Fish of Ireland
Countless lakes, short lively rivers and an ocean that never freezes: Ireland owes its reputation as a fishing destination to a rare mix of mildness and abundance.
59 species documented
The oceanic climate moderates everything. Winters stay mild and summers cool, which keeps water within a favourable temperature band for much of the year — where countries at similar latitudes see their waters freeze or overheat. The season is long, with few genuinely dead periods.
The country is covered in loughs, often shallow and rich, linked by short rivers. That layout favours stillwater species and migratory fish, which have only a few tens of kilometres to travel between the sea and their spawning grounds.
The west coast, fully exposed to the Atlantic, offers rock that drops away quickly and shore fishing known for its variety. It is also the frontage most subject to swell, and the sea state often decides whether the trip happens at all.
Saltwater50

Albacore
Thunnus alalunga
Big pelagics· 140 cm

American plaice
Hippoglossoides platessoides
Flatfish· 83 cm

Atlantic bonito
Sarda sarda
Big pelagics· 91.4 cm

Atlantic cod
Gadus morhua
Bottom fish· 200 cm

Atlantic horse mackerel
Trachurus trachurus
Big pelagics· 70 cm

Atlantic mackerel
Scomber scombrus
Big pelagics· 60 cm

Atlantic pomfret
Brama brama
Big pelagics· 100 cm

Atlantic salmon
Salmo salar
Salmonids· 150 cm

Bigeye tuna
Thunnus obesus
Big pelagics· 250 cm

Black seabream
Spondyliosoma cantharus
Coastal· 60 cm

Blue shark
Prionace glauca
Sharks & rays· 400 cm

Brill
Scophthalmus rhombus
Flatfish· 75 cm

Bullet tuna
Auxis rochei
Big pelagics· 50 cm

Common dab
Limanda limanda
Flatfish· 40 cm

Common sole
Solea solea
Flatfish· 70 cm

European conger
Conger conger
Predators· 300 cm

European eel
Anguilla anguilla
Migratory· 130 cm

European flounder
Platichthys flesus
Flatfish· 60 cm

European hake
Merluccius merluccius
Bottom fish· 140 cm

European plaice
Pleuronectes platessa
Flatfish· 100 cm

European seabass
Dicentrarchus labrax
Coastal· 103 cm

European Smelt
Osmerus eperlanus
Migratory· 30 cm

Frigate tuna
Auxis thazard
Big pelagics· 65 cm

Haddock
Melanogrammus aeglefinus
Bottom fish· 112 cm

John Dory
Zeus faber
Coastal· 90 cm

Lemon sole
Microstomus kitt
Flatfish· 65 cm

Lesser spotted dogfish
Scyliorhinus canicula
Sharks & rays· 100 cm

Ling
Molva molva
Bottom fish· 200 cm

Megrim
Lepidorhombus whiffiagonis
Flatfish· 60 cm

Nursehound
Scyliorhinus stellaris
Sharks & rays· 170 cm

Opah
Lampris guttatus
Big pelagics· 101 cm

Piked dogfish
Squalus acanthias
Sharks & rays· 160 cm

Pilotfish
Naucrates ductor
Coastal· 70 cm

Pollack
Pollachius pollachius
Bottom fish· 130 cm

Poor cod
Trisopterus minutus
Bottom fish· 40 cm

Porbeagle
Lamna nasus
Sharks & rays· 350 cm

Pouting
Trisopterus luscus
Bottom fish· 46 cm

Saithe
Pollachius virens
Bottom fish· 130 cm

Shortfin mako
Isurus oxyrinchus
Sharks & rays· 445 cm

Skipjack tuna
Katsuwonus pelamis
Big pelagics· 110 cm

Smooth-hound
Mustelus mustelus
Sharks & rays· 200 cm

Starry smooth-hound
Mustelus asterias
Sharks & rays· 154 cm

Swordfish
Xiphias gladius
Big pelagics· 455 cm

Thicklip grey mullet
Chelon labrosus
Coastal· 75 cm

Tope shark
Galeorhinus galeus
Sharks & rays· 193 cm

Turbot
Scophthalmus maximus
Flatfish· 100 cm

Wahoo
Acanthocybium solandri
Big pelagics· 250 cm

Whiting
Merlangius merlangus
Bottom fish· 91.5 cm

Wreckfish
Polyprion americanus
Coastal· 210 cm

Yellowfin tuna
Thunnus albacares
Big pelagics· 239 cm
Freshwater9

Brown trout
Salmo trutta fario
Salmonids· 60 cm

Common dace
Leuciscus leuciscus
Carp & coarse· 40 cm

European perch
Perca fluviatilis
