Complex sentence: Also called wakasagi, "Hypomesus nipponensis" is an important food fish native to the lakes and estuaries of Hokkaido, Japan, although it has been introduced to other locations, including the San Francisco Delta of the United States.
Split into simpler sentences: Also called wakasagi, "Hypomesus nipponensis" is an important food fish native to the lakes and estuaries of Hokkaido, Japan. It has been introduced in other locations, including the San Francisco Delta of the United States.