effect of short-term preharvest strategies on the carbon constituents of Ulva ohnoi M. Hiraoka et S. Shimada

One of the main challenges of seaweed culture is to maximize the content of potentially valuable carbon constituents while maintaining high growth rates, thereby improving the value of culture process. This may be achieved by the manipulation of cultivation conditions, inducing a short-term imbalanc...

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Bibliographic Details
Published in:Journal of applied phycology 2016-02, Vol.28 (1), p.555-565
Main Authors: Malta, Erik-jan, de Nys, Rocky
Format: Article
Language:English
Subjects:
Algae
Biochemical composition
Biomedical and Life Sciences
carbohydrate content
Carbon
chlorophyll
Cultivation
Ecology
fluorescence
Freshwater & Marine Ecology
Life Sciences
lipids
macroalgae
Nutrient content
Nutrient flow
nutrients
photosystem II
Plant Physiology
Plant Sciences
seaweed culture
Ulva
Water flow
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Summary:One of the main challenges of seaweed culture is to maximize the content of potentially valuable carbon constituents while maintaining high growth rates, thereby improving the value of culture process. This may be achieved by the manipulation of cultivation conditions, inducing a short-term imbalance in carbon metabolism. Here, we tested this concept in the chlorophyte seaweed Ulva ohnoi in a pilot land-based seaweed cultivation system. A first experiment used an abrupt 95 % reduction in water flow and therefore nutrient flux. The content of carbohydrate and lipid of Ulva increased by 16 and 14 % respectively within 2 days compared to the control, whereas growth rates decreased by
ISSN:0921-8971
1573-5176
DOI:10.1007/s10811-015-0543-3