Clams are bivalve mollusks that live in salt water, either in natural shoals or in farms. In Spain, the high-quality and quick-growing varieties known as "pullet carpet shell" and "grooved carpet shell" are the most commonly cultivated. They are canned in their own juice.
Spain is one of the leading producers and exporters of canned seafood, and current data is showing an upward trend. The regions of Galicia and Andalusia have been at the helm, steering the industry's development. Mussels, cockles, and clams from the Galician estuaries; melva and mackerel from the Andalusian coast; and anchovies and bonito from the Cantabrian coast.