The occurrence of sub-ice algal aggregations off northeast Greenland
The occurrence of sub-ice algal aggregations off northeast Greenland
复制标题
格陵兰岛东北部冰下藻类聚集的发生
作者：
J. Gutt
使用配备摄像头的遥控车在格陵兰岛东北部第一年冰层下的两个站记录了冰下藻类群落的大量生长。组合主要由硅藻直链藻Melosira arctica（Ehr.）迪克在1993年6月初取样的一个站揭示了两种形式的增长，窗帘状和绳状，但有许多中间类型沿着整个150米样带。藻类的分布呈斑块状。没有发现显着的symagic动物靠近藻类群众。在7月中旬取样的一个监测站，类似的藻类浓度似乎受到冰融化过程的干扰。多年冰流下的两个铸件未能显示任何藻类聚集。第一年冰下的藻类组合的观察是在对比从巴伦支海，他们已经完全记录在多年冰下的早期报告。
Massive growth of sub-ice algal assemblages was recorded at two stations under first-year ice off northeast Greenland using a Remotely Operated Vehicle equipped with cameras. The assemblages mainly consisted of the diatom Melosira arctica (Ehr.) Dickie. A station sampled at the beginning of June 1993 revealed two forms of growth, curtain-like and rope-like, but with many intermediate types along the entire 150 m transect. The algal distribution was patchy. No significant sympagic fauna was found close to the algal masses. At a station sampled in the middle of July, similar algal concentrations seemed to be disturbed by ice-melting processes. Two casts under multi-year ice flows failed to show any algal aggregations. The observation of algal assemblages under first-year ice is in contrast to earlier reports from the Barents Sea where they have been recorded exclusively under multi-year ice.