Imagine enjoying a refreshing swim, only to be struck by an intense, immobilising pain. This unsettling experience is becoming increasingly common for beachgoers along Spain’s coasts, as the fire worm makes its unwelcome presence felt.
Over the past month, authorities in the Canary Islands, particularly in Arucas, have issued warnings about this potentially dangerous marine invertebrate, placing signs on beaches to alert the public.
What is the fire worm?
The fire worm, scientifically known as Hermodice carunculata, is a marine creature. It is native to tropical and subtropical waters, including the Caribbean, the western Atlantic, and the Mediterranean. This segmented worm can grow up to 30 centimetees in length. Its most distinctive feature is its bristling, white or translucent dorsal setae, which are highly venomous. The fire worm’s name stems from the intense burning sensation it causes upon contact with human skin.
Habitat and spread
Fire worms typically reside in warm, rocky areas, coral reefs, and sandy seabeds, where they feed on corals, sponges, and other small marine invertebrates. They are most active at night, emerging from their hiding spots to hunt for food. In recent years, the range of the fire worm has expanded, likely due to climate change and rising sea temperatures. This spread is concerning, as the fire worm’s voracious appetite can damage delicate ecosystems like coral reefs.
Dangers and symptoms
The primary danger posed by the fire worm lies in its venomous bristles. When these bristles pierce the skin, they release toxins that cause intense burning pain, redness, and swelling. In some cases, the affected area may develop blisters or small wounds. If not properly treated, the bristles can lead to prolonged inflammation or even serious infections. Individuals with sensitive skin or allergies are at risk of more severe symptoms, including difficulty breathing or anaphylactic reactions.
Prevention and first aid
To protect yourself from fire worm stings, it’s crucial to take preventive measures and know how to respond if stung. Here are some key tips:
Prevention:
- Avoid touching the seabed without proper protection, such as gloves.
- Stay alert while swimming, snorkeling, or diving.
- Keep a safe distance from any fire worms you spot.
First aid:
- Do not rub the affected area, as this can drive the bristles deeper into the skin.
- Rinse the area with seawater; avoid using fresh water initially, as it can release more toxins.
- Carefully remove the bristles using tweezers or adhesive tape.
- Apply cold compresses to reduce pain and swelling.
- Seek medical attention if symptoms persist or worsen.
While the pain from a fire worm sting can be severe, most cases are not life-threatening and can be effectively managed with proper care. As the presence of these creatures continues to grow along Spain’s coastlines, awareness and caution are key to ensuring a safe and enjoyable beach experience.
Also read: How Argentine fireflies threaten Spanish soil health