UK Sea Fish Species for Anglers

By Alex Clayton · Updated 24 October 2026

Most of the sea fish species UK anglers catch fall into a handful of groups: round fish such as bass, cod, pollack and mackerel, then flatfish, rays, small sharks and dogfish, and conger eels. Which of them you meet depends on two things: whether you fish from the shore or a boat, and the time of year.

The rules matter as much as the fish. Bass have a national bag limit and minimum size, while most other minimum sizes are set locally, so what you can keep changes as you move along the coast.

Below: how to sort and identify UK sea fish, where and when to find them, and what you can take home, with each species guide linked as you go. For freshwater and game fish as well, see all UK fish species.

The Main Groups of UK Sea Fish

Most identification problems disappear once you decide which of six body shapes is in your hands. Shape cuts a list of dozens of UK sea fish down to a few candidates, and it points you to the right rig before you cast.

Round fish: the biggest group, covering bass and mackerel through to cod, pollack, whiting and wrasse. Torpedo-shaped or deep-bodied, with an eye on each side of the head.
Flatfish: they lie on one side on the seabed, with both eyes on the upper side. Plaice, flounder, dab and sole are the regulars. See the UK flatfish guide.
Rays and skates: flattened cartilaginous fish with wide, wing-like pectoral fins and the mouth underneath. The rays guide covers thornback, small-eyed and the rest.
Sharks and dogfish: cartilaginous, with skin like sandpaper. They run from the lesser spotted dogfish found off many beaches to tope and blue shark offshore. See UK sharks.
Eels: the conger eel is the sea angler’s eel, living in wrecks, rocks and harbour walls.
Mini-species and rarities: blennies, gobies and small wrasse in rock pools and harbours, plus occasional visitors such as triggerfish and, well offshore, bluefin tuna.

Start with shape, then use the lookalike pairs further down to settle the close calls.

Shore or Boat: Which Sea Fish You Can Catch

A shore angler casting for ling is likely to go home without one. Ling live over deep wrecks and reefs, far beyond the reach of a beach rod, and that is the biggest single factor in your species list: where you can physically put a bait.

Beaches, piers, harbour walls and rock marks mainly produce bass, mackerel, flatfish, whiting, pouting, wrasse, mullet, garfish and scad. These fish come close in to feed over sand, weed and rock, within range of a standard beach or light spinning rod.

Inshore and offshore boat marks, wrecks and reefs open up the deeper-water fish: cod, pollack, ling, conger, rays, haddock, gurnard, black bream and sharks.

Some species cross over. Bass, pollack, rays, conger and cod can all come from either, given the right mark and season: rocky headlands for pollack, surf beaches for rays, deep harbour walls and piers for conger.

Species group	Usual from shore	Usual from boat
Bass and mullet	Yes	Yes
Mackerel, scad and garfish	Yes	Yes
Flatfish	Yes	Yes
Wrasse and pollack	Yes, from rock marks	Yes
Cod and whiting	Yes, mainly in winter	Yes
Ling, haddock and conger	Conger only, from harbours and piers	Yes
Rays and sharks	Rays and dogfish from some beaches	Yes

Best for a first trip: mackerel from a pier in summer. Skip if you have no boat access: ling, haddock and the other deep-water species.

UK Sea Fishing Species by Season

Winter is not the off season in sea fishing. It brings a different set of fish to the shore.

From late spring to autumn, as the water warms, the summer visitors move inshore: mackerel, bass, garfish, scad, black bream, wrasse, mullet, and smaller sharks and rays. This is the easiest window for a beginner, because many of these fish feed hard in daylight.

From late autumn into winter, the sea fishing species UK beaches and piers produce change to cod, whiting, pouting, dab and other flatfish. Evening and night sessions on a rising tide usually suit them best.

These are rough windows, not dates. The south-west runs on a different calendar from the North Sea coast, and one year differs from the next, so follow local catch reports and ask in the nearest tackle shop.

One rule shapes the bass calendar in England: from 1 February to 31 March, bass fishing is catch-and-release only. The full bass rules are in the rules section below.

Summer list: mackerel, bass, garfish, bream, wrasse, mullet.
Winter list: cod, whiting, pouting, dab.

Starting in winter? Fish for whiting and dab on an evening beach session.

Sea Fish Identification: Commonly Confused UK Species

A fish you think is a pollack might be a coalfish, and that can decide whether you keep it. In the North Western IFCA district, pollack must be at least 30 cm but coalfish (saithe) 35 cm. Four lookalike groups account for most sea fish identification mistakes in the UK.

