Introduction to Tropical Fish Stock Assessment

age group age-based age/length assumed assumption Beverton and Holt Bhattacharya method biomass by-catch calculated codend column confidence limits considered constant CPUE ELEFAN example exploited exponential decay fish stock assessment fishing grounds fishing mortality fleet frequencies gear selection gill gill net growth curve growth parameters Gulland and Holt Holt plot illustrated input data landing places length class length composition length group length-frequency sample linear regression linearized catch curve logistic curve maximum maximum sustainable yield mean length mesh migration modal progression analysis natural mortality Nemipterus marginatus normal distribution number caught number of fish number of survivors obtained Pauly population regression analysis Section selection curve selection ogive slope Sparre spawning species spring cohort standard deviation Table Thompson and Bell total catch total mortality total number trawl Upeneus vittatus variable variance virtual population analysis weight yield per recruit