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Southern Bluefin Tuna are blue-black on top, with a silver-white underside. Adults have yellow finlets and caudal keels. They can grow to a maximum length of 215 cm. 
 
 
 
Southern Bluefin Tuna have a maximum age of at least 30 years. They mature between 8-12 years old. 
 
 
 
Southern Bluefin Tuna are found around the South Island and along the east coast, with few fish being found north of 34 °S. They are usually found at depths down to 40 m, with occasional dives as deep as 800 m.  
 
             
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 Key statistics 
	
		
	
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			| 1 Reported commercial catch is calculated for the 12 month period to 30/09/2026 | 
		 
		
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			| 2 Quota value and exports are calculated pro-rata to reported commercial catch for the 12 month period to 30/09/2026 | 
		 
	 
 
             
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