Chub (*Squalius cephalus*) are one of the UK's most adaptable freshwater fish and have become an increasingly popular target for fly anglers. Found in rivers, streams, canals and some stillwaters throughout much of Britain, they are renowned for their cautious nature, opportunistic feeding habits and surprising fighting ability.
Although traditionally associated with coarse fishing, chub are ideally suited to fly fishing because they readily feed from both the surface and below it. Their willingness to take dry flies, nymphs and streamers makes them one of the most versatile species available to the fly angler.
Chub are opportunistic omnivores. Their diet changes throughout the year and can include aquatic insects, caddis larvae, freshwater shrimp, snails, worms, terrestrial insects, berries, seeds, crayfish and small fish. This varied diet explains why they can be caught using such a wide range of fly patterns.
One of the most exciting aspects of fly fishing for chub is surface fishing. During the warmer months they often patrol beneath overhanging trees waiting for beetles, ants, caterpillars, grasshoppers and other terrestrial insects to fall into the water. Their confident surface takes can rival those of brown trout and often take anglers by surprise.
Although dry flies provide spectacular sport, nymphs are equally effective throughout much of the season. Hare's Ear nymphs, Pheasant Tails, caddis imitations and freshwater shrimp patterns all imitate food that chub encounter naturally.
Larger streamers can also be highly successful, particularly when targeting specimen fish that have developed a taste for small fish. In rivers where chub and Atlantic salmon share the same water, large chub are regularly caught accidentally by salmon anglers fishing traditional swung flies. These captures demonstrate just how predatory bigger chub can become under the right conditions and explain why baitfish imitations can be so effective when targeting specimen fish.
Unlike trout, chub are frequently found close to cover. Undercut banks, trailing branches, fallen trees, bridge supports, reed beds and deeper glides all provide security while allowing fish to intercept drifting food. Accurate casting is therefore particularly important, as the best fish are often holding only inches from obstacles.
Stealth plays a major role in successful chub fishing. Large fish are extremely aware of movement and vibration, especially in clear water. Careful wading, a low profile and accurate presentation often make the difference between success and watching a fish disappear before the fly reaches it.
A 4-weight to 6-weight fly rod is suitable for most chub fishing, depending on the size of the river and the flies being used. Floating fly lines cover the majority of situations, allowing anglers to fish dry flies, nymphs and small streamers effectively. Balanced tackle helps achieve delicate presentations while still providing enough power to control larger fish around bankside cover.
At Peaks Fly Fishing, we recommend approaching chub much like wild brown trout. Observation, careful presentation and matching the natural food available are usually more productive than constantly changing flies. A relatively small selection of proven patterns will cover the vast majority of situations throughout the season.
Chub fight well on fly tackle, making powerful runs towards submerged branches and other structure in an attempt to escape. Although they lack the speed of trout, their strength and determination often surprise anglers encountering them for the first time.
For anglers looking to broaden their fly fishing beyond traditional game species, chub offer an excellent opportunity. They are widely distributed, willing to take a fly for much of the year and reward thoughtful, accurate fishing. Their combination of intelligence, adaptability, exciting surface takes and surprisingly predatory behaviour makes them one of the UK's most enjoyable and underrated fly fishing species.