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Greater weever

Fish · Last reviewed 2026-08-15

The most venomous fish in British and Irish waters — a small sand-burying ambush predator with venomous dorsal and gill-cover spines, caught by accident and stood on by bathers.

A supporting record, not a fishing profile

This page is here so FishingHQ can describe a biological relationship accurately — usually because a fish covered elsewhere on the site feeds on this. It covers what it is, where it lives and the evidence behind that relationship, and deliberately nothing about methods, bait or tackle. Its presence here is not a statement that anybody fishes for it.

Safety

Venomous and spined species — Can cause serious injury or death

The short black first dorsal fin carries five to seven venomous grooved spines and there is a further venomous spine on each gill cover. Trodden on, or grasped to unhook, the fish drives them into a foot or hand and injects venom. Pain builds over minutes to an intensity people describe as among the worst they have experienced, radiates up the limb and can last for hours. Spines frequently break off in the wound. Severe systemic and allergic reactions occur, secondary infection is common, and stings to children and older people are more serious.

What reduces it: Do not handle one: cut the trace or unhook with long pliers while the fish is on the ground, never in the hand, and never put one in a bucket or leave one lying on the beach. Wear footwear when wading over sand and shuffle rather than step. IF STUNG, immerse the part in water as hot as can be tolerated without scalding — tested by somebody else, because the pain makes the stung limb a poor judge — for thirty to ninety minutes; the venom is heat-labile and this works. Check for retained spine fragments. Seek medical help for a sting in a child, a large or multiple wound, any breathing or systemic symptoms, a possible retained spine, or a wound that later becomes infected.

Worse when:

  • Wading barefoot on clean sand on a falling or low tide in summer, which is where and when almost every sting happens.
  • Unhooking by feel in the dark, which is exactly how anglers fishing worm baits for flatfish are stung.
  • Handling a small fish on the assumption that a small weever is a harmless one — size has no bearing on the sting.
  • A sting to a child, an older person, or anyone with a known severe allergic history.

Precautions that always apply here

  • Handle spined and venomous species with the spines controlled. Know which local species have them before you fish, not afterwards.
  • If a hook goes past the barb into a person, cut the line, leave the hook where it is, and get medical help. Pulling it back out does far more damage than pushing it through under proper care.
  • Carry a charged phone in a waterproof case, or another means of calling for help.
  • Keep fingers out of the gills and clear of the teeth. Gill damage is usually fatal to the fish, and several species will remove skin from a finger.

This record exists for one reason: greater weever is the most venomous fish in British and Irish seas, it is caught by accident on surf beaches and inshore boat marks every summer, and an angler who does not recognise one will pick it up.

IT IS NOT A QUARRY SPECIES. Nobody fishes for weever, and FishingHQ does not present it as something to catch. It is here as a hazard and as an identification, in the same way that a page about a live power line is not a page about electricity supply.

THE VENOM IS DELIVERED BY THE BLACK FIRST DORSAL FIN AND BY A SPINE ON EACH GILL COVER. The fish lies buried in clean sand with only its eyes and the tip of that black dorsal exposed, waiting for small fish and crustaceans. Trodden on, or grasped, it drives the spines into the foot or hand and injects venom through grooves in them.

THE PAIN IS SEVERE AND OUT OF ALL PROPORTION TO THE INJURY. It builds over minutes to an intensity people describe as among the worst they have experienced, radiates up the limb, and can last for hours. It is very rarely dangerous in itself, but severe systemic reactions and secondary infection both occur, and a broken-off spine left in the wound is common.

THE TREATMENT IS HOT WATER, and it works. The venom is heat-labile: immersing the affected part in water as hot as can be tolerated without scalding, for thirty to ninety minutes, relieves the pain and denatures the venom. That single fact is the most useful thing on this page.

Identification

FishingHQ holds no photograph of this species whose identity and licensing it can vouch for, so it is not showing one. Misidentified fish photographs teach identification wrongly, and a picture with an unchecked caption would be worse than none. The identification points below are what to look at instead.

