Eutrophication is a leading cause of impairment ... However, the biomass of planktivorous fish is often positively related to nutrient levels and ecosystem productivity. Piscivorous fishes ...

Eutrophication is a leading cause of impairment ... However, the biomass of planktivorous fish is often positively related to nutrient levels and ecosystem productivity. Piscivorous fishes ...

One of Ireland’s biggest and best-known lagoons has become so polluted it would take “millions of euro” to reverse it, the ...

Mercury compounds were used until quite recently to make insecticides (chemicals that kill the insects that damage ... When the plankton are eaten by small fish, the mercury they contain stays ...