New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications
The tiger shark <i>Galeocerdo cuvier</i> (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/12/20/2774 |
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| author | Izar Aximoff Rodrigo Cumplido Marcelo Tardelli Rodrigues Ubirajara Gonçalves de Melo Eduardo Barros Fagundes Netto Sérgio Ricardo Santos Rachel Ann Hauser-Davis |
| author_facet | Izar Aximoff Rodrigo Cumplido Marcelo Tardelli Rodrigues Ubirajara Gonçalves de Melo Eduardo Barros Fagundes Netto Sérgio Ricardo Santos Rachel Ann Hauser-Davis |
| author_sort | Izar Aximoff |
| collection | DOAJ |
| description | The tiger shark <i>Galeocerdo cuvier</i> (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority shark conservation area, many shark species, including tiger sharks, are landed by both industrial and artisanal fisheries in this state. However, there is a lack of detailed information on the species capture pressures and records for the state of Rio de Janeiro. Therefore, the aims of this study were to expand the tiger shark record database and to improve upon future conservation and management strategies. Tiger shark records from four coastal Rio de Janeiro regions were obtained by direct observation. The information obtained from fishery colonies/associations, environmental guards, researchers, and scientific articles, totaling 23 records, resulted in an approximately 5-fold increase in the number of tiger shark records off the coast of the state of Rio de Janeiro. A possible seasonality pattern concerning the size of the captured/observed animals was noted, emphasizing the need to consider the coast of Rio de Janeiro as an especially relevant area for at least part of the life history of tiger sharks. |
| first_indexed | 2024-03-09T20:51:36Z |
| format | Article |
| id | doaj.art-6cd6a79151ea483fb1322e6239ccde95 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-09T20:51:36Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-6cd6a79151ea483fb1322e6239ccde952023-11-23T22:31:40ZengMDPI AGAnimals2076-26152022-10-011220277410.3390/ani12202774New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality IndicationsIzar Aximoff0Rodrigo Cumplido1Marcelo Tardelli Rodrigues2Ubirajara Gonçalves de Melo3Eduardo Barros Fagundes Netto4Sérgio Ricardo Santos5Rachel Ann Hauser-Davis6Laboratório de Radioecologia e Mudanças Globais, Núcleo de Fotografia Cientifica Ambiental, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, nº 524, PHLC Subsolo, Maracanã, Rio de Janeiro 20550-900, RJ, BrazilPrograma de Pós-Graduação em Oceanografia (PPG-OCN), Centro de Tecnologia e Ciências, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, nº 524, Maracanã, Rio de Janeiro 20550-000, RJ, BrazilLaboratório de Ecotoxicologia e Microbiologia Ambiental (LEMAM), Instituto Federal de Educação, Ciência e Tecnologia Fluminense (IFF), Campus Cabo Frio, Estrada Cabo Frio-Búzios, s/nº, Baía Formosa, Cabo Frio 28909-971, RJ, BrazilPrograma Associado de Pós-Graduação em Biotecnologia Marinha (PPGBM), Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Universidade Federal Fluminense (UFF), Rua Kioto, nº 253, Praia dos Anjos, Arraial do Cabo 28930-000, RJ, BrazilDivisão de Oceanografia Biológica, Departamento de Oceanografia, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Rua Kioto, nº 253, Praia dos Anjos, Arraial do Cabo 28930-000, RJ, BrazilLaboratório de Biologia e Tecnologia Pesqueira (BioTecPesca), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-590, RJ, BrazilLaboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, nº 4.365, Manguinhos, Rio de Janeiro 21040-360, RJ, BrazilThe tiger shark <i>Galeocerdo cuvier</i> (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority shark conservation area, many shark species, including tiger sharks, are landed by both industrial and artisanal fisheries in this state. However, there is a lack of detailed information on the species capture pressures and records for the state of Rio de Janeiro. Therefore, the aims of this study were to expand the tiger shark record database and to improve upon future conservation and management strategies. Tiger shark records from four coastal Rio de Janeiro regions were obtained by direct observation. The information obtained from fishery colonies/associations, environmental guards, researchers, and scientific articles, totaling 23 records, resulted in an approximately 5-fold increase in the number of tiger shark records off the coast of the state of Rio de Janeiro. A possible seasonality pattern concerning the size of the captured/observed animals was noted, emphasizing the need to consider the coast of Rio de Janeiro as an especially relevant area for at least part of the life history of tiger sharks.https://www.mdpi.com/2076-2615/12/20/2774elasmobranchsgeographic distributioncitizen sciencesoutheastern Brazil |
| spellingShingle | Izar Aximoff Rodrigo Cumplido Marcelo Tardelli Rodrigues Ubirajara Gonçalves de Melo Eduardo Barros Fagundes Netto Sérgio Ricardo Santos Rachel Ann Hauser-Davis New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications Animals elasmobranchs geographic distribution citizen science southeastern Brazil |
| title | New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications |
| title_full | New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications |
| title_fullStr | New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications |
| title_full_unstemmed | New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications |
| title_short | New Occurrences of the Tiger Shark (<i>Galeocerdo cuvier)</i> (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications |
| title_sort | new occurrences of the tiger shark i galeocerdo cuvier i carcharhinidae off the coast of rio de janeiro southeastern brazil seasonality indications |
| topic | elasmobranchs geographic distribution citizen science southeastern Brazil |
| url | https://www.mdpi.com/2076-2615/12/20/2774 |
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