UK-based Marine Conservation Society’s Good Fish Guide uses scientific information from reputable and peer-reviewed sources to generate ratings for over 140 different species. Wild capture ratings are reviewed annually and farmed ratings are reviewed every three years, and updated ratings are released on a biannual basis. Rating updates from 2023 can be found here.
Winter
| Species Name | Origin | Method | Old GFG Rating | New GFG Rating |
| Albacore Tuna | Atlantic Ocean - North | Longline |  |
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| Pole & Line |  |
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| Troll | |
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| Pelagic Trawl | |
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| Atlantic Ocean - North (MSC) | Pole & Line |  |
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| Troll | |
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| Pacific Ocean - North | Longline | |
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| Pole & Line | |
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| Troll | |
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| Pacific Ocean - North (MSC) | Pole & Line | |
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| Atlantic Bluefin Tuna | United Kingdom - Cornwall | Otter Trawl |  |
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| Gillnet | |
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| Purse Seine | |
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| Handline |  |
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| Atlantic Cod | Greenland - West (North) | Fish Trap | UNDER REVIEW |  |
| Greenland - West (South) | Fish Trap | |
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| North Sea, Eastern Channel, Skagerrak (FIP) | Otter Trawl | |
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| North Sea, Eastern Channel, Skagerrak | Gillnet | |
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| West of Scotland | Otter Trawl | |
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| Atlantic Ocean - Northern Shelf (Northwestern substock) | Otter Trawl | |
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| Atlantic Ocean - Northern Shelf (Southern substock) | Otter Trawl | |
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| Atlantic Ocean - Northern Shelf (Viking substock) | Otter Trawl | |
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| Ballan Wrasse | United Kingdom - Cornwall | Gillnet | |
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| Blonde Ray | North Sea (Central and South), Eastern Channel | Beam Trawl | |
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| North Sea (North) and West of Scotland | Beam Trawl | |
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| Otter Trawl | |
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| Blue Shark | Atlantic Ocean - North | Longine | |
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| United Kingdom - Cornwall | Longline | |
UNDER REVIEW | |
| Pole & Line | |
UNDER REVIEW | ||
| Blue Skate | North Sea and Skagerrak, Celtic Sea and West of Scotland | Gillnet | |
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| Beam Trawl | |
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| Otter Trawl | |
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| Brown Crab | Isle of Man | Pot/Trap/Creel | |
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| Northern Ireland | Pot/Trap/Creel | |
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| Common Periwinkle | United Kingdom - England (Northumberland IFCA District | Hand-gathering (Shore) | |
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| Atlantic Ocean - Northeast | Mechanical Harvesting | UNDER REVEW | |
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| United Kingdom - Scotland, Northern Ireland, Isle of Man, North and West Wales, Isles of Scilly, Southeast and Eastern England (excluding Northumberland) | Hand-gathering (Shore) | UNDER REVIEW | |
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| United Kingdom - Jersey, South Wales, Cornwall, Devon & Severn, Southern and North Western IFCA Districts (excluding Northumberland) | Hand-gathering (Shore) | |
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| Crawfish | United Kingdom - Cornwall | Diving | |
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| Gillnet | |
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| Pot/Trap/Creel | |
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| Cuckoo Ray | North Sea & Skagerrak and Kattegat | Otter Trawl | |
UNDER REVIEW |
| Dab | United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| European Lobster | Isle of Man | Pot/Trap/Creel | |
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| Northern Ireland | Pot/Trap/Creel | |
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| Flapper Skate | North Sea and Skagerrak, Celtic Sea and West of Scotland | Gillnet | |
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| Beam Trawl | |
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| Otter Trawl | |
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| Gilthead Bream | United Kingdom - Cornwall | Handline | |
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| Gillnet | |
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| Grey Mullet | North Sea, English Channel | Gillnet | |
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| Grouper | Worldwide | Handline | |
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| Gillnet | |
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| Pot/Trap/Creel | |
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| Harpoon | |
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| Haddock | Celtic Seas (Southern), English Channel (West) | Beam Trawl | |
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| Otter Trawl | |
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| United Kingdom - Rockall (MSC) | Otter Trawl | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Horse Mackerel | Norwegian Sea, North Sea (North), Celtic Seas, Cantabrian Sea, English Channel (South), Bay of Biscay | Pelagic Trawl | |
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| Purse Seine | |
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| Skagerrak and Kattegat, North Sea (Central and South), English Channel (East) | Pelagic Trawl | |
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| King Scallop | Irish Sea (FIP) | Dredge |  |
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| Northern Ireland (FIP) | Dredge | |
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| Scotland (East Coast 0-3nm) (FIP) | Dredge | |
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| Scotland (East Coast 3-12nm) (FIP) | Dredge | |
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| Scotland (Northeast & Orkney) | Diving | |
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| Scotland (Northeast & Orkney 0-3nm) (FIP) | Dredge | |
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| Scotland (Northeast & Orkney 3-12nm) (FIP) | Dredge | |
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| Scotland (Shetland 0-6nm) (MSC) | Dredge | |
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| Scotland (Shetland 6-12nm) | Dredge | |
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| Scotland (West Coast) | Diving | |
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| Scotland (West Coast 0-3nm) (FIP) | Dredge | |
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| Scotland (West Coast 3-12nm) (FIP) | Dredge | |
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| United Kingdom - Wales (FIP) | Dredge | |
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| United Kingdom - England (Bristol Channel - Inshore) | Dredge | |
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| United Kingdom (Cornwall IFCA District) (FIP) | Dredge | |
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| United Kingdom (Cornwall IFCA District) | Diving | |
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| United Kingdom - Cornwall (FIP) | Dredge | |
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| United Kingdom - Cornwall | Dredge | |
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| Lesser Spotted Dogfish | North Sea, Skagerrak and Kattegat, Eastern Channel | Beam Trawl | |
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| Otter Trawl | |
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| West of Scotland, Irish Sea, Celtic Sea (South) | Beam Trawl | |
