气候变化领域集成服务门户(CCPortal): Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.838990
	Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish
	Murray; Christopher S; Malvezzi; Alex; Gobler; Christopher J; Baumann; Hannes
发布日期	2014-11-18
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) ; Growth/Morphology ; Laboratory experiment ; Menidia menidia ; Mortality/Survival ; Nekton ; North Atlantic ; Pelagos ; Reproduction ; Single species ; Temperate
英文简介	Experimental assessments of species vulnerabilities to ocean acidification are rapidly increasing in number, yet the potential for short- and long-term adaptation to high CO2 by contemporary marine organisms remains poorly understood. We used a novel experimental approach that combined bi-weekly sampling of a wild, spawning fish population (Atlantic silverside Menidia menidia) with standardized offspring CO2 exposure experiments and parallel pH monitoring of a coastal ecosystem. We assessed whether offspring produced at different times of the spawning season (April to July) would be similarly susceptible to elevated (1100 µatm, pHNIST = 7.77) and high CO2 levels (2300 µatm, pHNIST = 7.47). Early in the season (April), high CO2 levels significantly (p < 0.05) reduced fish survival by 54% (2012) and 33% (2013) and reduced 1 to 10 d post-hatch growth by 17% relative to ambient conditions. However, offspring from parents collected later in the season became increasingly CO2-tolerant until, by mid-May, offspring survival was equally high at all CO2 levels. This interannually consistent plasticity coincided with the rapid annual pH decline in the species' spawning habitat (mean pH: 1 April/31 May = 8.05/7.67). It suggests that parents can condition their offspring to seasonally acidifying environments, either via changes in maternal provisioning and/or epigenetic transgenerational plasticity (TGP). TGP to increasing CO2 has been shown in the laboratory but never before in a wild population. Our novel findings of direct CO2-related survival reductions in wild fish offspring and seasonally plastic responses imply that realistic assessments of species CO2-sensitivities must control for parental environments that are seasonally variable in coastal habitats.
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/217274
推荐引用方式 GB/T 7714	Murray,Christopher S,Malvezzi,et al. Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish.2014-11-18.https://doi.org/10.1594/PANGAEA.838990.