This is the 8125th most frequent Catalan word.
crus
"Crus" in Catalan means "raw" or "uncooked."
The word 'crues' in this sentence describes the state of vegetables being uncooked.
Les verdures són cruixents i fresques quan estan crues.
Vegetables are crunchy and fresh when they are raw.
The word 'crua' here metaphorically refers to sincerity being unrefined or straightforward.
La meva sinceritat pot semblar crua, però sempre és honesta.
My sincerity can seem raw, but it is always honest.
In this context, 'crus' denotes the fish being in their uncooked state.