Resource (Light and Nitrogen) and Density-Dependence of Seaweed Growth
Duarte, Carlos M.
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Marine Science Program
Red Sea Research Center (RSRC)
Permanent link to this recordhttp://hdl.handle.net/10754/660348
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AbstractSeaweed aquaculture is a rapidly growing component of marine food production, but the capacity to control seaweed growth lacks behind that of land agriculture. Seaweed growth requires nutrients, acquired from dissolved pools through their fronds, and light, and, as such may also be density-dependent, but general relationships between seaweed growth, nutrient concentration and incident irradiance are not yet available. We used a dataset of 1729 experimental assessments of seaweed specific growth rates and density under various nutrient and irradiance levels retrieved from the published literature to examine the relationship between seaweed growth, density, irradiance, and nutrient concentration. This analysis confirmed strong density-dependence of seaweed specific growth rates, and further confirmed that nutrient and irradiance limitation strongly impose density-dependent seaweed growth. These findings demonstrate that nutrient and irradiance limitation modulate density-dependent seaweed growth, and can help maximize growth rates in seaweed aquaculture, a rapidly growing component of global aquaculture production, by manipulating stocking density where nutrients are scarce and/or underwater light penetration poor.
CitationXiao, X., Agusti, S., Lin, F., Xu, C., Yu, Y., Pan, Y., … Duarte, C. M. (2019). Resource (Light and Nitrogen) and Density-Dependence of Seaweed Growth. Frontiers in Marine Science, 6. doi:10.3389/fmars.2019.00618
SponsorsFunding. This study was supported by the National Natural Science Foundation of China (Grants 21677122 and 21876148 to XX), the China’s International Science and Technology Cooperation Program (Grant 2015DFA01410 to JW and CD) from the Ministry of Science and Technology of China, King Abdullah University of Science and Technology (KAUST) through the baseline fund to CD and SA, the open fund of the Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA (LMEB201709 to XX), and the Fundamental Research Funds for the Central Universities (to XX).
PublisherFrontiers Media SA
JournalFrontiers in Marine Science
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Xiao, X., Agustí, S., Lin, F., Xu, C., Yu, Y., Pan, Y., Li, K., Wu, J., & Duarte, C. M. (2019). Dataset on the specific growth rate of seaweed growing in experimental and aquaculture conditions at various biomass densities, irradiation and nutrient concentrations, supplement to: Xiao, Xi; Agustí, Susana; Lin, Fang; Xu, Caicai; Yu, Yan; Pan, Yaoru; Li, Ke; Wu, Jiaping; Duarte, Carlos Manuel (2019): Resource (Light and Nitrogen) and Density-Dependence of Seaweed Growth. Frontiers in Marine Science, 6 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.907407. DOI: 10.1594/pangaea.907407 Handle: 10754/664835
Except where otherwise noted, this item's license is described as Archived with thanks to Frontiers in Marine Science