Sphyrna tudes, Smalleye Hammerhead
- Autores
- Pollom, R.; Barreto, R.; Charvet, P.; Chiaramonte, Gustavo Enrique; Cuevas, J. M.; Faria, V.; Herman, K.; Lasso Alcala, O.; Marcante, F.; Mejía Falla, P.A.; Montealegre Quijano, S.; Motta, F.; Navia, A. F.; Nunes, J.; Paesch, L.; Rincon, G.
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Smalleye Hammerhead (Sphyrna tudes) is a medium-sized (to 150 cm total length) shark that occurs in the Western Central and Southwest Atlantic from Colombia to the Rio de La Plata, Argentina. It inhabits inshore waters over the continental shelf at depths of 5–80 m. It is captured in intense and largely unmanaged commercial and artisanal beach seines, gillnets, longlines, and trawls throughout its geographic range. This shark is targeted or retained as bycatch for its meat, which is consumed or sold locally. There are few data on population reduction but these intensive unmanaged fisheries are suspected to have caused reductions and possibly local extinctions throughout this species' range. For example, in Brazil, this hammerhead has not been recorded in 35 years from Ceará state and it is considered by local fishers to be depleted in Bahia state. This shark is supposed to be strictly protected in Brazil, but it is clear that it is still landed and traded in various states. Overall, due to intense and largely unmanaged fisheries across its range, lack of refuge at depth, suspected declines in many areas and local extinctions suspected from an absence of records (despite continued sampling and observation), and its relatively unproductive life history, it is suspected that the Smalleye Hammerhead has undergone a population reduction of >80% over the past three generations (37 years), and it is assessed as Critically Endangered A2bd.
Fil: Pollom, R.. University Fraser Simon; Canadá
Fil: Barreto, R.. Instituto Chico Mendes de Conservacao Da Biodiversidade; Brasil
Fil: Charvet, P.. Universidade Federal do Paraná; Brasil
Fil: Chiaramonte, Gustavo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina
Fil: Cuevas, J. M.. Wildlife Conservation Society; Estados Unidos
Fil: Faria, V.. Universidade Federal Do Ceara; Brasil
Fil: Herman, K.. Georgia Aquarium; Estados Unidos
Fil: Lasso Alcala, O.. Fundación la Salle de Ciencias Naturales; Venezuela
Fil: Marcante, F.. Universidade Federal Do Rio Grande.; Brasil
Fil: Mejía Falla, P.A.. Wildlife Conservation Society; Estados Unidos
Fil: Montealegre Quijano, S.. Universidade Federal de Sao Paulo; Brasil
Fil: Motta, F.. Universidade Federal de Sao Paulo; Brasil
Fil: Navia, A. F.. Fundación Squalus; Colombia
Fil: Nunes, J.. Universidade Federal Do Maranhao.; Brasil
Fil: Paesch, L.. Dirección Nacional de Recursos Acuáticos; Uruguay
Fil: Rincon, G.. Universidade Federal Do Maranhao.; Brasil - Materia
-
Chondrichthyes
Carcharhiniformes
Sphyrnidae
Smalleye Hammerhead - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/145923
Ver los metadatos del registro completo
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Sphyrna tudes, Smalleye HammerheadPollom, R.Barreto, R.Charvet, P.Chiaramonte, Gustavo EnriqueCuevas, J. M.Faria, V.Herman, K.Lasso Alcala, O.Marcante, F.Mejía Falla, P.A.Montealegre Quijano, S.Motta, F.Navia, A. F.Nunes, J.Paesch, L.Rincon, G.ChondrichthyesCarcharhiniformesSphyrnidaeSmalleye Hammerheadhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Smalleye Hammerhead (Sphyrna tudes) is a medium-sized (to 150 cm total length) shark that occurs in the Western Central and Southwest Atlantic from Colombia to the Rio de La Plata, Argentina. It inhabits inshore waters over the continental shelf at depths of 5–80 m. It is captured in intense and largely unmanaged commercial and artisanal beach seines, gillnets, longlines, and trawls throughout its geographic range. This shark is targeted or retained as bycatch for its meat, which is consumed or sold locally. There are few data on population reduction but these intensive unmanaged fisheries are suspected to have caused reductions and possibly local extinctions throughout this species' range. For example, in Brazil, this hammerhead has not been recorded in 35 years from Ceará state and it is considered by local fishers to be depleted in Bahia state. This shark is supposed to be strictly protected in Brazil, but it is clear that it is still landed and traded in various states. Overall, due