biological consequences of eutrophication Flashcards
4.17
1
Q
1st step?
A
excessive nutrients from fertilisers run-off into the land from water (such as NO3)
2
Q
2nd step?
A
aquatic plants flourish, growing rapidly
3
Q
3rd step?
A
algae also show rapid growth
4
Q
4th step?
A
algal bloom prevents sunlight from reaching aquatic plants
water level falls
5
Q
5th step?
A
decomposition rate increases. aerobic respiration of decomposers reduces dissolved oxygen further
6
Q
6th step?
A
death of organisms requiring dissolved oxygen in water
