Composition and distribution of phytoplankton in the region of upwelling off the coast of Peru

52 pages, 13 figures, tables[EN] The study of about 250 samples was undertaken during part of the cruise to Peru of the R/V T.G. Thompson, of the University of Washinton, from March to May 1969. [...] Spirodinium spirale, Ceratium puchellum, Polykrikos schwarzii, Cochlodinium brandtii, Prorocentrum maximum, Gymnodinium splendens [...][ES] Las aguas costeras peruanas presentan una extraordinaria riqueza en fitoplancton que, a su vez, alimenta una población enorme de peces convirtiendo aquella zona en una región de gran interés económico pesquero. [...