Yellowfin Tuna, Indian Ocean, Troll/ pole and line

Indian Ocean yellowfin tuna has been scored a high risk. The biomass is too low and fishing mortality rates are too high for optimal harvesting and the stock is at risk of being outside limit reference levels. 

The management of yellowfin tuna has been scored a high risk. In 2016 managers adopted measures to address the current status of yellowfin tuna. These measures appear to not be working and catches have increased and not decreased since implementation. 

The bycatch in the yellowfin tuna Indian Ocean troll, pole and line and handline fisheries has been scored a moderate risk. This is because longline fisheries operating in the Indian Ocean incidentally capture many other species, including sea birds, sea turtles and elasmobranchs.

The habitat impact of the yellowfin tuna Indian Ocean pelagic troll, pole and line and handline fishery has been scored as very low risk. This because pelagic longline gears fish at the surface and do not come in contact with bottom habitats.