SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean
11 figures, 1978.—Two recent intertidal collecting expeditions and existing museum collections have added much to knowledge of the Ascension Island echinoderm fauna. Twenty-five species are now known from Ascension; eight are new records. One new species, Holothuria (Halodeima) manningi, and one new...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8611 http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.645.8611 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.645.8611 2023-05-15T18:21:09+02:00 SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean David L. Pawson David Leo The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8611 http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8611 http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf Bibliography p text ftciteseerx 2016-01-08T16:10:14Z 11 figures, 1978.—Two recent intertidal collecting expeditions and existing museum collections have added much to knowledge of the Ascension Island echinoderm fauna. Twenty-five species are now known from Ascension; eight are new records. One new species, Holothuria (Halodeima) manningi, and one new subspecies, Echinometra lucunter polypora, are described. Diadema ascensionis Mortensen is regarded as a subspecies of D. antillarum Philippi, and Pseudo-boletia atlantica H. L. Clark is regarded as a subspecies of P. maculata Troschel. The echinoderm fauna of Ascension Island includes 8 amphi-Atlantic species, 3 western Atlantic species, 4 eastern Atlantic species, 5 circumtropical species, 4 species shared only with St. Helena, and 1 endemic species. There are in addi-tion three endemic subspecies. Twelve species are shared with St. Helena, and both islands are closely similar in terms of numbers and relationships of their faunal components. Colonization of both islands by planktonic larval stages is suggested. Dendrochirotid holothurians, which lack such larval stages, are not represented at either St. Helena or Ascension. The structure of the Ascension fauna seems to have been determined by vagaries of ocean surface and sub-surface currents. In contrast, Bermuda, which sits astride the Gulf Stream, has a fauna that is entirely typical of the West Indian region to the south. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded Text South Atlantic Ocean Unknown Indian St. Helena ENVELOPE(8.575,8.575,63.621,63.621) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
Bibliography p |
spellingShingle |
Bibliography p David L. Pawson David Leo SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
topic_facet |
Bibliography p |
description |
11 figures, 1978.—Two recent intertidal collecting expeditions and existing museum collections have added much to knowledge of the Ascension Island echinoderm fauna. Twenty-five species are now known from Ascension; eight are new records. One new species, Holothuria (Halodeima) manningi, and one new subspecies, Echinometra lucunter polypora, are described. Diadema ascensionis Mortensen is regarded as a subspecies of D. antillarum Philippi, and Pseudo-boletia atlantica H. L. Clark is regarded as a subspecies of P. maculata Troschel. The echinoderm fauna of Ascension Island includes 8 amphi-Atlantic species, 3 western Atlantic species, 4 eastern Atlantic species, 5 circumtropical species, 4 species shared only with St. Helena, and 1 endemic species. There are in addi-tion three endemic subspecies. Twelve species are shared with St. Helena, and both islands are closely similar in terms of numbers and relationships of their faunal components. Colonization of both islands by planktonic larval stages is suggested. Dendrochirotid holothurians, which lack such larval stages, are not represented at either St. Helena or Ascension. The structure of the Ascension fauna seems to have been determined by vagaries of ocean surface and sub-surface currents. In contrast, Bermuda, which sits astride the Gulf Stream, has a fauna that is entirely typical of the West Indian region to the south. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
David L. Pawson David Leo |
author_facet |
David L. Pawson David Leo |
author_sort |
David L. Pawson |
title |
SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
title_short |
SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
title_full |
SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
title_fullStr |
SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
title_full_unstemmed |
SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 2 The Echinoderm Fauna of Ascension Island, South Atlantic Ocean |
title_sort |
smithsonian contributions to the marine sciences • number 2 the echinoderm fauna of ascension island, south atlantic ocean |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8611 http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf |
long_lat |
ENVELOPE(8.575,8.575,63.621,63.621) |
geographic |
Indian St. Helena |
geographic_facet |
Indian St. Helena |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8611 http://www.sil.si.edu/smithsoniancontributions/MarineSciences/pdf_hi/SCMS-0002.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766200280202870784 |