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| Nedelec, Florence; Fielding, Sophie; Anderson, Thomas R.; Statham, Peter J.. |
| Zooplankton take up trace metals either from the surrounding aquatic medium or from their food. Accumulated trace metal concentrations therefore vary with the bio-availability of the metal in seawater and in the diet, and with the physiology of the organisms (Rainbow, 2002). The Antarctic copepods Rhincalanus gigas, and Calanus sp. are herbivorous, and the amount of Fe assimilated by these grazers is affected by the iron status of their prey. In incubation experiments the Fe:C ratio of copepods was lower than their prey. This may be due to copepods having a lower iron demand than phytoplankton, or to iron not being efficiently assimilated (Schmidt et al., 1999). If iron is not assimilated efficiently and given that respiratory systems may require more iron... |
| Tipo: Text |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00086/19752/17394.pdf |
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| Holt, Jason; Allen, J. Icarus; Anderson, Thomas R.; Brewin, Robert; Butenschoen, Momme; Harle, James; Huse, Geir; Lehodey, Patrick; Lindemann, Christian; Memery, Laurent; Salihoglu, Buis; Senina, Inna; Yool, Andrew. |
| It has long been recognised that there are strong interactions and feedbacks between climate, upper ocean biogeochemistry and marine food webs, and also that food web structure and phytoplankton community distribution are important determinants of variability in carbon production and export from the euphotic zone. Numerical models provide a vital tool to explore these interactions, given their capability to investigate multiple connected components of the system and the sensitivity to multiple drivers, including potential future conditions. A major driver for ecosystem model development is the demand for quantitative tools to support ecosystem-based management initiatives. The purpose of this paper is to review approaches to the modelling of marine... |
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| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00213/32434/30901.pdf |
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