{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:13:03Z","timestamp":1783469583284,"version":"3.55.0"},"reference-count":52,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,8,26]],"date-time":"2024-08-26T00:00:00Z","timestamp":1724630400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biology"],"abstract":"<jats:p>Following preliminary underwater observations of about 1000 h carried out monthly between 2012 and 2023 (except the years 2021 and 2022), 23 specimens of grey reef sharks were spotted and photo-identified off the coast of Nosy Be in Madagascar, on an emerging reef called \u201cMokarran\u201d at a depth between 15 and 30 m. Over 10 years of observations, eight specimens were re-sighted, identified with a non-invasive photo-identification technique of part of the first dorsal and the caudal fin, and one specimen was re-identified after 1982 days from the first sighting, i.e., after more than 5 years. In addition, six specimens of probably pregnant females were also identified in the same area. The population was entirely made up of females. The aggregation area could represent a new nursery site which, if confirmed after further investigations, will require greater protection.<\/jats:p>","DOI":"10.3390\/biology13090661","type":"journal-article","created":{"date-parts":[[2024,8,26]],"date-time":"2024-08-26T07:53:37Z","timestamp":1724658817000},"page":"661","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Observations on an Aggregation of Grey Reef Sharks (Carcharhinus amblyrhynchos) in the Mozambique Channel Off the Coast of Nosy Be (Madagascar) and Tools for Photo-Identification\u2014A New Aggregation Nursery Site?"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0582-3770","authenticated-orcid":false,"given":"Primo","family":"Micarelli","sequence":"first","affiliation":[{"name":"Sharks Studies Center\u2014Scientific Institute, 58024 Massa Marittima, Italy"},{"name":"Department of Physical Sciences, Earth and Environment, University of Siena, 53100 Siena, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Pireddu","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences, University of Cagliari, 09126 Cagliari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Damiano","family":"Persia","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marco","family":"Sanna","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences, University of Cagliari, 09126 Cagliari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Consuelo","family":"Vicariotto","sequence":"additional","affiliation":[{"name":"Sharks Studies Center\u2014Scientific Institute, 58024 Massa Marittima, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0163-4956","authenticated-orcid":false,"given":"Antonio","family":"Pacifico","sequence":"additional","affiliation":[{"name":"Department of Economics and Law, University of Macerata, 62100 Macerata, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pietro","family":"Storelli","sequence":"additional","affiliation":[{"name":"Sharks Studies Center\u2014Scientific Institute, 58024 Massa Marittima, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makenna","family":"Mahrer","sequence":"additional","affiliation":[{"name":"W. M. Keck Science Department, Claremont McKenna College, Claremont, CA 91711, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emanuele","family":"Venanzi","sequence":"additional","affiliation":[{"name":"Manta Diving Nosy Be, Nosy Be 207, Madagascar"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8400-1227","authenticated-orcid":false,"given":"Francesca Romana","family":"Reinero","sequence":"additional","affiliation":[{"name":"Sharks Studies Center\u2014Scientific Institute, 58024 Massa Marittima, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,26]]},"reference":[{"key":"ref_1","unstructured":"Simpfendorfer, C., Fahmi, A.B.A., Utzurrum, J.A.T., Seyha, L., Maung, A., Bineesh, K.K., Yuneni, R.R., Sianipar, A., Haque, A.B., and Tanay, D. (2024, February 01). Carcharhinus amblyrhynchos. The IUCN Red List of Threatened Species. 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