Grey Gurnard

Grey gurnard are a common boat species around the Irish coast, turning up on sandy and mixed ground from Donegal to Cork.
They're the smallest of the three gurnard species Irish anglers regularly encounter, and while they won't test your tackle, they're a genuine target for species hunters and a reliable catch when other fish are slow.
Specimens are rare enough to be worth chasing.
Scientific Name: Eutrigla gurnardus
Also known as Cnúdán Liath
- Grey-brown back, white belly; colour varies by location and can run pink-red, but the pectoral fins are noticeably shorter than on tub or red gurnard — the key ID feature.
- Boxy, armoured head tapering sharply to the tail; first dorsal fin carries a distinct black spot on the outer edge when raised.
- Lateral line made up of enlarged, ridged scales — run a finger along the flank and you'll feel them clearly.
- Most fish run well under 1lb; the Irish record stands at 3lb 1oz, and anything over the specimen threshold of 1.32lb (0.6kg / 40cm) is considered exceptional.
What to know
Habitat Distribution
- Native to the northeast Atlantic; found all around the Irish coastline, with records concentrated along the east, south, and west coasts.
- Prefers sandy and clean gravel seabeds, but also moves over broken shell, patchy reef, and muddy ground where food is available, typically from the shallows down to around 140m.
- Young fish can be found in very shallow water, occasionally following the tide into the intertidal zone in summer.
- The most coastal of Ireland's three gurnard species — more likely to be encountered inshore than tub or red gurnard.
Key Locations
- Sheephaven Bay (Downings) and Port-na-Blagh, north Donegal — noted as reliable spots for specimen-sized fish.
- Bunagee Harbour, Culdaff, Donegal — numbers of fish present; a patient session can turn up a larger specimen.
- Cork Harbour — consistently produces gurnard and is regarded as one of the better venues for specimen attempts.
- Dun Laoghaire, Dublin — has recorded multiple specimens in recent years from boat marks on the east coast.
- Belmullet, County Mayo — occasional specimens from the west coast, where mixed ground meets open Atlantic water.
Specific Spots
- Fish the transition from clean sand into patchy or broken ground — gurnard work these edges hunting shrimp and small fish buried in the substrate.
- Keep baits close to the bottom over sandy ground; gurnard walk the seabed on their free pectoral rays and feed low, so a bait sitting a foot or two off the bottom is in the zone.
- In harbours and sheltered bays, numbers of fish can be high but average size is small — working a wider area of ground by drifting or slow-trolling a bait gives a better chance of finding a larger specimen.
Grey Gurnard FAQ
Answers from onWater's species guide.
What are the best lures and bait for Grey Gurnard?
Mackerel strip, sandeel (fresh or frozen), squid strip, and ragworm are the standard baits, any of these on a moving trace over clean ground will produce fish.
When is the best time to fish for Grey Gurnard?
Catchable from around April through to November along the Irish coast. Peak fishing runs from July through September, when fish are most active in inshore waters. June and July see the highest frequency of reported catches from Irish boat marks.
How do you catch Grey Gurnard?
Boat angling gives the best results, drifting or working slowly over sandy and mixed ground. The key tactic is keeping the bait moving, letting the lead trundle a few feet at a time so the bait travels across the bottom rather than sitting static.
What do Grey Gurnard eat?
Gurnard use the three detached lower pectoral rays as sensory feelers, probing sand for buried shrimp and crabs, baits like ragworm and squid strip that sit on or just above the bottom imitate this natural forage well.
Where do Grey Gurnard live?
Native to the northeast Atlantic; found all around the Irish coastline, with records concentrated along the east, south, and west coasts. Prefers sandy and clean gravel seabeds, but also moves over broken shell, patchy reef, and muddy ground where food is available, typically from the shallows down to around 140m.
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