Changes between Version 1 and Version 2 of EwEugOtherProduction


Ignore:
Timestamp:
2010-02-05 15:43:01 (10 years ago)
Author:
varunr
Comment:

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  • EwEugOtherProduction

    v1 v2  
    2323'''Biomass accumulation''' 
    2424 
    25 Ecopath is not necessarily a steady-state model. If the biomass for a group is known, e.g., at the beginning of the year and at the beginning of the next year, the biomass accumulation (''BA'') can be calculated as the difference between these biomasses. ''BA'' is a production term that can be entered for all living groups (default is 0), but is calculated for detritus groups ([[Detritus fate.htm|Detritus fate]]). ''BA'' is a flow term, with a rate unit of, e.g., t / km² / year. The default value for ''BA'' is zero indicating no biomass accumulation. A negative value signifies biomass depletion (biomass decreased during period modelled). 
     25Ecopath is not necessarily a steady-state model. If the biomass for a group is known, e.g., at the beginning of the year and at the beginning of the next year, the biomass accumulation (''BA'') can be calculated as the difference between these biomasses. ''BA'' is a production term that can be entered for all living groups (default is 0), but is calculated for detritus groups ([wiki:EwEugDetritusFate Detritus fate]). ''BA'' is a flow term, with a rate unit of, e.g., t / km² / year. The default value for ''BA'' is zero indicating no biomass accumulation. A negative value signifies biomass depletion (biomass decreased during period modelled). 
    2626 
    2727If ''B, P/B, Q/B'' and ''EE'' are entered for a group, a prompt will ask during parameterization if you want to estimate ''BA''. If you answer yes to this question the ''BA'' will be calculated, overruling any ''BA'' you may have entered.