3 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
molecular adsorption pads
Fishing; Fish farming
These are polyester pads which have been chemically treated to absorb certain substances from the water. This form of chemical filtration is placed in a canister or power filter. Note that they ...
mortality rates
Fishing; Fish farming
Mortality rates are critical for determining the abundance of fish populations and the effects of harvesting strategies on yield and spawning potential from a stock. Fish abundance is a balance ...
natural mortality (M)
Fishing; Fish farming
Deaths in a fish stock caused by predation, pollution, senility, etc., but not fishing.
net increase (or decrease)
Fishing; Fish farming
New body substance elaborated in a stock, less the loss from all forms of mortality.
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.
