Measures pertaining to the fish inside the port at the Fukushima Daiichi Nuclear Power Station (progress of construction for main installation work for the net to prevent the fish from leaving at the east sea wall, and the commencement of re-cover of the seabed soil in units 1-4 intake open channel, etc.) Measures pertaining to the fish inside the port at the Fukushima Daiichi Nuclear Power Station (progress of construction for main installation work for the net to prevent the fish from leaving at the east sea wall, and the commencement of re-cover of the seabed soil in units 1-4 intake open channel, etc.)