Scientific name
Trachinus draco
Family
Trachinidae
Water
Saltwater
Conservation status
Least Concern
Regions
Britain & Ireland, Northern Europe, Western Europe, Mediterranean, North Africa
  • A SHORT, BLACK FIRST DORSAL FIN carrying five to seven venomous spines. The black fin is the warning signal and the single most important thing to recognise — it is often the only part visible on a buried fish.
  • A venomous spine projecting backwards from each gill cover, which is the one that catches a hand reaching to unhook.
  • Elongate, laterally compressed sandy-brown body with oblique darker stripes or bars along the flanks, and a pale belly.
  • EYES AND MOUTH SET HIGH AND ANGLED UPWARDS, on top of the head — the giveaway of a fish that lies buried and looks up.
  • Small: usually 15–30 cm. Size is no guide to danger; a small weever stings exactly as effectively as a large one.
  • The lesser weever, Echiichthys vipera, is smaller, blunter-headed and lives in shallower water including the surf line. It is equally venomous and the first aid is identical.

Size

Typical
15–25 cm.
Large
Over 30 cm.

Exceptional: Around 40 cm is the reported maximum. Size has no bearing on the severity of a sting and should not be treated as if it does.

Lifecycle and reproduction

Greater weevers hatch from pelagic eggs and pass through a planktonic larval stage before settling to sandy bottoms and adopting the buried ambush habit. They grow slowly, mature at two to three years and may live for a decade or more. The buried habit is adopted early, so even small juveniles present the same hazard as adults.

A broadcast spawner, releasing pelagic eggs over sandy grounds through summer, with no nest and no parental care. Spawning coincides with the period when the fish are most abundant in shallow inshore water, which is also when bathers and anglers are most likely to encounter them — the seasonal overlap of the sting problem is a consequence of that timing rather than a coincidence.

Feeding and senses

An ambush predator that lies buried in clean sand with only the eyes and the tip of the black dorsal fin exposed, and takes small fish, shrimps and other crustaceans that pass overhead. The upward-facing mouth and high-set eyes are direct adaptations to that posture. Weevers are most active at dusk and at night, when they emerge and hunt more freely over the sand.

Vision upwards, against the light, is the primary sense for an ambush from below, supported by a well-developed lateral line that detects the water movement of prey passing overhead. This is why a weever can hunt effectively at night and in poor visibility, and why burying is not a handicap: the fish does not need to see far, only to detect what crosses directly above it.

Through the year

Weevers move into shallow inshore water in summer and retreat into deeper water in autumn and winter. Almost all stings occur between late spring and early autumn, and the majority on falling and low tides when bathers and anglers are wading over sand that was covered a few hours earlier. Encounters at night are proportionally more common because the fish emerge to hunt.

Distribution

Eastern Atlantic from Norway and the British Isles south to Morocco and Madeira, throughout the Mediterranean and into the Black Sea. Lives on clean sand and muddy sand from the shallow subtidal down to around 150 m, and is common in the shallow inshore water of sandy beaches in summer. The global assessment is Least Concern.

This is a biological range — where the species occurs, not a prediction that you will catch one. To browse the fishing geography FishingHQ holds, start at fishing places.

Why anglers care

None as a quarry, and considerable as a hazard. Weevers are taken accidentally on worm and small fish baits fished on clean sand — exactly the fishing that targets dab, plaice and small bass — and they are landed by anglers who are not expecting them and are reaching to unhook by feel. They are also trodden on by waders and bathers on the same beaches. Recognising the black first dorsal fin before touching a small sandy-brown fish is the entire practical content of this record.

Handling and returning

DO NOT HANDLE ONE. If a weever is on the hook, cut the trace and let the fish go, or unhook it with long pliers while it lies on the ground and never in the hand. Do not attempt to hold it, do not grip it to remove a hook, and do not put it in a bucket or a bag where somebody will later reach in. If one is landed on a beach, do not leave it lying on the sand where a bare foot will find it — return it to the water with the rod tip, a landing net or pliers. Wear footwear when wading over sand. If stung, immerse the part in water as hot as can be tolerated without scalding for thirty to ninety minutes, check for broken-off spine fragments, and seek medical help for a sting to a large area, a sting in a child, any breathing or systemic symptoms, or a wound that later becomes infected.

