Variación interanual del mesozooplancton en la plataforma bonaerense en primavera: introducción de nuevas metodologías para su análisis
Di Mauro, R.
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The distribution and abundance of mesozooplankton (specially copepod, cladoceran and appendicularian species) of the Buenos Aires shelf obtained in spring, during the years 2002, 2003 and 2004, were analysed. A small bongo net provided with 67 and 220 µm meshes, was employed in order to obtain a complete representation of the size spectrum of the mesozooplankton. The analysis included both the traditional optical method and the a new automatic image analysis (ZooImage). The results were related with the oceanographic conditions, which were, in general similar to the mean conditions for the study area. The finer mesh (67 µm) allowed a more accurate estimation of the abundance and biomass of small copepod species ( 1mm total length), producing the tick mesh (220 µm) more than 90 of underestimation for adults and/or development stages of dominant species like the copepods Oithona nana, Paracalanus parvus, Euterpina acutifrons and Parvocalanus in individuals with trunk length smaller tha.....
Other TitleSpring interannual variations of mesozooplankton in the the Buenos Aires shelf: Introduction of new methodologies fot its analysis
Spatial CoverageAtlántico Sudoccidental