Circeaster americanus
Circeaster americanus (A.H. Clark 1916) Figure 7 A–C Circeaster americanus is a widely occurring species throughout the western North Atlantic, with occurrence recorded throughout the tropical Atlantic to the mid-Atlantic Ridge (Mah 2015). Most Circeaster diversity is known primarily in the Indo-Pac...
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ftzenodo:oai:zenodo.org:3803731 2023-05-15T17:32:06+02:00 Circeaster americanus Mah, Christopher L. 2020-04-20 https://zenodo.org/record/3803731 https://doi.org/10.5281/zenodo.3803731 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AE8786FFACD552FF40218EFCBA5F84 doi:10.11646/zootaxa.4766.2.1 http://zenodo.org/record/3764018 http://publication.plazi.org/id/FF97FFFEFFBDD540FFD72117FFDE5D28 doi:10.5281/zenodo.3764032 http://zoobank.org/urn:lsid:zoobank.org:pub:B47DC09C-181A-4DFE-B415-770AFFC11BD3 doi:10.5281/zenodo.3803730 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3803731 https://doi.org/10.5281/zenodo.3803731 oai:zenodo.org:3803731 info:eu-repo/semantics/openAccess New species, occurrence records and observations of predation by deep-sea Asteroidea (Echinodermata) from the North Atlantic by NOAA ship Okeanos Explorer, pp. 201-260 in Zootaxa 4766(2) 218-219 Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Circeaster Circeaster americanus info:eu-repo/semantics/other publication-taxonomictreatment 2020 ftzenodo https://doi.org/10.5281/zenodo.380373110.11646/zootaxa.4766.2.110.5281/zenodo.376403210.5281/zenodo.3803730 2023-03-10T18:22:45Z Circeaster americanus (A.H. Clark 1916) Figure 7 A–C Circeaster americanus is a widely occurring species throughout the western North Atlantic, with occurrence recorded throughout the tropical Atlantic to the mid-Atlantic Ridge (Mah 2015). Most Circeaster diversity is known primarily in the Indo-Pacific where it is represented by eight species. Two of the most closely related species to C. americanus, Circeaster pullus Mah 2006 and Circaster sandrae Mah 2006 occur in the north and south Pacific, respectively. Morphological variation was observed in this species across its range. The Caribbean form (Fig. 7A, 721 m) showed slender arms and demonstrated a closer resemblance to the Pacific species, such as C. pullus and C. sandrae. In contrast, two individuals from the Gulf of Mexico (694-1133 m) displayed massive and strongly developed marginal plate series with thicker and more broadly triangular arms. Feeding Observations This species was observed feeding on three occasions. Observations showed predation on two different types of octocoral species. One observation (721 m) showed an individual with an arm upturned adjacent to a denuded Chrysogorgia colony. The other two observations (693 m and 1133 m) showed an individual slightly askew on a rock with a denuded isidid stalk emerging from below its oral region with the deeper observation (1133 m) showing an individual perched upon the upper branches of a denuded isidid coral skeleton. Circeaster americanus has previously been reported feeding on a fallen soft coral colony in the genus Paragorgia from Manning Seamount in the North Atlantic (Mah 2015). The diversity of prey items suggests this species displays broad variation with regard to its feeding preferences. Alternatively, it is possible that different cryptic lineages may have different feeding preferences but no data is available for the population phylogeography of this species. Occurrence Tropical Atlantic, Florida, Louisiana, Gulf of Mexico, North Carolina and the Caribbean, including Columbia, the ... Other/Unknown Material North Atlantic Zenodo Mid-Atlantic Ridge Pacific |
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Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Circeaster Circeaster americanus |
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Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Circeaster Circeaster americanus Mah, Christopher L. Circeaster americanus |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Asteroidea Valvatida Goniasteridae Circeaster Circeaster americanus |
description |
Circeaster americanus (A.H. Clark 1916) Figure 7 A–C Circeaster americanus is a widely occurring species throughout the western North Atlantic, with occurrence recorded throughout the tropical Atlantic to the mid-Atlantic Ridge (Mah 2015). Most Circeaster diversity is known primarily in the Indo-Pacific where it is represented by eight species. Two of the most closely related species to C. americanus, Circeaster pullus Mah 2006 and Circaster sandrae Mah 2006 occur in the north and south Pacific, respectively. Morphological variation was observed in this species across its range. The Caribbean form (Fig. 7A, 721 m) showed slender arms and demonstrated a closer resemblance to the Pacific species, such as C. pullus and C. sandrae. In contrast, two individuals from the Gulf of Mexico (694-1133 m) displayed massive and strongly developed marginal plate series with thicker and more broadly triangular arms. Feeding Observations This species was observed feeding on three occasions. Observations showed predation on two different types of octocoral species. One observation (721 m) showed an individual with an arm upturned adjacent to a denuded Chrysogorgia colony. The other two observations (693 m and 1133 m) showed an individual slightly askew on a rock with a denuded isidid stalk emerging from below its oral region with the deeper observation (1133 m) showing an individual perched upon the upper branches of a denuded isidid coral skeleton. Circeaster americanus has previously been reported feeding on a fallen soft coral colony in the genus Paragorgia from Manning Seamount in the North Atlantic (Mah 2015). The diversity of prey items suggests this species displays broad variation with regard to its feeding preferences. Alternatively, it is possible that different cryptic lineages may have different feeding preferences but no data is available for the population phylogeography of this species. Occurrence Tropical Atlantic, Florida, Louisiana, Gulf of Mexico, North Carolina and the Caribbean, including Columbia, the ... |
format |
Other/Unknown Material |
author |
Mah, Christopher L. |
author_facet |
Mah, Christopher L. |
author_sort |
Mah, Christopher L. |
title |
Circeaster americanus |
title_short |
Circeaster americanus |
title_full |
Circeaster americanus |
title_fullStr |
Circeaster americanus |
title_full_unstemmed |
Circeaster americanus |
title_sort |
circeaster americanus |
publishDate |
2020 |
url |
https://zenodo.org/record/3803731 https://doi.org/10.5281/zenodo.3803731 |
geographic |
Mid-Atlantic Ridge Pacific |
geographic_facet |
Mid-Atlantic Ridge Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
New species, occurrence records and observations of predation by deep-sea Asteroidea (Echinodermata) from the North Atlantic by NOAA ship Okeanos Explorer, pp. 201-260 in Zootaxa 4766(2) 218-219 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03AE8786FFACD552FF40218EFCBA5F84 doi:10.11646/zootaxa.4766.2.1 http://zenodo.org/record/3764018 http://publication.plazi.org/id/FF97FFFEFFBDD540FFD72117FFDE5D28 doi:10.5281/zenodo.3764032 http://zoobank.org/urn:lsid:zoobank.org:pub:B47DC09C-181A-4DFE-B415-770AFFC11BD3 doi:10.5281/zenodo.3803730 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3803731 https://doi.org/10.5281/zenodo.3803731 oai:zenodo.org:3803731 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.380373110.11646/zootaxa.4766.2.110.5281/zenodo.376403210.5281/zenodo.3803730 |
_version_ |
1766130040776425472 |