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- W2000547713 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 398:109-125 (2010) - DOI: https://doi.org/10.3354/meps08273 Prediction of ecological niches and carbon export by appendicularians using a new multispecies ecophysiological model F. Lombard1,2,*, L. Legendre1, M. Picheral1, A. Sciandra1, G. Gorsky1 1Laboratoire d’Océanographie de Villefranche, Université Pierre et Marie Curie Paris 06 and CNRS, UMR 7093, LOV, 06230 Villefranche-sur-Mer, France 2Present address: DTU Aqua, Technical University of Denmark, Kavalergården 6, 2920 Charlottenlund, Denmark *Email: fla@aqua.dtu.dk ABSTRACT: We developed, calibrated and validated an ecophysiological model that represents food consumption, growth and production of faecal pellets and discarded houses during the life cycle of Oikopleura dioica, O. longicauda, O. fusiformis and O. rufescens, which are among the most abundant appendicularian species in the ocean. The forcing variables of the model are temperature (T) and food concentration. We calculated the growth rates of the 4 species and predicted the dominant species as a function of environmental conditions on 3 ecological applications. Firstly, we used the seasonal changes in T and chlorophyll a (chl a) in the English Channel to predict the seasonal succession of the 4 species. Secondly, using sea surface T and chl a data from the MODIS satellite, we determined the dominant appendicularian species over the World Ocean, thus providing a first-ever description of appendicularian biogeography over the 4 different seasons. Thirdly, we applied our model to in situ observations performed with the Underwater Video Profiler during the POMME 3 cruise in the Northeastern Atlantic in 2001. In areas of high appendicularian concentrations (135 ind. m–3), the appendicularians grazed daily only 0.6% of the stock of total particulate carbon. Of this grazed material, 21% was used for growth, 14% was respired and 65% was lost as detritus. Based on our model predictions, we concluded that at 2 of the 4 sampling stations, the integrated mass of detritus produced by the appendicularian population equalled or exceeded the carbon flux recorded in sediment traps at 200 m depth. This indicated high rates of disaggregation and/or consumption of these particles during their transit to depth. KEY WORDS: Zooplankton · Appendicularians · Modelling · Biogeography · Seasonal successions · Carbon flux Full text in pdf format PreviousNextCite this article as: Lombard F, Legendre L, Picheral M, Sciandra A, Gorsky G (2010) Prediction of ecological niches and carbon export by appendicularians using a new multispecies ecophysiological model. Mar Ecol Prog Ser 398:109-125. https://doi.org/10.3354/meps08273 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 398. Online publication date: January 05, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
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- W2000547713 title "Prediction of ecological niches and carbon export by appendicularians using a new multispecies ecophysiological model" @default.
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