Figure 23 Some nototheniid fish native to the Southern Ocean that have been studied in the laboratory. (a) The antarctic silver fish (Pleuragramma antarcticum) 12–17 cm long; (b) Notothenia neglecta 25–40 cm long. (c) The emerald rockcod (Trematomus bernacchii) about 20 cm long, (d) The toothfish (Dissostichus mawsoni) up to 1.25 m long, is the largest fish in antarctic coastal waters. (e) The icefish (Chaenocephalus aceratus) up to 1 m long