[BenjiWiebe]

Some skimming of Wikipedia suggests that our total annual krill harvest is about 1/950th of the amount that predators eat of the main krill species per year.

Also usually the smaller the animal / the farther down the food chain, the faster they reproduce. And some more reading of Wikipedia suggests that krill can reproduce very quickly.

[codr7]

That's one perspective.

I worked at a Norwegian company that ran 5 huge ships gulping krill 24/7 in the arctic region.

Once you see the scale of operation, it becomes pretty obvious it's a problem, and I'm pretty sure those numbers are manipulated to hide it.