气候变化领域集成服务门户(CCPortal): Individual whole-animal parameters of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) acclimated to ocean acidification and warming conditions, and time series of seawater carbonate chemistry calculated throughout incubation period

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.867391
	Individual whole-animal parameters of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) acclimated to ocean acidification and warming conditions, and time series of seawater carbonate chemistry calculated throughout incubation period
	Kunz; Kristina Lore; Frickenhaus; Stephan; Hardenberg; Silvia; Torild; Johansen; Leo; Elettra; Pörtner; Hans-Otto; Schmidt; Matthias; Windisch; Heidrun Sigrid; Knust; Rainer; Mark; Felix Christopher
发布日期	2016-10-31
数据集类型	dataset
英文关键词	Animalia ; Behaviour ; Boreogadus saida ; Chordata ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Gadus morhua ; Growth/Morphology ; Laboratory experiment ; Mortality/Survival ; Nekton ; Pelagos ; Polar ; Respiration ; Single species ; Temperature
英文简介	Oceans are experiencing increasing acidification in parallel to a distinct warming trend in consequence of ongoing climate change. Rising seawater temperatures are mediating a northward shift in distribution of Atlantic cod (Gadus morhua), into the habitat of polar cod (Boreogadus saida), that is associated with retreating cold water masses. This study investigates the competitive strength of the co-occurring gadoids under ocean acidification and warming (OAW) scenarios. Therefore, we incubated specimens of both species in individual tanks for 4 months, under different control and projected temperatures (polar cod: 0, 3, 6, 8 °C, Atlantic cod: 3, 8, 12, 16 °C) and PCO2 conditions (390 and 1170 µatm) and monitored growth, feed consumption and standard metabolic rate. Our results revealed distinct temperature effects on both species. While hypercapnia by itself had no effect, combined drivers caused nonsignificant trends. The feed conversion efficiency of normocapnic polar cod was highest at 0 °C, while optimum growth performance was attained at 6 °C; the long-term upper thermal tolerance limit was reached at 8 °C. OAW caused only slight impairments in growth performance. Under normocapnic conditions, Atlantic cod consumed progressively increasing amounts of feed than individuals under hypercapnia despite maintaining similar growth rates during warming. The low feed conversion efficiency at 3 °C may relate to the lower thermal limit of Atlantic cod. In conclusion, Atlantic cod displayed increased performance in the warming Arctic such that the competitive strength of polar cod is expected to decrease under future OAW conditions.
空间范围	Median Latitude: 79.964491 * Median Longitude: 17.837333 * South-bound Latitude: 79.616670 * West-bound Longitude: 12.850000 * North-bound Latitude: 80.280670 * East-bound Longitude: 22.214830
时间范围	2013-01-15T00:00:00 - 2014-10-06T00:00:00
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/215381
推荐引用方式 GB/T 7714	Kunz,Kristina Lore,Frickenhaus,et al. Individual whole-animal parameters of Polar cod (Boreogadus saida) and Atlantic cod (Gadus morhua) acclimated to ocean acidification and warming conditions, and time series of seawater carbonate chemistry calculated throughout incubation period.2016-10-31.https://doi.org/10.1594/PANGAEA.867391.