Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)

Detalhes bibliográficos
Autor(a) principal: Franco, Maria Cristina Oddone
Data de Publicação: 2007
Outros Autores: Paesch, Laura, Podstavka, Walter Norbis, Canziani, Gonzalo Velasco
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FURG (RI FURG)
Texto Completo: http://repositorio.furg.br/handle/1/5605
http://dx.doi.org/10.1590/S1679-87592007000300001
Resumo: A total number of 4824 Mustelus schmitti was sampled. Females ranged from 25 to 93 cm in spring and from 28 to 90 cm in summer. Males ranged from 34 to 82 and from 28 to 77 cm, respectively. Length composition of the population showed significant differences between spring and summer being females larger than males. Total length distribution did not show significant differences between cruises. Males density varied significantly between cruises while for the females no significant variation was observed. In the spring cruise, both sexes occurred at depths lower than 50 m. Females occurred in the whole area with adult occurrence only above 35°30’S. Mature males occurred throughout the area, immature males occurring in two trawls in Samborombón Bay. The summer cruise showed a discontinuous distribution of the species along the study area resulting in spatial segregation in two groups with immature females predominating in both of them.
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spelling Franco, Maria Cristina OddonePaesch, LauraPodstavka, Walter NorbisCanziani, Gonzalo Velasco2015-12-14T23:45:41Z2015-12-14T23:45:41Z2007ODDONE, Maria Cristina et al. Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s). Brazilian Journal of Oceanography, v. 55, n. 3, p. 167-177, 2007. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592007000300001>. Acesso em: 14 dez. 2015.1982-436Xhttp://repositorio.furg.br/handle/1/5605http://dx.doi.org/10.1590/S1679-87592007000300001A total number of 4824 Mustelus schmitti was sampled. Females ranged from 25 to 93 cm in spring and from 28 to 90 cm in summer. Males ranged from 34 to 82 and from 28 to 77 cm, respectively. Length composition of the population showed significant differences between spring and summer being females larger than males. Total length distribution did not show significant differences between cruises. Males density varied significantly between cruises while for the females no significant variation was observed. In the spring cruise, both sexes occurred at depths lower than 50 m. Females occurred in the whole area with adult occurrence only above 35°30’S. Mature males occurred throughout the area, immature males occurring in two trawls in Samborombón Bay. The summer cruise showed a discontinuous distribution of the species along the study area resulting in spatial segregation in two groups with immature females predominating in both of them.Um total de 4824 Mustelus schmitti foi amostrado. As fêmeas apresentaram comprimento total de 25-93 cm na primavera e 28-90 cm no verão enquanto os machos apresentaram 34-82 e de 28-77 cm, respectivamente. A composição de comprimentos da população mostrou diferenças significativas entre primavera e verão sendo as fêmeas maiores do que os machos. A distribuição de comprimento total não variou significativamente entre cruzeiros. A densidade variou significativamente entre cruzeiros nos machos sendo que a variação não foi expressiva nas fêmeas. No cruzeiro da primavera, ambos os sexos ocorreram em profundidades menores do que 50 m, as fêmeas ocorrendo em toda a área de estudo, as adultas somente acima da latitude 35°30’S. Os machos adultos foram observados em toda a área sendo que os imaturos somente em dois arrastos na Bahia de Samborombón. O cruzeiro de verão mostrou uma distribuição descontínua da espécie ao longo da área de estudo, resultando na segregação espacial em dois grupos, com predominância de fêmeas imaturas em ambos.engMustelus schmittiTriakidaePopulation structureMigrationRio de la PlataSouth western AtlanticSexual segregationEstrutura populacionalMigraçãoRio da PrataAtlântico Sul-OcidentalSegregação por sexosPopulation structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALPopulation structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and in.pdfPopulation structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and in.pdfapplication/pdf470267https://repositorio.furg.br/bitstream/1/5605/1/Population%20structure%2c%20distribution%20and%20abundance%20patterns%20of%20%20the%20patagonian%20smoothhound%20mustelus%20schmitti%20springer%2c%201939%20%28chondrichthyes%2c%20elasmobranchii%2c%20triakidae%29%20in%20the%20Rio%20de%20la%20Plata%20and%20in.pdf030823312372dcd7812fb192ecff4272MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.furg.br/bitstream/1/5605/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52open access1/56052015-12-14 21:45:41.547open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-12-14T23:45:41Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false
