globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2013.10.004
论文题名:
Not all sponges will thrive in a high-CO2 ocean: Review of the mineralogy of calcifying sponges
作者: Smith A.M.; Berman J.; Key M.M.; Winter D.J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 392
起始页码: 463
结束页码: 472
语种: 英语
英文关键词: Aragonite ; Calcite ; Ocean acidification ; Porifera ; Skeletal biomineralogy ; Sponges
英文摘要: Most marine sponges precipitate silicate skeletal elements, and it has been predicted that they would be among the few "winners" among invertebrates in an acidifying, high-CO2 ocean. But members of Class Calcarea and a small proportion of the Demospongiae have calcified skeletal structures, which puts them among those calcifying organisms which are vulnerable to lowered pH and CO3= availability. A review of carbonate mineralogy in marine sponges (75 specimens, 32 species), along with new data from New Zealand (42 specimens in 15 species) allows us to investigate patterns and make predictions. In general sponges show little variability within individuals and within species (±0.5wt.% MgCO3 in calcite). Extant sponges in Class Calcarea generally produce calcitic spicules with relatively high Mg contents, up to 15wt.% MgCO3. Whereas most of the calcifying demosponges are aragonitic, the genus Acanthochaetetes in the order Hadromerida produces extremely high-Mg calcite (14 to 18wt.% MgCO3). There is generally a weak phylogenetic consistency among classes, orders and families. Statistical analyses, including those accounting for these phylogenetic effects, fail to find a substantial or significant effect of water temperature on mineralogical variation. In the context of global ocean acidification, sponges which produce high-Mg calcite and/or aragonite will be most vulnerable to dissolution, meaning that not all sponges will be "winners" in a high-CO2 ocean. © 2013 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69532
Appears in Collections:过去全球变化的重建

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作者单位: Department of Marine Science, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand; Centre for Marine Environmental and Economic Research, School of Biological Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand; Department of Earth Sciences, Dickinson College, P.O. Box 1773, Carlisle, PA 17013, United States; Allan Wilson Centre for Molecular Ecology and Evolution, Department of Zoology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand; Ulster Wildlife, 3 New Line, Crossgar, Co. Down BT30 9EP, NI, United Kingdom

Recommended Citation:
Smith A.M.,Berman J.,Key M.M.,et al. Not all sponges will thrive in a high-CO2 ocean: Review of the mineralogy of calcifying sponges[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,392
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