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ID 60844
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Katayama, Yukitoshi Ushimado Marine Institute, Faculty of Science, Okayama University Kaken ID researchmap
Saito, Kazuhiro Ushimado Marine Institute, Faculty of Science, Okayama University
Sakamoto, Tatsuya Ushimado Marine Institute, Faculty of Science, Okayama University ORCID Kaken ID publons researchmap
Abstract
Some fish have acquired the ability to breathe air, but these fish can no longer flush their gills effectively when out of water. Hence, they have developed characteristic means for defense against external stressors, including thirst (osmolarity/ions) and toxicity. Amphibious fish, extant air-breathing fish emerged from water, may serve as models to examine physiological responses to these stressors. Some of these fish, including mudskipper gobies such asPeriophthalmodon schlosseri,Boleophthalmus boddartiand ourPeriophthalmus modestus, display distinct adaptational behaviors to these factors compared with fully aquatic fish. In this review, we introduce the mudskipper goby as a unique model to study the behaviors and the neuro/endocrine mechanisms of behavioral responses to the stressors. Our studies have shown that a local sensation of thirst in the buccal cavity-this being induced by dipsogenic hormones-motivates these fish to move to water through a forebrain response. The corticosteroid system, which is responsive to various stressors, also stimulates migration, possibly via the receptors in the brain. We suggest that such fish are an important model to deepen insights into the stress-related neuro/endocrine-behavioral effects.
Keywords
stressors
thirst
angiotensin II
corticosteroids
amphibious fish
Published Date
2020-09-14
Publication Title
International Journal of Molecular Sciences
Volume
volume21
Issue
issue18
Publisher
MDPI
Start Page
6748
ISSN
1422-0067
NCID
AA12038549
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
© 2020 by the authors.
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DOI
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Related Url
isVersionOf https://doi.org/10.3390/ijms21186748
License
http://creativecommons.org/licenses/by/4.0/