In remote areas salary may be part of the package including a house and transport. The work is outside in all weathers and usually in isolated locations and in small teams. Hours are long at some times of the year and may involve regular weekend and evening duties and callouts. Fish farms also exist abroad eg Norway, S America. The work is physically demanding and can be very stressful at certain times of year.
Locations tend to be quite isolated.
You would most likely be working in a very small team. The majority of fish farm managers are male. Veterinary Science Zoology Agriculture A relevant degree may be useful but not essential. Practical skills and experience are essential. Numeracy is important for calculating feeding regimes, invoicing etc.