Sandy shallows in summer: where and when people actually get stung

The weever problem is a problem of overlap. The fish wants exactly the ground that people want.

THE HABITAT IS CLEAN SAND. Greater weevers bury in clean sand and muddy sand from the shallow subtidal down to around a hundred and fifty metres. What matters for anyone reading this is the shallow end: in summer they are common in a metre or two of water over the same sandy beaches people swim from and cast onto.

THE SEASON IS LATE SPRING TO EARLY AUTUMN. Weevers move inshore as the sea warms and retreat to deeper water in autumn and winter. Essentially all stings happen in the warm half of the year, and that is not because the venom is seasonal but because the fish and the people are in the same water at the same time.

THE TIDE STATE MATTERS AND IS UNDER-APPRECIATED. Most stings occur on a falling or low tide, when people wade across sand that was deeper water a few hours before and the fish are in the shallowest water they will occupy. Standing in ankle-deep water on a low summer tide on a sandy beach is the highest-risk situation there is, and it is also the single most ordinary thing anyone does at the seaside.

DUSK AND NIGHT INCREASE ENCOUNTERS, because weevers emerge from the sand to hunt and move more freely. A night beach session on clean sand is more likely to produce a weever on the hook than a daytime one.

THE SAME GROUND IS DAB, PLAICE AND BASS GROUND. That is the angling half of the overlap: fishing worm baits on clean sand for flatfish is precisely the fishing that catches weevers by accident, and it is done in the dark by people reaching down to unhook by feel.

FOOTWEAR SOLVES MOST OF THE BATHING PROBLEM and shuffling rather than stepping solves more of it — a weever will move away from disturbance if given the chance, and it stings when it is trodden directly on.

THE LESSER WEEVER SHARES THIS GROUND AND GOES SHALLOWER STILL, right into the surf line. It is smaller and blunter-headed and just as venomous, and every word here applies to it.

Authoritative guidance

Stated by a fisheries authority, scientific institute or recognised angling body. Authoritative, but summarising rather than demonstrating.

  • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat, identification characters and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
  • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic identification characters, family placement and distribution as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly
  • General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated descriptions of species behaviour and regional angling practice, recorded as consensus rather than as scholarship.Background and mechanism onlyCitation checked — the work exists and is described correctly

Buried, looking up: how a weever hunts, and how big it needs to be to hurt you

The weever's whole anatomy is organised around lying still under sand and waiting.

IT BURIES ITSELF. The fish works down into clean sand until only its eyes and the tip of its short black first dorsal fin are exposed. That is its normal resting state, and it is why a weever is essentially never seen before it is stood on.

THE EYES AND MOUTH FACE UPWARDS. Both are set high on the head and angled up, which is the direct anatomical consequence of an ambush from below. The fish does not need to see far — only to see what passes directly overhead, against the light.

THE LATERAL LINE DOES THE REST. Water movement from a small fish or shrimp passing above is detected without vision at all, which is why weevers hunt effectively at night and in coloured water and why being buried costs them nothing.

THE DIET IS SMALL FISH, SHRIMPS AND OTHER CRUSTACEANS, taken with a fast upward lunge from the sand. Weevers are most active at dusk and through the night, when they emerge and hunt more openly over the bottom.

SIZE: SMALL, AND IT DOES NOT MATTER. Most greater weevers are 15 to 25 centimetres, over 30 is large, and around 40 centimetres is the reported maximum. The lesser weever is smaller again.

BUT SIZE HAS NO BEARING ON THE STING. This is the most dangerous misconception about the species and it deserves stating flatly: a small weever envenomates exactly as effectively as a large one. The spines are proportionally long, they are grooved, and the venom glands run their length. A fifteen-centimetre fish that looks harmless enough to pick up will put somebody on the ground.

