气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and sea urchin reproductive performance

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.913488
	Seawater carbonate chemistry and sea urchin reproductive performance
	Smith; Kathryn E; Byrne; Maria; Deaker; Dione; Hird; Cameron M; Nielson; Clara; Wilson-McNeal; Alice; Lewis; Ceri N
发布日期	2020-03-16
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Bottles or small containers/Aquaria ( 20 L) ; Coast and continental shelf ; Echinodermata ; Heliocidaris erythrogramma ; Laboratory experiment ; Lytechinus pictus ; North Pacific ; Reproduction ; Single species ; South Pacific ; Temperate
英文简介	Ocean acidification (OA) is predicted to be a major driver of ocean biodiversity change. At projected rates of change, sensitive marine taxa may not have time to adapt. Their persistence may depend on pre-existing inter-individual variability. We investigated individual male reproductive performance under present-day and OA conditions using two representative broadcast spawners, the sea urchins Lytechinus pictus and Heliocidaris erythrogramma. Under the non-competitive individual ejaculate scenario, we examined sperm functional parameters (e.g. swimming speed, motility) and their relationship with fertilization success under current and near-future OA conditions. Significant inter-individual differences in almost every parameter measured were identified. Importantly, we observed strong inverse relationships between individual fertilization success rate under current conditions and change in fertilization success under OA. Individuals with a high fertilization success under current conditions had reduced fertilization under OA, while individuals with a low fertilization success under current conditions improved. Change in fertilization success ranged from −67% to +114% across individuals. Our results demonstrate that while average population fertilization rates remain similar under OA and present-day conditions, the contribution by different males to the population significantly shifts, with implications for how selection will operate in a future ocean.
空间范围	Latitude: -33.856389 * Longitude: 151.269722
时间范围	2017-11-01T00:00:00 - 2017-11-30T00:00:00
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/215632
推荐引用方式 GB/T 7714	Smith,Kathryn E,Byrne,et al. Seawater carbonate chemistry and sea urchin reproductive performance.2020-03-16.https://doi.org/10.1594/PANGAEA.913488.