Pollan
Pollan are a glacial relict whitefish found nowhere in Western Europe outside Ireland. In the UK, only Lough Neagh in Northern Ireland holds a significant population — large enough to support a small licensed commercial net fishery.
They are rarely caught by rod anglers, but their presence signals a healthy, cold, clean lake system. Their closest British relatives are the powan, gwyniad, schelly, and vendace.
Scientific Name: Coregonus pollan
Also known as Irish pollan
- Slim, silvery body with a blue-green back — strongly herring-like in shape, but the small fleshy adipose fin between the dorsal and tail fin marks it as a member of the salmon family.
- Small mouth with tiny, barely-there teeth; large eyes; moderately sized scales and a deeply forked tail.
- Most adults run 20–30 cm; the different Coregonus species are notoriously hard to tell apart without knowing which lake the fish came from.
What to know
Habitat Distribution
- Endemic to Ireland — the only UK population of any size is in Lough Neagh, Northern Ireland, the largest lake in the UK.
- A smaller, severely declined population persists in Lower Lough Erne, also in Northern Ireland.
- A glacial relict: pollan entered Irish lake systems roughly 14,000 years ago as Arctic cisco following retreating ice, then became landlocked as sea levels rose.
- Prefer deep, cold, well-oxygenated open water; move to shallow gravel only to spawn in winter.
Key Locations
- Lough Neagh, Northern Ireland — the only UK population of significant size; supports a licensed commercial net fishery and occasional fly-rod encounters in sheltered bays.
- Lower Lough Erne, Northern Ireland — a historically present population that has declined sharply in recent decades.
Specific Spots
- Open, deep pelagic water is their default zone — they school mid-water rather than holding near bottom structure or weed.
- Shallow gravel margins draw fish during winter spawning; outside that window, expect them well offshore in the main basin.
- On Lough Neagh, shoals have been observed moving into sheltered bays on summer evenings — gull activity over the water is a reliable surface sign of a feeding shoal below.
Pollan FAQ
Answers from onWater's species guide.
What are the best lures and bait for Pollan?
No conventional bait or lure reliably catches pollan, their zooplankton diet means standard presentations are largely ignored.
What flies work for Pollan?
Small wet flies, size 16, in dark or black patterns fished as a team of three on a floating line, the specific pattern appears to matter less than size and presentation during an active surface shoal. These loosely imitate small drifting invertebrates.
When is the best time to fish for Pollan?
Summer evenings (roughly June to November) are the window when shoals occasionally move into shallow bays and become accessible to fly anglers. Winter (November to January) is spawning time on shallow gravel, fish are present inshore but should not be targeted during this period.
How do you catch Pollan?
Pollan are not a practical rod-and-line target. The only documented recreational method is watching for gulls working over summer-evening shoals in sheltered bays on Lough Neagh, then covering the shoal quickly with a team of small wet flies before it moves on.
What do Pollan eat?
Pollan feed almost exclusively on zooplankton, tiny drifting invertebrates, which is why conventional baits and lures are almost always ignored. There is no practical lure or bait category that reliably imitates zooplankton at fishing scale.
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