| Calanus
IBM overview |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Growth rate, G: |
||||||||||||||
| G = gmax * Food /
(ks + Food) |
||||||||||||||
| Where, gmax = b +
m*ln (T) |
||||||||||||||
| b and m are
empirically fit* |
||||||||||||||
| Development
rate, R: |
||||||||||||||
| R = Ω* a (T
+ b) -2.05 |
||||||||||||||
| a and b are
empirically fit |
||||||||||||||
| Where Ω is
a penalty function that decreases |
||||||||||||||
| development rate
at extremely low food levels |
||||||||||||||
| Mortality: |
||||||||||||||
| Each stage has a
fixed mortality rate |
||||||||||||||
| (decreasing
logarithmically by stage) |
||||||||||||||
| Copepods also
die if their age within stage is |
||||||||||||||
| greater than
that predicted at their minimum |
||||||||||||||
| allowable T |
||||||||||||||
| The model groupings |
| C5 |
| C5 |
| C4 |
| C1-3 |
| N4-6 |
| N3 |
| N1-2 |
|
|
| *Data for
empirically fit parameters from Campbell et al. (2001), Vidal (1980),
and/or |
|
| Peterson (1986), depending
on species |
|