Farmed fish welfare: an exploratory framework

[1] The ability to experience feelings (like pain)

[2] Lack of natural circumstances
(for instance regarding light and water quality)

[3] Too high density of fish; little space

[4] No protection against predators (in case of open air)

[5] Uneven distribution of food

[6] Diseases and bad health in general

[7] Discomfort during catching and transportation

[8] Inconvenience during other procedures (e.g. grading)

[9] Painful slaughter, especially if unstunned