| year
class (or cohort) |
INDEX |
| 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 year
class which can be pivotal in determining stock abundance in later years. |
|
|
| yield-per-recruit |
INDEX |
| 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
be calculated for each level of F. |
|
|
|