Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean
Marine invertebrates can display several reproductive strategies, from external reproduction to parental care. Internal brooding is particularly relevant in harsh conditions, like Antarctic/sub-Antarctic waters and deep-sea, since it maximizes the survival of the young. Actinostola crassicornis is a...
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ftconicet:oai:ri.conicet.gov.ar:11336/133350 2023-10-09T21:47:15+02:00 Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean Lauretta, Daniel Marcelo Vidos, Camila Martinez, Mariano Ignacio Penchaszadeh, Pablo Enrique application/pdf http://hdl.handle.net/11336/133350 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-020-02713-3 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02713-3 http://hdl.handle.net/11336/133350 Lauretta, Daniel Marcelo; Vidos, Camila; Martinez, Mariano Ignacio; Penchaszadeh, Pablo Enrique; Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean; Springer; Polar Biology; 43; 9; 9-2020; 1353-1361 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ACTINOSTOLIDAE ARGENTINA REPRODUCTION SUB-ANTARCTIC WATERS 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/s00300-020-02713-3 2023-09-24T18:50:36Z Marine invertebrates can display several reproductive strategies, from external reproduction to parental care. Internal brooding is particularly relevant in harsh conditions, like Antarctic/sub-Antarctic waters and deep-sea, since it maximizes the survival of the young. Actinostola crassicornis is an abundant and widely distributed sea anemone from the southwestern Atlantic Ocean. It can be found all along the Argentinean sea down to 1200 m depth, usually in large numbers. It is a unique species in the area, since it is a large white brooding sea anemone. We studied 75 specimens collected by the O/V Walther Herwig and the O/V Puerto Deseado all along its distribution, from about 60 m to 800 m depth, in different seasons of the year. All the specimens were sexed, and the presence of free oocytes and juveniles inside the coelenteron were assessed. Large oocytes (over 500 μm) and juveniles were found in samples from most of the sampled months. We found a larger number of female specimens, and most of the brooding specimens were female. No early developmental stages were found smaller than a sea anemone with about 12 tentacles. We conclude that A. crassicornis reproduces continuously throughout the year and that although most of the juveniles were found in females, male specimens can breed. Brooding has great benefits in terms of protecting the offspring, since predation upon the juveniles is prevented, but dispersal of the offspring is low, shown by the aggregated distribution of the species. Fil: Lauretta, Daniel Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Vidos, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Martinez, Mariano Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. ... Article in Journal/Newspaper Antarc* Antarctic Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Argentina Argentino Polar Biology 43 9 1353 1361 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ACTINOSTOLIDAE ARGENTINA REPRODUCTION SUB-ANTARCTIC WATERS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ACTINOSTOLIDAE ARGENTINA REPRODUCTION SUB-ANTARCTIC WATERS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Lauretta, Daniel Marcelo Vidos, Camila Martinez, Mariano Ignacio Penchaszadeh, Pablo Enrique Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
topic_facet |
ACTINOSTOLIDAE ARGENTINA REPRODUCTION SUB-ANTARCTIC WATERS https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Marine invertebrates can display several reproductive strategies, from external reproduction to parental care. Internal brooding is particularly relevant in harsh conditions, like Antarctic/sub-Antarctic waters and deep-sea, since it maximizes the survival of the young. Actinostola crassicornis is an abundant and widely distributed sea anemone from the southwestern Atlantic Ocean. It can be found all along the Argentinean sea down to 1200 m depth, usually in large numbers. It is a unique species in the area, since it is a large white brooding sea anemone. We studied 75 specimens collected by the O/V Walther Herwig and the O/V Puerto Deseado all along its distribution, from about 60 m to 800 m depth, in different seasons of the year. All the specimens were sexed, and the presence of free oocytes and juveniles inside the coelenteron were assessed. Large oocytes (over 500 μm) and juveniles were found in samples from most of the sampled months. We found a larger number of female specimens, and most of the brooding specimens were female. No early developmental stages were found smaller than a sea anemone with about 12 tentacles. We conclude that A. crassicornis reproduces continuously throughout the year and that although most of the juveniles were found in females, male specimens can breed. Brooding has great benefits in terms of protecting the offspring, since predation upon the juveniles is prevented, but dispersal of the offspring is low, shown by the aggregated distribution of the species. Fil: Lauretta, Daniel Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Vidos, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Martinez, Mariano Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. ... |
format |
Article in Journal/Newspaper |
author |
Lauretta, Daniel Marcelo Vidos, Camila Martinez, Mariano Ignacio Penchaszadeh, Pablo Enrique |
author_facet |
Lauretta, Daniel Marcelo Vidos, Camila Martinez, Mariano Ignacio Penchaszadeh, Pablo Enrique |
author_sort |
Lauretta, Daniel Marcelo |
title |
Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
title_short |
Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
title_full |
Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
title_fullStr |
Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
title_full_unstemmed |
Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean |
title_sort |
brooding in the deep-sea sea anemone actinostola crassicornis (hertwig, 1882) (cnidaria: anthozoa: actiniaria) from the southwestern atlantic ocean |
publisher |
Springer |
url |
http://hdl.handle.net/11336/133350 |
geographic |
Antarctic Argentina Argentino |
geographic_facet |
Antarctic Argentina Argentino |
genre |
Antarc* Antarctic Polar Biology |
genre_facet |
Antarc* Antarctic Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-020-02713-3 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02713-3 http://hdl.handle.net/11336/133350 Lauretta, Daniel Marcelo; Vidos, Camila; Martinez, Mariano Ignacio; Penchaszadeh, Pablo Enrique; Brooding in the deep-sea sea anemone Actinostola crassicornis (Hertwig, 1882) (Cnidaria: Anthozoa: Actiniaria) from the southwestern Atlantic Ocean; Springer; Polar Biology; 43; 9; 9-2020; 1353-1361 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-020-02713-3 |
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Polar Biology |
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43 |
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9 |
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1353 |
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1361 |
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1779310246745866240 |