Cod

By Alex Clayton · Updated 23 October 2026

Cod fish in UK waters means the Atlantic cod (Gadus morhua), a cold-water member of the cod family found all round the British Isles. Anglers know it as the classic winter sea fish, caught from beaches, piers and boats, with the east coast and Scotland giving the most reliable sport.

It is also the fish behind fish and chips, yet anything under 35cm has to go back, and the Angling Trust reports that ICES advised zero commercial catch of North Sea cod for 2026. This guide to one of the best-known UK sea fish species covers identification, where and when to find cod, the size rules by district, the British records and whether to keep what you catch.

Cod at a Glance: Key Facts

The essentials, sourced in the sections below.

Fact	Detail
Scientific name	Gadus morhua (Atlantic cod)
Family	Cod family (Gadidae), alongside haddock, whiting, pollack and coalfish
Key ID marks	Three dorsal fins, two anal fins, a chin barbule and a pale, curved lateral line
Typical UK rod-caught size	Winter shore cod typically run 5lb to 15lb (2.3kg to 6.8kg); codling are smaller
UK minimum size	35cm
Best season	Autumn to winter
Lifespan	12 to 15 years, up to 20
British records	Boat 58lb 6oz (26.478kg); shore 44lb 8oz (20.183kg)
Conservation	Listed as Vulnerable on the IUCN Red List (per the Scottish Wildlife Trust)

On a dark beach, the ID marks are what separate a cod from its look-alikes.

How to Identify a Cod (and Tell It From Pollack, Coalfish and Whiting)

Small cod, pollack and coalfish can all come up on the same rough-ground mark on the same night. Mix them up and you end up measuring a fish against the wrong rule, because size limits are set per species.

On a cod, the upper jaw overhangs the lower, and a single, fairly long barbule hangs from the chin. Look for three dorsal fins, two anal fins and a pale, pronounced lateral line curving up over the pectoral fin. Colour runs from rich brown through green to silver, covered in brown or reddish speckles, with a creamy white belly. Cod from sandy ground tend to be darker brown, while fish feeding over rock are often redder.

Species	Jaw	Chin barbule	Lateral line	Other clue
Cod	Upper jaw longer	Long, obvious	Pale and curved	Speckled flanks
Pollack	Lower jaw juts out	None	Dark, curving over the pectoral fin	Bronze-olive and unspeckled
Coalfish	Lower jaw slightly longer	Tiny or none	Pale and straight	Dark back
Whiting	Upper jaw longer	Tiny or none	Not a main clue	Dark spot at the base of the pectoral fin
Haddock	Upper jaw longer	Small	Dark	Dark thumbprint blotch above the pectoral fin

The two most common mix-ups have their own pages: pollack and coalfish. There are also guides to whiting and haddock, and our UK fish identification guide covers the wider picture.

The quick test: a chin barbule plus a pale lateral line curving up over the pectoral fin means cod.

Cod vs Codling: What the Names Mean

Every winter, catch reports fill up with “codling”. It is not a separate fish.

Codling is the angler’s word for small, young cod, and there is no official size cut-off. Cod mature at about four years old, so most codling are younger fish.

Small cod shoal loosely, while bigger fish become more solitary. That is why codling come in numbers and a big cod usually turns up alone.

Figures quoted for large adults, around 100cm and 30kg or more, describe the species at its biggest, not normal rod catches. Typical winter shore cod run roughly 5lb to 15lb.

Under 35cm, it goes back whatever you call it. A 2lb (0.9kg) codling and a 20lb (9kg) cod are the same species under the same rules.

Where and When to Catch Cod in the UK

Anglers on the south and west coasts who fish from old memories of cod seasons tend to blank. Cod are now far less common there than on the east coast and in Scotland, so where you fish matters as much as when.

The pattern follows water temperature. Cod prefer cold water, moving offshore in summer and inshore in winter. In autumn, adult cod move south from colder northern waters to join the smaller fish already inshore. Through winter the shoals push south towards East Anglia and the Channel, then head north again in spring.

Coast	Typical cod window	Notes
North-east England and Yorkshire	Autumn to winter	Shore and boat
East Anglia and Kent	Winter, roughly October to January	Mainly from beaches
Scotland	Autumn and winter for most shore fishing	Found from the shoreline to over 200m deep; adults concentrate in the northern and offshore North Sea and on the west coast
South coast and Channel	Winter	Fewer fish and less reliable
Wales and the west	Winter	Less reliable than in the past

Night sessions and coloured water after an onshore blow are the conditions UK sea anglers most often recommend for cod. On many of the same beaches, bass take over as the main target in the warmer months.

If you live in the south, plan cod trips for the coldest months and treat anything outside them as a bonus.

Cod Behaviour, Diet and Life Cycle

A single adult female cod produces around five million eggs in a season, according to the Scottish Wildlife Trust. The stock is still under pressure.

Cod mature at about four years old and typically live 12 to 15 years, with some reaching 20. Their liking for cold water drives the inshore movement every winter, and, as covered in the codling section above, young fish shoal while older ones spread out.

They are indiscriminate eaters. Marine worms, prawns, shellfish, crabs, lobsters and other fish are all taken, and worms, sprats, crustaceans, herring and sandeels make up much of the staple diet.

