For this same reason, the lakes are a bit "fragile" (low flush rates, low nutrient loads, etc.).

This increased nutrient load supports an increased biomass within the system.

The river's other two largest contributors, point sources (industrial, sewage, etc.) and the declining (24%) agricultural areas, contribute less of the nutrient load.

In 2010, a study revealed that farms contribute disproportionately to nutrient loads.

These additional nutrient loads create further problems after the next full circulation.

Federal officials went to investigate and found that an underwater pipe from the bathhouse was leaking, increasing the nutrient load and the growth of algae.

They are used in remote areas where use of septic tanks is limited, usually to reduce nutrient loads in lakes.

But, reducing the nutrient load is a bit difficult, owing to the increase in human population with its direct and indirect effects.

Plants must also be adapted to sandy saline soils, with extremely low nutrient loads, and low water holding capacity.

The Helsinki Commission has a programme for action to reduce nutrient loads.