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Santos CC, Coelho R (2018) Migrations and habitat use of the smooth hammerhead shark (Sphyrna zygaena) in the Atlantic Ocean. PLoS ONE 13(6): e0198664. https://doi.org/10.1371/journal.pone.0198664
This article is academic peer-reviewed research material.
Catarina C. Santos is employed by the Portuguese Institute for the Ocean and Atmosphere, I.P., a government research institution in Portugal. Rui Coelho works at the University of Algarve’s Center of Marine Sciences in Faro, Portugal. They would therefore be considered experts in their field.
https://www.ipma.pt/en/oipma/
https://www.ccmar.ualg.pt/en/page/general-information
The article contains in-text citations throughout and a bibliography containing the relevant reference material.
The journal, PLOS ONE, is a non-profit publisher that sets high standards for the quality of material they accept. Every article they publish has been anonymously peer-reviewed by at least two external reviewers. (The details of their review process can be found at http://journals.plos.org/plosone/s/editorial-and-peer-review-process)
Santos and Coelho outline their procedure for tagging the sharks and measuring the depth of fishing gear used during this study as well as their methods of analyzing the data. The article discusses the results of the authors’ own research.