Severity Scores General Appearance

Mild: No more than 10% of body

Moderate: Covering not more than 20% of body

Severe: Covering more than 20% of body, open

Mild: 1 mass under the skin / fins which is not affecting natural behaviour

Moderate: Multiple masses under the skin / fins which is not affecting natural behaviour

Severe: Multiple masses under the skin / fins and natural behaviour affected

Mild: *Protruding from body (raised)

Moderate: Protruding from body (raised), enlarged abdomen

Severe: Protruding from body (raised), red enlarged abdomen

Mild: Reduced body weight / thin compared to controls

Moderate: Body weight loss / thin, sunken abdomen compared to controls

Severe: Body weight loss /thin, sunken abdomen, and muscle loss - emaciation

Mild: Oedema - low level and highly localised fluid accumulation in tissue

Moderate: Oedema - increased fluid accumulation in one or many tissues

Severe: Oedema - high fluid accumulation in one or multiple tissues

Mild: Increased mucus layer, no more than 10% of the body, normal behaviour

Moderate: Increased mucus, more than 20% of the body, normal behaviour

Severe: Increased mucus, more than 20% of the body, abnormal behaviour

Mild: Decreased mucus layer causing dry area, no more than 10% of the body, normal behaviour

Moderate: Decreased Mucus, more than 20% of the body, normal behaviour

Severe: Decreased mucus of the body of more than 20%, abnormal behaviour

Mild: 1 under the skin / fins which is not affecting natural behaviour

Moderate: Multiple under the skin / fins which is not affecting natural behaviour

Severe: Multiple under the skin / fins and natural behaviour affected