role of microalgae in aquaculture - burapha...
TRANSCRIPT
816204 Introduction to Marine Technology
Role of microalgae in aquaculture
Asist. Prof. Dr. Chalee Paibulkichakul
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
Microalgae for aquaculture
Food source for aquatic animal larvae Food source for abalone and bivalve Nutritional enrichment
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