summary
- Oblada melanura, locally known as “doblás,” have started biting swimmers in the Vega Baja, especially in Torrevieja’s beaches.
- This species was traditionally harmless, but recent years show a change with the fish biting especially sensitive areas such as varicose veins and wounds.
- The behavior is documented not onyl in Torrevieja but also in Benidorm and Vila Joiosa, affecting mainly older bathers or those with skin imperfections.
- Scientific reasons are still speculative, with climate change and rising sea temperatures suspected as factors increasing fish metabolism and aggressiveness.
- Incidents have caused minor injuries managed by local lifeguards,but no serious medical consequences have been reported.
- The presence of “doblás” remains common in shallow, calm waters near urban beaches where many elderly bathers frequent.
Unusual Biting Behavior by “Doblás” Fish Alarms Swimmers on Vega Baja Beaches
For years,the oblada melanura,commonly known as “doblás” in the Vega Baja region,have been a favorite among recreational fishermen for their tasty meat resembling that of the gilthead sea bream. Recognizable by their distinctive black spot near the tail (“melanura” means “black tail” in Greek), these fish were always considered harmless to swimmers – until recently.
From kind Curiosity to Bite Incidents
Traditionally, doblás are shy, shallow-water fish that feed on small crustaceans, worms, and juvenile fish. Thanks to their curious nature, they often swim close to bathers in calm, clear waters, offering a charming glimpse of marine life in places like Playa del Cura in Torrevieja.
However, over the past few years, beachgoers have reported a sudden change: doblás have started to bite humans. Unlike typical fish that might nip occasionally, these bites are caused by the fish’s sharp rows of incisors and canine-like teeth, tiny but surprisingly effective.
Where Are Biting Incidents Happening?
While Torrevieja’s beaches have become known for these bite occurrences, other popular tourist spots such as Benidorm and Vila Joiosa have also seen a rise in similar reports this summer. The doblás seem to target specific areas on the legs and feet of bathers, especially:
- Varicose veins
- Warts and moles
- Minor skin abrasions or open wounds
These spots reportedly attract the fish, causing not only surprise but mild discomfort to those affected.
Who is Most at Risk?
Local lifeguard teams confirm that most bites have been recorded on older swimmers, particularly those over 65 or individuals with fragile skin or circulatory issues.People undergoing anticoagulant treatments, such as with Sintróm, might experience heightened reactions, although no severe injuries have been reported.
What Do Local Authorities Say?
Lifeguards in Torrevieja report providing minor first aid to victims-typically just simple dressings and calm reassurance. These incidents, while unpleasant, remain largely anecdotal and have not led to widespread alarm or beach closures.
What could Be Causing this Change in Behavior?
the sudden shift in doblás behavior puzzles scientists and beach managers alike. Even though formal studies on the phenomenon are lacking,some hypotheses include:
- Rising sea temperatures: With summer waters reaching temperatures close to 30°C,fish metabolism could accelerate,leading to increased feeding activity and aggression.
- Changes in fish diet or competition: Possibly due to environmental disturbances affecting food availability, doblás might be seeking new food sources.
- Increased human presence: more swimmers and shallower, calm swimming zones might potentially be encouraging closer fish interactions and risk of bites.
understanding the Doblas – A Key Species in Alicante’s Coastal Ecosystem
The doblás fish is a common member of Alicante’s marine biodiversity. They dwell in coastal waters frequently enough carpeted with posidonia seagrass,which is crucial for a balanced habitat. Their presence alongside other species such as the vivid blue dragon and occasionally hazardous Portuguese man o’ war jellyfish often stokes a mix of fascination and fear among beachgoers.
Swift Facts About Oblada Melanura (“Doblás”)
| Characteristic | Details |
|---|---|
| Common name | Doblás |
| Scientific name | Oblada melanura |
| size | Up to 30 cm, special specimens over 20 cm notable |
| Distribution | Shallow coastal waters of the Mediterranean, especially Alicante province |
| diet | Crustaceans, worms, fish larvae |
| Recent behavior | Started biting bathers, targeting varicose veins and wounds |
How to Protect yourself and Enjoy the Beaches
If you plan to enjoy a dip in the waters of Torrevieja, Benidorm, or Vila Joiosa this summer, here are a few tips to stay safe and comfortable:
- Avoid areas if you have open wounds or varicose veins exposed.
- Wear protective water shoes to minimize risk of bites.
- Use sunscreen on healthy skin but avoid scratching or irritating any sensitive spots.
- Stay informed about local beach advisories and lifeguard recommendations.
- If bitten,clean the area with fresh water and seek help at the nearest lifeguard station if you notice swelling or discomfort.
Conclusion
The once innocent oblada melanura has somewhat altered its behavior in recent years, introducing a new dynamic to the coastal experience in southern Alicante. While their bites cause more surprise than harm, they remind us of changing marine ecosystems and environmental challenges. Scientists and local authorities continue to monitor the situation, hoping to better understand and manage these interactions between humans and marine life.
Despite occasional complaints from swimmers, the doblás remain an iconic part of the Mediterranean’s underwater world, providing both intrigue and a gentle warning to respect the sea and its creatures.
Sources
- Información – Doblas Attack on Torrevieja Beaches (2025)
- La Vanguardia – Fish Bites in Valencian Beaches (2023)