Comparison of the Phytoplankton Assemblages of the South-Eastern Barents Sea and South-Western Kara Sea: Phytogeographical Status of the Regions
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N. V. Druzhkov
Abstract
A comparison of the taxonomic composition of the diatom and dinoflagellate assemblages has been carried out for the south-eastern Barents Sea (Pechora Sea) and the south-western Kara Sea. All available literature and original data have been used in making the floristic lists which have been corrected for synonymy. The number of microphytoplankton species found in the south-western Kara Sea is somewhat higher than in the south-eastern Barents Sea (221 vs. 184 species respectively). The difference is most significant for the dinoflagellates (88 vs. 67 species). Diatoms formed a major part of the communities, accounting for 60% of the taxonomic composition in the Kara Sea, and 63% in the Barents Sea. In both regions, about 60% of the diatom assemblages are represented by centric diatoms, most of them being typical planktonic chain-forming species. A high similarity between the two areas was characteristic for most phytogeographical and ecological groups of the pelagic microalgae, and therefore we suggest that the plankton communities form a floristic entity with the status of a phytogeographical province. We name it the Novaya Zemlya Phytogeographical Province. The major reason for considering these two areas a biogeographical unit, is the similarity in the microphytoplankton assemblages and the stable water exchange which exists between the areas.
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
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Artikel in diesem Heft
- Comparison of the Phytoplankton Assemblages of the South-Eastern Barents Sea and South-Western Kara Sea: Phytogeographical Status of the Regions
- Intertidal Fungi in Mangalore Harbour, Southern India
- Epiphyte Accrual on Posidonia oceanica (L.) Delile Leaves: Implications for Light Absorption
- The Benthic Marine Algae of Uruguay
- On the Evolution of Interactions between Marine Mesoherbivores and Algae
- Bioaccumulation of Hg, Cd, Pb and Zn in Four Marine Phanerogams and the Alga Caulerpa prolifera (Försskal) Lamouroux from the East Coast of Spain
- Differential Antibacterial Activity of Extracts from Selected Southern African Macroalgal Thalli
- Seasonal Variations in the Yield, Gelling Properties, and Chemical Composition of Agars from Gracilaria eucheumoides and Gelidiella acerosa (Rhodophyta) from the Philippines
- Coexistence of Agaroid and Carrageenan Structures in a Polysaccharide from the Red Seaweed Rhodomela larix (Turner) C. Ag.
- Life History of a Marine Dinoflagellate Pyrophacus steinii (Schiller) Wall et Dale
- Halogenated Secondary Metabolites of Laurencia similis (Rhodomelaceae, Rhodophyta)