AND THE BLACK FIN IS THE ONLY RECOGNITION YOU NEED. A small sandy-brown fish with oblique flank markings and a SHORT BLACK FIRST DORSAL FIN is a weever. Do not pick it up. Everything else on this page is detail; that sentence is the content.

Authoritative guidance

Stated by a fisheries authority, scientific institute or recognised angling body. Authoritative, but summarising rather than demonstrating.

  • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat, identification characters and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
  • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic identification characters, family placement and distribution as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly
  • General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated descriptions of species behaviour and regional angling practice, recorded as consensus rather than as scholarship.Background and mechanism onlyCitation checked — the work exists and is described correctly

If you are stung: hot water, and what else to check

The treatment for a weever sting is simple, it is well established, and a great many people do not know it.

HOT WATER. Immerse the stung part in water as hot as can be tolerated WITHOUT SCALDING — hot bath temperature, tested by somebody else's hand or with a thermometer, never judged by the stung limb itself because the pain makes that judgement unreliable — and keep it there for thirty to ninety minutes, topping the water up as it cools. The venom is heat-labile: heat denatures it, and the pain relief is usually rapid and substantial. This is the treatment, not a folk remedy.

WHY THE TEMPERATURE WARNING MATTERS. A person in severe pain will hold a limb in water hot enough to burn and not notice. Scald injuries from weever first aid are a recognised problem. Have somebody else test the water.

WHAT THE PAIN IS LIKE. It builds over minutes rather than arriving at full strength, radiates up the limb, and reaches an intensity people routinely describe as among the worst they have experienced. Swelling, redness and numbness around the site are usual. It commonly persists for hours and tenderness can last for days.

CHECK FOR BROKEN SPINE FRAGMENTS. Weever spines break off in the wound reasonably often. A retained fragment keeps the wound painful, keeps venom in the tissue and seeds infection, and it needs removing — which usually means medical attention rather than a penknife on the beach.

SEEK MEDICAL HELP IF: the sting is to a child or an older person; the wound is large, or there are multiple punctures; there is any difficulty breathing, chest pain, faintness, widespread rash or swelling away from the site, which suggest a systemic or allergic reaction; a spine fragment may be retained; or the wound becomes red, swollen, hot or increasingly painful over the following days, which suggests infection. Tetanus status is worth checking as for any puncture wound.

WHAT NOT TO DO: do not use ice or cold water, which does nothing useful and may worsen the pain; do not cut the wound, suck it, or apply a tourniquet; do not use urine or vinegar, neither of which has any role here.

AND THE PREVENTION IS ORDINARY. Wear footwear when wading over sand. Shuffle rather than step. Never pick up a small sandy fish with a black first dorsal fin, never put one in a bucket, and never leave a landed one lying on the beach where a bare foot will find it — return it with pliers, a net or the rod tip.

Authoritative guidance

Stated by a fisheries authority, scientific institute or recognised angling body. Authoritative, but summarising rather than demonstrating.

  • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat, identification characters and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
  • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic identification characters, family placement and distribution as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly
  • General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated descriptions of species behaviour and regional angling practice, recorded as consensus rather than as scholarship.Background and mechanism onlyCitation checked — the work exists and is described correctly

Where to go next

Similar and related fish

What these connections rest on (1)

Scientific evidence — 1 connection

Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.

  • Lesser sandeel

    A dietary claim about an ambush predator of clean sandy ground. Ammodytes marinus is named specifically because the edge asserts something about that species and not about small fish in general.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: The diet of Trachinus draco, recorded as small fish and crustaceans taken from ambush on clean sandy ground, and the occurrence of Ammodytes marinus as an abundant small fish of exactly that habitat in British and north-west European waters.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Habitat, depth range and feeding habit for Trachinus draco and for Ammodytes marinus in the eastern Atlantic, including the shared association with clean sand.States this directlyCitation checked — the work exists and is described correctly

Where it lives

What these connections rest on (2)

Scientific evidence — 2 connections

Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.

