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Summary

Abstract

Input data tables for the Ecopath with Ecosim Puako model

Description

EwE input data. Three tables. One table shows the biomass, vital rates and ecotrophic eficiency; table 2 shows the diet matrix; and table 3 shows the predator/prey vulnerabilities used in ecosim.

Entity Information

Entity Type
Spreadsheet

Data Attribute / Type Description
FunctGrp
VARCHAR2
Functional group; these are the groups of species aggregated based on diet, life history, ecological role or economic importance
No.
NUMBER
Functional group number
Group name
VARCHAR2
Functional group; these are the groups of species aggregated based on diet, life history, ecological role or economic importance
TL
NUMBER
Trophic Level of the functional group
B
NUMBER
Initial biomass of the functional group in metric tons per squared kilometer
P:B
NUMBER
Production per biomass ratio with unit per year
Q:B
NUMBER
Comsumption per biomass ratio with unit per year
EE
NUMBER
Ecotrophic efficiency, unitless and should be below 1
P/Q
NUMBER
Production to Consumption ratio which in general is between 0.1 and 0.3
DietMatrix
NUMBER
All rows are preys and all columns are predators. The numbers in the column headings correspond to the number in the row headings. So this table shows per column (predator) the diet composition (in of the prey (rows) items.
VulnerabilityMatrix
NUMBER
Just as in the DietMatrix data table, the rows represent the preys and functional group number and the columns represent the predators by functional group number. The values represent the vulnerability of that prey functional group to the predator. A high value represents a top-down control and a low value represents a bottom-up control.

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