1 Terms
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Fish farming
Of, or pertaining to the artificial mass cultivation of fish
Industry: Fishing
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Fish farming
Nitrate
Fishing; Fish farming
NO3, this is a product in the nitrogen cycle. It is not toxic, though at high levels can cause some distress. In a reef tank it should be kept as low as possible, under 10ppm. Fish only tanks can ...
Nitrification
Fishing; Fish farming
The process by which ammonia is changed to nitrite, then nitrate, and finally nitrogen gas. See nitrogen cycle.
Nitrite
Fishing; Fish farming
NO2, this is one of the steps in the nitrogen cycle. It is toxic to most creatures, and should be at un-measurable levels after a tank has cycled.
Nitrogen cycle
Fishing; Fish farming
The nitrogen cycle describes how organic wastes break down in the aquarium. Fish wastes naturally decompose into ammonia, which is highly toxic. Nitrosomonas bacteria process the ammonia into ...
Nominal catch
Fishing; Fish farming
The sum of the catches that are landed (expressed as live weight or equivalents). Nominal catches do not include unreported discards.
Optimum yield (OY)
Fishing; Fish farming
The yield from a fishery which provides the greatest overall benefit to the nation with particular reference to food production and recreational opportunities; it is based on MSY as modified by ...
Ozone
Fishing; Fish farming
A gas, O3, which is very reactive. It is used as a sterilising agent to kill bacteria and small organisms in the water. It is used in an ozone reactor or protein skimmer. It is important not to use ...