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| Otter Trawl | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Longnosed Skate | Atlantic Ocean - Northeast | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Megrim | United Kingdom - Rockall | Otter Trawl | |
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| Nursehound | English Channel and Celtic Seas | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| United Kingdom - Cornwall | Otter Trawl | |
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| Gillnet | |
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| Pot/Trap/Creel | |
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| Pouting | Celtic Seas and English Channel | Beam Trawl | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Razor Clam | United Kingdom - Scotland | Electrical Fishing | UNDER REVIEW | |
| Red Gurnard | Atlantic Ocean - Northeast | Otter Trawl | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Red Mullet | West of Scotland, Bay of Biscay, Celtic Sea (South), Atlantic Iberian Waters | Otter Trawl | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Sardine | Bay of Biscay | Pelagic Trawl | |
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| Purse Seine | |
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| Cantabrian Sea and Atlantic Iberian Waters | Purse Seine | |
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| Celtic Sea (South) and English Channel | Pelagic Trawl | |
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| Purse Seine | |
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| United Kingdom - Cornwall (MSC) | Purse Seine | |
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| Scampi/Langoustine | Aran, Galway Bay and Slyne Head (FIP) | Otter Trawl | |
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| Botney Cut to Silver Pit (FIP) | Otter Trawl | |
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| Celtic Sea (The Smalls) (FIP) | Otter Trawl | |
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| Devil's Hole (FIP) | Otter Trawl | |
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| Farn Deeps (FIP) | Otter Trawl | |
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| Firth of Clyde and Sound of Jura (FIP) | Otter Trawl | |
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| Pot/Trap/Creel | |
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| Firth of Forth (FIP) | Otter Trawl | |
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| Fladen Ground (FIP) | Otter Trawl | |
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| Horn's Reef | Otter Trawl | |
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| Ireland (Southwest) and Southeast Coast (FIP) | Otter Trawl | |
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| Irish Sea - East (FIP) | Otter Trawl | |
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| Irish Sea - West (FIP) | Otter Trawl | |
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| Labadie, Jones and Cockburn (FIP) | Otter Trawl | |
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| Moray Firth (FIP) | Otter Trawl | |
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| North Minch (FIP) | Otter Trawl | |
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| Pot/Trap/Creel | |
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| Norwegian Deep | Otter Trawl | |
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| Noup (FIP) | Otter Trawl | |
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| Porcupine Bank (FIP) | Otter Trawl | |
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| Skagerrak and Kattegat | Otter Trawl | |
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| Pot/Trap/Creel | |
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| South Minch (FIP) | Otter Trawl | |
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| Pot/Trap/Creel | |
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| Skipjack Tuna | Indian Ocean | Pole & Line | |
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| Gillnet | |
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| Purse Seine (Floating Object) | |
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| Purse Seine (Unassociated) | |
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| Indian Ocean (MSC) | Pole & Line | |
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| Purse Seine (Floating Object) | |
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| Purse Seine (Unassociated) | |
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| Southern Bluefin Tuna | Southern Ocean | Purse Seine (Floating Object) | |
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| Purse Seine (Unassociated) | |
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| Longline | |
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| Pole & Line | |
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| Spotted Ray | North Sea, Skagerrak, Kattegat, and Eastern Channel | Beam Trawl | |
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| Otter Trawl | |
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| West of Scotland and Southwest Ireland | Otter Trawl | UNDER REVIEW | |
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| Spurdog | USA - Atlantic | Otter Trawl | |
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| Longline | |
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| Gillnet | |
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| USA - Atlantic (MSC) | Otter Trawl | |
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| Longline | |
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| Gillnet | |
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| Starry Ray | Norwegian Sea, Skagerrak, Kattegat, and North Sea | Beam Trawl | |
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| Otter Trawl | |
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| Starry Smoothhound | United Kingdom | Otter Trawl | |
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| Gillnet | |
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| United Kingdom - Cornwall | Otter Trawl | |
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| Swordfish | Indian Ocean | Longline | |
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| Pacific Ocean - North | Longline | |
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| Pacific Ocean - Northeast | Longline | |
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| Thornback Ray | North Sea, Skagerrak, Kattegat, and Eastern Channel | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| West of Scotland | Otter Trawl | |
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| Undulate Ray | English Channel | Beam Trawl | UNDER REVIEW | |
| Otter Trawl | UNDER REVIEW | |
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| Gillnet | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| White Skate | Atlantic Ocean - Northeast | Beam Trawl | |
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| Otter Trawl | |
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| Gillnet | |
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| Whiting | Celtic Sea (South) and English Channel (West) | Otter Trawl | |
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| Demersal Seine | |
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| United Kingdom - Cornwall | Beam Trawl | |
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| Otter Trawl | |
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| Wolffish | Iceland (MSC) | Otter Trawl | |
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| Longline | |
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| Demersal Seine | |
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| Wreckfish | United Kingdom - Cornwall | Handline | |
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| Yellowfin Tuna | Pacific Ocean - West Central | Longline | |
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| Pole & Line | |
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| Gillnet | |
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| Purse Seine (Floating Object) | |
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| Purse Seine (Unassociated) | |
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| Pacific Ocean - West Central (MSC) | Longline | |
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Pole & Line |
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Handline |
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Purse Seine (Floating Object) |
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Purse Seine (Unassociated) |
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