Regional patterns ofδ 13 C andδ 15 N for European common cuttlefish ( Sepia officinalis) throughout the Northeast Atlantic Ocean and Mediterranean Sea

Stable isotope compositions of carbon and nitrogen (expressed as δ 13 C and δ 15 N) from the European common cuttlefish ( Sepia officinalis ) were measured in order to evaluate the utility of using these natural tracers throughout the Northeast Atlantic Ocean and Mediterranean Sea (NEAO-MS). Mantle...

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Bibliographic Details
Published in:Royal Society Open Science
Main Authors: David Wells, R. J., Rooker, Jay R., Addis, Piero, Arrizabalaga, Haritz, Baptista, Miguel, Bearzi, Giovanni, Fraile, Igaratza, Lacoue-Labarthe, Thomas, Meese, Emily N., Megalofonou, Persefoni, Rosa, Rui, Sobrino, Ignacio, Sykes, Antonio V., Villanueva, Roger
Other Authors: Fundação para a Ciência e a Tecnologia, OCTOSET project, Texas A&M University, Agencia Española de Investigación
Format: Article in Journal/Newspaper
Language:English
Published: The Royal Society 2021
Subjects:
Northeast Atlantic
Online Access:http://dx.doi.org/10.1098/rsos.210345
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.210345
https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.210345
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Summary:Stable isotope compositions of carbon and nitrogen (expressed as δ 13 C and δ 15 N) from the European common cuttlefish ( Sepia officinalis ) were measured in order to evaluate the utility of using these natural tracers throughout the Northeast Atlantic Ocean and Mediterranean Sea (NEAO-MS). Mantle tissue was obtained from S. officinalis collected from 11 sampling locations spanning a wide geographical coverage in the NEAO-MS. Significant differences of both δ 13 C and δ 15 N values were found among S. officinalis samples relative to sampling location. δ 13 C values did not show any discernable spatial trends; however, a distinct pattern of lower δ 15 N values in the Mediterranean Sea relative to the NEAO existed. Mean δ 15 N values of S. officinalis in the Mediterranean Sea averaged 2.5‰ lower than conspecifics collected in the NEAO and showed a decreasing eastward trend within the Mediterranean Sea with the lowest values in the most eastern sampling locations. Results suggest δ 15 N may serve as a useful natural tracer for studies on the population structure of S. officinalis as well as other marine organisms throughout the NEAO-MS.

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