Available for use in the Library and copying in accordance with the Copyright Act 1968, as amended. Thesis (PhD)--University of Tasmania, 2009. Includes bibliographical references. Ch. 1. General introduction -- Ch. 2. Phosphorus requirement of Atlantic salmon (Salmo salar L.) at an elevated temperature in freshwater -- Ch. 3. Phosphorus requirement of Atlantic salmon (Salmo salar L.) at an elevated temperature in seawater -- Ch. 4. Phosphorus metabolism of Atlantic salmon (Salmo salar L.) post-smolts at two different temperatures -- Ch. 5. Applicability of gene expression profiling to assess phosphorus requirements of Atlantic salmon (Salmo salar L.) post-smolts at an elevated temperature -- Ch. 6. General discussion