Background
Dolphins are a common by-catch in tuna fisheries, especially in the Eastern Tropical Pacific Ocean, as they commonly swim with schools of yellowfin tuna. The dolphins, who swim closer to the surface than tuna, may be used as an indicator of tuna presence. Labeling was originally intended to discourage fishing boats from netting dolphins with tuna.
Dolphins do not associate with Skipjack tuna and this species is most likely to be truly "dolphin safe". However, the species of tuna is not always mentioned on the can.
Read more about this topic: Dolphin Safe Label
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