diff --git a/src/components/forms/ResearchForm.tsx b/src/components/forms/ResearchForm.tsx
index ebefe57..0d09b68 100644
--- a/src/components/forms/ResearchForm.tsx
+++ b/src/components/forms/ResearchForm.tsx
@@ -129,6 +129,8 @@ const ResearchForm = () => {
         endAt: undefined,
         predatoryFishesRelativeAbundance: '',
         predatoryFishesRelativeBiomass: '',
+        totalBiomass: '',
+        totalFishesAbundance: '',
         averageWeight: '',
         valuableFishesRelativeBiomass: '',
         conditionIndex: '',
diff --git a/src/utils/types.ts b/src/utils/types.ts
index 8bd7d5a..657aebe 100644
--- a/src/utils/types.ts
+++ b/src/utils/types.ts
@@ -160,8 +160,8 @@ export interface Research {
     totalBiomass: string;
   };
   fishes?: ResearchFish[];
-  totalFishesAbundance?: number;
-  totalBiomass?: number;
+  totalFishesAbundance?: string;
+  totalBiomass?: string;
   tenant?: Tenant;
   user?: User;
   previous?: Research;