of particles is important during microphagous feeding.