Regional patterns of δ13C and δ15N for European common cuttlefish (Sepia officinalis) throughout the Northeast Atlantic Ocean and Mediterranean Sea

Royal Society Open Science

卷:8

Giovanni Bearzi¹  Emily N. Meese¹  Antonio V. Sykes²  Miguel Baptista³  R. J. David Wells⁴  Rui Rosa⁴  Piero Addis⁴  Thomas Lacoue-Labarthe⁵  Persefoni Megalofonou⁶  Ignacio Sobrino⁷  Haritz Arrizabalaga⁷  Jay R. Rooker⁷  Roger Villanueva⁸  Igaratza Fraile⁸ 

[1] AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia-Portualdea z/g, 20110 Pasaia – Gipuzkoa, Spain;

[2] Department of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece;

[3] Department of Environmental and Life Science, University of Cagliari, Via Fiorelli 1, 09126 Cagliari, Italy;

[4] Department of Marine Biology, Texas A&

[5] Dolphin Biology and Conservation, Cordenons, Pordenone, Italy;

[6] LIttoral Environnement et Sociétés (LIENSs) – UMR 7266 Bâtiment ILE, 2, rue Olympe de Gouges, 17000 La Rochelle, France;

[7] M University, 1001 Texas Clipper Road, Galveston, TX 77553, USA;

[8] Marine and Environmental Sciences Centre, Laboratorio Maritimo da Guia, Faculdade de Ciencias, Universidade de Lisboa, Avenida Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal;

关键词: stable isotopes;    δ13C and δ15N;    cuttlefish;    cephalopod;    natural tracers;   

DOI  :  10.1098/rsos.210345

来源: DOAJ

【 摘 要 】

Stable isotope compositions of carbon and nitrogen (expressed as δ13C and δ15N) 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 δ13C and δ15N values were found among S. officinalis samples relative to sampling location. δ13C values did not show any discernable spatial trends; however, a distinct pattern of lower δ15N values in the Mediterranean Sea relative to the NEAO existed. Mean δ15N 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 δ15N 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.

【 授权许可】

Unknown