Parasitic isopods on trout
- Zoology Department, University of Otago
Although parasitic Crustacea are not uncommon on migratory salmonids in the northern hemisphere, there appear to be no records of such an association in Australasia. A trout (Salmo trutta L.) was taken in Lake Waituna, Southland in April 1963 and seven parasitic isopods found attached to it. Three specimens were examined and identified as Nerocila orbigni (Gueren, 1832). The specimens were females and the lengths were 24, 28 and 28 mms.