Data from: Ocean warming and acidification may challenge the riverward migration of glass eels ...

• Main Authors: Borges, Francisco O., Santos, Catarina P., Sampaio, Eduardo, Figueiredo, Cátia, Paula, José Ricardo, Antunes, Carlos, Rosa, Rui, Grilo, Tiago F.
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: diadromy; Anguilla anguilla; chemoreception; river migration; Ocean acidification
• Online Access: https://dx.doi.org/10.5061/dryad.7jv4466; https://datadryad.org/stash/dataset/doi:10.5061/dryad.7jv4466

The dramatic decline of European eel (Anguilla anguilla) populations over recent decades has attracted considerable attention and concern. Furthermore, little is known concerning the sensitivity of eel’s early stages to projected future environmental change. Here we investigated, for the first time, the potential combined effects of ocean warming (OW; ∆ + 4oC; 18oC) and acidification (OA; ∆ - 0.4 pH units) on the survival and migratory behaviour of A. anguilla glass eels, namely their preference towards riverine cues (freshwater and geosmin). Recently arrived individuals were exposed to isolated and combined OW- and OA–conditions for 100 days, adjusting for the salinity gradients associated with upstream migration. A two-choice test was used to investigate migratory activity and shifts in preference towards freshwater environments. While OW decreased survival and increased migratory activity, OA appears to hinder migratory response, reducing the preference for riverine cues. Our results suggest that future ... : Santos&Borges_etal_DataIn this file, the data from our study on the influence of ocean warming and ocean acidification on the riverward migration of glass eels is present. These include survival and behavioural outputs as well as a code sheet for easier table read. The tables are R software ready and can be exported as '.csv' in order to run in the Rscript.BorgesSantos_etal_Data.xlsxSantos&Borges_etal_RscriptThis is the code for the Rscript of the statistical analysis performed in our study.BorgesSantos_etal_Rscript.txt ...