to intense and largely unmanaged fisheries across its range, lack of refuge at depth, suspected declines in many areas and local extinctions suspected from an absence of records (despite continued sampling and observation), and its relatively unproductive life history, it is suspected that the Smalleye Hammerhead has undergone a population reduction of >80% over the past three generations (37 years), and it is assessed as Critically Endangered A2bd.Fil: Pollom, R.. University Fraser Simon; CanadáFil: Barreto, R.. Instituto Chico Mendes de Conservacao Da Biodiversidade; BrasilFil: Charvet, P.. Universidade Federal do Paraná; BrasilFil: Chiaramonte, Gustavo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); ArgentinaFil: Cuevas, J. M.. Wildlife Conservation Society; Estados UnidosFil: Faria, V.. Universidade Federal Do Ceara; BrasilFil: Herman, K.. Georgia Aquarium; Estados UnidosFil: Lasso Alcala, O.. Fundación la Salle de Ciencias Naturales; VenezuelaFil: Marcante, F.. Universidade Federal Do Rio Grande.; BrasilFil: Mejía Falla, P.A.. Wildlife Conservation Society; Estados UnidosFil: Montealegre Quijano, S.. Universidade Federal de Sao Paulo; BrasilFil: Motta, F.. Universidade Federal de Sao Paulo; BrasilFil: Navia, A. F.. Fundación Squalus; ColombiaFil: Nunes, J.. Universidade Federal Do Maranhao.; BrasilFil: Paesch, L.. Dirección Nacional de Recursos Acuáticos; UruguayFil: Rincon, G.. Universidade Federal Do Maranhao.; BrasilInternational Union for Conservation of Nature2020-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/145923Pollom, R.; Barreto, R.; Charvet, P.; Chiaramonte, Gustavo Enrique; Cuevas, J. M.; et al.; Sphyrna tudes, Smalleye Hammerhead; International Union for Conservation of Nature; The IUCN Red List of Threatened Species; 12-2020; 1-142307-82352307-8235CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.iucnredlist.org/species/60202/3091946info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:59Zoai:ri.conicet.gov.ar:11336/145923instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:43:59.33CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Sphyrna tudes, Smalleye Hammerhead |
| title |
Sphyrna tudes, Smalleye Hammerhead |
| spellingShingle |
Sphyrna tudes, Smalleye Hammerhead Pollom, R. Chondrichthyes Carcharhiniformes Sphyrnidae Smalleye Hammerhead |
| title_short |
Sphyrna tudes, Smalleye Hammerhead |
| title_full |
Sphyrna tudes, Smalleye Hammerhead |
| title_fullStr |
Sphyrna tudes, Smalleye Hammerhead |
| title_full_unstemmed |
Sphyrna tudes, Smalleye Hammerhead |
| title_sort |
Sphyrna tudes, Smalleye Hammerhead |
| dc.creator.none.fl_str_mv |
Pollom, R. Barreto, R. Charvet, P. Chiaramonte, Gustavo Enrique Cuevas, J. M. Faria, V. Herman, K. Lasso Alcala, O. Marcante, F. Mejía Falla, P.A. Montealegre Quijano, S. Motta, F. Navia, A. F. Nunes, J. Paesch, L. Rincon, G. |
| author |
Pollom, R. |
| author_facet |
Pollom, R. Barreto, R. Charvet, P. Chiaramonte, Gustavo Enrique Cuevas, J. M. Faria, V. Herman, K. Lasso Alcala, O. Marcante, F. Mejía Falla, P.A. Montealegre Quijano, S. Motta, F. Navia, A. F. Nunes, J. Paesch, L. Rincon, G. |
| author_role |
author |
| author2 |
Barreto, R. Charvet, P. Chiaramonte, Gustavo Enrique Cuevas, J. M. Faria, V. Herman, K. Lasso Alcala, O. Marcante, F. Mejía Falla, P.A. Montealegre Quijano, S. Motta, F. Navia, A. F. Nunes, J. Paesch, L. Rincon, G. |
| author2_role |
author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Chondrichthyes Carcharhiniformes Sphyrnidae Smalleye Hammerhead |
| topic |
Chondrichthyes Carcharhiniformes Sphyrnidae Smalleye Hammerhead |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The Smalleye Hammerhead (Sphyrna tudes) is a medium-sized (to 150 cm total length) shark that occurs in the Western Central and Southwest Atlantic from Colombia to the Rio de La Plata, Argentina. It inhabits inshore waters over the continental shelf at depths of 5–80 m. It is captured in intense and largely unmanaged commercial and artisanal beach seines, gillnets, longlines, and trawls throughout its geographic range. This shark is targeted or retained as bycatch for its meat, which is consumed or sold locally. There are few data on population reduction but these intensive unmanaged fisheries are suspected to have caused reductions and possibly local extinctions throughout this species' range. For example, in