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Environment and algal nutrition
Gordillo, F.J.L. (2012). Environment and algal nutrition, in: Wiencke, C. et al. (Ed.) Seaweed biology: Novel insights into ecophysiology, ecology and utilization. Ecological Studies, 219: pp. 67-86
In: Wiencke, C.; Bischof, K. (Ed.) (2012). Seaweed biology: Novel insights into ecophysiology, ecology and utilization. Ecological Studies, 219. Springer-Verlag: Berlin, Heidelberg. ISBN 978-3-642-28450-2. xiii, 510 pp., more
In: Heldmaier, G. et al. (Ed.) Ecological Studies. Springer: Heidelberg; Berlin. ISSN 0070-8356, more
Peer reviewed article  

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    Algae; Nutrition; Marine

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  • Gordillo, F.J.L.

    In this chapter, algal nutrient dynamics are considered from an ecophysiological viewpoint in which different resource acquisition mechanisms of algae facing different environmental conditions are reviewed in order to better understand how they meet their nutritional needs. C is considered as “just another nutrient” since it shares many characteristics with the rest of major nutrients. In this contribution, the relationship between algal nutrition and their environment is considered, including the physical aspects such as water movements and seasonality. Nutrient availability is discussed in terms of environmental conditioning of N and P supply for storage and growth, and different species-specific metabolic strategies are presented. Mechanisms presented include switching the photosynthetic energy investment from C to N and P acquisition during the course of the day, or from summer to winter. Different mechanisms of resource utilization, such as the preferential use of ammonium over nitrate, in some but not all species, allow for the different species to coexist at the same time in the same community, and this strategy of partitioning brings a more effective resource use, i.e., better transfer to the whole food web. The use of isotope discrimination as a source marker and the application of nutrient removal by seaweeds are also discussed.

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