Factory-farmed chickens, turkeys and cattle all suffer in fundamentally similar ways. So, it turns out, do fish. We tend not to think of fish and land animals in the same way, but “aquaculture” – the intensive rearing of sea animals in confinement – is essentially under- water factory farming.
The Handbook of Salmon Farming, an industry how-to book, details six “key stressors in the aquaculture environment”: “water quality”, ”crowding”, “handling”, ”disturbance”, ”nutrition” and ”hierarchy”. To translate into plain language, those six sources of suffering for salmon are: water so fouled that it makes it hard to breathe; crowding so intense that animals begin to cannibalise one another; handling so invasive that physiological measures of stress are evident a day later; disturbance by farmworkers and wild animals; nutritional deficiencies that weaken the immune system; and the inability to form a stable social hierarchy, resulting in more cannibalisation. These problems are typical. The handbook calls them “integral components of fish farming”….
Ocean Sentry