气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and crystallography and carbon uptake in the shells of Saccostrea glomerata

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.911619
	Seawater carbonate chemistry and crystallography and carbon uptake in the shells of Saccostrea glomerata
	Fitzer; Susan C; McGill; Rona A R; Torres Gabarda; Sergio; Hughes; Brian; Dove; Michael; O'Connor; Wayne A; Byrne; Maria
发布日期	2020-02-03
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Brackish waters ; Estuary ; Field observation ; Mollusca ; Other studied parameter or process ; Saccostrea glomerata ; Single species ; South Pacific ; Temperate
英文简介	Commercial shellfish aquaculture is vulnerable to the impacts of ocean acidification driven by increasing carbon dioxide (CO2) absorption by the ocean as well as to coastal acidification driven by land run off and rising sea level. These drivers of environmental acidification have deleterious effects on biomineralization. We investigated shell biomineralization of selectively bred and wild‐type families of the Sydney rock oyster Saccostrea glomerata in a study of oysters being farmed in estuaries at aquaculture leases differing in environmental acidification. The contrasting estuarine pH regimes enabled us to determine the mechanisms of shell growth and the vulnerability of this species to contemporary environmental acidification. Determination of the source of carbon, the mechanism of carbon uptake and use of carbon in biomineral formation are key to understanding the vulnerability of shellfish aquaculture to contemporary and future environmental acidification. We, therefore, characterized the crystallography and carbon uptake in the shells of S. glomerata, resident in habitats subjected to coastal acidification, using high‐resolution electron backscatter diffraction and carbon isotope analyses (as δ13C). We show that oyster families selectively bred for fast growth and families selected for disease resistance can alter their mechanisms of calcite crystal biomineralization, promoting resilience to acidification. The responses of S. glomerata to acidification in their estuarine habitat provide key insights into mechanisms of mollusc shell growth under future climate change conditions. Importantly, we show that selective breeding in oysters is likely to be an important global mitigation strategy for sustainable shellfish aquaculture to withstand future climate‐driven change to habitat acidification.
空间范围	Median Latitude: -32.471362 * Median Longitude: 152.217489 * South-bound Latitude: -32.768520 * West-bound Longitude: 151.965973 * North-bound Latitude: -32.174205 * East-bound Longitude: 152.469004
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215677
推荐引用方式 GB/T 7714	Fitzer,Susan C,McGill,et al. Seawater carbonate chemistry and crystallography and carbon uptake in the shells of Saccostrea glomerata.2020-02-03.https://doi.org/10.1594/PANGAEA.911619.