Ocean acidification and otolith development in larvae of a tropical marine fish

This research tested the susceptibility of otolith development in clownfish to increasing acidity and temperature.

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    Data record related to this publication Ocean acidification and otolith development in larvae of a tropical marine fish
    Data Publication title Ocean acidification and otolith development in larvae of a tropical marine fish
  • Description

    This research tested the susceptibility of otolith development in clownfish to increasing acidity and temperature.

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      We reared larvae of the clownfish Amphiprion percula from hatching to settlement at three pHNBS and pCO2 levels (control: pH 8.15 and 404 μatm CO2; intermediate: pH 7.8 and 1050 μatm CO2; extreme: pH 7.6 and 1721 μatm CO2) to test the possible effects of ocean acidification on otolith development. There was no effect of the intermediate treatment (pH 7.8 and 1050 μatm CO2) on otolith size, shape, symmetry between left and right otoliths, or otolith elemental chemistry, compared with controls. However, in the more extreme treatment (pH 7.6 and 1721 μatm CO2) otolith area and maximum length were larger than controls, although no other traits were significantly affected. Our results support the hypothesis that pH regulation in the otolith endolymph can lead to increased precipitation of CaCO3 in otoliths of larval fish exposed to elevated CO2, as proposed by an earlier study, however, our results also show that sensitivity varies considerably among species.

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  • Keywords
    • Ocean acidification
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  • Research themes
    Tropical Ecosystems, Conservation and Climate Change
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  • Start Date 2010/01/01
  • End Date 2011/01/01
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    Type Location Notes
    Physical Location School of Marine & Tropical Biology, James Cook University, Townsville QLD 4811, Australia , Phone: (07) 4781 4345 (International: +61 7 4781 4345), Fax: (07) 4781 5511 (International: +61 7 4781 5511)
    Attachment Munday et al 2011 Biogeosciences EPOCA data.csv
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    Access conditions Open: free access under license
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      Name Munday, P.L., Hernaman, V., Dixson, D.L., and Thorrold, S.R. (2011) Effect of ocean acidification on otolith development in larvae of a tropical marine fish. Biogeosciences, 8 (6). pp. 1631-1641. ISSN 1726-4189
    • URL http://dx.doi.org/10.5194/bg-8-1631-2011
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    Citation Munday, Philip; Dixson, Danielle (2012): Ocean acidification and otolith development in larvae of a tropical marine fish. James Cook University. https://research.jcu.edu.au/data/published/884617e9313cc49f3aadd3df20f6da50