Luckily, or perhaps just thankfully, there was help nearby and they're no longer on their own. The South Korean ice-breaker Araon has arrived to assist in making repairs and, temporarily at least, bring the fishing vessel's stability condition back to a point where they can make their way to safety.
The question, once the Sparta is safe, is what she was doing there in the first place?
The Sparta was in the Ross Sea off the Antarctic ice shelf fishing for Patagonian Toothfish, a species of sea bass which brings anywhere from US$50 - 60 per kg. In the process of her expedition she struck Antarctic ice and punched a significant hole in her hull well below the waterline. She has a second hole in her bulbous bow which is not expected to prevent her progress to a safe port.
This is "Gold Rush" fishing.
She was licensed to fish in the Antarctic closed ecosystem by the Commission on the Conservation of Antarctic Marine Living Resources.