- parental biomass
-
the weight of the adult spawning population of a species. Also called spawning stock biomass
Dictionary of ichthyology. 2009.
Dictionary of ichthyology. 2009.
parental biomass — The weight of the adult population of a species; e.g. the weight of all southern bluefin tuna 8 years and older … Fisheries — dictionary
stock-recruitment relationship — The relationship between the level of parental biomass and subsequent recruitment. Determination of this relationship is difficult and usually involves the study of population size age composition, growth and mortality rates … Fisheries — dictionary
survival ratio — ratio of recruits to spawners or parental biomass in a stock recruitment analysis. Changes in survival ratios indicate that the productivity of a stock is changing … 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
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