Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf
Nototheniidae is the most numerous family of notothenioids and, although they are mainly Antarctic, they are also well represented in Patagonian waters. In both Antarctic and sub-Antarctic waters, they adopt a wide variety of reproductive strategies. In Antarctic waters they usually have a biennial...
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ftuvalparaisocl:oai:revistas.uv.cl:article/4452 2024-09-30T14:25:08+00:00 Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf Marcinkevicius, Mauro S. Serrano-Aguirre, Carolina C. Jones, Bárbara A. Álvarez, María V. 2024-06-01 application/pdf https://revistas.uv.cl/index.php/rbmo/article/view/4452 spa spa Universidad de Valparaíso https://revistas.uv.cl/index.php/rbmo/article/view/4452/4194 https://revistas.uv.cl/index.php/rbmo/article/view/4452 Derechos de autor 2024 Mauro S. Marcinkevicius, Carolina C. Serrano-Aguirre, Bárbara A. Jones, María V. Álvarez https://creativecommons.org/licenses/by-nc/4.0 Revista de Biología Marina y Oceanografía; Vol. 59 Núm. 1 (2024); 29-38 0718-1957 0717-3326 Patagonotothen cornucola reproduction Patagonia nototheniids info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2024 ftuvalparaisocl 2024-09-12T23:33:56Z Nototheniidae is the most numerous family of notothenioids and, although they are mainly Antarctic, they are also well represented in Patagonian waters. In both Antarctic and sub-Antarctic waters, they adopt a wide variety of reproductive strategies. In Antarctic waters they usually have a biennial reproductive cycle, whereas in sub-Antarctic ones, they reproduce annually or biannually. In the intertidal zone of central Patagonia the most abundant nototheniid fish is Patagonotothen cornucola and, despite this, there is little information about their biology. The aim of this work was to study its reproductive cycle in a rocky intertidal coast of Argentine Patagonia by means of histological and morphological analyses. Samples were collected monthly at two intertidal sites in the San Jorge Gulf. Condition factor, gonadosomatic and hepatosomatic indexes were calculated and thin sections of gonads were stained with one-step trichrome to determine gonadal stages. Relative and potential fecundity were also estimated. Males and females mature synchronously and reach maximum gonadosomatic index between July and August. In females the hepatosomatic index increases synchronously with gonadosomatic index, while in males it remains constant throughout the cycle. It is concluded that P. cornucola has an annual reproductive cycle and that spawning occurs in winter. Maximum potential fecundity is approximately 27,095 oocytes in a 11.7 cm female and it increases with size. Article in Journal/Newspaper Antarc* Antarctic Portal de revistas - Universidad de Valparaíso Chile Antarctic Patagonia Argentine |
institution |
Open Polar |
collection |
Portal de revistas - Universidad de Valparaíso Chile |
op_collection_id |
ftuvalparaisocl |
language |
Spanish |
topic |
Patagonotothen cornucola reproduction Patagonia nototheniids |
spellingShingle |
Patagonotothen cornucola reproduction Patagonia nototheniids Marcinkevicius, Mauro S. Serrano-Aguirre, Carolina C. Jones, Bárbara A. Álvarez, María V. Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
topic_facet |
Patagonotothen cornucola reproduction Patagonia nototheniids |
description |
Nototheniidae is the most numerous family of notothenioids and, although they are mainly Antarctic, they are also well represented in Patagonian waters. In both Antarctic and sub-Antarctic waters, they adopt a wide variety of reproductive strategies. In Antarctic waters they usually have a biennial reproductive cycle, whereas in sub-Antarctic ones, they reproduce annually or biannually. In the intertidal zone of central Patagonia the most abundant nototheniid fish is Patagonotothen cornucola and, despite this, there is little information about their biology. The aim of this work was to study its reproductive cycle in a rocky intertidal coast of Argentine Patagonia by means of histological and morphological analyses. Samples were collected monthly at two intertidal sites in the San Jorge Gulf. Condition factor, gonadosomatic and hepatosomatic indexes were calculated and thin sections of gonads were stained with one-step trichrome to determine gonadal stages. Relative and potential fecundity were also estimated. Males and females mature synchronously and reach maximum gonadosomatic index between July and August. In females the hepatosomatic index increases synchronously with gonadosomatic index, while in males it remains constant throughout the cycle. It is concluded that P. cornucola has an annual reproductive cycle and that spawning occurs in winter. Maximum potential fecundity is approximately 27,095 oocytes in a 11.7 cm female and it increases with size. |
format |
Article in Journal/Newspaper |
author |
Marcinkevicius, Mauro S. Serrano-Aguirre, Carolina C. Jones, Bárbara A. Álvarez, María V. |
author_facet |
Marcinkevicius, Mauro S. Serrano-Aguirre, Carolina C. Jones, Bárbara A. Álvarez, María V. |
author_sort |
Marcinkevicius, Mauro S. |
title |
Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
title_short |
Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
title_full |
Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
title_fullStr |
Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
title_full_unstemmed |
Reproductive cycle of the sub-Antarctic nototheniid Patagonotothen cornucola (Nototheniidae) in the Argentine Patagonian Shelf |
title_sort |
reproductive cycle of the sub-antarctic nototheniid patagonotothen cornucola (nototheniidae) in the argentine patagonian shelf |
publisher |
Universidad de Valparaíso |
publishDate |
2024 |
url |
https://revistas.uv.cl/index.php/rbmo/article/view/4452 |
geographic |
Antarctic Patagonia Argentine |
geographic_facet |
Antarctic Patagonia Argentine |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Revista de Biología Marina y Oceanografía; Vol. 59 Núm. 1 (2024); 29-38 0718-1957 0717-3326 |
op_relation |
https://revistas.uv.cl/index.php/rbmo/article/view/4452/4194 https://revistas.uv.cl/index.php/rbmo/article/view/4452 |
op_rights |
Derechos de autor 2024 Mauro S. Marcinkevicius, Carolina C. Serrano-Aguirre, Bárbara A. Jones, María V. Álvarez https://creativecommons.org/licenses/by-nc/4.0 |
_version_ |
1811643584273711104 |