全球智库信息集成服务系统(G2TT): Spatial variation in growth, maturation schedules and reproductive investment of female sole Solea solea in the Northeast Atlantic.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.seares.2012.12.005
	Spatial variation in growth, maturation schedules and reproductive investment of female sole Solea solea in the Northeast Atlantic.
	Mollet FM; Engelhard GH; Vainikka A; Laugen AT; Rijnsdorp AD; Ernande B
发表日期	2013
出处	Journal of Sea Research 84: 109-121
出版年	2013
语种	英语
摘要	Latitudinal variation in life-history traits is often explained by phenotypically plastic responses or local adaptations to different thermal regimes. We compared growth, maturation schedules and reproductive investment of female sole Solea solea between 8 populations, covering much of the species' distribution in northern Europe, with respect to thermal gradients. An energy allocation model was fitted to size-age data, and probabilistic maturation reaction norms were estimated from size-age-maturity data. We found that northern populations from colder environments had higher rates of energy acquisition and reproductive investment, an intrinsic tendency to mature earlier, and had smaller asymptotic sizes than southern populations from warmer environments. Consequently, growth rate was higher before maturation but lower after maturation in the north compared to the south. This is opposite to Bergmann's rule according to which slower growth, delayed maturation and larger asymptotic sizes are usually observed at lower temperatures. The observed patterns could indicate strong countergradient thermal adaptation for rapid growth and development as well as sustained fecundity in the north, or indicate a response to other selection pressures correlated with the thermal gradient. Potentially higher mortality in northern populations during cold winters might be one of the key drivers of the observed geographical variation in growth and maturation of sole.
主题	Evolution and Ecology (EEP)
关键词	Countergradient variation Phenotypic plasticity Growth Maturation reaction norm Temperature Mortality-induced evolution
URL	http://pure.iiasa.ac.at/id/eprint/10500/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129809
推荐引用方式 GB/T 7714	Mollet FM,Engelhard GH,Vainikka A,et al. Spatial variation in growth, maturation schedules and reproductive investment of female sole Solea solea in the Northeast Atlantic.. 2013.