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Phenotypic effects of antibiotic-induced axenity and egg disinfection in early larval European seabass (Dicentrarchus labrax L.)

Spyridon Nikolakakis UGent, Kristof Dierckens, Peter Bossier UGent and Dominique Adriaens UGent (2018) Aquaculture Research.
abstract
In the present study, the hypothesis that the difference in axenic conditions in the incubation and rearing environment of European seabass larvae induces size and shape effects on the specimens is tested. This difference is studied between xenic and axenic seabass larvae of DAH (day after hatching) 0, 5, 11 and 15. The axenic rearing protocol involves an egg disinfection with glutaraldehyde after the primary one with iodine in the hatchery, and the hypothesis that this secondary disinfection induces size and shape effects is also tested. In order to accomplish this, three egg and larvae treatments are included: “ DA ” (disinfected axenic), “ DX ” (disinfected xenic) and “ NX ” (nondisinfected xenic). Regarding the effect of antibiotic-induced axenity, DA larvae exhibited larger bodies than both DX and NX on DAH 5 and 11. They also had a smaller yolk sac than DX at hatching, but consumed it slower. Towards the end of the experiment, DA larvae were thicker, but slightly more curved than DX and NX, which may be an abnormal shape, or a slightly more advanced ontogenetic stage. As far as egg disinfection, it had significant but very moderate shape effects on DAH 5 and 11, and disinfected larvae consumed their yolk sac faster. To the best of our knowledge, this study is one of the first to illus- trate the subtle but significant size and shape effects caused by antibiotic-induced axenity and secondary egg disinfection in the early larval stages, which suggest the existence of bacterial mechanisms that play a phenotypic role.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
deformities, geometric morphometrics, larvae, outline, shape
journal title
Aquaculture Research
publisher
Wiley
ISSN
1355-557X
DOI
10.1111/are.13716
UGent publication?
yes
classification
U
copyright statement
I have transferred the copyright for this publication to the publisher
id
8562160
handle
http://hdl.handle.net/1854/LU-8562160
alternative location
https://onlinelibrary.wiley.com/doi/10.1111/are.13716
date created
2018-05-17 20:10:55
date last changed
2018-05-17 20:14:16
@article{8562160,
  abstract     = {In the present study, the hypothesis that the difference in axenic conditions in the
incubation and rearing environment of European seabass larvae induces size and
shape effects on the specimens is tested. This difference is studied between xenic
and axenic seabass larvae of DAH (day after hatching) 0, 5, 11 and 15. The axenic
rearing protocol involves an egg disinfection with glutaraldehyde after the primary
one with iodine in the hatchery, and the hypothesis that this secondary disinfection
induces size and shape effects is also tested. In order to accomplish this, three egg
and larvae treatments are included: {\textquotedblleft} DA {\textquotedblright} (disinfected axenic), {\textquotedblleft} DX {\textquotedblright} (disinfected
xenic) and {\textquotedblleft} NX {\textquotedblright} (nondisinfected xenic). Regarding the effect of antibiotic-induced
axenity, DA larvae exhibited larger bodies than both DX and NX on DAH 5 and 11.
They also had a smaller yolk sac than DX at hatching, but consumed it slower.
Towards the end of the experiment, DA larvae were thicker, but slightly more
curved than DX and NX, which may be an abnormal shape, or a slightly more
advanced ontogenetic stage. As far as egg disinfection, it had significant but very
moderate shape effects on DAH 5 and 11, and disinfected larvae consumed their
yolk sac faster. To the best of our knowledge, this study is one of the first to illus-
trate the subtle but significant size and shape effects caused by antibiotic-induced
axenity and secondary egg disinfection in the early larval stages, which suggest the
existence of bacterial mechanisms that play a phenotypic role.},
  author       = {Nikolakakis, Spyridon and Dierckens, Kristof and Bossier, Peter and Adriaens, Dominique},
  issn         = {1355-557X},
  journal      = {Aquaculture Research},
  keyword      = {deformities,geometric morphometrics,larvae,outline,shape},
  publisher    = {Wiley},
  title        = {Phenotypic effects of antibiotic-induced axenity and egg disinfection in early larval European seabass (Dicentrarchus labrax L.)},
  url          = {http://dx.doi.org/10.1111/are.13716},
  year         = {2018},
}

Chicago
Nikolakakis, Spyridon, Kristof Dierckens, Peter Bossier, and Dominique Adriaens. 2018. “Phenotypic Effects of Antibiotic-induced Axenity and Egg Disinfection in Early Larval European Seabass (Dicentrarchus Labrax L.).” Aquaculture Research.
APA
Nikolakakis, S., Dierckens, K., Bossier, P., & Adriaens, D. (2018). Phenotypic effects of antibiotic-induced axenity and egg disinfection in early larval European seabass (Dicentrarchus labrax L.). Aquaculture Research.
Vancouver
1.
Nikolakakis S, Dierckens K, Bossier P, Adriaens D. Phenotypic effects of antibiotic-induced axenity and egg disinfection in early larval European seabass (Dicentrarchus labrax L.). Aquaculture Research. Wiley; 2018;
MLA
Nikolakakis, Spyridon, Kristof Dierckens, Peter Bossier, et al. “Phenotypic Effects of Antibiotic-induced Axenity and Egg Disinfection in Early Larval European Seabass (Dicentrarchus Labrax L.).” Aquaculture Research (2018): n. pag. Print.