A pilot-scale study of the vegetative propagation and suspended cultivation of the carrageenophyte alga Gigartina skottsbergii in southern Chile

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Abstract: 

Different propagation techniques for cultivationof vegetativeGigartina skottsbergiifronds were testedusing a system of suspended ropes, to which inoculantswere attached. Our results showed that triangular fragmentsobtained from the circularG. skottsbergiithalli producedharvestable frond of 800 cm2after 8 months. In contrast,inoculants of intact juvenile fronds of comparable sizeneeded at least 10 months to reach the same size. A controlexperiment with spores developing on an artificial substrateshowed that 20 months were needed to reach a surface of500 cm2, confirming the superiority of our fragment culturesystem. A pilot study demonstrated that with a density ofsix fronds m−1of farming line, the proposed system can beeconomically interesting for local fishermen.

Author(s): 
Renato Westermeier
David J. Patiño
Pedro Murúa
Juan C. Quintanilla
Juan Correa
Alejandro H. Buschmann
Ismael Barros
Keywords: 
Carrageenophyte
Cultivation
Gigartina skottsbergii
Regeneration
Rhodophyta
Southern Chile
Link / Ref: 
ResearchGate
Attachment: 
PDF icon A pilot-scale study of the vegetative propagation and suspended cultivation of the carrageenophyte alga Gigartina skottsbergiiin southern Chile.pdf
Article Source: 
J. Appl Phycol (2012) 24: 11-20
Category: 
Aquaculture methods
Basic Biology
Seaweed composition