Fisheries — dictionary. Aardward. 2004.
stock recruitment relationship — stock recruitment model. Abbreviated as SSR … Dictionary of ichthyology
stock recruitment model — a fishery model that predicts the amount of juvenile recruitment as a function of the parent stock. Also called stock recruitment relationship … Dictionary of ichthyology
SRR — stock recruitment relationship (the relationship between the level of parental biomass, e.g. spawning stock size, and subsequent recruitment level. Difficult to determine accurately) … Dictionary of ichthyology
B 20% B-virg — level of spawning stock corresponding to a fraction (here 20%) of the unexploited biomass. Virgin biomass is estimated as the point where the replacement line for F=0 intersects the stock recruitment relationship or as the biomass from a spawning … Dictionary of ichthyology
B 50% R — the level of spawning stock at which average recruitment is one half (50%) of the maximum of the underlying stock recruitment relationship … Dictionary of ichthyology
Fcrash — or FCRASH the fishing mortality rate corresponding to an equilibrium spawner per recruit (SPR) equal to the inverse of the survival ratio at the origin of the stock recruitment relationship. Used as a biological reference point. A stock exploited … Dictionary of ichthyology
Ft — Ft; FT Fcrash (the fishing mortality rate corresponding to an equilibrium spawner per recruit (SPR) equal to the inverse of the survival ratio at the origin of the stock recruitment relationship. Used as a biological reference point. A stock… … Dictionary of ichthyology
age-structured production model — a stock assessment programme based on a deterministic form of a stock recruitment relationship, with non equilibrium tuning of abundance indices. Abbreviated as ASPM … Dictionary of ichthyology
ASPM — age structured production model (a stock assessment programme based on a deterministic form of a stock recruitment relationship, with non equilibrium tuning of abundance indices) … Dictionary of ichthyology
biomass at MSY — the long term average biomass value expected if fishing at FMSY (the fishing mortality rate which, if applied constantly, would result in maximum sustainable yield. Can be estimated from simple biomass aggregated production models or from age… … Dictionary of ichthyology
