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    Marine macroalgal nursery: A model for sustainable production of seedlings for large scale farming

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    Date
    2018
    Author
    Gupta, V.
    Trivedi, N.
    Simoni, S.
    Reddy, C.R.K.
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    Abstract
    Innovative technologies in seaweed aquaculture are the need of the hour for sustaining the emerging global market demands. The supply of seedlings for year-round sea farming has remained as a major challenge for large-scale production of seaweeds. This study describes a simple innovative model integrating the designing of a prototype with an effective protocol for seedling production and their propagation for the continuous production of seedlings from seaweeds. The novelty of this model includes its design enabling maximum seedlings production and demonstration of reusability of enzyme employed for protoplast (seedlings) production for five times without compromising over the protoplast yield and viability. The laboratory test trials conducted to assess the effectivity of this model in the production of seedlings from protoplasts with Ulva yielded seedling biomass of 0.25?kg fresh wt. (>200 folds of initial biomass) in 44?days culture period over 0.33?m2 surface area. The present prototype is simple, scalable and facilitates a consistent production of a large number of quality seedlings from relatively a small sample size. A concept layout for scale-up production of seedlings in an outdoor facility is also proposed based on prototype tested in this study. The findings reported in this study collectively not only promote the concept for establishing the macroalgal nursery for large-scale production of quality seedlings suitable for extraction of pharmaceutical and nutraceutical grade products but also provide an option for rapid restoration of species, if found under threat.
    URI
    https://doi.org/10.1016/J.ALGAL.2018.02.032
    http://drs.nio.org/drs/handle/2264/7700
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