How do fish in the Southern Ocean keep from freezing?

About the Cruise

The ICEFISH 2004 Cruise was considered to be the first comprehensive international survey of the fishes of the Sub-Antarctic marine habitat. In a world experiencing changes in global climate, loss of biological diversity, and depletion of marine fisheries, the Antarctic, Sub-Antarctic and their biota offer compelling natural laboratories for understanding the evolutionary impacts of these processes.

From May through July of 2004, a team of researchers collected specimens of lower latitude fishes in order to relate the evolution, physiology, biochemistry and population dynamics of high-latitude Antarctic fishes of the suborder Notothenioidei to the transitional fish fauna of the Sub-Antarctic. This work has and will continue to contribute to development of a baseline understanding of these sensitive ecosystems, one against which future changes in species distribution and survival may be evaluated judiciously.