Growth of brown trout in the wild predicted by embryo stress reaction in the laboratory.

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State: Public
Version: Final published version
License: CC BY-NC 4.0
Serval ID
serval:BIB_DCFB8C709F6C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Growth of brown trout in the wild predicted by embryo stress reaction in the laboratory.
Journal
Ecology
Author(s)
Bylemans J., Marques da Cunha L., Wilkins LGE, Nusbaumer D., Uppal A., Wedekind C.
ISSN
1939-9170 (Electronic)
ISSN-L
0012-9658
Publication state
Published
Issued date
06/2024
Peer-reviewed
Oui
Volume
105
Number
6
Pages
e4303
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Laboratory studies on embryos of salmonids, such as the brown trout (Salmo trutta), have been extensively used to study environmental stress and how responses vary within and between natural populations. These studies are based on the implicit assumption that early life-history traits are relevant for stress tolerance in the wild. Here we test this assumption by combining two data sets from studies on the same 60 families. These families had been experimentally produced from wild breeders to determine, in separate samples, (1) stress tolerances of singly kept embryos in the laboratory and (2) growth of juveniles during 6 months in the wild. We found that growth in the wild was well predicted by the larval size of their full sibs in the laboratory, especially if these siblings had been experimentally exposed to a pathogen. Exposure to the pathogen had not caused elevated mortality among the embryos but induced early hatching. The strength of this stress-induced change of life history was a significant predictor of juvenile growth in the wild: the stronger the response in the laboratory, the slower the growth in the wild. We conclude that embryo performance in controlled environments can be a useful predictor of juvenile performance in the wild.
Keywords
Animals, Trout/physiology, Stress, Physiological, Embryo, Nonmammalian/physiology, Fish Diseases, Yersinia ruckeri/physiology, 0+ juvenile, embryo, growth, hatching, larvae, life history, maternal environmental effects, salmonids, stress‐induced, trout
Pubmed
Web of science
Open Access
Yes
Funding(s)
Swiss National Science Foundation / 31003A_159579
Swiss National Science Foundation / 31003A_182265
Create date
17/05/2024 5:23
Last modification date
15/06/2024 7:03
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