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. 2011 Jul 14;6(7):e22194. doi: 10.1371/journal.pone.0022194

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Lorrain et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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δ¹³C (filled circles) and δ¹⁵N (filled diamonds) values along the length of the gladius of a 65.2 cm ML jumbo squid. Grey symbols represent periods of migration, while black symbols illustrate a more fixed isotopic habitat.