EXPERIMENTAL TANK CULTIVATION OF GRACILARIA-CHILENSIS IN CENTRAL CHILE

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dc.contributor.authorUGARTE, R
dc.contributor.authorSANTELICES, B
dc.date.accessioned2025-01-23T19:22:19Z
dc.date.available2025-01-23T19:22:19Z
dc.date.issued1992
dc.description.abstractGracilaria chilensis was grown continuously in tanks over a 13-month period, changing the water only every 15 days, and adding CO2, air and nutrients. Biomass production was markedly seasonal, with a summer maximum of 100 g m-2 day-1 (wet) and a winter minimum of 10 g m-2 day-1. Average production was 4.1 kg m-2 year-1 (dry), fourfold greater than the production of wild beds. The material from tank cultivation contained 30-35% agar, as compared to 18% in wild G. chilensis. Epiphytism was the main problem in these cultures, and its control with chloride may reduce productivity by 40%. Pre-treatment of the water seems to be the best method to prevent epiphytes. The marked seasonality in biomass production suggests the need to change stock density, air bubbling frequency, levels of CO2 and nutrient enrichment, and harvest frequency from summer to winter. It was estimated that such adjustments could increase the productivity of this system to 6 kg m-2 year-1 of dry Gracilaria chilensis with an annual average agar yield of 30%.
dc.fuente.origenWOS
dc.identifier.issn0044-8486
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99014
dc.identifier.wosidWOS:A1992HE31100002
dc.issue.numero1-2
dc.language.isoen
dc.pagina.final16
dc.pagina.inicio7
dc.revistaAquaculture
dc.rightsacceso restringido
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleEXPERIMENTAL TANK CULTIVATION OF GRACILARIA-CHILENSIS IN CENTRAL CHILE
dc.typeartículo
dc.volumen101
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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