The effects of chronic developmental hypoxia on swimming performance in zebrafish

Relative to normoxia‐reared fish, hypoxia‐reared zebrafish Danio rerio achieved 24·9 and 21·4% slower maximal swim velocities in both normoxic and hypoxic waters, respectively. Hypoxia‐reared fish also produced 26·1 and 63·9% less lactate during resting conditions across both normoxic and hypoxic wa...

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Bibliographic Details
Published in:Journal of fish biology 2006-12, Vol.69 (6), p.1885-1891
Main Authors: Widmer, S., Moore, F. B.-G., Bagatto, B.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Biological and medical sciences
Danio rerio
development
exercise
Freshwater
Fundamental and applied biological sciences. Psychology
hypoxia
plasticity
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
zebrafish
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Summary:Relative to normoxia‐reared fish, hypoxia‐reared zebrafish Danio rerio achieved 24·9 and 21·4% slower maximal swim velocities in both normoxic and hypoxic waters, respectively. Hypoxia‐reared fish also produced 26·1 and 63·9% less lactate during resting conditions across both normoxic and hypoxic waters, respectively. During exercise, this trend continued as hypoxia‐reared fish produced 68·2 and 55·1% less lactate across both normoxic and hypoxic waters, respectively. This reduction in performance, rather than representing a purely pathological (maladaptive) response to hypoxia, appears to represent a fundamental shift in the metabolic response to hypoxia.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.2006.01242.x