NPZ-model/State-Variables.md

@@ -13,11 +13,11 @@ Dissolved inorganic nutrients (DIN) is the sum of NO<sub>2</sub>, NO<sub>3</sub>
 
 ```mermaid
 graph TD;
-  A-->B;
- DIN -- DINuptake --> Phyto
-  A-->C;
-  B-->D;
-  C-->D;
+  DIN -- DINuptake --> Phyto;
+  DIN -- DINupMPB --> MPB;
+Det -- Mineral --> DIN;
+  Shellfish -- DINprod --> DIN;
+  Zoo -- ZooExcr --> DIN;
 ```
 
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