Seawater carbonate chemistry and antennular flicking and locomotory behaviours，olfactory nerve responses of Dungeness crab (Metacarcinus magister) ...

• Main Authors: Durant, Andrea, Khodikian, Elissa, Porteus, Cosima S
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Arthropoda; Behaviour; Benthic animals; Benthos; Containers and aquaria 20-1000 L or < 1 m**2; Gene expression incl. proteomics; Laboratory experiment; Laboratory strains; Metacarcinus magister; Not applicable; Other studied parameter or process; Single species; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Experiment; Figure; Sampling date/time, experiment; Treatment; Identification; Experiment duration; Antennular flicking rate; Salinity; Temperature, water; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Alkalinity, total; Aragonite saturation state; Calcite saturation state; Salinity, standard deviation; Temperature, water, standard deviation; pH, standard deviation; Partial pressure of carbon dioxide, standard deviation; Total distance travelled; Cadaverine; Replicate; Integrated nerve response; Ammonium chloride; Total cell fluorescence, corrected; Area; mRNA abundance, relative; Carbonate system computation flag; Carbon dioxide; Calculated using seacarb after Nisumaa et al. 2010; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.960337; https://doi.pangaea.de/10.1594/PANGAEA.960337

Crustacean olfaction is fundamental to most aspects of living and communicating in aquatic environments and more broadly, for individual- and population-level success. Accelerated ocean acidification from elevated CO2 threatens the ability of crabs to detect and respond to important olfactory-related cues. Here, we demonstrate that the ecologically and economically important Dungeness crab (Metacarcinus magister) exhibits reduced olfactory-related antennular flicking responses to a food cue when exposed to near-future CO2 levels, adding to the growing body of evidence of impaired crab behaviour. Underlying this altered behaviour, we find that crabs have lower olfactory nerve sensitivities (twofold reduction in antennular nerve activity) in response to a food cue when exposed to elevated CO2. This suggests that near-future CO2 levels will impact the threshold of detection of food by crabs. We also show that lower olfactory nerve sensitivity in elevated CO2 is accompanied by a decrease in the olfactory sensory ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 by seacarb is 2023-07-05. ...