Yellowfin Tuna are found right across all three major oceans. Unlike bluefin they are super fast growing so the oceans should be chockers

Yellowfin Tuna - American Oceans

Multiple lines of evidence highlight the dire straits of yellowfin tuna in the Indian Ocean. - ScienceDirect

Species Profile: Yellowfin Tuna

Comparative Influence of Ocean Conditions on Yellowfin and Atlantic Bluefin Tuna Catch from Longlines in the Gulf of Mexico

Oceanswell - Did you know that there are around 15 species

Bluefin vs. Yellowfin Tuna: Looks, Taste, and More

Yellowfin tuna fact sheet - Azores Whales

Yellowfin Tuna, NatureRules1 Wiki

Yellowfin Tuna - American Oceans

Species Profile: Yellowfin Tuna

Frontiers Ocean Futures for the World's Largest Yellowfin Tuna Population Under the Combined Effects of Ocean Warming and Acidification

Bluefin vs. Yellowfin Tuna: Looks, Taste, and More

Comparative Influence of Ocean Conditions on Yellowfin and Atlantic Bluefin Tuna Catch from Longlines in the Gulf of Mexico