气候变化领域集成服务门户(CCPortal): European sea bass, Dicentrarchus labrax, in a changing ocean

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.835574
	European sea bass, Dicentrarchus labrax, in a changing ocean
	Pope; E C; Ellis; Robert P; Scolamacchia; M; Scolding; J W S; Keay; A; Chingombe; P; Shields; R J; Wilcox; R; Speirs; Douglas C; Wilson; R W; Lewis; Ceri N; Flynn; K J
发布日期	2014-09-05
数据集类型	dataset
英文关键词	Animalia ; Chordata ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Dicentrarchus labrax ; Growth/Morphology ; Laboratory experiment ; Mortality/Survival ; Nekton ; Not applicable ; Pelagos ; Reproduction ; Single species ; Temperate ; Temperature
英文简介	Ocean acidification, caused by rising concentrations of carbon dioxide (CO2), is widely considered to be a major global threat to marine ecosystems. To investigate the potential effects of ocean acidification on the early life stages of a commercially important fish species, European sea bass (Dicentrarchus labrax), 12 000 larvae were incubated from hatch through metamorphosis under a matrix of two temperatures (17 and 19 °C) and two seawater pCO2 levels (ambient and 1,000 µatm) and sampled regularly for 42 days. Calculated daily mortality was significantly affected by both temperature and pCO2, with both increased temperature and elevated pCO2 associated with lower daily mortality and a significant interaction between these two factors. There was no significant pCO2 effect noted on larval morphology during this period but larvae raised at 19 °C possessed significantly larger eyes and lower carbon:nitrogen ratios at the end of the study compared to those raised under 17 °C. Similarly, when the incubation was continued to post-metamorphic (juvenile) animals (day 67-69), fish raised under a combination of 19 °C and 1000 µatm pCO2 were significantly heavier. However, juvenile D. labrax raised under this combination of 19 °C and 1000 µatm pCO2 also exhibited lower aerobic scopes than those incubated at 19 °C and ambient pCO2. Most studies investigating the effects of near-future oceanic conditions on the early life stages of marine fish have used incubations of relatively short durations and suggested that these animals are resilient to ocean acidification. Whilst the increased survival and growth observed in this study supports this view, we conclude that more work is required to investigate whether the differences in juvenile physiology observed in this study manifest as negative impacts in adult fish.
时间范围	2012-11-22T00:00:00 - 2013-02-05T00:00:00
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/217336
推荐引用方式 GB/T 7714	Pope,E C,Ellis,et al. European sea bass, Dicentrarchus labrax, in a changing ocean.2014-09-05.https://doi.org/10.1594/PANGAEA.835574.