ECOPATH WITH ECOSIM_ A USER'S GUIDE _ Villy Christensen - Academia.edu.pdf

ECOPATH WITH ECOSIM: A USER'S GUIDE | Villy Christensen - Academia.edu

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ECOPATH WITH ECOSIM: A USER'S GUIDE

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ECOPATH WITH ECOSIM:

No fish is an island

4.5 Group information.........................................................................................................................................20 4.6 Other group manipulations (Edit menu)........................................................................................................22 4.6.1 Insert groups..................................................................................................................................................22 4.6.2 Delete groups ................................................................................................................................................22 4.7 Basic input.....................................................................................................................................................22 4.7.1 On the need for input parameters ..................................................................................................................23 4.7.2 Basic input menu...........................................................................................................................................23 4.7.3 Production.....................................................................................................................................................25 4.7.3.1 Total mortality catch curves ..........................................................................................................................26 4.7.3.2 Total mortality from sum of components......................................................................................................26 4.7.3.3 Total mortality from average length..............................................................................................................26 4.7.3.4 Production from empirical relationships .......................................................................................................26 4.7.4 Consumption .................................................................................................................................................27 4.7.5 Other mortality ..............................................................................................................................................28 4.7.6 Alternative input............................................................................................................................................28

4.7.7 Diet composition...........................................................................................................................................29 4.7.8 Detritus fate...................................................................................................................................................30 4.7.9 Migration.......................................................................................................................................................30 4.7.10 Representing movement of organisms across modeled area boundaries due to migration and ontogenetic

habitat shifts ..................................................................................................................................................31