bed – n. the ground that is at the bottom of a sea, lake, etc.
lease – v. to rent out a place in return for money
plot – n. an area of land that has been measured and is considered as a unit
spawn – v. to produce or lay eggs in water
larvae –n. a very young form of life
aquaculture – n. the rearing of water animals or the cultivation of water plants for food
estuary – n. an area where a river flows into the sea