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Tube Worm

Diopatra neapolitana

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The Chemical Agent of the Seabed

The Tube Worm (also known locally as the Iodine Worm due to its smell) is a bait that, as its nickname suggests, has a particular characteristic: it smells strongly of iodine.

This distinctive smell makes it irresistible, especially at night, as it creates a strong olfactory trail in the water.
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🔍 Description and Characteristics
It is a long worm that lives inside a leathery tube, which it builds from mucus and mud.

To bait it, we must carefully remove it from this protective casing. Its body is soft, slimy, and brownish-red.
🪝 Baiting Technique and Equipment
It is a bait that requires care due to its soft nature.

Extraction: We carefully squeeze the tube from one end to slide the worm out, like toothpaste, or cut the tube with small scissors.

Baiting: It is cut into pieces. A baiting needle is essential, but even more critical is to be gentle with our movements, as it breaks easily.

Support: Due to its slimy texture, it can slide and bunch up on the hook.

A little elastic thread or a small stop on the leader line can help keep it in place.
🎣 Targets and Catches
The Tube Worm is excellent for night fishing (Surfcasting/Beach Ledgering).

White Seabreams and Saddled Seabreams are very attracted to its smell.

It is an excellent bait for Sand Steenbras on sandy bottoms.

Also, various rock fish (Scorpionfish, Combers) will attack it immediately.
⚖️ Pros and Cons
Positives: The intense iodine smell is unique and attracts fish from afar, even in murky waters or total darkness.

Negatives: It is very soft and sensitive. It does not withstand powerful casts, and small fish can quickly destroy it.

Also, it's mucus stains hands and tools.
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