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9. Modeling Eelgrass (Zostera marina L.) Distributions in Great Bay
Perc_Maturing*older_leaves*(lvs-per_shoot-4l ELSE
Perc_Maturing*older_leaves
oldest_leaves(tl = oldest_leaves(t-dt) + (Upgrade_to_6
+ L6_growth-Discarded_shoot""l * dt
INIT oldest_leaves = 0
INFLOWS:
Upgrade_to_6 = IF lvs-per_shoot < 5 THEN 0 ELSE IF
lvs-per_shoot < 6 THEN
Perc_Maturing*older_leaves*(lvs-per_shoot-4) ELSE
Perc_Maturing*older_leaves
L6_growth = oldest_leaves*L6_model
OUTFLOWS:
Discarded_shoot"" = IF lvs-per_shoot < 6 THEN
oldest_leaves ELSE Perc_Maturing*oldest_leaves
old_leaves(tl = old_leaves (t-dt) + (Upgrade_to_4 +
L4_growth-Upgrade_to_5-Discarded_shoot"l * dt
INIT old_leaves = 0
INFLOWS:
Upgrade_to_4 = IF lvs-per_shoot < 3 THEN 0 ELSE IF
lvs-per_shoot < 4 THEN
Perc_Maturing*medium_leaves*(lvs-per_shoot-2l ELSE
Perc_Maturing*medium_leaves
L4_growth = old_leaves*L4_model
OUTFLOWS:
Upgrade_to_5 = IF lvs-per_shoot <4 THEN 0 ELSE IF
lvs-per_shoot < 5 THEN
Perc_Maturing*old_leaves*(lvs-per_shoot-3l ELSE
Perc_Maturing*old_leaves
Discarded_shoot" = IF lvs-per_shoot < 4 THEN old_leaves
ELSE IF lvs-per_shoot < 5 THEN
Perc_Maturing*old_leaves*(5-lvs-per_shoot) ELSE 0
youngest_leaves(tl = youngest_leaves (t-dt) + (Ll_growth
+ New-Upgrade_to_2l * dt
INIT youngest_leaves = 0 .0001
INFLOWS :
Ll_growth = youngest_leaves*L1_model
New
init_weight-per_leaf_area
A2*