Advanced

Chronic CO2 exposure markedly increases the incidence of cataracts in juvenile Atlantic cod Gadus morhua L.

Moran, Damian LU ; Tubbs, Lincoln and Stottrup, Josianne G. (2012) In Aquaculture 364. p.212-216
Abstract
A study was undertaken to test the affect of chronic exposure to elevated dissolved carbon dioxide on juvenile Atlantic cod. The CO2 treatment concentrations were designated as low (1-2 mg L-1, 1000 mu atm), medium (8 mg L-1, 3500 mu atm) and high (18 mg L-1, 8500 mu atm), and the fish were reared at 10 C and 20% salinity. A marked observation at the end of the 55 day trial was that an increase in the incidence of eye lesions correlated with increasing CO2 concentration. Typical lesions included unilateral and bilateral exopthalmos, gas bubbles under the sclera and cataracts, and these were quantified in all fish (n = 757 individuals) using field methods. The most notable difference between CO2 treatments was the prevalence and intensity... (More)
A study was undertaken to test the affect of chronic exposure to elevated dissolved carbon dioxide on juvenile Atlantic cod. The CO2 treatment concentrations were designated as low (1-2 mg L-1, 1000 mu atm), medium (8 mg L-1, 3500 mu atm) and high (18 mg L-1, 8500 mu atm), and the fish were reared at 10 C and 20% salinity. A marked observation at the end of the 55 day trial was that an increase in the incidence of eye lesions correlated with increasing CO2 concentration. Typical lesions included unilateral and bilateral exopthalmos, gas bubbles under the sclera and cataracts, and these were quantified in all fish (n = 757 individuals) using field methods. The most notable difference between CO2 treatments was the prevalence and intensity of lenticular cataracts, which were primarily diffuse rather than nucleated. Nearly 75% of all fish from the high CO2 treatment were found to have some degree of cataractous lesion, compared with 10-13% for the other treatments. The severity of the cataract was most pronounced at the highest CO2 concentration, with many fish presenting complete bilateral cataracts. These data indicate that chronic exposure to high CO2 concentrations can cause cataracts in juvenile Atlantic cod. To our knowledge this is the first report of CO2 as a causative agent or aggravating factor for cataracts. (C) 2012 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hypercapnia, Carbon dioxide, Cataracts, Exophthalmia, Recirculating, aquaculture system
in
Aquaculture
volume
364
pages
212 - 216
publisher
Elsevier
external identifiers
  • wos:000310571300031
  • scopus:84865822687
ISSN
0044-8486
DOI
10.1016/j.aquaculture.2012.08.044
language
English
LU publication?
yes
id
21b9bfb7-bca2-4c13-a50c-69eda174d73b (old id 3276243)
date added to LUP
2012-12-20 13:59:20
date last changed
2017-07-02 03:22:06
@article{21b9bfb7-bca2-4c13-a50c-69eda174d73b,
  abstract     = {A study was undertaken to test the affect of chronic exposure to elevated dissolved carbon dioxide on juvenile Atlantic cod. The CO2 treatment concentrations were designated as low (1-2 mg L-1, 1000 mu atm), medium (8 mg L-1, 3500 mu atm) and high (18 mg L-1, 8500 mu atm), and the fish were reared at 10 C and 20% salinity. A marked observation at the end of the 55 day trial was that an increase in the incidence of eye lesions correlated with increasing CO2 concentration. Typical lesions included unilateral and bilateral exopthalmos, gas bubbles under the sclera and cataracts, and these were quantified in all fish (n = 757 individuals) using field methods. The most notable difference between CO2 treatments was the prevalence and intensity of lenticular cataracts, which were primarily diffuse rather than nucleated. Nearly 75% of all fish from the high CO2 treatment were found to have some degree of cataractous lesion, compared with 10-13% for the other treatments. The severity of the cataract was most pronounced at the highest CO2 concentration, with many fish presenting complete bilateral cataracts. These data indicate that chronic exposure to high CO2 concentrations can cause cataracts in juvenile Atlantic cod. To our knowledge this is the first report of CO2 as a causative agent or aggravating factor for cataracts. (C) 2012 Elsevier B.V. All rights reserved.},
  author       = {Moran, Damian and Tubbs, Lincoln and Stottrup, Josianne G.},
  issn         = {0044-8486},
  keyword      = {Hypercapnia,Carbon dioxide,Cataracts,Exophthalmia,Recirculating,aquaculture system},
  language     = {eng},
  pages        = {212--216},
  publisher    = {Elsevier},
  series       = {Aquaculture},
  title        = {Chronic CO2 exposure markedly increases the incidence of cataracts in juvenile Atlantic cod Gadus morhua L.},
  url          = {http://dx.doi.org/10.1016/j.aquaculture.2012.08.044},
  volume       = {364},
  year         = {2012},
}