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Bacterial 🟠 Severe ✓ Treatable

Tenacibaculosis

🦠 Tenacibaculum maritimum (formerly Flexibacter maritimus) · Flavobacteriaceae

📋 Definition

A marine bacterial disease causing extensive superficial ulcerative lesions on the skin, fins, and mouth of marine fish.

📊 Key Facts

Causative Agent
Tenacibaculum maritimum (formerly Flexibacter maritimus)
Agent Family
Flavobacteriaceae
Peak Mortality
50%
Onset to Peak
1–2 weeks
Geographic Range
Worldwide in marine aquaculture
Transmission Routes
Water-borne, surface injuries
Primary Host
Turbot, Sea Bass, Sole, Atlantic Salmon (marine)
Treatment
✓ Available
Vaccine
✗ None / Experimental
First Described
1984

🩺 Clinical Signs

Extensive superficial skin erosions and ulcers, especially around mouth ("mouth rot"), fin erosion, loss of scales, tissue necrosis.

🔬 Symptoms

🔬
Oral erosion (mouth rot)
Digestive Acute
🔬
Extensive skin ulceration
Integumentary Acute
🔬
Fin erosion
Integumentary Subacute

🧪 Diagnosis

Wet mount (long gliding rods), culture on Anacker and Ordal medium, PCR.

💊 Treatment

Florfenicol, potassium permanganate baths, oxytetracycline.

🛡️ Prevention

ℹ️ Prevention is the most effective strategy for managing this disease in aquaculture and aquarium settings.
Avoid skin damage during handling, maintain good water quality.