Photographer: Susana Gonzalez/Bloomberg
Photographer: Susana Gonzalez/Bloomberg

Big Fish, Small Can—Inside Mexico's Tuna Industry

An extension of a temporary ban on fishing for yellowfin, bigeye, bluefin, and skipjack tuna in the Mexican waters of the Pacific Ocean went into effect Sept. 29, in accordance with a tuna fishing treaty signed in June 2013, according to a notice in Mexico's Diario Oficial de la Federacion, which is similar to the U.S. Federal Register. The initial closure was based on a 2013 agreement with the Inter-American Tropical Tuna Commission, an international organization with more than 20 country members. Photographs by Susan Gonzalez for Bloomberg

A worker hoists tuna from the cold storage area on Grupo Pinsa fishing boat in Mazatlan.

Nets are used to transfer the tuna from a boat to the loading dock.

Workers lift tuna from the cold storage area into transportation boxes.

The tuna is sorted by size into boxes before transport to the Grupo Pinsa processing plant.

A worker at the plant gets prepared with protective equipment.

Frozen tuna exiting a cleaning machine.

The frozen tuna is cut with a bandsaw.

A frozen tuna, sliced down the middle. 

Frozen tuna steaks are selected and cleaned before final packaging at the plant.

A worker removes a rack of the steaks from a smoking oven.      

Workers clean tuna before placing them on a conveyor belt.

Smaller tuna is deboned manually.

After the cleaning process, pouches are filled manually by workers.

Cans of tuna are inspected as they move down a conveyor belt.