期刊
AQUACULTURE RESEARCH
卷 48, 期 8, 页码 4308-4320出版社
WILEY
DOI: 10.1111/are.13253
关键词
biofilm; diatom; Rhodobacteraceae; probiotics; aquaculture; Seriola lalandi
类别
资金
- Ministry of Education of Chile [MESESUP ANT1201, CM ANT1555]
- National Commission of Scientific and Technological Research of Chile (CONICYT) [FONDEF D10I1050, D10E1050]
Controlled incorporation of selected microalgae and bacteria in aquaculture systems can be beneficial because they can act as microbiological control. That is why the characteristics of biofilm generated naturally in Seriola lalandi culture cages were analysed, their potential benefit to the growth of larvae was studied, and their controlled use for improving the larval viability and as a vector to improve incorporation of previously studied probiotic bacteria was tested. According to biodiversity results, these biofilms are composed of a diatom-bacteria mix showing a decrease in biodiversity in laboratory culture conditions being dominated by Navicula phyllepta and bacteria of the family Rhodobacteraceae. This can be produced on mesh substrates incorporated in bioreactors with rapid growth rate and adhesiveness. Preliminary results from the addition of substrates with this specific biofilm in larvae culture systems showed that it is consumed by the larvae without negative effects, while positive effects on the viability of larvae in combination with probiotics were observed. Considering preliminary results, the addition of these specific substrates with diatom-bacteria biofilms could be a good improvement for aquaculture systems and together with the use of probiotics can contribute to maintaining a stable and controlled system improving the viability of the larval fish culture in its early stages.
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