气候变化领域集成服务门户(CCPortal): Multiple stressor effects of near-future elevated seawater temperature and decreased pH on righting and escape behaviors of two common Antarctic gastropods

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.836140
	Multiple stressor effects of near-future elevated seawater temperature and decreased pH on righting and escape behaviors of two common Antarctic gastropods
	Schram; Julie B; Schoenrock; Kathryn M; McClintock; James B; Amsler; Charles D; Angus; Robert A
发布日期	2014-09-23
数据集类型	dataset
英文关键词	Animalia ; Antarctic ; Behaviour ; Benthic animals ; Benthos ; Bottles or small containers/Aquaria ( 20 L) ; Coast and continental shelf ; Laboratory experiment ; Margarella antarctica ; Mollusca ; Nacella concinna ; Polar ; Single species ; Temperature
英文简介	Warming seawater temperatures and ocean acidification on the coastal western Antarctic Peninsula pose unique challenges to stenothermal marine invertebrates. The present study examines prospective sub-lethal effects of elevated temperature, pCO2, and resultant decrease in seawater pH, on righting behavior and maximal escape speeds for two common gastropods, the limpet Nacella concinna (Strebel) and mesogastropod snail Margarella antarctica (Lamy). Replicate individuals held in individual containers were exposed to four combinations of seawater temperature (1.5 °C-current average, 3.5 °C-projected average by 2100) and pH (pH 8.0-current average, pH 7.8-projected average by 2100 as a result of elevated pCO2 levels) for a period of 6 weeks. Following this chronic exposure, righting behavior, determined for the limpets as proportion to right over 24 h and for snails as time to right, as well as maximum escape speed following contact with a sea star predator were measured. We found no significant differences in proportions of limpets displaying the capacity to right among the four temperature-pH treatments. However, there was a significant temperature-pH interaction effect for mean righting times in snails, indicating that the effect of pH on the time to right is dependent on temperature. We found no significant effects of temperature or pH on mean maximal escape speed in limpets. Additionally, we observed a significant temperature-pH interaction effect for mean maximal escape speed in snails. These interactive effects make it difficult to make clear predictions about how these environmental factors may impact behavioral responses.
空间范围	Latitude: -64.766670 * Longitude: -64.050000
时间范围	2012-12-04T00:00:00 - 2012-12-05T00:00:00
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/217320
推荐引用方式 GB/T 7714	Schram,Julie B,Schoenrock,et al. Multiple stressor effects of near-future elevated seawater temperature and decreased pH on righting and escape behaviors of two common Antarctic gastropods.2014-09-23.https://doi.org/10.1594/PANGAEA.836140.