Web Ecology
Web Ecology
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Articles | Volume 25, issue 2
Articles | Volume 25, issue 2
https://doi.org/10.5194/we-25-213-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/we-25-213-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 2
Short communication
 | 
03 Nov 2025
Short communication |  | 03 Nov 2025

First documentation of putative mating behavior in blue sharks (Prionace glauca) reveals a potential reproductive area in the Northeast Atlantic

Lennart Vossgaetter, Lukas Müller, Isaias Cruz, Marika Schultz, Anna T. Renner, and Maite Erauskin-Extramiana

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Short summary
We report the first visual observation of putative mating behavior in blue sharks off the Basque coast in northern Spain, where a mature male displayed courtship behavior toward a younger female. In addition, we found bite marks on multiple female sharks across 4 years, supporting ongoing mating activity in the region. These findings suggest that this area may be important for blue shark reproduction and highlight the need for more research on their life cycle and habitat use.
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