Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882)
Diplopteraster verrucosus is a sea star that incubates its offspring in nidamental chambers. The offspring rely exclusively on maternally provided nutrition. The retention of the embryonic stages allows the allocation of nutritional supplies fromthe female to the brooded juveniles during the broodin...
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ftconicet:oai:ri.conicet.gov.ar:11336/127395 2023-10-09T21:56:04+02:00 Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) Fraysse, Cintia Pamela Boy, Claudia Clementina Becker, Yamila Anabella Calcagno, Javier Ángel Pérez, Soledad Analía application/pdf http://hdl.handle.net/11336/127395 eng eng Marine Biological Laboratory info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/10.1086/709664 info:eu-repo/semantics/altIdentifier/doi/10.1086/709664 http://hdl.handle.net/11336/127395 Fraysse, Cintia Pamela; Boy, Claudia Clementina; Becker, Yamila Anabella; Calcagno, Javier Ángel; Pérez, Soledad Analía; Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882); Marine Biological Laboratory; Biological Bulletin; 239; 1; 8-2020; 1-12 0006-3185 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ NAMUNCURÁ MARINE PROTECTED AREA ENERGY DENSITY REACTIVE OXYGEN SPECIES TOTAL ANTIOXIDANT CAPACITY 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/10.1086/709664 2023-09-24T18:44:13Z Diplopteraster verrucosus is a sea star that incubates its offspring in nidamental chambers. The offspring rely exclusively on maternally provided nutrition. The retention of the embryonic stages allows the allocation of nutritional supplies fromthe female to the brooded juveniles during the brooding period. Themain objectives of this study are, first, to quantify the reproductive investment of D. verrucosus and, second, to describe the morphology, energetics, and oxidative metabolism throughout early ontogenetic stages. A skewed sex ratio of 2:1 females:males was found, and 17 of 39 females were brooding. Both brooding and non-brooding females showed higher energy density and total antioxidant capacity in their gonads than males. We identified three cohorts of offspring being retained within the female body simultaneously. Energy density and reactive oxygen species increased significantly with the offspring’s volume throughout ontogeny. Moreover, we found evidence of at least two key events during ontogeny. First, the depletion of antioxidants, the increase of reactive oxygen species, and the development of a complete digestive system appear to trigger feeding on the mothers’s pyloric caeca. Second, another oxidative imbalance appears to be associated with the release of the brooded juveniles to the environment. Therefore, oxidative balance and energetic variances may be associated with development of autonomous feeding and juvenile release in D. verrucosus. Fil: Fraysse, Cintia Pamela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Maimonides. Centro de Ciencias Naturales, Ambientales y Antropologicas.; Argentina Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Becker, Yamila Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Calcagno, ... Article in Journal/Newspaper Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Southern Ocean Austral Argentina Sladen ENVELOPE(-45.281,-45.281,-60.675,-60.675) The Biological Bulletin 239 1 1 12 |
institution |
Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
NAMUNCURÁ MARINE PROTECTED AREA ENERGY DENSITY REACTIVE OXYGEN SPECIES TOTAL ANTIOXIDANT CAPACITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
NAMUNCURÁ MARINE PROTECTED AREA ENERGY DENSITY REACTIVE OXYGEN SPECIES TOTAL ANTIOXIDANT CAPACITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Fraysse, Cintia Pamela Boy, Claudia Clementina Becker, Yamila Anabella Calcagno, Javier Ángel Pérez, Soledad Analía Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
topic_facet |
NAMUNCURÁ MARINE PROTECTED AREA ENERGY DENSITY REACTIVE OXYGEN SPECIES TOTAL ANTIOXIDANT CAPACITY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Diplopteraster verrucosus is a sea star that incubates its offspring in nidamental chambers. The offspring rely exclusively on maternally provided nutrition. The retention of the embryonic stages allows the allocation of nutritional supplies fromthe female to the brooded juveniles during the brooding period. Themain objectives of this study are, first, to quantify the reproductive investment of D. verrucosus and, second, to describe the morphology, energetics, and oxidative metabolism throughout early ontogenetic stages. A skewed sex ratio of 2:1 females:males was found, and 17 of 39 females were brooding. Both brooding and non-brooding females showed higher energy density and total antioxidant capacity in their gonads than males. We identified three cohorts of offspring being retained within the female body simultaneously. Energy density and reactive oxygen species increased significantly with the offspring’s volume throughout ontogeny. Moreover, we found evidence of at least two key events during ontogeny. First, the depletion of antioxidants, the increase of reactive oxygen species, and the development of a complete digestive system appear to trigger feeding on the mothers’s pyloric caeca. Second, another oxidative imbalance appears to be associated with the release of the brooded juveniles to the environment. Therefore, oxidative balance and energetic variances may be associated with development of autonomous feeding and juvenile release in D. verrucosus. Fil: Fraysse, Cintia Pamela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Maimonides. Centro de Ciencias Naturales, Ambientales y Antropologicas.; Argentina Fil: Boy, Claudia Clementina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Becker, Yamila Anabella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Calcagno, ... |
format |
Article in Journal/Newspaper |
author |
Fraysse, Cintia Pamela Boy, Claudia Clementina Becker, Yamila Anabella Calcagno, Javier Ángel Pérez, Soledad Analía |
author_facet |
Fraysse, Cintia Pamela Boy, Claudia Clementina Becker, Yamila Anabella Calcagno, Javier Ángel Pérez, Soledad Analía |
author_sort |
Fraysse, Cintia Pamela |
title |
Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
title_short |
Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
title_full |
Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
title_fullStr |
Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
title_full_unstemmed |
Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
title_sort |
brooding in the southern ocean: the case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882) |
publisher |
Marine Biological Laboratory |
url |
http://hdl.handle.net/11336/127395 |
long_lat |
ENVELOPE(-45.281,-45.281,-60.675,-60.675) |
geographic |
Southern Ocean Austral Argentina Sladen |
geographic_facet |
Southern Ocean Austral Argentina Sladen |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.journals.uchicago.edu/doi/10.1086/709664 info:eu-repo/semantics/altIdentifier/doi/10.1086/709664 http://hdl.handle.net/11336/127395 Fraysse, Cintia Pamela; Boy, Claudia Clementina; Becker, Yamila Anabella; Calcagno, Javier Ángel; Pérez, Soledad Analía; Brooding in the southern ocean: The case of the pterasterid sea star diplopteraster verrucosus (sladen, 1882); Marine Biological Laboratory; Biological Bulletin; 239; 1; 8-2020; 1-12 0006-3185 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/10.1086/709664 |
container_title |
The Biological Bulletin |
container_volume |
239 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
12 |
_version_ |
1779320472637276160 |