Esquema biogeográfico del Mar Argentino
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The fauna of the Argentine (SW Atlantic Ocean) shelf allows to distinguish two biogeographic provinces: the Argentine and the Magellanic that are part of the Subtropical and Subantarctic Regions. The former extends from 30° S-32° S to 41° S-44° S and from the coast to the 82-95 m isobath, between 35° S-39° S, to 70 m depth in the north Patagonia. The latter extends from the Valdés Peninsula to the southern extreme and from 43° S northward, east area of the Argentine Province. The different physiographic characteristics allow to distinguish movable sandy bottoms in the Argentine Province and in the Magellanic gravel bottoms where large algae grow. The climatic differences explain the prevalence of northern winds in the first, where warm and temperate-cold coastal waters alternate and western strong winds in the second with net predominance of subantarctic waters from the Malvinas Current. The factors mentioned explain the differences in the faunal composition of both Provinces; the Arge.....
Other TitleArgentine Sea biogeographic scheme
JournalRevista de Investigación y Desarrollo Pesquero
PublisherMar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)