Skip to main content

Swimming performance, oxygen consumption and excess post-exercise oxygen consumption in adult transgenic and ocean-ranched coho salmon

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

Routine oxygen consumption (Mo2) was 35% higher in 1 day starved and 21% higher in 4 day starved adult transgenic coho salmon Oncorhynchus kisutch relative to end of migration ocean-ranched coho salmon. Critical swimming speed (Ucrit) and Mo2 at Ucrit (Mo2max) were significantly lower in 4 day starved transgenic coho salmon (1·25 BL s−1; 8·79 mg O2 kg−1 min−1) compared to ocean-ranched coho salmon (1·60 BL s−1; 9·87 mg O2 kg−1 min−1). Transgenic fish swam energetically less efficiently than ocean-ranched fish, as indicated by a poorer swimming economy at Ucrit (Mo2max ). Although Mo2max was lower in transgenic coho salmon, the excess post-exercise oxygen consumption (EPOC) measured during the first 20 min of recovery was significantly larger in transgenic coho salmon (44·1 mg O2 kg−1) compared with ocean-ranched coho salmon (34·2 mg O2 kg−1), which had a faster rate of recovery.

Keywords: EPOC; Ucrit; growth hormone; oxygen consumption; salmon; transgenic

Document Type: Regular Paper

DOI: https://doi.org/10.1046/j.1095-8649.2003.00057.x

Affiliations: 1: Biological Sciences, Simon Fraser University, Burnaby, B.C., V5A 1S6, Canada 2: Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, B.C., V7V 1N6, Canada

Publication date: 2003-04-01

  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more