fish stock
121native stock — an indigenous stock of fish that has not been substantially affected by genetic interactions with non native stocks or by other factors, and is still present in all or part of its original range …
122over stock — to stock with fish in excess of the carrying capacity of the water body …
123transboundary stock — a stock of fish that migrates across international boundaries or other jurisdictional boundaries …
124usable stock — the number or weight of all fish in a stock that lie within the range of sizes customarily considered usable or so designated by law (Ricker, 1975). Also called standing crop …
125spawning stock biomass — The total weight of all mature fish in a population …
126spawning stock biomass — (SSB) The total weight of all sexually mature fish in the population. This quantity depends on year class abundance, the exploitation pattern, the rate of growth, fishing and natural mortality rates, the onset of sexual maturity and environmental …
127utilized stock — (utilized population) The part, by number, of the fish alive at a given time, which will be caught in future …
128spawning stock biomass — (SSB) The total weight of all sexually mature fish in the population. This quantity depends on year class abundance, the exploitation pattern, the rate of growth, fishing and natural mortality rates, the onset of sexual maturity and environmental …