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Sampling stations of seawater for radiocesium measurement in 2014. Open circles and open circles with center dot denote stations for a deep hydrocast to a depth of 800 m and for surface sampling only, respectively. Water sampling stations in previous studies conducted in January–February 2012 (closed circles, [41]) and June–July 2012 (crosses, [30]) are also shown. The map was drawn using Ocean Data View software [43]
