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Fish farming
Of, or pertaining to the artificial mass cultivation of fish
Industry: Fishing
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Fish farming
year class
Fishing; Fish farming
Fish in a stock born in the same year. For example, the 1987 year class of cod includes all cod born in 1987, which would be age 1 in 1988. Occasionally, a stock produces a very small or very large ...
yield per recruit
Fishing; Fish farming
The expected lifetime yield per fish of a specific age (e.g., per age 2 individual). For a given exploitation pattern, rate of growth, and natural mortality, an expected equilibrium value of Y/R can ...
zeolite
Fishing; Fish farming
A naturally occurring ore which will absorb ammonia and soften water. It is only effective in fresh water.