Sterile
Ulva, which is a green alga, has the potential to grow all year round, therefore, this macroalga is expected to be a feed resource containing various nutrients such as proteins, amino acids, and minerals.
Ulva lactuca was selected from the“Marine Park”in Yokohama, and its growth rate (g-dry/m
2·d) was measured using a model reactor simulated the surface of the sea. In these experiments, the growth rate of
Ulva lactuca was found to be 15-20 gdry/m
2·d which is estimated to be 10 times greater than that in nature field. Based on these data, we newly designed a float type of efficient
Ulva lactuca production system. Fifty kg-dry/d of Ulva lactuca without containing foreign substances such as the sands and 1.9 kg-N/d are expected to be harvested when the float type system (60 m wide × 110 m long × 2 m deep) is used with enriched seawater.
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