12 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
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 sterilizing 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 ...
parameter
Fishing; Fish farming
A "constant" or numerical description of some property of a population (which may be real or imaginary). Cf. statistic.
peat
Fishing; Fish farming
This form of dried moss can be used as a filter material to soften water and make it more acidic.
pelagic
Fishing; Fish farming
Fish that spend most of their life swimming in the water column as opposed to resting on the bottom are known as pelagic species.
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