Pollack vs coalfish. Check the lateral line first. On a pollack it is dark and curves up over the pectoral fin, and the lower jaw juts well past the upper. On a coalfish the lateral line is pale and almost straight, and the lower jaw barely protrudes. Compare the pollack and coalfish guides.

Bass vs grey mullet. Look at the mouth and gill covers. A bass has a large mouth and sharp spines on its gill covers. A mullet has a small, thick-lipped mouth built for grazing fine food, and smooth gill covers. More in the mullet guide.

Plaice vs flounder vs dab. Plaice show bright orange spots and a row of bony knobs behind the eyes. Flounder have rough patches along the bases of the fins. Dab have a lateral line that arches sharply over the pectoral fin, and the skin feels rough when you stroke it from tail to head. The flatfish guide has the full breakdown.

Mackerel vs scad. Scad, also called horse mackerel, has a row of hard bony plates (scutes) along the lateral line and none of the mackerel’s wavy stripes. See scad.

Quick check: lateral line, then mouth, then skin. If you are still unsure, photograph the fish and compare it with a field guide before you keep it.

UK Sea Fish to Handle With Care

One of the smallest fish on a summer beach is the one most likely to hurt you.

Weever fish: venomous spines on the first dorsal fin and gill covers. They bury themselves in shallow sand. Handle them with a cloth or forceps, and wear shoes when wading. If you are stung, get first aid advice from a lifeguard or NHS 111. Read the weever fish guide.
Conger eel: a powerful bite and a strong, twisting grip. Unhook with long forceps, or cut the trace close to the mouth.
Thornback and other rays: sharp thorns on the back and tail.
Gurnard and some wrasse: spiny dorsal fins and gill covers. See gurnard.
Triggerfish: strong teeth built for crushing shellfish, so keep fingers clear of the mouth.

Treat any spiny dorsal fin as a reason to slow down and reach for a cloth.

Sea Fishing Rules: Bass Limits, Minimum Sizes and Licences

The bass rules in England were updated in February 2026, so an older page quoting a bag limit may already be wrong.

Bass in England. Under Marine Management Organisation guidance updated on 27 February 2026, recreational anglers can keep three bass per person per day. From 1 February to 31 March it is catch-and-release only. The minimum size is 42 cm, and the rules apply whether you fish from a boat or the shore. The source is the MMO bass fishing guidance on GOV.UK, and the bass species guide covers tactics.

Wales, Scotland and Northern Ireland. The Welsh Government says its daily bass bag limit is rising from two fish to three, so check current Welsh guidance before you fish. In Scotland, check with the Scottish Government, and in Northern Ireland with DAERA.

Minimum sizes. For most other sea fish species UK anglers keep in England, minimum sizes are set by Inshore Fisheries and Conservation Authority (IFCA) byelaws. They apply to everyone fishing in the district, and undersize fish must go back straight away. Sizes differ between districts, as these two show (cm):

Species	North Western IFCA	Kent and Essex IFCA
Cod	35	35
Pollack	30	30
Whiting	27	27
Plaice	27	27
Haddock	30	30
Ling	63	63
Mackerel	20	30 in ICES IVc, 20 in VIId
Coalfish (saithe)	35	Not listed

Sources: North Western IFCA and Kent and Essex IFCA. Your own IFCA may differ, so check its current table.

Licences. Angling bodies such as the Angling Trust say you do not need a rod licence to fish in the sea in England. Piers, harbours and private marks can still require permission or a ticket, so check locally.

Before your first trip, look up your IFCA’s size table and save it on your phone.

Frequently asked questions

What is the easiest sea fish to catch in the UK?

Mackerel, in summer, from piers and rocks. They shoal close in and take feathers or small lures readily. In winter, whiting, pouting and dab are the easiest targets from beaches. The mackerel guide covers tackle.

How many bass can I keep in England?

Three per person per day, each at least 42 cm, under MMO guidance updated in February 2026. From 1 February to 31 March bass are catch-and-release only. Wales is moving to three a day, so check Welsh Government guidance there.

Do I need a licence for sea fishing in the UK?

Angling bodies say no rod licence is needed to fish in the sea in England. Piers, harbours and private marks may still charge or need permission. Check the rules separately for Scotland, Wales and Northern Ireland.

What size sea fish can I keep?

It depends on your local IFCA byelaw, and sizes vary by district. In the North Western and Kent and Essex districts, for example, cod must be 35 cm and pollack 30 cm. Bass are 42 cm nationally in England. Check your own IFCA's table.