From this you can calculate that fishing nets placed at a depth of 120 meters will require 12 hours to be completely hauled up. Catching living Rumphius 'slit shells depends upon the patience of fishermen and their willingness to sacrifice their own self-interest.
以此推算，放在海面下 120 公尺深的魚網，至少耗費 12 個小時才能完成起網，龍宮貝活體的捕獲，全靠漁人們無比的耐心與犧牲。