Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish


Autoria(s): Murray, Christopher S; Malvezzi, Alex; Gobler, Christopher J; Baumann, Hannes
Data(s)

18/11/2014

Resumo

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.

Formato

text/tab-separated-values, 952 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.838990

doi:10.1594/PANGAEA.838990

Idioma(s)

en

Publicador

PANGAEA

Relação

Lavigne, Héloise; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Murray, Christopher S; Malvezzi, Alex; Gobler, Christopher J; Baumann, Hannes (2014): Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish. Marine Ecology Progress Series, 504, 1-11, doi:10.3354/meps10791

Palavras-Chave #adaptation; Alkalinity, total; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; chemistry; Coulometric titration; Date; Experiment; field; fish; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); growth; Growth rate; Growth rate, standard error; laboratory; Length, standard; Length, standard error; morphology; mortality; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; other process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric; Replicates; reproduction; Salinity; Species; Survival; Survival rate, standard error; Temperature, water; Treatment
Tipo

Dataset