Fiche terminologique pour :indice d'abondance

An abundance index can be specific to an area or to a segment of the population (e.g., large fish), or it can refer to abundance stock-wide; the index can reflect abundance in numbers or in weight (biomass). Most abundance indices currently used by the SCRS are based on standardized CPUE data, although fishery-independent abundance indices based on scientific surveys have also been used. Typically, abundance indices are in relative units (as opposed to measuring absolute abundance), and simply