... volume occupied by mitochondria is significantly lower in hearts of the red-blooded notothenioid Notothenia coriiceps (18.18±0.69%) in comparison with those of the icefish Chaenocephalus aceratus (36.53±2.07%), which lacks both Hb and cardiac Mb. Mitochondrial densities are not different between hearts...

...Craig E. Franklin; Ian A. Johnston ABSTRACT Escape responses (C-shaped fast-starts) were filmed at 500 frames s −1 in the Antarctic rock cod ( Notothenia coriiceps ) at 0 °C. The activation and strain patterns of the superficial fast myotomal muscle were measured simultaneously using...

... elastic modulus (rigidity) increased markedly with decreasing temperature, and the dependence was similar if temperature was varied acutely in vitro or if cells were measured at normal body temperatures. Red cells from trout and Notothenia coriiceps had almost equal membrane rigidity at comparable...

... measured from species living at other temperatures: Notothenia coriiceps from Antarctica (-1.5 to +1°C); summer-caught Myoxocephalus scorpius from the North Sea (10–15°C); and Oreochromis andersoni from African lakes and rivers (22–30°C). State 3 respiration rates had Q 10 values in the range 1.8–2.7...