文章基本信息

标题：Dinoflagellates and ciliates at Helgoland Roads, North Sea
本地全文：下载
作者：Martin Günther Joachim Löder ; Alexandra Claudia Kraberg ; Nicole Aberle 等
期刊名称：Helgoland Marine Research
印刷版ISSN：1438-3888
出版年度：2012
卷号：66
期号：1
页码：11-23
DOI：10.1007/s10152-010-0242-z
出版社：BioMed Central
摘要：A monitoring programme for microzooplankton was started at the long-term sampling station “Kabeltonne” at Helgoland Roads (54°11.3′N; 7°54.0′E) in January 2007 in order to provide more detailed knowledge on microzooplankton occurrence, composition and seasonality patterns at this site and to complement the existing plankton data series. Ciliate and dinoflagellate cell concentration and carbon biomass were recorded on a weekly basis. Heterotrophic dinoflagellates were considerably more important in terms of biomass than ciliates, especially during the summer months. However, in early spring, ciliates were the major group of microzooplankton grazers as they responded more quickly to phytoplankton food availability. Mixotrophic dinoflagellates played a secondary role in terms of biomass when compared to heterotrophic species; nevertheless, they made up an intense late summer bloom in 2007. The photosynthetic ciliate Myrionecta rubra bloomed at the end of the sampling period. Due to its high biomass when compared to crustacean plankton especially during the spring bloom, microzooplankton should be regarded as the more important phytoplankton grazer group at Helgoland Roads. Based on these results, analyses of biotic and abiotic factors driving microzooplankton composition and abundance are necessary for a full understanding of this important component of the plankton.
关键词：Dinoflagellates;Ciliates;North Sea;Monitoring;Helgoland Roads;Seasonality