anonymous 16352 87Sr/86Sr and Sr/Ca measured in the otoliths of catfish (Carlarius parkii and Chrysichthys nigrodigitatus) caught in the estuaries of the Gambia River, Sine-Saloum, and Volta River, 2017 Modern sub-surface water samples and the otoliths of catfish (Carlarius parkii and Chrysichthys nigrodigitatus) collected from the estuaries of the Gambia River (The Gambia), Sine-Saloum (Senegal), and Volta River (Ghana) in 2017 were analysed to investigate relationships between the Sr geochemistry and salinity. 87Sr/86Sr, Sr concentration, and salinity measured in water samples collected along the estuarine salinity gradients were used to establish mixing models describing their relationships. Bulk catfish otolith 87Sr/86Sr measurements were used to estimate habitat salinity of the fish based on these mixing models. Catch data (total length, fork length, weight) of catfish were recorded and used to estimate their age. Fish ages were further estimated based on otolith annuli. 16360 https://doi.org/10.1594/PANGAEA.940805 2022-02-09T09:08:54+0000 2022 18780 18779 18778 19192 19191 19190 18777 19189 14046 19188 19187 19186 19185 19184 19183 19182 19181 19180 19179 19178 16375 Höpker, Sebastian N; Wu, Henry C; Lucassen, Friedrich; Brochier, Timothée; Sadio, Oumar; Nuworkpor, Ishmael Y; Kasemann, Simone A; Merschel, Peter; Westphal, Hildegard (2022): 87Sr/86Sr and Sr/Ca measured in the otoliths of catfish (Carlarius parkii and Chrysichthys nigrodigitatus) caught in the estuaries of the Gambia River, Sine-Saloum, and Volta River, 2017 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940805 19926 19924 14888 19922 14834 14974 15328 19920