Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica)
During the research program BENTART 95, carried out from 16 January to 4 February 1995 on board RV Hesperides, a semi-quantitative Agassiz trawl and quantitative Van-Veen grabs were used at 31 subtidal stations between 40 and 850 m depth around Livingston Island, at Deception Island and in the Brans...
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ftieo:oai:repositorio.ieo.es:10508/10079 2023-05-15T13:41:24+02:00 Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) Arnaud, P. (Patrick) Troncoso, J.S. (Jesús) Ramos, A. (Ana) Antarctic Ocean Atlantic Ocean South Atlantic Southwest Atlantic http://hdl.handle.net/10508/10079 https://doi.org/10.1007/s003000000183 eng eng Centro Oceanográfico de Vigo http://link.springer.com/article/10.1007%2Fs003000000183 0722-4060 http://hdl.handle.net/10508/10079 Polar Biology, 24(2). 2001: 105-112 doi:10.1007/s003000000183 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND article ftieo https://doi.org/10.1007/s003000000183 2022-07-26T23:48:52Z During the research program BENTART 95, carried out from 16 January to 4 February 1995 on board RV Hesperides, a semi-quantitative Agassiz trawl and quantitative Van-Veen grabs were used at 31 subtidal stations between 40 and 850 m depth around Livingston Island, at Deception Island and in the Bransfield Strait. These data were used to search for and analyse the malacological assemblages. Among the molluscs sampled were 1,786 individuals belonging to 70 species of Solenogastres, Gastropoda Prosobranchia and Opisthobranchia, Scaphopoda and Bivalvia. The values of Shannon-Wiener diversity index ranged between 0.00 (one specimen) and 3.95, while Pielou's evenness index varied between 0.0 and 1.00. The bivalve Thyasira cf. dearborni was the most abundant species (227 specimens). Species richness varied from 1 to 19 species. Diversity showed great variations at different stations. The clustering analysis applying the Bray-Curtis coefficient allowed species classification according to constancy and fidelity, and distinguished four groups of stations: one that gathers clearly the stations of the inner bay of Deception Island, excepting station 1, and the other three fitting the remaining stations, located north and south of Livingston Island and in the Bransfield Strait, and correlated with environmental factors (granulometric composition, organic matter and carbonates). Versión del editor 1,4450 Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctica Bransfield Strait Deception Island Livingston Island Polar Biology South Shetland Islands Instituto Español de Oceanografía: e-IEO Antarctic Antarctic Ocean Bransfield Strait Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) Inner Bay ENVELOPE(-37.967,-37.967,-54.017,-54.017) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) South Shetland Islands Van Veen ENVELOPE(161.900,161.900,-71.583,-71.583) Polar Biology 24 2 105 112 |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
During the research program BENTART 95, carried out from 16 January to 4 February 1995 on board RV Hesperides, a semi-quantitative Agassiz trawl and quantitative Van-Veen grabs were used at 31 subtidal stations between 40 and 850 m depth around Livingston Island, at Deception Island and in the Bransfield Strait. These data were used to search for and analyse the malacological assemblages. Among the molluscs sampled were 1,786 individuals belonging to 70 species of Solenogastres, Gastropoda Prosobranchia and Opisthobranchia, Scaphopoda and Bivalvia. The values of Shannon-Wiener diversity index ranged between 0.00 (one specimen) and 3.95, while Pielou's evenness index varied between 0.0 and 1.00. The bivalve Thyasira cf. dearborni was the most abundant species (227 specimens). Species richness varied from 1 to 19 species. Diversity showed great variations at different stations. The clustering analysis applying the Bray-Curtis coefficient allowed species classification according to constancy and fidelity, and distinguished four groups of stations: one that gathers clearly the stations of the inner bay of Deception Island, excepting station 1, and the other three fitting the remaining stations, located north and south of Livingston Island and in the Bransfield Strait, and correlated with environmental factors (granulometric composition, organic matter and carbonates). Versión del editor 1,4450 |
format |
Article in Journal/Newspaper |
author |
Arnaud, P. (Patrick) Troncoso, J.S. (Jesús) Ramos, A. (Ana) |
spellingShingle |
Arnaud, P. (Patrick) Troncoso, J.S. (Jesús) Ramos, A. (Ana) Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
author_facet |
Arnaud, P. (Patrick) Troncoso, J.S. (Jesús) Ramos, A. (Ana) |
author_sort |
Arnaud, P. (Patrick) |
title |
Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
title_short |
Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
title_full |
Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
title_fullStr |
Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
title_full_unstemmed |
Species diversity and assemblages of macrobenthic Mollusca from the South Shetland Islands and Bransfield Strait (Antarctica) |
title_sort |
species diversity and assemblages of macrobenthic mollusca from the south shetland islands and bransfield strait (antarctica) |
publisher |
Centro Oceanográfico de Vigo |
url |
http://hdl.handle.net/10508/10079 https://doi.org/10.1007/s003000000183 |
op_coverage |
Antarctic Ocean Atlantic Ocean South Atlantic Southwest Atlantic |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-37.967,-37.967,-54.017,-54.017) ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(161.900,161.900,-71.583,-71.583) |
geographic |
Antarctic Antarctic Ocean Bransfield Strait Bray Deception Island Inner Bay Livingston Island South Shetland Islands Van Veen |
geographic_facet |
Antarctic Antarctic Ocean Bransfield Strait Bray Deception Island Inner Bay Livingston Island South Shetland Islands Van Veen |
genre |
Antarc* Antarctic Antarctic Ocean Antarctica Bransfield Strait Deception Island Livingston Island Polar Biology South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctica Bransfield Strait Deception Island Livingston Island Polar Biology South Shetland Islands |
op_relation |
http://link.springer.com/article/10.1007%2Fs003000000183 0722-4060 http://hdl.handle.net/10508/10079 Polar Biology, 24(2). 2001: 105-112 doi:10.1007/s003000000183 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1007/s003000000183 |
container_title |
Polar Biology |
container_volume |
24 |
container_issue |
2 |
container_start_page |
105 |
op_container_end_page |
112 |
_version_ |
1766150465169391616 |