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
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Abstract:
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.
Keyword(s):
Related to:
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, Sr and Ca concentration, and salinity of water samples from the estuaries of the Gambia River, Sine-Saloum, and Volta River, 2017 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940804
Höpker, Sebastian N; Wu, Henry C; Lucassen, Friedrich; Sadio, Oumar; Brochier, Timothée; Nuworkpor, Ishmael Y; Kasemann, Simone A; Merschel, Peter; Westphal, Hildegard (2022): Sr Isotope Ratios (87Sr/86Sr) in Water and Fish Otoliths as Estuarine Salinity Tracers: Case Studies from Three NW African Rivers. Estuaries and Coasts, https://doi.org/10.1007/s12237-021-01041-x
Project(s):
Coverage:
Median Latitude: 11.024172 * Median Longitude: -10.816678 * South-bound Latitude: 5.824850 * West-bound Longitude: -16.581233 * North-bound Latitude: 13.752333 * East-bound Longitude: 0.622383
Event(s):
Gambia_River_RAP-GR-1 * Latitude: 13.495333 * Longitude: -16.581233 * Location: Gambia River estuary, Africa * Method/Device: Water sample (WS) * Comment: Sampling campaign: April 2017
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Höpker, Sebastian N | |||
| 2 | LATITUDE | Latitude | Höpker, Sebastian N | Geocode | ||
| 3 | LONGITUDE | Longitude | Höpker, Sebastian N | Geocode | ||
| 4 | Location | Location | Höpker, Sebastian N | |||
| 5 | Species | Species | Höpker, Sebastian N | |||
| 6 | Sample ID | Sample ID | Höpker, Sebastian N | |||
| 7 | Length, total | TL | mm | Höpker, Sebastian N | Total (longest) length of individual | |
| 8 | Fish, fork length | Fish f l | mm | Höpker, Sebastian N | ||
| 9 | Weight, total, wet | w tot wet | g | Höpker, Sebastian N | Total weight of individual | |
| 10 | Age | Age | a | Höpker, Sebastian N | Otolith-based. Age estimate based on annuli counting | |
| 11 | Age | Age | a | Höpker, Sebastian N | Size-based. Age estimate based on fish size and Von Bertalanffy equation | |
| 12 | Strontium/Calcium ratio | Sr/Ca | mmol/mol | Höpker, Sebastian N | Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) | |
| 13 | Strontium/Calcium ratio, standard deviation | Sr/Ca std dev | ± | Höpker, Sebastian N | Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES) | |
| 14 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Höpker, Sebastian N | Thermal Ionization Mass Spectrometry (TIMS) | Dissolved, aqueous | |
| 15 | Strontium-87/Strontium-86 ratio, error | 87Sr/86Sr e | ± | Höpker, Sebastian N | Thermal Ionization Mass Spectrometry (TIMS) | 2 standard errors of the mean (2SE) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
93 data points