气候变化领域集成服务门户(CCPortal): Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.847764
	Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures
	Suckling; Coleen C; Clark; Melody S; Richard; Joëlle; Morley; Simon A; Thorne; Michael A; Harper; Elizabeth M; Peck; Loyd S
发布日期	2015-07-06
数据集类型	dataset
英文关键词	Animalia ; Antarctic ; Benthic animals ; Benthos ; Calcification/Dissolution ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Development ; Echinodermata ; Growth/Morphology ; Laboratory experiment ; Polar ; Reproduction ; Respiration ; Single species ; Sterechinus neumayeri ; Temperature
英文简介	This study examined the effects of long-term culture under altered conditions on the Antarctic sea urchin, Sterechinus neumayeri. Sterechinus neumayeri was cultured under the combined environmental stressors of lowered pH (-0.3 and -0.5 pH units) and increased temperature (+2 °C) for 2 years. This time-scale covered two full reproductive cycles in this species and analyses included studies on both adult metabolism and larval development. Adults took at least 6-8 months to acclimate to the altered conditions, but beyond this, there was no detectable effect of temperature or pH. Animals were spawned after 6 and 17 months exposure to altered conditions, with markedly different outcomes. At 6 months, the percentage hatching and larval survival rates were greatest in the animals kept at 0 °C under current pH conditions, whilst those under lowered pH and +2 °C performed significantly less well. After 17 months, performance was not significantly different across treatments, including controls. However, under the altered conditions urchins produced larger eggs compared with control animals. These data show that under long-term culture adult S. neumayeri appear to acclimate their metabolic and reproductive physiology to the combined stressors of altered pH and increased temperature, with relatively little measureable effect. They also emphasize the importance of long-term studies in evaluating effects of altered pH, particularly in slow developing marine species with long gonad maturation times, as the effects of altered conditions cannot be accurately evaluated unless gonads have fully matured under the new conditions.
空间范围	Latitude: -67.566670 * Longitude: -68.133330
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/217079
推荐引用方式 GB/T 7714	Suckling,Coleen C,Clark,et al. Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures.2015-07-06.https://doi.org/10.1594/PANGAEA.847764.