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Which Fish?

With fish stocks under pressure, which are okay to eat?

  1. yesAnchovy (Atlantic)
  2. noAnchovy (Other)
  3. yesArctic Char
  4. yesBarramundi (US/Europe/Australia)
  5. yesBarramundi (Closed Production)
  6. noBarramundi (Other)
  7. noBream (Organic Farmed Gilthead Bream)
  8. noBream (Other)
  9. yesBrown Crab
  10. yesCatfish
  11. noClam (Ocean Quahog)
  12. yesClam (Other)
  13. noCockle (Dredged)
  14. yesCockle (Hand Gathered)
  15. noCod
  16. yesColey/Saithe (Iceland)
  17. noColey/Saithe (Other)
  18. yesCrayfish (US)
  19. noCrayfish (Other)
  20. noDab
  21. noDogfish
    high mercury
  22. noEel
  23. yesEuropean Perch
  24. noFlounder
  25. noGrenadier/Hoki/Whiptail
  26. yesGurnard
  27. noHaddock
  28. yesHerring (North Sea)
  29. noHerring (Other)
  30. noJohn Dory
  31. yesKing Crab (US)
  32. noKing Crab (Other)
  33. yesKing Prawn (Organic Farmed)
  34. noKing Prawn (Other Farmed)
  35. noKing Prawn (Wild Caught)
  36. yesLobster (Mexican and European)
    high mercury
  37. noLobster (Other)
    high mercury
  38. yesMackerel
  39. yesMahi-Mahi/Dolphinfish
  40. noMarlin
    high mercury
  41. noMonkfish
    high mercury
  42. yesMussels
  43. yesNorthern Prawn
  44. noOrange Roughy/Slimehead
    high mercury
  45. yesOysters
  46. yesPangasius (Certifié GlobalGAP/ASC)
  47. noPangasius (Other)
  48. yesPink Shrimp (Alaska and Canada)
  49. yesPink Shrimp (MSC Certified)
  50. noPink Shrimp (Other)
  51. noPlaice
  52. yesPollock/Pollack
  53. yesPouting/Bib
  54. noRay
  55. noRazor Clam
  56. yesSalmon (Organic Farmed)
  57. noSalmon (Coho / Silver Salmon US/Canadian Farmed)
  58. yesSalmon (Alaskan)
  59. noSalmon (Other)
  60. noSardine (Mediterranean)
  61. yesSardine (Other)
  62. yesSeabass (Farmed with Recirculation System)
    high mercury
  63. noSeabass (Other)
    high mercury
  64. noShark
    high mercury
  65. noSkate
    high mercury
  66. noSnapper
    high mercury
  67. yesSole (MSC Certified)
  68. yesSole (Pacific)
  69. noSole (Other)
  70. yesSpider Crab
  71. noSpiny Lobster (Nicaragua, Honduras, Brazil)
  72. yesSpiny Lobster (Other)
  73. noSquid (Calamari from India, China, Thailand)
  74. yesSquid (Other)
  75. yesStone Crab
  76. yesStriped Bass
    high mercury
  77. yesSturgeon / Caviar (Farmed)
  78. noSturgeon / Caviar (Wild Caught)
  79. yesSwordfish (Harpoon Caught)
    high mercury
  80. noSwordfish (Other)
    high mercury
  81. yesTiger Prawn (Organic, ASC or GlobalGAP Certified)
  82. noTiger Prawn (Other Farmed)
  83. noTiger Prawn (Wild Caught)
  84. yesTilapia
  85. yesTrout (Rainbow Trout)
  86. noTrout (Other)
  87. yesTuna (Troll/Pole-and-Line Pacific Skipjack, Yellowfin and Albacore)
    high mercury
  88. noTuna (Other)
    high mercury
  89. yesTurbot (Farmed)
  90. noTurbot (Wild Caught)
  91. yesWalleye (US)
    high mercury
  92. yesYellow Perch (US)
    high mercury
  93. yesZander / Pike-Perch


  1. Monterey Bay Aquarium
  2. Marine Conservation Society
  3. Greenpeace
  4. Wikipedia
  5. FDA Mercury Table

Information was compiled from four main sources: the Monterey Bay Aquarium, the Marine Conservation Society, FishWatch, and the Greenpeace Red List. Individual entries have lists of sources, and I have aimed to reach a verdict solely based on the information contained in the sources. MCS ratings of 1-2 are considered "sustainable", and a rating of 3 is acceptable if other sources label the fish as sustainable.

Where there was serious contradiction, or the differences between sustainable and unsustainable sources of a fish was too involved, I have erred on the side of caution.

Mercury information is taken from the FDA Mercury table. Fish with a mean mercury PPM of less than 0.1 are considered low in mercury.

With some fish labeled unsustainable there will be exceptions where you can source them sustainably from specific places. To highlight these sources and mention updates, I've started a twitter stream at @which_fish.

Project and data collation by David Stark
Design inspired by Mike
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Raw data in JSON and as a spreadsheet. Feel free to use.

Disclaimer: sustainability data is simplified for ease of use, and may contain inaccuracies.
Contact me with suggestions/corrections.