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  blue diamond KOREA-US AQUACULTURE -> Korean aquaculture  ->Food organisms->Algal food
Algal food Zooplanktonic food

Microalgal Food Research 

Microalgal culture laboratory of West Sea Fisheries Institute of NFRDI is preserving useful microalgal strains for aquaculture.

◎ Purpose of Phytoplankton Strain Bank

The laboratory is operating a phytoplankton bank.
The bank is aiming at:
   ○ Securing nutritionally valued algal strains for indoor culture
      mollusks, including oysters, ark shells, and shrimps

   ○ Nutritional value increase of microalgae for shellfish and shrimp
      culture; DHA and EPA content increment of concentrated foods by
      the cold storage (4℃)

   ○ Development of optimal foods classed by culture species
     - Fermented foods for sea cucumber (Combination of phytoplankton,
       Bacillus sp., and powder of macro algae)
     - Functional foods for shellfish and shrimp (Mixture of probiotic
       bacteria and phytoplankton)

 ○ Supplying aqauculturists and aquaculture researchers with pure algal strains, and   
   ○ Supporting research scientists interested in the biology of phytoplankton
 ◎ Image of microalgae
 ○ Prymnesiophyceae

 Separation of individual cell
Separation of individual cell
 
      
 
 

Pavlova lutheri
Pavlova lutheri
Isochrysis galbana
Isochrysis galbana
     ○ Bacillariophyceae
 
 
Chaetoceros calcitrans
Chaetoceros calcitrans
Chaetoceros sp. Chaetoceros sp.
Skeletonema sp. Skeletonema sp.
 
 
Thalassiosira sp.
Thalassiosirasp.
Nitzschia sp.Nitzschia sp.
Stephanopyxis sp.Stephanopyxis sp.
 

   ○ Chlorophyceae and Prasinophyceae

 
Dunaliella sp.
Dunaliella sp.
Tetraselmis suecica Tetraselmis suecica
 

 
◎ Genetic Research of Microalgae

During continuous culture, microalgae can be easily contaminated by the other species or bacteria and also changed shape and biochemical composition. In particular the former is difficult for microscopic identification. A molecular method, RFLP (Restriction Fragment Length Polymorphism) analysis of 18S rDNA, was carried out to identify some useful marine algae in species and/or strain level in WSFRI, NFRDI. Because different products can be obtained with the different restriction enzymes, they can be used as finger prints with a specific DNA.
PCR-RFLP of 18S rDNA from 9 strains microalgae. The 18S rDNA was digested the restriction enzyme Hae Ⅲ.		 PCR-RFLP of 18S rDNA from 9 strains microalgae. The 18S rDNA was digested the restriction enzyme Hae Ⅲ.
PCR-RFLP of 18S rDNA from 9 strains microalgae. The 18S rDNA was digested the restriction enzyme Hae Ⅲ