* What are you measuring?
* The weight of a whole salmon?
* The weight of a salmon fillet?
* The weight of a specific portion of salmon?
* How big is the salmon? Different sizes of salmon will have different weights.
For example:
* "How many grams are in a 1 pound salmon fillet?" This question is answerable. 1 pound is roughly 454 grams.
Please provide more details so I can help you!