I have family working as a UN advisor on sustainable food chains and she says the entire ecosystem in the oceans could potentially collapse in 10 to 20 years if we don't stop large scale fishing entirely, especially trawl and unreported fishing destroying the seafloor and acidity going haywire.

I have no idea if this is correct but i'm pretty sure around 1 billion rely on this food and can't imagine what would happen if this somehow got removed from the system.

Does anyone know if it's really that bad?