That broad diet is why so many baits work. Lugworm, squid and crab each match something cod eat routinely, which is why all three come up again in the tactics section below.

Cod Size Limits and Rules in the UK

The minimum conservation reference size for cod in UK waters is 35cm, according to the GOV.UK minimum conservation reference sizes table. Measure from the tip of the snout to the end of the tail.

In England, Inshore Fisheries and Conservation Authorities (IFCAs) publish their own byelaw tables. The ones checked for this guide all give the same figure.

Authority	Cod minimum size	Note
UK national MCRS	35cm	The baseline for UK waters
Kent and Essex IFCA	35cm	Says local byelaws can sit on top of national rules
North Eastern IFCA	35cm	Covers key Yorkshire cod grounds
North Western IFCA	350 millimetres	Same size, written in mm
Eastern IFCA	35cm	Booklet dated March 2020; check the current byelaw
Other IFCAs (Devon and Severn, Cornwall, Southern, Sussex, Isles of Scilly)	Check your IFCA’s current byelaw	Not verified for this guide

No recreational cod bag limit turned up in GOV.UK or IFCA sources during research for this page. Check with your IFCA and the Marine Management Organisation before you fish.

You do not need an Environment Agency rod licence for sea cod. GOV.UK says the rod licence for England and Wales covers salmon, trout, freshwater fish, smelt and eel. Our guides to the fishing licence and sea fishing licence rules explain the detail.

Rules in Scotland and Northern Ireland were not verified for this guide. Check with the Scottish Government’s Marine Directorate or DAERA, and see our page on fishing licences in Scotland, Wales and Northern Ireland.

Rules change, so check the byelaw for the district you fish before you keep anything.

British Record Cod: Shore and Boat

The British boat record for cod has stood since 1992, and under the current rules no heavier boat cod can replace it on weight.

Boat: 58lb 6oz (26.478kg), caught by Noel Cook in 1992 in the North Sea off Whitby. Since June 2024 the British Record (Rod Caught) Fish Committee has accepted only measurement-based claims for boat-caught sea fish, to encourage catch and release. The weight record stays for historical reference; a boat cod length claim needs at least 100cm.

Shore: 44lb 8oz (20.183kg), caught by B Jones in 1966 at Tom’s Point, Barry, Glamorgan. Shore claims can still be made by weight or by length, with a 90cm qualifying length.

Both entries come from the BRFC sea fish listings updated 18 June 2026, published by the Angling Trust.

How Cod Are Caught: Shore and Boat Basics

Most UK cod fall to a short list of proven set-ups, and none of them need specialist kit to start.

From the shore, a beachcaster of around 12ft to 13ft is the typical tool. Over rough ground, a pulley rig or a clipped-down pennel helps you pull the lead clear of snags. On clean ground, a paternoster or running leger does the job. Grip leads of around 5oz to 6oz hold bottom in a tide, and 3/0 hooks on a pennel are a common starting point.

Fresh lugworm is the staple bait, with black lug or yellowtail tougher on the hook and carrying more scent. Squid, lug and squid cocktails, peeler crab for smaller cod over rough ground, and ragworm all catch too.

Afloat, inshore boats usually anchor over rough ground and sandbanks and fish worm or squid on a running leger. Further offshore, pirks jigged vertically over banks are the standard autumn and winter method. Our guides to beach fishing and boat fishing cover the basics.

For rigs, casting and tides in depth, read our full cod fishing guide.

Best for shore anglers: the east coast and Scotland in winter. On the south coast, a winter boat trip often gives better odds.

Cod Stocks, Handling and Whether to Keep One

Everyone says cod are in trouble. Few say what that means with a fish on the sand in front of you.

The Scottish Wildlife Trust says Atlantic cod is listed as Vulnerable on the IUCN Red List, and that North Sea cod recovered to a 35-year high by 2017 before ICES described it as critically low again by summer 2019. The Angling Trust has since reported that ICES advised zero commercial catch of North Sea cod for 2026.

Keeping a legal-sized cod is lawful, returning undersized fish is required, and returning more is your call. To check a fish:

Wet your hands and keep the fish low over wet sand or the deck.
Measure it from snout tip to tail tip on a flat rule.
If it is under 35cm (350mm in North Western IFCA wording), return it straight away.
Unhook it quickly and release it head-first into the water.

A cod returned fast and handled gently has the best chance of being caught again next winter. Our guides to unhooking and handling fish and catch and release go further.

Frequently asked questions

Is there a bag limit for cod in the UK?

No recreational cod bag limit was found in GOV.UK or IFCA sources at the time of writing. Check with your IFCA and the Marine Management Organisation in England, or the Marine Directorate in Scotland or DAERA in Northern Ireland, before you fish.

Can you catch cod in summer?

Yes, but mostly offshore from boats or from deeper northern and Scottish marks. Cod move offshore as the water warms, so inshore shore fishing for cod is mainly an autumn and winter game.

Do you need a boat to catch cod?

No. Winter beaches, piers and harbour walls produce cod, especially on the east coast and in Scotland, though a boat reaches more fish outside winter.

Is it OK to eat cod you catch?

Yes. A cod of 35cm or more can legally be kept for the table. With cod stocks under reported pressure, keeping only what you will eat and returning the rest is a sensible rule of thumb.

Cod