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STATUS of the WORLD FISHERIES for TUNA: October 2019

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STATUS of the WORLD FISHERIES for TUNA: October 2019 ISSF Technical Report 2019-12 STATUS OF THE WORLD FISHERIES FOR TUNA: October 2019 © ISSF (2012) Photo: Jeff Muir ISSF / FebruaryOctober 2019 2017 Suggested citation: ISSF. 2019. Status of the world fisheries for tuna. Oct. 2019. ISSF Technical Report 2019-12. International Seafood Sustainability Foundation, Washington, D.C., USA. Topic Categories: Tuna stock status Table of Contents Executive Summary .................................................................................................... 7 Introduction .............................................................................................................. 10 Purpose ............................................................................................................... 10 Ratings methodology............................................................................................... 11 Color Ratings Decision Table ............................................................................... 12 Management status ........................................................................................... 13 Major commercial tunas ........................................................................................... 13 Albacore Tuna .................................................................................................. 13 Bigeye Tuna .................................................................................................... 15 Atlantic Bluefin Tuna .......................................................................................... 16 Pacific Bluefin Tuna ........................................................................................... 17 Southern Bluefin Tuna........................................................................................ 18 Skipjack Tuna .................................................................................................. 19 Yellowfin Tuna ................................................................................................. 20 Global summary of catches ....................................................................................... 21 Additional resources ............................................................................................... 22 STOCKS IN THE EASTERN PACIFIC OCEAN .................................................................. 23 EPO Bigeye Tuna ................................................................................................... 24 Stock Assessment ............................................................................................. 24 Management .................................................................................................... 25 Summary ........................................................................................................ 27 EPO Yellowfin Tuna ................................................................................................ 28 Stock Assessment ............................................................................................. 28 Management .................................................................................................... 29 Summary ........................................................................................................ 31 EPO Skipjack Tuna ................................................................................................. 32 Stock Assessment ............................................................................................. 32 Management .................................................................................................... 32 ISSF Technical Report – 2019-12 Page 2 / 113 Summary ........................................................................................................ 34 STOCKS IN THE WESTERN & CENTRAL PACIFIC OCEAN ................................................ 35 WCPO Bigeye Tuna ................................................................................................ 36 Stock Assessment ............................................................................................. 36 Management .................................................................................................... 37 Summary ........................................................................................................ 39 WCPO Yellowfin Tuna ............................................................................................. 40 Stock Assessment ............................................................................................. 40 Management .................................................................................................... 41 Summary ........................................................................................................ 43 WCPO Skipjack Tuna .............................................................................................. 44 Stock Assessment ............................................................................................. 44 Management .................................................................................................... 45 Summary ........................................................................................................ 46 PACIFIC-WIDE STOCKS .............................................................................................. 47 PO North Pacific Albacore ........................................................................................ 47 Stock Assessment ............................................................................................. 48 Management .................................................................................................... 48 Summary ........................................................................................................ 49 PO South Pacific Albacore........................................................................................ 50 Stock Assessment ............................................................................................. 50 Management .................................................................................................... 51 Summary ........................................................................................................ 52 PO Pacific Bluefin Tuna ........................................................................................... 53 Stock Assessment ............................................................................................. 53 Management .................................................................................................... 54 Summary ........................................................................................................ 55 STOCKS IN THE ATLANTIC OCEAN .............................................................................. 56 AO Bigeye Tuna ..................................................................................................... 57 Stock Assessment ............................................................................................. 57 Management .................................................................................................... 58 ISSF Technical Report – 2019-12 Page 3 / 113 Summary ........................................................................................................ 59 AO Yellowfin Tuna .................................................................................................. 60 Stock Assessment ............................................................................................. 60 Management .................................................................................................... 61 Summary ........................................................................................................ 62 AO Eastern Skipjack Tuna ........................................................................................ 63 Stock Assessment ............................................................................................. 63 Management .................................................................................................... 63 Summary ........................................................................................................ 64 AO Western Skipjack Tuna ....................................................................................... 65 Stock Assessment ............................................................................................. 65 Management .................................................................................................... 66 Summary ........................................................................................................ 66 AO Northern Albacore Tuna ...................................................................................... 67 Stock Assessment ............................................................................................. 67 Management .................................................................................................... 68 Summary ........................................................................................................ 69 AO Southern Albacore Tuna ..................................................................................... 70 Stock Assessment ............................................................................................. 70 Management ...................................................................................................
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