Seaweed nutrient physiology: application of concepts to aquaculture and bioremediation

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Abstract: 

Inorganic carbon, nitrogen and phosphorus are the main elements required by seaweeds for photosynthesis and growth. This review focusses mainly on nitrogen, but the roles of carbon and phosphorus, which may interactively affect seaweed physiological processes, are also explored. Fundamental concepts such as limiting nutrients, sources, and ratios, mechanisms of nutrient uptake, nutrient assimilation and storage, patterns of uptake and preferences for different nitrogen sources are discussed. The roles of abiotic (water motion, light, temperature, salinity and desiccation) and biotic (life stages and age class) factors in nutrient (nitrogen, phosphorous, carbon) uptake are also reviewed. Understanding species-specific nitrogen physiologies and nitrogen source preferences will enable polyculture of different seaweed species and the use of seaweeds as biofilters in integrated multitrophic aquaculture systems.

Author(s): 
MICHAEL Y. ROLEDA
CATRIONA L. HURD
Keywords: 
Carbon
C:N:P
IMTA
Limiting nutrient
Nitrogen
Nutrient uptake
Phosphorus
Link / Ref: 
tfandonline
Attachment: 
PDF icon Seaweed nutrient physiology application of concepts to aquaculture and bioremediation.pdf
Article Source: 
PHYCOLOGIA 2019, VOL. 58, NO. 5, 552–562
Category: 
Ecological Services
Seaweed composition