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Ragworm

A wriggling, active bait that is especially effective for flatfish, bass, and wrasse in estuaries and over sand.

Ragworm is one of the most effective live baits in shore sea angling, prized for the way it wriggles enticingly on the hook and releases scent into the water. It is particularly productive in estuaries and over sandy ground where flatfish, bass, and wrasse are the target.

Types of Ragworm

King Ragworm

King ragworm (Alitta virens) is the largest species, growing to 30–60 cm or more in productive estuaries. It is a powerful, aggressive worm with small pincers near the head that can give a surprisingly sharp nip — handle with care, gripping the worm firmly behind the head. King rag is a substantial bait and works well for bass, large wrasse, flounder, and even conger on smaller specimens.

Harbour Ragworm

Harbour ragworm (Hediste diversicolor) are much smaller — typically 5–15 cm — and are found in the upper reaches of estuaries in muddy ground near harbour walls and saltmarshes. They are an excellent bait for wrasse, mullet, and smaller flatfish. Present them singly or in bunches of two or three on a small hook.

Where to Find Ragworm

Both species are found in the intertidal and shallow subtidal zones of estuaries. King rag lives in firmer sandy or gravelly mud; harbour rag favours softer, muddier habitats. Ragworm can be dug at low tide using a bait fork, working around rocky margins and muddy shores.

Most tackle shops stock ragworm (often referred to simply as “rag”) alongside lugworm. They are typically sold by the dozen or half-dozen.

How to Hook Ragworm

Thread the hook through the head of the worm, pushing the hook point in just behind the mouth. Work the hook along the body of the worm, leaving the tail end hanging free to wriggle. The movement of a live ragworm on the hook is one of its greatest assets — it actively attracts fish by sight as well as scent.

For distance casting, use a small amount of bait elastic to secure the worm to the hook shank so it does not tear off under the force of the cast.

Storing Ragworm

Keep ragworm in a sealed container with damp seaweed or damp newspaper. Do not submerge them in fresh water — this will kill them quickly. Store in a cool place or in a cool box with ice. Ragworm stored correctly will remain lively for two to three days.

Effective Species

• Flounder — ragworm is arguably the single best bait for estuary flounder, especially in spring and autumn
• Bass — effective in estuaries and over sandy ground on a long flowing trace
• Wrasse — harbour ragworm is a traditional and highly effective wrasse bait, especially from rocky piers and headlands
• Mullet — small harbour ragworm on a fine float rig is the classic mullet bait in Irish harbours
• Sea trout — an underrated bait for sea trout in estuaries, fished on a fine trace

Ragworm is one of the best all-round baits for beginners fishing estuaries and sheltered coasts, combining strong scent, natural movement, and availability from tackle shops across Ireland.