How pumping and crowding affects pre-smolt salmon

摘要

This issue was the subject of a paper presented by Asa Maria Espmark at the Aquaculture Europe meetings held recendy in San Sebastian, Spain. Espmark and her colleagues, J. Kolarevic, PHI. Aas-Hansen, J. Nilsson, and L. Speilberg, examined how repeated crowding and pumping of salmon pre-smolts over a period of five weeks in fresh water affected their performance after transfer to sea water. The researchers also examined how sedation (AQUI-S, New Zealand Ltd.) during pre-smolt handling might affect fish performance during the seawater production phase.