Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place to control fishing activity. However, catches have increased to record levels. Most of the yellowfin tuna catches in the western and central Pacific Ocean are by purse seining. This method is associated with bycatch of species such as sharks, turtles and marine mammals.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated January 2024

Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place to control fishing activity. However, catches have increased to record levels. Some of the yellowfin tuna catches in the western and central Pacific Ocean are by longlining. While longlining is unlikely to have habitat impacts, it can have a bycatch of highly vulnerable and endangered species, including sharks, turtles, and seabirds.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated: January 2024

Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place to control fishing activity. However, catches have increased to record levels. A small amount of yellowfin tuna in the west Pacific Ocean are caught by pole & line. This is a generally low-impact method.Rating last updated January 2024

Atlantic yellowfin tuna is not overfished and is not subject to overfishing. However, there is some uncertainty in this assessment, and recent catches have been above recommended levels, which could cause the stock to decline. Few appropriate management measures are in place. Management is not effective at controlling fishing pressure on this stock as catch limits have been exceeded in every year since 2015. Most yellowfin tuna from the Atlantic is caught by purse seining. This method is associated with bycatch of species such as sharks, turtles and marine mammals.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated December 2021.

Atlantic yellowfin tuna is not overfished and is not subject to overfishing. However, there is some uncertainty in this assessment, and recent catches have been above recommended levels, which could cause the stock to decline. Few appropriate management measures are in place. Management is not effective at controlling fishing pressure on this stock as catch limits have been exceeded in every year since 2015. Some yellowfin tuna in the Atlantic are caught by longlining. While longlining is unlikely to have habitat impacts, it can have a bycatch of highly vulnerable species such as sharks, turtles, and seabirds.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated December 2021.

Atlantic yellowfin tuna is not overfished and is not subject to overfishing. However, there is some uncertainty in this assessment, and recent catches have been above recommended levels, which could cause the stock to decline. Few appropriate management measures are in place. Management is not effective at controlling fishing pressure on this stock as catch limits have been exceeded in every year since 2015. Some yellowfin tuna in the Atlantic are caught by surface fisheries such as troll, handline, and pole & line. These are generally low-impact methods.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated December 2021.

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place. Catches are too high, and monitoring and enforcement needs to be improved. Some yellowfin tuna from the Indian Ocean is caught by purse seining. This method is associated with bycatch of species such as sharks, rays, and turtles.There are Fishery Improvement Projects in the Indian Ocean, aimed at improving the sustainability of yellowfin tuna in this area. It is not possible for them to address the key issues facing this fishery within their stated timescales. They therefore do not meet the criteria to be considered credible on the Good Fish Guide. As a result, these FIPs are not given an Improver rating, and instead are Fish to Avoid. We do not recommend sourcing from them.Rating last updated January 2023

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place. Catches are too high, and monitoring and enforcement needs to be improved. Some yellowfin catches from the Indian Ocean are by longline, which has a bycatch of highly vulnerable species such as sharks, turtles, and seabirds.There are Fishery Improvement Projects in the Indian Ocean, aimed at improving the sustainability of yellowfin tuna in this area. It is not possible for them to address the key issues facing this fishery within their stated timescales. They therefore do not meet the criteria to be considered credible on the Good Fish Guide. As a result, these FIPs are not given an Improver rating, and instead are Fish to Avoid. We do not recommend sourcing from them.Rating last updated January 2023

Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place. There is no overall catch limit, and catches continue to increase. However, MSC-certified fisheries are taking additional measures to control fishing activity. Some of the yellowfin tuna catches in the western and central Pacific Ocean are by longlining. Longlining can have a bycatch of highly vulnerable and endangered species, but MSC-certified fleets are taking steps to reduce these impacts. Rating last updated: January 2024

Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place. There is no overall catch limit, and catches continue to increase. However, MSC-certified fisheries are taking additional measures to control fishing activity.  Most of the yellowfin tuna catches in the western and central Pacific Ocean are by purse seining. This method can have a bycatch of highly vulnerable and endangered species, but MSC-certified fleets are taking steps to reduce these impacts. Rating last updated: January 2022

Yellowfin tuna in the western and central Pacific Ocean is not overfished or subject to overfishing. Some appropriate management measures are in place. There is no overall catch limit, and catches continue to increase. However, MSC-certified fisheries are taking additional measures to control fishing activity. A small amount of yellowfin tuna in the west Pacific Ocean are caught by pole & line. This is a generally low-impact method.Rating last updated January 2024

The population of yellowfin tuna in the Eastern Pacific Ocean is thought to be abundant, and fishing pressure is within sustainable limits. Few appropriate management measures are in place as there are no catch limits. A small amount of the yellowfin tuna catches in the Eastern Pacific Ocean are by longlining. Longlining in the SE Pacific is of particular concern as it is is one of the main causes of the decline in leatherback turtle in the area.Rating last updated: December 2022

The population of yellowfin tuna in the Eastern Pacific Ocean is thought to be abundant, and fishing pressure is within sustainable limits. Few appropriate management measures are in place as there are no catch limits. Most yellowfin tuna in the eastern pacific Ocean is caught by purse seining. This can bycatch vulnerable species like sharks and turtles.Rating last updated: December 2022

The population of yellowfin tuna in the Eastern Pacific Ocean is thought to be abundant, and fishing pressure is within sustainable limits. Few appropriate management measures are in place as there are no catch limits. Most yellowfin tuna in the eastern pacific Ocean is caught by purse seining on tuna-dolphin associations. This can cause dolphin deaths, and while mortality has reduced, it is still too high.Rating last updated: December 2022

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place for Indian Ocean yellowfin tuna. Stock rebuilding plans have been in place since 2016, but have been ineffective. Catches are too high, and monitoring and enforcement needs to be improved. Some yellowfin catches from the Indian Ocean are by longline. While longlining is unlikely to have habitat impacts, it can have a bycatch of highly vulnerable species such as sharks, turtles, and seabirds.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated January 2022.

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place for Indian Ocean yellowfin tuna. Stock rebuilding plans have been in place since 2016, but have been ineffective. Catches are too high, and monitoring and enforcement needs to be improved. Some yellowfin tuna from the Indian Ocean is caught by purse seining. This method is associated with bycatch of species such as sharks, rays, and turtles.Commercial buyers should establish what measures the flag state and fleet relating to their source is taking to reduce impacts to and improve reporting of interactions with vulnerable species. Large buyers should consider supporting such improvements. MCS also advocates specifying the need for vessels, in particular purse seiners, to register on the ISSF Proactive Vessel Register.Rating last updated January 2022.

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place for Indian Ocean yellowfin tuna. Stock rebuilding plans have been in place since 2016, but have been ineffective. Catches are too high, and monitoring and enforcement needs to be improved. Some Indian Ocean yellowfin tuna are caught by trolling. This is a low-impact method of fishing.Rating last updated January 2022.

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place for Indian Ocean yellowfin tuna. Stock rebuilding plans have been in place since 2016, but have been ineffective. Catches are too high, and monitoring and enforcement needs to be improved. A small amount of yellowfin tuna in the Indian Ocean are caught by pole & line. This is a generally low-impact method.Rating last updated January 2022.

The yellowfin tuna stock in the Indian Ocean is overfished and subject to overfishing. Few appropriate management measures are in place for Indian Ocean yellowfin tuna. Stock rebuilding plans have been in place since 2016, but have been ineffective. Catches are too high, and monitoring and enforcement needs to be improved. Some Indian Ocean yellowfin tuna are caught by handlining. This is a low-impact method of fishing.Rating last updated January 2022.