dc.title.pt_BR.fl_str_mv Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
title Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
spellingShingle Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
Franco, Maria Cristina Oddone
Mustelus schmitti
Triakidae
Population structure
Migration
Rio de la Plata
South western Atlantic
Sexual segregation
Estrutura populacional
Migração
Rio da Prata
Atlântico Sul-Ocidental
Segregação por sexos
title_short Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
title_full Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
title_fullStr Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
title_full_unstemmed Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
title_sort Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s)
author Franco, Maria Cristina Oddone
author_facet Franco, Maria Cristina Oddone
Paesch, Laura
Podstavka, Walter Norbis
Canziani, Gonzalo Velasco
author_role author
author2 Paesch, Laura
Podstavka, Walter Norbis
Canziani, Gonzalo Velasco
author2_role author
author
author
dc.contributor.author.fl_str_mv Franco, Maria Cristina Oddone
Paesch, Laura
Podstavka, Walter Norbis
Canziani, Gonzalo Velasco
dc.subject.por.fl_str_mv Mustelus schmitti
Triakidae
Population structure
Migration
Rio de la Plata
South western Atlantic
Sexual segregation
Estrutura populacional
Migração
Rio da Prata
Atlântico Sul-Ocidental
Segregação por sexos
topic Mustelus schmitti
Triakidae
Population structure
Migration
Rio de la Plata
South western Atlantic
Sexual segregation
Estrutura populacional
Migração
Rio da Prata
Atlântico Sul-Ocidental
Segregação por sexos
description A total number of 4824 Mustelus schmitti was sampled. Females ranged from 25 to 93 cm in spring and from 28 to 90 cm in summer. Males ranged from 34 to 82 and from 28 to 77 cm, respectively. Length composition of the population showed significant differences between spring and summer being females larger than males. Total length distribution did not show significant differences between cruises. Males density varied significantly between cruises while for the females no significant variation was observed. In the spring cruise, both sexes occurred at depths lower than 50 m. Females occurred in the whole area with adult occurrence only above 35°30’S. Mature males occurred throughout the area, immature males occurring in two trawls in Samborombón Bay. The summer cruise showed a discontinuous distribution of the species along the study area resulting in spatial segregation in two groups with immature females predominating in both of them.
publishDate 2007
dc.date.issued.fl_str_mv 2007
dc.date.accessioned.fl_str_mv 2015-12-14T23:45:41Z
dc.date.available.fl_str_mv 2015-12-14T23:45:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv ODDONE, Maria Cristina et al. Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s). Brazilian Journal of Oceanography, v. 55, n. 3, p. 167-177, 2007. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592007000300001>. Acesso em: 14 dez. 2015.
dc.identifier.uri.fl_str_mv http://repositorio.furg.br/handle/1/5605
dc.identifier.issn.none.fl_str_mv 1982-436X
dc.identifier.doi.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S1679-87592007000300001
identifier_str_mv ODDONE, Maria Cristina et al. Population structure, distribution and abundance patterns of the patagonian smoothhound mustelus schmitti springer, 1939 (chondrichthyes, elasmobranchii, triakidae) in the Rio de la Plata and inner continental shelf, SW Atlantic Ocean (34º30’-39º30’s). Brazilian Journal of Oceanography, v. 55, n. 3, p. 167-177, 2007. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592007000300001>. Acesso em: 14 dez. 2015.
1982-436X
url http://repositorio.furg.br/handle/1/5605
http://dx.doi.org/10.1590/S1679-87592007000300001
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instname:Universidade Federal do Rio Grande (FURG)
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instacron_str FURG
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reponame_str Repositório Institucional da FURG (RI FURG)
collection Repositório Institucional da FURG (RI FURG)
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