Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25136
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Effects of ocean acidification on growth, organic tissue and protein profile of the Mediterranean ­bryo­zoan Myriapora truncata
Authors: Lombardi, Chiara
Cocito, Silvia
Gambi, Maria Cristina
Cisterna, Barbara
Freer, Andy
Cusack, Maggie
Keywords: Ocean acidification
bryozoa
organic tissues
protein
growth
Mediterranean Sea
Myriapora truncata
Issue Date: 2011
Citation: Lombardi C, Cocito S, Gambi MC, Cisterna B, Freer A & Cusack M (2011) Effects of ocean acidification on growth, organic tissue and protein profile of the Mediterranean ­bryo­zoan Myriapora truncata, Aquatic Biology, 13 (3), pp. 251-262.
Abstract: The possible effects of ocean acidification on growth, organic tissue and protein profile in the bryozoan Myriapora truncata (Pallas, 1766) were studied in samples transplanted along a gradient of different pH conditions in an area of natural volcanic CO2 vents at Ischia Island (Tyrrhenian Sea, Italy). Living colonies from normal (mean pH 8.10), intermediate (pH 7.83) and low (pH 7.32) pH sites were investigated after intervals of 34, 57 and 87 d of exposure. M. truncata formed new and complete zooids at the normal site, whereas at the intermediate and low pH sites, neither partial nor complete zooids were produced. After 34 d at intermediate and low pH conditions, the organic cuticle which envelops the skeleton increased in thickness when compared to normal colonies, suggesting a protective role against dissolution of the high-Mg calcite skeleton. Significant changes in the protein profile and expression displayed by samples from intermediate and low pH conditions suggest that M. truncata makes an initial attempt to overcome the decrease in pH by up-regulating protein production but eventually, especially in the lowest pH condition, exhausts biochemical energy to maintain this rate of protein production, leading to eventual death.
DOI Link: http://dx.doi.org/10.3354/ab00376
Rights: Publisher allows this work to be made available in this repository. Published in Aquatic Biology 13:251-262 (2011) DOI: https://doi.org/10.3354/ab00376 by Inter-Research with the following policy: the Publisher’s PDF may be posted or deposited once the article becomes Free Access, 5 years after publication

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