Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00300-019-02540-1 http://hdl.handle.net/11449/186054 |
Resumo: | Most Antarctic notothenioids exhibit clear geographic structure at large scales of spatial separation, generally between populations off different Ocean sectors. At smaller distances, there is great variation in the extent of population structuring. The Antarctic Peninsula and the archipelago of the South Shetland Islands are separated by a narrow strait of deep water (1000 m). Despite the proximity of these two areas, the confluence of water masses of different origins establishes frontal systems and local gyres which may preclude migration between shelf populations. Among the most abundant fish species in the area, the painted notothen Lepidonotothen larseni and the gaudy notothen Lepidonotothen nudifrons are two of the most numerous and widely distributed. In the present study, the genetic and morphological population structure of these closely related species was evaluated between the Antarctic Peninsula and the South Shetland Islands. Nine meristic counts, 18 inter-landmark distances and a mitochondrial DNA marker (D-loop) were analyzed. Populations of L. nudifrons were significantly different based on both, morphogeometric and genetic analyses, while L. larseni showed no population differentiation. The results showed a moderate structuring not correlated with distance between L. nudifrons populations off the Antarctic Peninsula and the South Shetland Islands. These findings provide evidence that differences between the studied species may be linked to key life history events, such as timing and location of egg development, hatching times and dispersal period of larvae. The present data suggest that notothenioid population structuring at regional scale may be related to a combination of life history traits, oceanographic features and local adaptation. |
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Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, AntarcticaNotothenioideiAntarctic fishesSouthern oceanLandmark-based morphometryMitochondrial DNAMost Antarctic notothenioids exhibit clear geographic structure at large scales of spatial separation, generally between populations off different Ocean sectors. At smaller distances, there is great variation in the extent of population structuring. The Antarctic Peninsula and the archipelago of the South Shetland Islands are separated by a narrow strait of deep water (1000 m). Despite the proximity of these two areas, the confluence of water masses of different origins establishes frontal systems and local gyres which may preclude migration between shelf populations. Among the most abundant fish species in the area, the painted notothen Lepidonotothen larseni and the gaudy notothen Lepidonotothen nudifrons are two of the most numerous and widely distributed. In the present study, the genetic and morphological population structure of these closely related species was evaluated between the Antarctic Peninsula and the South Shetland Islands. Nine meristic counts, 18 inter-landmark distances and a mitochondrial DNA marker (D-loop) were analyzed. Populations of L. nudifrons were significantly different based on both, morphogeometric and genetic analyses, while L. larseni showed no population differentiation. The results showed a moderate structuring not correlated with distance between L. nudifrons populations off the Antarctic Peninsula and the South Shetland Islands. These findings provide evidence that differences between the studied species may be linked to key life history events, such as timing and location of egg development, hatching times and dispersal period of larvae. The present data suggest that notothenioid population structuring at regional scale may be related to a combination of life history traits, oceanographic features and local adaptation.Consejo Nacional de Investigaciones Cientificas y Tecnicas (Project-FONDO IBOL)Universidad Nacional de Mar del Plata (EXA Grant)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CONICETexternal CONICET CPA fellowshipCONICET UNMdP, Grp Biotaxon Morfol & Mol Peces BIMOPE, Inst Invest Marinas & Costeras, Funes 3350, RA-7600 Mar Del Plata, Buenos Aires, ArgentinaConsejo Nacl Invest Cient & Tecn, Av Rivadavia 1917,CABA C1033AAJ, Buenos Aires, DF, ArgentinaUniv Nacl Sur, Lab Vertebrados, Dept Biol Bioquim & Farm, San Juan 670, RA-8000 Bahia Blanca, Buenos Aires, ArgentinaUniv Estadual Paulista, Dept Morfol, Inst Biociencias, Dist Rubiao Jr S-N, BR-18618970 Botucatu, SP, BrazilUniv Estadual Paulista, Dept Morfol, Inst Biociencias, Dist Rubiao Jr S-N, BR-18618970 Botucatu, SP, BrazilConsejo Nacional de Investigaciones Cientificas y Tecnicas (Project-FONDO IBOL): 3657/15Universidad Nacional de Mar del Plata (EXA Grant): 767/16CNPq: 306054/2006-0FAPESP: 2016/09204-6external CONICET CPA fellowship: 12020160100004COSpringerCONICET UNMdPConsejo Nacl Invest Cient & TecnUniv Nacl SurUniversidade Estadual Paulista (Unesp)Deli Antoni, Mariana Y.Delpiani, Sergio M.Gonzalez-Castro, MarianoBlasina, Gabriela E.Spath, Maria C.Depiani, Gabriela E.Ashikaga, Fernando Y. [UNESP]Cruz, Vanessa P. [UNESP]Oliveira, Claudio [UNESP]Diaz de Astarloa, Juan M.2019-10-04T12:40:51Z2019-10-04T12:40:51Z2019-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1537-1547http://dx.doi.org/10.1007/s00300-019-02540-1Polar Biology. New York: Springer, v. 42, n. 8, p. 1537-1547, 2019.0722-4060http://hdl.handle.net/11449/18605410.1007/s00300-019-02540-1WOS:000482050500011Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolar Biologyinfo:eu-repo/semantics/openAccess2021-10-23T17:52:00Zoai:repositorio.unesp.br:11449/186054Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
