Fishing: Which Fish Species in Ireland?

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Did you know? Ireland is a top destination for anglers! Thanks to its breathtaking landscapes, the perfect setting to reconnect with nature… and of course, an incredible variety of fish species! No matter where you cast your line—whether in the sea or freshwater—Ireland’s waters are rich and teeming with life, making it an ideal spot for fishing enthusiasts. The water quality here is outstanding, providing the perfect environment for fish to thrive.

But what can you expect to catch? Which fish species might you encounter? Here’s an overview of the main fish you can catch on the Emerald Isle.

The Top Fish Species in Ireland

Freshwater Fishing

1. Atlantic Salmon (Salmo salar)

Salmon fishing in Ballina – © BarbaraJackson – Pixabay

The Atlantic salmon is one of Ireland’s most iconic species. Known for its strength and fighting spirit, it offers an exciting challenge for anglers.

Where to fish: Moy, Blackwater, Corrib, Shannon, and Lee rivers.
Fishing season: February to September, with variations depending on the river.
Techniques: Fly fishing, light spinning, natural bait.

2. Brown Trout (Salmo trutta)

Native and widespread, brown trout are found in many Irish rivers and lakes.

Where to fish: Loughs Corrib, Mask, Sheelin, Melvin, and rivers Suir, Nore, Barrow.
Fishing season: Generally March to September.
Techniques: Dry fly, nymph, streamer fishing.

3. Sea Trout (Salmo trutta trutta)

A migratory variant of the brown trout, sea trout are highly prized for their fighting ability.

Where to fish: Slaney, Munster Blackwater, Bandon, Owenmore rivers.
Fishing season: February to September.
Techniques: Fly fishing, often in the evening or at night.

4. Pike (Esox lucius)

A pike – NERYX

An impressive predator, pike delivers thrilling action.

Where to fish: Loughs Erne, Derg, Ree, Corrib, and many other lakes.
Fishing season: Year-round, with best results in spring and autumn.
Techniques: Lure fishing, fly fishing, dead bait.

5. Perch (Perca fluviatilis)

Small but feisty, perch are ideal for coarse fishing.

Where to fish: Lakes and rivers throughout the country.
Fishing season: All year round.
Techniques: Light lure fishing, natural bait.

6. Tench (Tinca tinca)
Robust and sought after for its resilience.

Where to fish: Canals, ponds, and certain lakes such as the Grand Canal.
Fishing season: May to September.
Techniques: Coarse fishing with natural bait.

7. Bream (Abramis brama)

A bottom-dweller, popular among coarse anglers for its size and abundance.

Where to fish: River systems like the Shannon and various lakes.
Fishing season: All year round.
Techniques: Coarse fishing with groundbait.

Sea Fishing

1. European Sea Bass (Dicentrarchus labrax)

A popular sport fish, renowned for its fighting spirit.

Where to fish: South and west coasts, especially in Kerry, Cork, and Wexford counties.
Fishing season: May to October.
Techniques: Lure fishing, fly fishing, natural bait from shore or boat.

2. Pollack (Pollachius pollachius)

A powerful fish offering exciting sport fishing.

Where to fish: Rocky coastal areas and deep sea.
Fishing season: All year round.
Techniques: Lure fishing, jigging, trolling.

3. Cod (Gadus morhua)

A traditional Irish sea fish, valued for its flesh.

Where to fish: Deep sea, often on offshore boat trips.
Fishing season: All year round, with peaks in winter.
Techniques: Bottom fishing with natural baits like squid or herring.

4. Mackerel (Scomber scombrus)

Schooling and abundant in summer, mackerel are perfect for beginners.

Where to fish: Along the Irish coast, from piers and boats.
Fishing season: May to September.
Techniques: Line fishing with feathers or small lures.

5. Ray (Raja spp.)

Several ray species are present, offering varied fishing experiences.

Where to fish: Sandy bays and estuaries, such as Galway Bay.
Fishing season: May to September.
Techniques: Bottom fishing with baits like fish or squid.

6. Conger Eel (Conger conger)

A large eel, providing a real challenge due to its strength.

Where to fish: Rocky areas, wrecks, and harbours.
Fishing season: All year round, best in warmer months.
Techniques: Bottom fishing with strong baits like sardine.

7. Bluefin Tuna (Thunnus thynnus)

Seasonally present in Irish waters, bluefin tuna is among the most powerful fish.

Where to fish: Offshore Atlantic coasts, especially around Cork and Kerry.
Fishing season: July to October.
Techniques: Trolling, natural bait, usually on guided trips.

Tips and Regulations

Don’t forget your fishing permit!

For freshwater fishing, a national license is required for salmon and sea trout. For other species, local permits may be necessary.

For sea angling, no permit is needed for recreational sea fishing. However, some protected species or specific areas may have restrictions.

Most importantly:

Respect minimum legal sizes, catch quotas, and closed seasons for each species.
Catch and release is strongly encouraged for vulnerable species, especially salmon and bluefin tuna.
Check with Inland Fisheries Ireland or local authorities for up-to-date regulations.

Always practice responsible fishing to help preserve aquatic ecosystems. Use barbless hooks to minimize injury to fish. Avoid disturbing natural habitats and respect local wildlife and flora.