Changes in the densities of 39 fish species were evaluated before and after the 2011 Great East Japan Earthquake off the Pacific coast of eastern Japan by using set net fisheries statistics of Miyagi Prefecture. The densities of brown hakeling, Pacific sand lance, Japanese rockfish, and black tonguefish decreased, whereas those of the Pacific cod, walleye pollock, John dory, red seabream, spotted knifejaw, Schlegel's black rockfish, sea robin, Japanese flounder, slime flounder, blue swimming

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... b, and North-pacific giant octopus increased. These results were not contradictory to the changes in species densities reported in previous studies that covered wider or deeper waters.