title |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
spellingShingle |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica Deli Antoni, Mariana Y. Notothenioidei Antarctic fishes Southern ocean Landmark-based morphometry Mitochondrial DNA |
title_short |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
title_full |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
title_fullStr |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
title_full_unstemmed |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
title_sort |
Comparative populational study of Lepidonotothen larseni and L. nudifrons (Teleostei: Nototheniidae) from the Antarctic Peninsula and the South Shetland Islands, Antarctica |
author |
Deli Antoni, Mariana Y. |
author_facet |
Deli Antoni, Mariana Y. Delpiani, Sergio M. Gonzalez-Castro, Mariano Blasina, Gabriela E. Spath, Maria C. Depiani, Gabriela E. Ashikaga, Fernando Y. [UNESP] Cruz, Vanessa P. [UNESP] Oliveira, Claudio [UNESP] Diaz de Astarloa, Juan M. |
author_role |
author |
author2 |
Delpiani, Sergio M. Gonzalez-Castro, Mariano Blasina, Gabriela E. Spath, Maria C. Depiani, Gabriela E. Ashikaga, Fernando Y. [UNESP] Cruz, Vanessa P. [UNESP] Oliveira, Claudio [UNESP] Diaz de Astarloa, Juan M. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
CONICET UNMdP Consejo Nacl Invest Cient & Tecn Univ Nacl Sur Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Deli Antoni, Mariana Y. Delpiani, Sergio M. Gonzalez-Castro, Mariano Blasina, Gabriela E. Spath, Maria C. Depiani, Gabriela E. Ashikaga, Fernando Y. [UNESP] Cruz, Vanessa P. [UNESP] Oliveira, Claudio [UNESP] Diaz de Astarloa, Juan M. |
dc.subject.por.fl_str_mv |
Notothenioidei Antarctic fishes Southern ocean Landmark-based morphometry Mitochondrial DNA |
topic |
Notothenioidei Antarctic fishes Southern ocean Landmark-based morphometry Mitochondrial DNA |
description |
Most Antarctic notothenioids exhibit clear geographic structure at large scales of spatial separation, generally between populations off different Ocean sectors. At smaller distances, there is great variation in the extent of population structuring. The Antarctic Peninsula and the archipelago of the South Shetland Islands are separated by a narrow strait of deep water (1000 m). Despite the proximity of these two areas, the confluence of water masses of different origins establishes frontal systems and local gyres which may preclude migration between shelf populations. Among the most abundant fish species in the area, the painted notothen Lepidonotothen larseni and the gaudy notothen Lepidonotothen nudifrons are two of the most numerous and widely distributed. In the present study, the genetic and morphological population structure of these closely related species was evaluated between the Antarctic Peninsula and the South Shetland Islands. Nine meristic counts, 18 inter-landmark distances and a mitochondrial DNA marker (D-loop) were analyzed. Populations of L. nudifrons were significantly different based on both, morphogeometric and genetic analyses, while L. larseni showed no population differentiation. The results showed a moderate structuring not correlated with distance between L. nudifrons populations off the Antarctic Peninsula and the South Shetland Islands. These findings provide evidence that differences between the studied species may be linked to key life history events, such as timing and location of egg development, hatching times and dispersal period of larvae. The present data suggest that notothenioid population structuring at regional scale may be related to a combination of life history traits, oceanographic features and local adaptation. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:40:51Z 2019-10-04T12:40:51Z 2019-08-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s00300-019-02540-1 Polar Biology. New York: Springer, v. 42, n. 8, p. 1537-1547, 2019. 0722-4060 http://hdl.handle.net/11449/186054 10.1007/s00300-019-02540-1 WOS:000482050500011 |
url |
http://dx.doi.org/10.1007/s00300-019-02540-1 http://hdl.handle.net/11449/186054 |
identifier_str_mv |
Polar Biology. New York: Springer, v. 42, n. 8, p. 1537-1547, 2019. 0722-4060 10.1007/s00300-019-02540-1 WOS:000482050500011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polar Biology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1537-1547 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964551558463488 |