“…The existence of a localized antibody response in fish has been widely proposed and studies of skin, intestine and bile (Ourth 1980, Lobb & Clem 1981a, b, St. LouisCormier et al 1984, Georgopoulou & Vernier 1986, Rombout et al 1986, Lobb 1987, Lumsden et al 1993) have supported such a possibility. ELISA results using skin mucus from tomato clownfish were almost completely negative with only one fish showing positive results.…”