Community structure and spatial distribution of phytoplankton in relation to hydrography in the Laptev Sea and the East Siberian Sea (autumn 2008)
作者： J. Hölemann , Ye. I. Polyakova , H. Kassens , A. E. Novikhin , E. N. Abramova
DOI: 10.1007/S00300-021-02873-W
关键词: Diatom 、 Chaetoceros diadema 、 Phytoplankton 、 Context (language use) 、 Chaetoceros 、 Plankton 、 Biology 、 Oceanography 、 Brackish water 、 Chaetoceros furcellatus
摘要: The Laptev Sea and the East Siberian are remote areas of Arctic region where detailed data on phytoplankton composition spatial distribution remain limited. In context ongoing environmental changes (increasing warming ice melting) prospective exploration activities (oil gas production) shelves, understanding seasonal interannual community dynamics is critical importance. Our study provides new specifying species over vast area shelf shelf. We found that outer seas was characterized by typical late spring diatom (Chaetoceros furcellatus, Chaetoceros diadema, debilis, constrictus). On inner Sea, which strongly affected Lena River water masses, were transition from summer to an autumn stage development. Local algal assemblages composed mixo- heterotrophic dinoflagellates (Dinophysis Protoperidinium genera) together with marine brackish water-marine diatoms (Thalassiosira hyperborea, Thalassiosira baltica, gravida, nordenskioeldii) accompanied sporadically occurring freshwater riverine planktonic (Aulacoseira granulata, Aulacoseira italica, Asterionella formosa). These variations in attributed differences hydrography, chemical conditions, sea-ice regime.
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