Is there a difference in the taste between fresh water and ocean perch?

It sounds like you might be mixing up two different types of fish. "Ocean perch" is actually a common name for a variety of fish, including:

* Redfish (also known as Red Snapper): These are saltwater fish with a firm, flaky texture and a sweet, mild flavor.

* Ocean Perch (also known as Rockfish): These are also saltwater fish, but they come in many varieties with varying flavors. Some can be mild, others have a slightly stronger, "fishy" taste.

Freshwater perch is a completely different type of fish found in lakes and rivers. It's generally a smaller fish with a milder, slightly sweet flavor that some describe as "nutty".

Here's the breakdown:

* Freshwater perch: Milder, slightly sweet, sometimes described as "nutty".

* Saltwater Ocean Perch (Red Snapper): Sweet, mild, and often described as "firm" and "flaky".

* Saltwater Ocean Perch (Rockfish): Flavor varies depending on the species. Some can be mild, others have a stronger, "fishy" taste.

So, yes, there is a difference in taste between freshwater perch and saltwater ocean perch. However, the specific taste of the saltwater ocean perch can vary greatly depending on the exact species.