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Titlebook: Upwelling Ecosystems; Rolf Boje,Matthias Tomczak Conference proceedings 1978 Springer-Verlag Berlin Heidelberg 1978 Ecosystems.dynamics.ec

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书目名称Upwelling Ecosystems
编辑Rolf Boje,Matthias Tomczak
视频video
图书封面Titlebook: Upwelling Ecosystems;  Rolf Boje,Matthias Tomczak Conference proceedings 1978 Springer-Verlag Berlin Heidelberg 1978 Ecosystems.dynamics.ec
描述Upwelling areas are among the most fertile regions of the ocean. In principle, upwelling is caused by the divergence of the flow in the surface layer of the ocean which arises as a consequence of a particular wind field, the presence of a coastline, or other special conditions. Since deeper oceanic layers are usually enriched wi th nutrients, it is the permanent supply of nutrients which forms the basis for the high producti vi ty of upwelling reg ions. The study of upwelling and its consequences were, for a long time, the task of individual scientists from all disciplines of marine science. Today, it is perhaps the branch of oceanography where interdisciplinary coopera­ tion has developed best. Becoming aware of the large potential yield of upwelling regions, governments in­ creased the funds for upwelling research. With research activities developed on a larger scale, interdisciplin­ ary cooperation became a necessity. On the international level, several symposia documented the rapid development. Three volumes reflect the results of these scientific meetings (Rapp. Proc.-Verb. 159, 1970; Inv. Pesq. 35, 1, 1971; Tethys §.‘ 1-2, 1974). The present book contains selected papers from
出版日期Conference proceedings 1978
关键词Ecosystems; dynamics; ecosystem; phytoplankton; plankton; wind; marine and freshwater sciences
版次1
doihttps://doi.org/10.1007/978-3-642-66985-9
isbn_softcover978-3-540-08822-6
isbn_ebook978-3-642-66985-9
copyrightSpringer-Verlag Berlin Heidelberg 1978
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On the Ecological Significance of , in the Northwest African Upwelling Areang out of the marginal strutted processes of each cell are twisted, and thus connect one chain to the other, building a tube-like colony with a diameter of up to 1 cm. Mucus, which was described for this species in the original description (Schrader, 1972) was absent, as revealed by light microscopy of living colonies on board the ship.
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Upper Trophic Levels in Upwelling Areasxample, the rate of change of the algal reproductive rate. In contrast to the spring outburst in temperate waters, that of low latitude seas is continuous and of low amplitude because the delay period may be so short as not to exist at all.
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Zooplankton Communities in the West African Upwelling Areats for exploitation of different populations of commercial interest. Another reason which has motivated the scientific research is a need to understand what mechanisms are involved in the planktonic production.
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What is an Upwelling Ecosystem? opinions on the subject. Upwelling areas are the site of processes of fertilization. They represent a local deformation of the ecological fields. The deformation is the result of a stress applied on a limited space. In the case of upwelling, the stress consists of energy made available in such area
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