Fairy shrimp (Chirocephalus diaphanus) are delicate freshwater crustaceans that inhabit shallow, clean ponds and lagoons. They have a very low tolerance for hypoxia (low dissolved oxygen conditions).
Following the construction of a nearby holiday resort, untreated greywater containing high concentrations of phosphate-based detergents frequently drains into a local lagoon.
Explain how this discharge of phosphate-rich greywater can lead to a severe decline in the population of fairy shrimp in the lagoon.
