Role of microalgae in aquaculture - Burapha chalee/subject/marine_tech/mt001_ آ  Role of

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  • 816204 Introduction to Marine Technology

    Role of microalgae in aquaculture

    Asist. Prof. Dr. Chalee Paibulkichakul

  • Aquaculture production of Thailand

  • Aquaculture value of Thailand

  • Emphasis of microalgae

     Pros  Source of natural products  Supply larvae feed

     Cons  Eutrophication  Harmful algae

  • Natural products

     Isochrysis galbana  Phaeodactylum tricornutum  Porphyridium cruentum  Produce polyunsaturated fatty acid in

    semicontinuous culture

  • Natural products

     Marine dinoflagellates are a rich source of compounds with intriguing structures and interesting biological activities.

     Dinoflagellates Amphidinium sp. : isolated a series of cytotoxic macrolides Amphidonolides B, C, G, H and N

     * Amphidonolides activity: - antitumor

  • Natural products

     Gambieric acid A has been isolated from marine dinoflagellate Gambierdiscus toxicus.

     properties: antifungal agent

  • Natural products

     Dunaliella – beta carotene

  • Natural products

     Haematococcus pluvialis  - astaxanthin

  • Natural products

  • Natural products

     Spirulina – gamma linoleic acid (C18)

  • Nutrition of microalgae

  • Nutrition of microalgae

  • Nutrition of microalgae

  • Nutrition of microalgae

  • Nutrition of microalgae

  • Microalgae for aquaculture

     Food source for aquatic animal larvae  Food source for abalone and bivalve  Nutritional enrichment

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

  • Microalgae for aquaculture

     Constraints on algae production  Not grow in highly selective environment  The climate often not optimal for growth  Requires expertise  Growth mainly in batch culture  Culture systems not inefficient  Cost production strongly affected by economics of

    scale

  • Microalgae for aquaculture

     Opportunities  Computer control/automation  Streamlining of scale-up  Reduction of the number of culture units  Continuous culture  Use of pre-mixed nutrients

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