Bigeye can form either free-swimming schools or schools associated with floating objects. Juvenile bigeye will form schools with juvenile yellowfin and skipjack tunas.
Bigeye accounted for about 8% of the 4.8-million-tonne global tuna catch in 2021.
|Size (cm)||Weight (kg)||Age (yrs)|
The following four bigeye stocks are assessed and managed by the RFMOs:
Our Status of the Stocks report summarizes the status of bigeye tuna worldwide according to the most recent scientific assessments. The report includes:
It also reviews the management measures for bigeye that Regional Fisheries Management Organizations (RFMOs) have adopted.
Use our “Interactive Stock Status and Catch Tool” to visualize, download, and share data about bigeye tuna:
Our research and advocacy work aims to ensure, on a global level, that tuna resources are well managed and protected from overfishing.
An ISSF report uses the Marine Stewardship Council (MSC) scoring system to evaluate both the health and RFMO management of 23 tuna stocks worldwide, including bluefin.