Samenvatting

The main research question of this project was:Which of the four chosen algae is the most suitable for the rearing of Artemia, and ultimately Diadema antillarum larvae, at Van Hall Larenstein University of applied sciences? This question led to several sub questions which could in turn be operationalized to provide an answer to the main question. Phase 1How are different biomass values (mg/ml, cell count and optical density) correlated for each of the four algae? - What is the relationship between mg/ml, cell count and optical density for: Rhodomonas salina, Rhodomonas baltica, Nannochloropsis gaditana and Tetraselmis chuii? Which algae species is best maintainable over a period of 6 weeks? - Does the algae in question have practical issues that makes culturing more difficult for example quicker colony forming, susceptibility to grazer infestation, susceptibility to pollution by other algae? - Can the growth of the algae be maintained over 6 weeks? Phase 2 Which algae species provides the best development and survivability for Artemia? - Which of the two best algae species from phase 1 leads to the highest number of living Artemia at the end of the experiment? - Which of the two best algae species lead to most growth in Artemia?