Brazil, this hammerhead has not been recorded in 35 years from Ceará state and it is considered by local fishers to be depleted in Bahia state. This shark is supposed to be strictly protected in Brazil, but it is clear that it is still landed and traded in various states. Overall, due to intense and largely unmanaged fisheries across its range, lack of refuge at depth, suspected declines in many areas and local extinctions suspected from an absence of records (despite continued sampling and observation), and its relatively unproductive life history, it is suspected that the Smalleye Hammerhead has undergone a population reduction of >80% over the past three generations (37 years), and it is assessed as Critically Endangered A2bd. Fil: Pollom, R.. University Fraser Simon; Canadá Fil: Barreto, R.. Instituto Chico Mendes de Conservacao Da Biodiversidade; Brasil Fil: Charvet, P.. Universidade Federal do Paraná; Brasil Fil: Chiaramonte, Gustavo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina Fil: Cuevas, J. M.. Wildlife Conservation Society; Estados Unidos Fil: Faria, V.. Universidade Federal Do Ceara; Brasil Fil: Herman, K.. Georgia Aquarium; Estados Unidos Fil: Lasso Alcala, O.. Fundación la Salle de Ciencias Naturales; Venezuela Fil: Marcante, F.. Universidade Federal Do Rio Grande.; Brasil Fil: Mejía Falla, P.A.. Wildlife Conservation Society; Estados Unidos Fil: Montealegre Quijano, S.. Universidade Federal de Sao Paulo; Brasil Fil: Motta, F.. Universidade Federal de Sao Paulo; Brasil Fil: Navia, A. F.. Fundación Squalus; Colombia Fil: Nunes, J.. Universidade Federal Do Maranhao.; Brasil Fil: Paesch, L.. Dirección Nacional de Recursos Acuáticos; Uruguay Fil: Rincon, G.. Universidade Federal Do Maranhao.; Brasil |
| description |
The Smalleye Hammerhead (Sphyrna tudes) is a medium-sized (to 150 cm total length) shark that occurs in the Western Central and Southwest Atlantic from Colombia to the Rio de La Plata, Argentina. It inhabits inshore waters over the continental shelf at depths of 5–80 m. It is captured in intense and largely unmanaged commercial and artisanal beach seines, gillnets, longlines, and trawls throughout its geographic range. This shark is targeted or retained as bycatch for its meat, which is consumed or sold locally. There are few data on population reduction but these intensive unmanaged fisheries are suspected to have caused reductions and possibly local extinctions throughout this species' range. For example, in Brazil, this hammerhead has not been recorded in 35 years from Ceará state and it is considered by local fishers to be depleted in Bahia state. This shark is supposed to be strictly protected in Brazil, but it is clear that it is still landed and traded in various states. Overall, due to intense and largely unmanaged fisheries across its range, lack of refuge at depth, suspected declines in many areas and local extinctions suspected from an absence of records (despite continued sampling and observation), and its relatively unproductive life history, it is suspected that the Smalleye Hammerhead has undergone a population reduction of >80% over the past three generations (37 years), and it is assessed as Critically Endangered A2bd. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-12 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
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http://hdl.handle.net/11336/145923 Pollom, R.; Barreto, R.; Charvet, P.; Chiaramonte, Gustavo Enrique; Cuevas, J. M.; et al.; Sphyrna tudes, Smalleye Hammerhead; International Union for Conservation of Nature; The IUCN Red List of Threatened Species; 12-2020; 1-14 2307-8235 2307-8235 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/145923 |
| identifier_str_mv |
Pollom, R.; Barreto, R.; Charvet, P.; Chiaramonte, Gustavo Enrique; Cuevas, J. M.; et al.; Sphyrna tudes, Smalleye Hammerhead; International Union for Conservation of Nature; The IUCN Red List of Threatened Species; 12-2020; 1-14 2307-8235 CONICET Digital CONICET |
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eng |
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International Union for Conservation of Nature |
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International Union for Conservation of Nature |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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