A fish fillet processor processes fish into a fillet. Fish processing starts from the time the fish is caught. Popular species processed include cod, hake, haddock, tuna, herring, mackerel, salmon and pollock.
Commercial fish processing is a global practice. Processing varies regionally in productivity, type of operation, yield and regulation. Approximately 90% of processed fish are oceanic fish. The remaining 10% are from conciliatory freshwater operations and aquacultural production. Most fish processing industries are near commercial fishing zones. In certain regions, fish are transported or exported for processing.