Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer
Several fish species of the suborder Notothenioidei (Perciformes) predominate in the Antarctic Convergence Zone; nevertheless, reproductive studies are scarce due to difficulties on regular sampling. This study takes the research area of reproductive biology of notothenioids to a new level by provid...
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ftconicet:oai:ri.conicet.gov.ar:11336/60745 2023-10-09T21:45:31+02:00 Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer Ferreira, Maria Florencia Varela, María Luisa Lo Nostro, Fabiana Laura Ansaldo, Martin Genovese, Griselda application/pdf http://hdl.handle.net/11336/60745 eng eng Springer info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-1918-x info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-016-1918-x http://hdl.handle.net/11336/60745 Ferreira, Maria Florencia; Varela, María Luisa; Lo Nostro, Fabiana Laura; Ansaldo, Martin; Genovese, Griselda; Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer; Springer; Polar Biology; 40; 1; 1-2017; 1-11 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ GROUP SYNCHRONOUS OVARIAN DEVELOPMENT NOTOTHENIIDAE POTTER COVE SEX STEROIDS VITELLOGENIN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-016-1918-x 2023-09-24T18:36:55Z Several fish species of the suborder Notothenioidei (Perciformes) predominate in the Antarctic Convergence Zone; nevertheless, reproductive studies are scarce due to difficulties on regular sampling. This study takes the research area of reproductive biology of notothenioids to a new level by providing, for the first time, data on sex hormone and vitellogenin detection in the blood of females of Notothenia rossii and N. coriiceps and correlates this data with morphological maturity indices as well as ovarian histology. Fish were captured during the Antarctic summer at Potter Cove, 25 de Mayo (King George) Island, and blood and ovary were collected. Histological analysis revealed that females of both fish possess group synchronous ovarian development with two distinct clutches of oocytes: a more advanced batch of vitellogenic oocytes ready for spawning and a second batch of previtellogenic oocytes for the next spawning event. Since liver vitellogenin synthesis is stimulated by estradiol produced by the ovaries, gonadal development, estradiol levels, and vitellogenin showed that both species were at a more advanced stage of maturation in March than in January. On the other hand and irrespectively of the month, gonadosomatic index and plasma estradiol levels of N. coriiceps were higher than those of N. rossii. Furthermore, females of N. coriiceps showed an advanced stage of vitellogenesis or were ready for spawn, contrary to results of previous studies. Our results indicate the successful use of gonadal morphology, estradiol, and vitellogenin detection for the estimation of sexual maturity stage of female adults. Fil: Ferreira, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de ... Article in Journal/Newspaper Antarc* Antarctic King George Island Notothenia rossii Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Austral King George Island Potter Cove Argentina 25 de Mayo ENVELOPE(-58.000,-58.000,-62.083,-62.083) Ferreira ENVELOPE(-62.050,-62.050,-64.600,-64.600) Polar Biology 40 1 1 11 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
GROUP SYNCHRONOUS OVARIAN DEVELOPMENT NOTOTHENIIDAE POTTER COVE SEX STEROIDS VITELLOGENIN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
GROUP SYNCHRONOUS OVARIAN DEVELOPMENT NOTOTHENIIDAE POTTER COVE SEX STEROIDS VITELLOGENIN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Ferreira, Maria Florencia Varela, María Luisa Lo Nostro, Fabiana Laura Ansaldo, Martin Genovese, Griselda Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
topic_facet |
GROUP SYNCHRONOUS OVARIAN DEVELOPMENT NOTOTHENIIDAE POTTER COVE SEX STEROIDS VITELLOGENIN https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Several fish species of the suborder Notothenioidei (Perciformes) predominate in the Antarctic Convergence Zone; nevertheless, reproductive studies are scarce due to difficulties on regular sampling. This study takes the research area of reproductive biology of notothenioids to a new level by providing, for the first time, data on sex hormone and vitellogenin detection in the blood of females of Notothenia rossii and N. coriiceps and correlates this data with morphological maturity indices as well as ovarian histology. Fish were captured during the Antarctic summer at Potter Cove, 25 de Mayo (King George) Island, and blood and ovary were collected. Histological analysis revealed that females of both fish possess group synchronous ovarian development with two distinct clutches of oocytes: a more advanced batch of vitellogenic oocytes ready for spawning and a second batch of previtellogenic oocytes for the next spawning event. Since liver vitellogenin synthesis is stimulated by estradiol produced by the ovaries, gonadal development, estradiol levels, and vitellogenin showed that both species were at a more advanced stage of maturation in March than in January. On the other hand and irrespectively of the month, gonadosomatic index and plasma estradiol levels of N. coriiceps were higher than those of N. rossii. Furthermore, females of N. coriiceps showed an advanced stage of vitellogenesis or were ready for spawn, contrary to results of previous studies. Our results indicate the successful use of gonadal morphology, estradiol, and vitellogenin detection for the estimation of sexual maturity stage of female adults. Fil: Ferreira, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de ... |
format |
Article in Journal/Newspaper |
author |
Ferreira, Maria Florencia Varela, María Luisa Lo Nostro, Fabiana Laura Ansaldo, Martin Genovese, Griselda |
author_facet |
Ferreira, Maria Florencia Varela, María Luisa Lo Nostro, Fabiana Laura Ansaldo, Martin Genovese, Griselda |
author_sort |
Ferreira, Maria Florencia |
title |
Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
title_short |
Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
title_full |
Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
title_fullStr |
Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
title_full_unstemmed |
Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer |
title_sort |
reproductive aspects of notothenia rossii and n. coriiceps (perciformes, nototheniidae) at potter cove, 25 de mayo (king george) island during austral summer |
publisher |
Springer |
url |
http://hdl.handle.net/11336/60745 |
long_lat |
ENVELOPE(-58.000,-58.000,-62.083,-62.083) ENVELOPE(-62.050,-62.050,-64.600,-64.600) |
geographic |
Antarctic The Antarctic Austral King George Island Potter Cove Argentina 25 de Mayo Ferreira |
geographic_facet |
Antarctic The Antarctic Austral King George Island Potter Cove Argentina 25 de Mayo Ferreira |
genre |
Antarc* Antarctic King George Island Notothenia rossii Polar Biology |
genre_facet |
Antarc* Antarctic King George Island Notothenia rossii Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-1918-x info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00300-016-1918-x http://hdl.handle.net/11336/60745 Ferreira, Maria Florencia; Varela, María Luisa; Lo Nostro, Fabiana Laura; Ansaldo, Martin; Genovese, Griselda; Reproductive aspects of Notothenia rossii and N. coriiceps (Perciformes, Nototheniidae) at Potter Cove, 25 de Mayo (King George) Island during austral summer; Springer; Polar Biology; 40; 1; 1-2017; 1-11 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-016-1918-x |
container_title |
Polar Biology |
container_volume |
40 |
container_issue |
1 |
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1 |
op_container_end_page |
11 |
_version_ |
1779319433224781824 |