Predators· 50 cm

Freshwater bream
Abramis brama
Carp & coarse· 82 cm

Northern pike
Esox lucius
Predators· 137 cm

Rainbow trout
Oncorhynchus mykiss
Salmonids· 123 cm

Roach
Rutilus rutilus
Carp & coarse· 50 cm

Rudd
Scardinius erythrophthalmus
Carp & coarse· 45 cm

Tench
Tinca tinca
Carp & coarse· 60 cm
Species list
| Name | Scientific name | Max size | Best months |
|---|---|---|---|
| Albacore | Thunnus alalunga | 140 cm | Mar–Sep |
| American plaice | Hippoglossoides platessoides | 83 cm | May–Oct |
| Atlantic bonito | Sarda sarda | 91.4 cm | Mar–Nov |
| Atlantic cod | Gadus morhua | 200 cm | Oct–Apr |
| Atlantic horse mackerel | Trachurus trachurus | 70 cm | Jun–Nov |
| Atlantic mackerel | Scomber scombrus | 60 cm | Apr–Sep |
| Atlantic pomfret | Brama brama | 100 cm | Sep–Feb |
| Atlantic salmon | Salmo salar | 150 cm | Mar–Nov |
| Bigeye tuna | Thunnus obesus | 250 cm | Sep–Feb |
| Black seabream | Spondyliosoma cantharus | 60 cm | Mar–Nov |
| Blue shark | Prionace glauca | 400 cm | Jun–Nov |
| Brill | Scophthalmus rhombus | 75 cm | Apr–Oct |
| Brown trout | Salmo trutta fario | 60 cm | Apr–May |
| Bullet tuna | Auxis rochei | 50 cm | Mar–Nov |
| Common dab | Limanda limanda | 40 cm | Mar–Nov |
| Common dace | Leuciscus leuciscus | 40 cm | Mar–Oct |
| Common sole | Solea solea | 70 cm | Mar–Nov |
| European conger | Conger conger | 300 cm | Jun–Nov |
| European eel | Anguilla anguilla | 130 cm | Mar–Nov |
| European flounder | Platichthys flesus | 60 cm | Mar–Nov |
| European hake | Merluccius merluccius | 140 cm | Mar–Nov |
| European perch | Perca fluviatilis | 50 cm | Sep–Oct |
| European plaice | Pleuronectes platessa | 100 cm | Mar–Oct |
| European seabass | Dicentrarchus labrax | 103 cm | Jun–Oct |
| European Smelt | Osmerus eperlanus | 30 cm | Sep–Apr |
| Freshwater bream | Abramis brama | 82 cm | Apr–Oct |
| Frigate tuna | Auxis thazard | 65 cm | Year-round |
| Haddock | Melanogrammus aeglefinus | 112 cm | Sep–Apr |
| John Dory | Zeus faber | 90 cm | Mar–Nov |
| Lemon sole | Microstomus kitt | 65 cm | Apr–Oct |
| Lesser spotted dogfish | Scyliorhinus canicula | 100 cm | Mar–Nov |
| Ling | Molva molva | 200 cm | Year-round |
| Megrim | Lepidorhombus whiffiagonis | 60 cm | Apr–Nov |
| Northern pike | Esox lucius | 137 cm | Sep–Nov |
| Nursehound | Scyliorhinus stellaris | 170 cm | Mar–Nov |
| Opah | Lampris guttatus | 101 cm | Mar–May, Sep–Nov |
| Piked dogfish | Squalus acanthias | 160 cm | Sep–May |
| Pilotfish | Naucrates ductor | 70 cm | Jun–Nov |
| Pollack | Pollachius pollachius | 130 cm | Sep–Apr |
| Poor cod | Trisopterus minutus | 40 cm | Mar–Nov |
| Porbeagle | Lamna nasus | 350 cm | Mar–Nov |
| Pouting | Trisopterus luscus | 46 cm | Mar–Nov |
| Rainbow trout | Oncorhynchus mykiss | 123 cm | Mar–Nov |
| Roach | Rutilus rutilus | 50 cm | Mar–Oct |
| Rudd | Scardinius erythrophthalmus | 45 cm | Mar–Nov |
| Saithe | Pollachius virens | 130 cm | Sep–May |
| Shortfin mako | Isurus oxyrinchus | 445 cm | Mar–Nov |
| Skipjack tuna | Katsuwonus pelamis | 110 cm | Mar–Nov |
| Smooth-hound | Mustelus mustelus | 200 cm | Mar–Nov |
| Starry smooth-hound | Mustelus asterias | 154 cm | Mar–Nov |
| Swordfish | Xiphias gladius | 455 cm | Mar–Nov |
| Tench | Tinca tinca | 60 cm | Jul–Aug |
| Thicklip grey mullet | Chelon labrosus | 75 cm | Year-round |
| Tope shark | Galeorhinus galeus | 193 cm | Mar–Nov |
| Turbot | Scophthalmus maximus | 100 cm | Apr–Oct |
| Wahoo | Acanthocybium solandri | 250 cm | Mar–Aug |
| Whiting | Merlangius merlangus | 91.5 cm | Oct–Apr |
| Wreckfish | Polyprion americanus | 210 cm | Mar–Nov |
| Yellowfin tuna | Thunnus albacares | 239 cm | Jun–Aug |