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Sparre P Venema S C
q condition factor constant in lengthweight 2 6 3
a swept area effective path swept by a trawl 13
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Introduction to Tropical Fish Stock Assessment: Exercisesl
Per Sparre,S. C. Venema
Snippet view - 1999
age composition age group age-based assumed assumption average Bertalanffy plot Beverton and Holt Bhattacharya method biomass by-catch calculated Chapter codend column confidence limits considered corresponding CPUE data set ELEFAN example Exercise(s exploited exponential decay fish stock assessment fishing mortality fleet frequencies gear selection gill growth curve growth parameters Gulland and Holt Holt plot illustrated independent variable input data landing places length class length composition length group length-frequency sample linear regression linearized catch curve logistic curve manual maximum sustainable yield mean length mean value mesh modal progression analysis natural mortality normal distribution number caught number of fish number of survivors observations obtained Pauly population regression analysis Section selection curve selection ogive shown in Fig slope species spring cohort standard deviation Table Thompson and Bell total catch total mortality total number trawl Upeneus vittatus variance Virtual population analysis weight
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