Black Seabream
Black seabream turn up along Ireland's east and south coasts, mostly over offshore reefs and wrecks from late summer into autumn.
Long considered a rarity here, warming seas have made them a more realistic target for specialist boat anglers — particularly out of Wicklow and Kilmore Quay. They're a technical fish: small-mouthed, line-shy, and rewarding when you get the presentation right.
Scientific Name: Spondyliosoma cantharus
Also known as Black Bream, Sea Bream, Deargán Dubh
- Deep, oval body compressed side-to-side; dark grey to black on the back fading to silver-white on the belly, often with faint vertical bars — more pronounced in younger fish.
- Single long dorsal fin with clearly spiny front section running about two-thirds of the body length; tail deeply forked with a dark rim, especially in juveniles.
- Small but powerful mouth with sharp teeth — noticeably smaller than most other sea fish of similar body size; gill covers are sharp, so handle with care.
- Adults typically 35–40 cm; Irish specimen weight sits just under 2.3 kg (5 lb), and the Irish record stands at 1.46 kg taken at Kilmore Quay.
What to know
Habitat Distribution
- A warm-water eastern Atlantic sparid, native to these waters but historically rare in Ireland; rising sea temperatures have pushed numbers northward along the Irish coast in recent decades.
- Recorded mainly along the south-eastern coast from Wicklow down to Kilmore Quay and around the south coast; occasional catches from Killybegs on the west coast and as far north as Culdaff.
- Found over rocky reef, broken ground, mixed ground and wrecks; also associated with seagrass beds and sandy bottoms, generally from mid-depth down to around 300 m.
Key Locations
- Wicklow — the most consistent Irish port for targeted black bream, with charter skippers actively working local reef marks.
- Kilmore Quay, Co. Wexford — produced the Irish record fish and remains one of the most reliable south-east marks.
- South coast generally — fish have been recorded around the coast from Wexford westward, though catches are localised and sporadic.
- Killybegs, Co. Donegal, and Culdaff — occasional catches from the west and north coasts over offshore wrecks, showing the species is more widespread than once thought.
Specific Spots
- Rocky reef edges and broken mixed ground — black bream hold tight to structure and feed along the transition between hard and soft bottom.
- Wrecks, particularly offshore ones, concentrate fish; they use the wreck as cover and feed on the invertebrates colonising the hull.
- Once you locate active fish, accurate recasting to the same spot matters — they move in groups and a precise drop back into the feeding zone keeps the session going.
Black Seabream FAQ
Answers from onWater's species guide.
What are the best lures and bait for Black Seabream?
Fresh worm (ragworm or lugworm), prawn, squid strip, and shellfish baits are the go-to choices, small, fresh, and presented on a small sharp hook close to the reef or wreck. Fish-strip baits also work; keep pieces small to match the fish's small mouth and change bait regularly to keep scent fresh.
When is the best time to fish for Black Seabream?
Late summer and autumn (roughly August through October) are the most productive months in Irish waters, when sea temperatures are at their highest and fish are most active inshore. Catches drop off sharply as water cools into winter; spring and early summer are largely unproductive for rod-caught fish in Ireland.
How do you catch Black Seabream?
Most Irish black bream are taken from charter boats over offshore reef and wreck marks, fishing light bottom rigs with fresh bait close to structure.
What do Black Seabream eat?
Primarily small crustaceans, shellfish, and other bottom-dwelling invertebrates, worm, prawn, squid strip, and shellfish baits all work because they directly imitate what the fish are already picking off the reef.
Where do Black Seabream live?
A warm-water eastern Atlantic sparid, native to these waters but historically rare in Ireland; rising sea temperatures have pushed numbers northward along the Irish coast in recent decades.
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