They process a great quantity of organic matter as nymphs and transfer a lot of phosphates and nitrates to terrestrial environments when they emerge from the water, thus helping to remove pollutants from aqueous systems.
Procesan unha gran cantidade de materia orgánica cando son ninfas e transfiren moitos fosfatos e nitratos a ambientes terrestres cando emerxen da auga, axudando a eliminar os contaminantes dos sistemas acuáticos.