reference : Ocean acidification impairs olfactory discrimination and homing ability of a marine fish

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Bibliographic fields
reftype Journal Article
Abstract The persistence of most coastal marine species depends on larvae finding suitable adult habitat at the end of an offshore dispersive stage that can last weeks or months. We tested the effects that ocean acidification from elevated levels of atmospheric carbon dioxide (CO(2)) could have on the ability of larvae to detect olfactory cues from adult habitats. Larval clownfish reared in control seawater (pH 8.15) discriminated between a range of cues that could help them locate reef habitat and suitable settlement sites. This discriminatory ability was disrupted when larvae were reared in conditions simulating CO(2)-induced ocean acidification. Larvae became strongly attracted to olfactory stimuli they normally avoided when reared at levels of ocean pH that could occur ca. 2100 (pH 7.8) and they no longer responded to any olfactory cues when reared at pH levels (pH 7.6) that might be attained later next century on a business-as-usual carbon-dioxide emissions trajectory. If acidification continues unabated, the impairment of sensory ability will reduce population sustainability of many marine species, with potentially profound consequences for marine diversity.
Accession Number 19188596
Author Munday, P. L.; Dixson, D. L.; Donelson, J. M.; Jones, G. P.; Pratchett, M. S.; Devitsina, G. V.; Doving, K. B.
Author Address Australian Research Council Centre of Excellence for Coral Reef Studies, School of Marine and Tropical Biology, James Cook University, Townsville, QLD 4811, Australia.
DOI 10.1073/pnas.0809996106
Date Feb 10
ISSN 1091-6490 (Electronic) 0027-8424 (Linking)
Issue 6
Journal Proceedings of the National Academy of Sciences USA
Keywords Air Pollutants/adverse effects; *Animal Migration; Animals; Behavior, Animal; *Carbon Dioxide/adverse effects; Extinction, Biological; Fishes; Hydrogen-Ion Concentration; Larva/physiology; Oceans and Seas; *Olfactory Perception; Population Density; Water Pollutants/adverse effects
Notes Munday, Philip L Dixson, Danielle L Donelson, Jennifer M Jones, Geoffrey P Pratchett, Morgan S Devitsina, Galina V Doving, Kjell B eng Research Support, Non-U.S. Gov't 2009/02/04 09:00 Proc Natl Acad Sci U S A. 2009 Feb 10;106(6):1848-52. doi: 10.1073/pnas.0809996106. Epub 2009 Feb 2.
PMCID PMC2644126
Pages 1848-52
Title Ocean acidification impairs olfactory discrimination and homing ability of a marine fish
Volume 106
Year 2009
Bibliographic identifiers
_record_number 3333
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