We don’t clearly understand the ecological effects of commerical toothfish fishing in the Ross Sea region. To improve our knowledge, we conducted a survey of demersal (bottom-dwelling) fish species on the Ross Sea slope - particularly grenadiers and icefish - during the 2015 Antarctic Ecosystems Voyage.
The Southern Ocean is under-sampled. Data collected continuously during the Antarctic Ecosystems Voyagehelped fill an important knowledge gap about oceanographic and atmospheric processes in this important region.
The Ross Sea lies 3500 km south of New Zealand next to Antarctica. It encompasses the main fishing grounds for Antarctic toothfish, a species NIWA scientists are studying so that it can be fished sustainably.