Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua.

Maneja, Rommel H., Frommel, Andrea, Geffen, A. J., Folkvord, A., Piatkowski, Uwe , Chang, M. Y. and Clemmesen, Catriona (2013) Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua. Open Access Marine Ecology Progress Series, 477 . pp. 251-258. DOI 10.3354/meps10146.

[thumbnail of m477p251.pdf]
m477p251.pdf - Published Version

Download (650kB) | Preview

Supplementary data:


The growth and development of the aragonitic CaCO3 otoliths of teleost fish could be vulnerable to processes resulting from ocean acidification. The potential effects of an increase in atmospheric CO2 on the calcification of the otoliths were investigated by rearing Atlantic cod Gadus morhua L. larvae in 3 pCO2 concentrations—control (370 µatm), medium (1800 µatm) and high (4200 µatm)—from March to May 2010. Increased otolith growth was observed in 7 to 46 d post hatch (dph) cod larvae at elevated pCO2 concentrations. The sagittae and lapilli were usually largest in the high pCO2 treatment followed by the medium and control treatments. The greatest difference in mean otolith surface area (normalized to fish length) was for sagittae at 11 dph, with medium and high treatments being 46 and 43% larger than the control group, respectively. There was no significant pCO2 effect on the shape of the otoliths nor were there any trends in the fluctuating asymmetry, defined as the difference between the right and left sides, in relation to the increase in otolith growth from elevated pCO2.

Document Type: Article
Funder compliance: info:eu-repo/grantAgreement/EC/FP7/215157
Keywords: Otolith growth/calcification · Ocean acidification · Atlantic cod larvae · Gadus morhua L.
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
Publisher: Inter Research
Projects: CalMarO, EPOCA, BIOACID, Future Ocean
Date Deposited: 08 Apr 2013 07:50
Last Modified: 25 Jun 2018 09:55
URI: https://oceanrep.geomar.de/id/eprint/20909

Actions (login required)

View Item View Item