Changes between Version 2 and Version 3 of EwEugProduction


Ignore:
Timestamp:
2010-01-28 14:51:31 (9 years ago)
Author:
varunr
Comment:

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  • EwEugProduction

    v2 v3  
    1313Production rate is the sum of natural mortality (''M = M0'' + ''M2'') and fishing mortality (''F''), i.e., ''Z'' = ''M'' + ''F''. In the absence of catch-at-age data from an unexploited population, natural mortality for finfish can be estimated from an empirical relationship (Pauly, 1980) linking ''M'', two parameters of the von Bertalanffy Growth Function (VBGF) and mean environmental temperature, i.e., 
    1414 
    15 ../Resources/Images/08000016.png''' Eq. 16''' 
     15[[Image(wiki:EwEugImages:08000016.png)]] 
     16 Eq. 16''' 
    1617 
    1718where, ''M'' is the natural mortality (/year), ''K'' is the curvature parameter of the VBGF (/year), ''L'',,''∞'',, is the asymptotic length (total length, cm), and ''Tc'' is the mean habitat (water) temperature, in °C .