The results of the survey also show that livelihood based on
aquaculture are less widespread than anticipated, despite the fact
that there are many aquaculture ponds in the Yellow River delta,
especially to the east of Dongying-Kenli (Area 3 in Fig. 1). There
were several migrant houses in these large aquaculture areas,
which could suggest that aquaculture is based on temporary
(migrant) labor and is largely done on an industrial scale.