  • Inshore ground

    A distributional claim about where a species is found, which is a claim about the world and rests on the standard regional reference works rather than on angling report.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

  • Surf beaches

    A distributional claim about where a species is found, which is a claim about the world and rests on the standard regional reference works rather than on angling report.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

Understanding this fish

What these connections rest on (1)

Scientific evidence — 1 connection

Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.

  • Decapod crustaceans as prey

    A dietary claim recorded at GROUP level against a modelled prey concept, because the sources describe the prey as a group and inventing a species to point at would be the fabrication the precision audit exists to prevent.

    • Cefas science, advice and data on marine and freshwater environments — Centre for Environment, Fisheries and Aquaculture Science (Government fisheries body)Relied on for: UK marine fisheries science: survey data, distribution and the biological basis of management advice for the species concerned.States this directlyCitation checked — the work exists and is described correctly
    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly

Told apart from

What these connections rest on (3)

Scientific evidence — 1 connection

Supported by peer-reviewed research or fisheries science. The sources are listed and can be checked.

  • Lesser weever

    Taxonomic and practical relatedness recorded because confusable species matter more to a reader than a shared family does, with the evidence naming the species the edge is about.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Identification characters, family placement and biology of Trachinus draco and of the species it is confused with, as set out for the fauna of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters and family placement of Trachinus draco as set out in the FAO species identification sheets for the region concerned.States this directlyCitation checked — the work exists and is described correctly

Practitioner consensus — 3 connections

Widely and independently recommended by experienced anglers and specialist sources. This is real angling knowledge, not proof: controlled evidence for it is limited, and FishingHQ records it as convention rather than as a demonstrated effect.

  • Lesser weever

    A comparison a reader with the animal or the decision in front of them actually needs, joining two records that resolve one another.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes and inshore fauna of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, family placement, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

  • European plaice

    Two records a reader will hold together — here because the fish are confused with one another in the hand, which is an identification problem rather than a preference.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

  • Red scorpionfish

    A comparison a reader with the animal or the decision in front of them actually needs, joining two records that resolve one another.

    • Cefas science, advice and data on marine and freshwater environments — Centre for Environment, Fisheries and Aquaculture Science (Government fisheries body)Relied on for: UK marine science: distribution, habitat association, shellfish and crustacean monitoring, and the biological basis of management advice.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Habitat, depth range and distribution as set out in the FAO species identification sheets for the region concerned.States this directlyCitation checked — the work exists and is described correctly

Safety reading

What these connections rest on (2)

Authoritative guidance — 2 connections

Stated by a fisheries authority, scientific institute or recognised angling body. Authoritative, but summarising rather than demonstrating.

  • Venomous and spined fish

    A hazard carried by this record joined to the topic that explains it in full, so that the warning on the page has somewhere to lead.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

  • Wading safely

    A hazard carried by this record joined to the topic that explains it in full, so that the warning on the page has somewhere to lead.

    • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat association, identification and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
    • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic characters, habitat and depth range as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly

Sources for this page

  • The Fishes of the British Isles and North-West Europe — Macmillan, 1969 (Reference work)Relied on for: Distribution, habitat, identification characters and biology of the fishes of the British Isles and north-west Europe.States this directlyCitation checked — the work exists and is described correctly
  • FAO Species Identification Guides for Fishery Purposes and the FAO Species Catalogues — Food and Agriculture Organization of the United Nations (Scientific institute)Relied on for: Diagnostic identification characters, family placement and distribution as set out in the FAO species identification sheets for the eastern Atlantic and Mediterranean.States this directlyCitation checked — the work exists and is described correctly
  • General angling website restatements of established technique — Various (Credible secondary source)Relied on for: Widely restated descriptions of species behaviour and regional angling practice, recorded as consensus rather than as scholarship.Background and mechanism onlyCitation checked — the work exists and is described correctly

How FishingHQ labels evidence is explained in the evidence policy.

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