Canned fish canned tuna is used for sandwiches, 22 percent for salads, and 15 percent for casseroles and dried, packaged meal mixes. Other fish that is canned includes cod, mackerel, herring, and pilchard (a type of sardine). Canned fish Canned fish are fish which have been processed, sealed in an airtight container such as a sealed tin can, and subjected to heat. Canning is a method of preserving food, and provides a typical shelf life ranging from one to five years. Fish have low acidity, levels at which microbes can flourish. From a public safety point of view, foods with low acidity
Skipjack shad was much more abundant in the Upper Mississippi River basin before it was impounded. Currently, the skipjack shad is most abundant in the Upper Mississippi River below the mouth of the Ohio River. They are known as an "early-run" species as they migrate to spawn in the early spring. The skipjack shad is restricted to the Gulf of Mexico and its drainage, in the United States. The Gulf of Mexico drainage includes the ACF (Apalachicola/Chattahoochee/Flint River) basin, the Mississippi basin, and the Rio Grande basin. Records indicate that this species was more abundant in the upper Mississippi River before it