canned fish
The Spanish phrase 'pescado en conserva' translates to 'canned fish' in English. It refers to fish which has been processed, sealed in an airtight container such as a sealed tin can, and subjected to heat to kill bacteria, viruses and microorganisms. This process also often involves the use of brine, sauce, or oil as a preservative for increased shelf life. It can include various types of fish, including tuna, salmon, and sardines among others.
That lunch contains a can of canned fish.
In this sentence, 'pescado en conserva' is used to indicate the type of ingredient included in the meal. It is not used as a suffix in this case, but as a noun phrase that designates a canned fish.
My grandmother always stores canned fish in her kitchen.
This sentence makes use of 'pescado en conserva' to designate a type of food that the grandmother always keeps at home. Again, the term is used as a noun phrase within the sentence and not as a suffix.
Have you ever tried canned fish?
In this question, 'pescado en conserva' is used to refer to a type of food and to inquire about the listener's experience with it. It is used as the object of the sentence and not as a suffix.