Changes between Version 12 and Version 13 of EwEugMortalityForaPreyIsConsumptionForaPredator


Ignore:
Timestamp:
2010-11-24 01:10:00 (9 years ago)
Author:
shermanl
Comment:

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  • EwEugMortalityForaPreyIsConsumptionForaPredator

    v12 v13  
    4747Of the terms in Eq. 2.3, the production rate, ''P,,i,,'', is calculated as the product of ''B,,i,,'', the biomass of (''i'') and ''P,,i,,/B,,i,,'', the production/biomass ratio for group (''i''). The ''P,,i,,/B,,i,,'' rate under most conditions corresponds to the total mortality rate, ''Z'', see Allen (1971), commonly estimated as part of fishery stock assessments. The 'other mortality' is a catch-all term including all mortality not elsewhere included, e.g., mortality due to diseases or old age, and is internally computed from, 
    4848 
    49 ''M0,,i,, = P,,i,,'' ^.^ ''(''1'' ''EE,,i,,'')'' ''' Eq. 9''' 
     49''M0,,i,, = P,,i,,'' ^.^ ''(''1'' - ''EE,,i,,'')'' ''' Eq. 9''' 
    5050 
    5151where ''EE,,i,,'' is called the 'ecotrophic efficiency' of (''i''), and can be described as the proportion of the production that is utilized in the system. The production term describing predation mortality, ''M2'', serves to link predators and prey as,