Please Note:

The Open Access Repository has moved to a new authentication system as of the 1st of November.

Account holders will now be able to login using their University of Tasmania credentials.
If you have trouble logging in please email us on E.Prints@utas.edu.au so we can assist you.

Public users can still access the records in this repository as normal

Open Access Repository

Effect of an acute necrotic bacterial gill infection and feed deprivation on the metabolic rate of Atlantic salmon Salmo salar

Downloads

Downloads per month over past year

Jones, MA and Powell, MD and Becker, J and Carter, CG (2007) Effect of an acute necrotic bacterial gill infection and feed deprivation on the metabolic rate of Atlantic salmon Salmo salar. Diseases of Aquatic Organisms, 78 (1). pp. 29-36. ISSN 0177-5103

[img] PDF
4039.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

In this study, experiments were conducted to examine the effect of an acute necrotic
bacterial gill infection on the metabolic rate (MO2) of Atlantic salmon Salmo salar. Fed and unfed
Atlantic salmon smolts were exposed to a high concentration (5 × 1012 CFU ml–1) of the bacteria
Tenacibaculum maritimum, their routine and maximum metabolic rates (MO2rout and MO2max, respectively)
were measured, and relative metabolic scope determined. A significant decrease in metabolic
scope was found for both fed and unfed infected groups. Fed infected fish had a mean ± standard
error of the mean (SEM) decrease of 2.21 ± 0.97 μM O2 g–1 h–1, whilst unfed fish a mean ± SEM
decrease of 3.16 ± 1.29 μM O2 g–1 h–1. The decrease in metabolic scope was a result of significantly
increased MO2rout of both fed and unfed infected salmon. Fed infected fish had a mean ± SEM increase
in MO2rout of 1.86 ± 0.66 μM O2 g–1 h–1, whilst unfed infected fish had a mean ± SEM increase of 2.16
± 0.72 μM O2 g–1 h–1. Interestingly, all groups maintained MO2max regardless of infection status.
Increases in MO2rout corresponded to a significant increase in blood plasma osmolality. A decrease in
metabolic scope has implications for how individuals allocate energy; fish with smaller metabolic
scope will have less energy to allocate to functions such as growth, reproduction and immune
response, which may adversely affect the efficiency of fish growth.

Item Type: Article
Keywords: Tenacibaculum maritimum · Metabolic rate · Atlantic salmon · Feed ration · Oxygen consumption · Bacteria · Exercise
Journal or Publication Title: Diseases of Aquatic Organisms
Publisher: Inter-Research
Page Range: pp. 29-36
ISSN: 0177-5103
Identification Number - DOI: 10.3354/dao01855
Additional Information:

Copyright
© 2007 Inter
Research

Date Deposited: 07 Apr 2008 14:19
Last Modified: 18 Nov 2014 03:34
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP