Fungal dermatitis in captive pinnipeds

Fungal dermatitis was diagnosed in two captive gray seals (Halichoerus gryp us) and four harbor seals (Phoca vitulina) between 1992 and 1994. Trichophy ton mentagrophytes. Malassezia spp., and Yarrowia (Candida) lipolytica were isolated. Erythematous, thickened, alopecic skin lesions were present on t he face and on the flippers, particularly around the nail bed. The two most important environmental factors associated with development of fungal derm atitis appeared to be excessive chlorination of pool water and warm water t emperature.