Ocean acidification affects the phyto-zoo plankton trophic transfer efficiency ...

• Main Authors: Cripps, Gemma, Flynn, Kevin J, Lindeque, Penelope K
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Acartia tonsa; Animalia; Arthropoda; Behaviour; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Chaetoceros muelleri; Chlorophyta; Chromista; Growth/Morphology; Haptophyta; Isochrysis galbana; Laboratory experiment; Laboratory strains; Not applicable; Ochrophyta; Pelagos; Phytoplankton; Plantae; Primary production/Photosynthesis; Reproduction; FOS Medical biotechnology; Respiration; Species interaction; Tetraselmis suecica; Zooplankton; Type; Group; Gender; Species; Registration number of species; Uniform resource locator/link to reference; Treatment; Lipids; Lipids, standard error; Carbohydrates; Carbohydrates, standard error; Proteins; Proteins, standard error; Lipid/carbohydrate ratio; Lipid/carbohydrate ratio, standard error; Lipid/protein ratio; Lipid/protein ratio, standard error; Proteins/Carbohydrate ratio; Proteins/Carbohydrate ratio, standard error; Carbon per cell; Carbon, standard error; Carbon content per individual; Nitrogen per cell; Nitrogen, standard error; Ocean acidification; Copepods
• Online Access: https://dx.doi.org/10.1594/pangaea.858970; https://doi.pangaea.de/10.1594/PANGAEA.858970

The critical role played by copepods in ocean ecology and biogeochemistry warrants an understanding of how these animals may respond to ocean acidification (OA). Whilst an appreciation of the potential direct effects of OA, due to elevated pCO2, on copepods is improving, little is known about the indirect impacts acting via bottom-up(food quality) effects. We assessed, for the first time, the chronic effects of direct and/or indirect exposures to elevated pCO2 on the behaviour, vital rates, chemical and biochemical stoichiometry of the calanoid copepod Acartia tonsa. Bottom-up effects of elevated pCO2 caused species-specific biochemical changes to the phytoplanktonic feed, which adversely affected copepod population structure and decreased recruitment by 30 %. The direct impact of elevated pCO2 caused gender-specific respiratory responses in A.tonsa adults, stimulating an enhanced respiration rate in males (> 2-fold), and a suppressed respiratory response in females when coupled with indirect elevated ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2016-03-18. ...