Assertion: ammonia | /r/HasProperty | excreted by fish
Facets:
value: immediately
type: MANNER
value: through the gills
type: MANNER
value: in trace
type: LOCATION
Source sentences:
text: Ammonia is the principal waste product excreted by fish.
text: Ammonia is excreted by fish mainly through the gills and also in trace amounts through urine.
text: If the ammonia excreted by fish were allowed to accumulate it would soon kill the fish.
text: In aquaponics systems, however, the ammonia excreted by fish is removed by nitrifying bacteria that transform ammonia into nitrate nitrogen in a two-step process known as nitrification.
text: Because ammonia is toxic, it is excreted immediately by fish, converted into uric acid by birds, and converted into urea by mammals.
text: Most of the ammonia excreted by fish is taken up by algae, so anything that increases algal growth will increase ammonia uptake.
text: Therefore, at a given feeding rate, deeper ponds should have lower ammonia concentrations because there is more water to dilute the ammonia excreted by fish.