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Ecosystem approach to fishery management; management that takes into account the effects of fisheries on the ecosystem and the effects of the ecosystem on the fish stocksEcosystem approach to fishery management; management that takes into account the effects of fisheries on the ecosystem and the effects of the ecosystem on the fish stocks
Threshold on exploitation (catch, mortality, effort) that is consistent with a management strategy or international agreement (e.g. exploitation boundary consistent with precautionary approach)Threshold on exploitation (catch, mortality, effort) that is consistent with a management strategy or international agreement (e.g. exploitation boundary consistent with precautionary approach)
Distribution of fishing mortality over the age composition of the fish population, determined by the type of fishing gear, area and seasonal distribution of fishing, and the growth and migration of the fishDistribution of fishing mortality over the age composition of the fish population, determined by the type of fishing gear, area and seasonal distribution of fishing, and the growth and migration of the fish
Instantaneous Rate of Fishing Mortality; when fishing and natural mortality act concurrently, F is equal to the instantaneous total mortality rate (Z), multiplied by the ratio of fishing deaths to all deaths; expressed on an exponential scale: F=0.5 meansInstantaneous Rate of Fishing Mortality; when fishing and natural mortality act concurrently, F is equal to the instantaneous total mortality rate (Z), multiplied by the ratio of fishing deaths to all deaths; expressed on an exponential scale: F=0.5 means
Precautionary reference point for fishing mortality (over-defined age range)Precautionary reference point for fishing mortality (over-defined age range)
Limit reference point for fishing mortality (over-defined age range)Limit reference point for fishing mortality (over-defined age range)
Target fishing mortality in a management plan or management strategyTarget fishing mortality in a management plan or management strategy
Fishing mortality consistent with achieving Maximum Sustainable Yield (MSY)Fishing mortality consistent with achieving Maximum Sustainable Yield (MSY)
The fishing mortality rate at which the marginal yield-per-recruit (i.e. the increase in yield-per-recruit in weight for an increase in one unit of fishing mortality) is only ten percent of the marginal yield-per-recruit on the unexploited stock; fishing The fishing mortality rate at which the marginal yield-per-recruit (i.e. the increase in yield-per-recruit in weight for an increase in one unit of fishing mortality) is only ten percent of the marginal yield-per-recruit on the unexploited stock; fishing
Fishing mortality rate F corresponding to a SSB/R equal to the inverse of the 50th percentile of the observed R/SSBFishing mortality rate F corresponding to a SSB/R equal to the inverse of the 50th percentile of the observed R/SSB
Fishing mortality rate that maximizes equilibrium yield per recruit; Fmax is the F level often used to define growth overfishingFishing mortality rate that maximizes equilibrium yield per recruit; Fmax is the F level often used to define growth overfishing
F status quoF status quo

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