Bleak in United Kingdom — catches, stats & how to catch
The bleak is a small, silvery shoaling fish of the upper water layers, found throughout rivers and reservoirs and taken all summer on a light float rig. Map, top water bodies, and analytics — based on real angler reports.
Bite calendar for Bleak
The best days and hours to fish — a bite forecast factoring in pressure, wind, temperature, and the moon phase.
Open the bite forecast →Bleak bite forecast by region in United Kingdom
Description and behaviour
The bleak is one of the most abundant fish in rivers and reservoirs. Its narrow, strongly flattened body gleams silver with a greenish-blue back, and the lower jaw juts slightly forward — the fish is built to snatch food right at the surface.
It holds in tight shoals in the upper water layers: on lowland rivers these are slow-flowing reaches and stretches beneath steep banks, while on reservoirs it comes out over open water above the depths to hunt fallen insects and plankton. On hot days the shoal literally "boils" at the surface, breaking the smooth water with small splashes.
Spawning and seasons
The bleak's spawning is drawn out and takes place in batches from late May through July, once the water warms above 15–16 °C. Unlike many cyprinids, it does not shed its eggs in a single go but in several rounds one to two weeks apart, which is what makes the shoal active for so long.
In warmer southern regions spawning starts earlier and finishes by midsummer, while further north it shifts toward the end of June. Between spawning batches the bleak keeps feeding, so it hardly ever has the dead patches in the bite that bream or roach show.
When it bites
The main season for bleak runs from late spring to early autumn, when the water is warm and the fish stays near the surface. The best bite comes on calm, sunny days: from morning until late evening the shoal takes insects and small baits eagerly, whereas in overcast, windy weather it rises to the surface less often.
As the water cools in autumn the bleak drops deeper and bites noticeably worse, and in winter it almost stops feeding under the ice, gathering in deep holes. On most waters winter fishing for bleak is a rarity even among experienced anglers.
Methods and tackle
The main tackle is a light whip pole with a fine 0.08–0.12 mm line and a size 18–22 hook: the rig must be extremely sensitive to register the instant take at the surface. Use the lightest possible float with minimal shotting, and set the depth to the upper layer where the shoal holds.
A classic technique is fishing "on the strike": the angler tosses in a pinch of groundbait and strikes at the slightest movement of the float or line, without waiting for the usual dip under. On reservoirs the bleak is also caught successfully on a short poleless rig, working a small jig right at the surface.
Baits and lures
The best bait is a small maggot and a little piece of dendrobaena worm; bloodworm also works well, especially in cooler weather. Among plant baits the bleak takes a semolina "batter" and steamed pearl barley fairly well, though animal baits are almost always more productive.
Groundbait plays a key role: a light, clouding mix based on breadcrumb that creates a cloud of murk and slowly settling particles keeps the shoal at the swim for a long time. Add a little ground breadcrumb and vanilla to the mix — the bleak responds well to a slightly sweet aroma.
Playing and landing
The bleak barely resists when landed — the fish is light, and you strike with a short, sharp flick of the wrist, lifting the catch straight up out of the water without drawing it in to the bank. The main difficulty is not tearing the delicate lip with too hard a strike.
Tip: a caught bleak is often used as live bait for pike and zander — keep it in a roomy container of water, without overloading the bucket, or the fish will quickly die. On rivers, look for the shoal at the edge of the back-eddy behind a point or by bridge pilings, where drifting food collects.