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Title: The use of image analysis systems for the assesment of zooplankton physiological rates and carbon fluxes
Other Titles: The use of an image-based approach for the assessment of zooplankton physiological rates: a cmparison with enzymatic methods
Authors: Garijo, Juan Carlos
UNESCO Clasification: 251001 Oceanografía biológica
Keywords: Zooplankton
Image analysis
Carbon flux
Issue Date: 2014
Abstract: Measuring zooplankton physiological rates is of paramount importance in biological oceanography in order to assess the role of this community in e.g., carbon fluxes. Classical methods (incubations) are highly time-consuming and impractical to match physical and chemical measurements in oceanography. Attempting to solve this, a variety of methods (egg production, RNA/DNA ratio, enzyme activities, etc.) have evolved over the last decades. These methods also show many uncertainties and hitherto only in- cubation methods have been widely accepted. Predictive equations relating physiological processes and body weight and temperature, are a rough alternative normally used to ascertain the role of these organ- isms in the ecosystem. However, using imaging systems and empirical relationships to determine body weight allow the application of physiological models to each individual, obtaining reliable estimations for taxonomic groups and size classes. In this study, the physiological rates assessed from predictive equations in combination with an image-based analysis system (ZooImage) were compared with enzy- matic methods. We observed a consistent agreement between both methodologies, the former resulting a faster procedure for the appraisal of community carbon fluxes in large spatial and temporal scales.
Description: Trabajo realizado por: Garijo, J. C., Hernández León, S.
Source: IV Simposio Internacional de Ciencias del Mar = IV Congreso de Ciencias del Mar = IV International Symposium in Marine Sciences. -- Las Palmas de Gran Canaria, 2014. -- Biological Oceanography. Comunicaciones
Rights: by-nc-nd
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