Enhancement of the benthic communities around an isolated island in the Antarctic Ocean
Insular marine biotas are often richer in faunal diversity than those from the open sea in the same geographical region. The existence of particular island effects were tested under polar conditions by comparing infaunal benthic assemblages on Peter I Island with those of similar latitudes in the op...
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ftcsic:oai:digital.csic.es:10261/319521 2024-02-11T09:57:18+01:00 Enhancement of the benthic communities around an isolated island in the Antarctic Ocean Saiz-Salinas, José Ignacio Anadón, Nuria Cristobo, Javier García-Álvarez, Óscar García-Castrillo, G. López, E. Palacín, C. Troncoso, Jesús Ramos, Ana Antarctic Ocean 2013 http://hdl.handle.net/10508/8501 http://hdl.handle.net/10261/319521 https://doi.org/10.1007/s13131-013-0321-5 unknown Centro Oceanográfico de Gijón Acta Oecologica Sinica, 32(6). 2013: 47-55 0253-505X http://hdl.handle.net/10508/8501 http://hdl.handle.net/10261/319521 doi:10.1007/s13131-013-0321-5 4592 none Medio Marino Centro Oceanográfico de Gijón research article 2013 ftcsic https://doi.org/10.1007/s13131-013-0321-5 2024-01-16T11:45:36Z Insular marine biotas are often richer in faunal diversity than those from the open sea in the same geographical region. The existence of particular island effects were tested under polar conditions by comparing infaunal benthic assemblages on Peter I Island with those of similar latitudes in the open ocean at the Bellingshausen Sea and also from the coast of the Antarctic Peninsula. Sampling was carried out aboard the R/V Hespérides during the expedition named BENTART-2003 from 24 January to 3 March 2003. Benthic samples were collected at 18 stations ranging from 90 to 2 044 m depth, using an USNEL-type box corer (BC) dredge. Representatives of 32 higher taxa of invertebrates were found. Univariate and multivariate analyses revealed various patterns in the data. First, significant differences in polychaete abundance were detected between the stations located in the open sea and the remaining sites (island plus mainland sites). Bivalve abundances were also distinct between island and mainland sampling sites. Sediment columns taken from the island seafloor exhibited the highest rate of bioturbation by the infauna. These findings confirm the model that islands develop distinct assemblages characterized by the enhancement of the benthic communities even in cold waters. Several abiotic factors were measured simultaneously at the seafloor and along the water column to investigate faunal distribution patterns. Significant correlations were found between the benthic assemblages and a combination of two environmental variables: “island effect” (measured as a categorical variable) and the redox state of sediments. Richer andmore complex benthic assemblages were found in Peter I Island’s sea bottom, whereas the more depauperate bottoms remained in the open sea. Sí Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island ENVELOPE(-90.583,-90.583,-68.783,-68.783) The Antarctic Acta Oceanologica Sinica 32 6 47 55 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Medio Marino Centro Oceanográfico de Gijón |
spellingShingle |
Medio Marino Centro Oceanográfico de Gijón Saiz-Salinas, José Ignacio Anadón, Nuria Cristobo, Javier García-Álvarez, Óscar García-Castrillo, G. López, E. Palacín, C. Troncoso, Jesús Ramos, Ana Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
topic_facet |
Medio Marino Centro Oceanográfico de Gijón |
description |
Insular marine biotas are often richer in faunal diversity than those from the open sea in the same geographical region. The existence of particular island effects were tested under polar conditions by comparing infaunal benthic assemblages on Peter I Island with those of similar latitudes in the open ocean at the Bellingshausen Sea and also from the coast of the Antarctic Peninsula. Sampling was carried out aboard the R/V Hespérides during the expedition named BENTART-2003 from 24 January to 3 March 2003. Benthic samples were collected at 18 stations ranging from 90 to 2 044 m depth, using an USNEL-type box corer (BC) dredge. Representatives of 32 higher taxa of invertebrates were found. Univariate and multivariate analyses revealed various patterns in the data. First, significant differences in polychaete abundance were detected between the stations located in the open sea and the remaining sites (island plus mainland sites). Bivalve abundances were also distinct between island and mainland sampling sites. Sediment columns taken from the island seafloor exhibited the highest rate of bioturbation by the infauna. These findings confirm the model that islands develop distinct assemblages characterized by the enhancement of the benthic communities even in cold waters. Several abiotic factors were measured simultaneously at the seafloor and along the water column to investigate faunal distribution patterns. Significant correlations were found between the benthic assemblages and a combination of two environmental variables: “island effect” (measured as a categorical variable) and the redox state of sediments. Richer andmore complex benthic assemblages were found in Peter I Island’s sea bottom, whereas the more depauperate bottoms remained in the open sea. Sí |
format |
Article in Journal/Newspaper |
author |
Saiz-Salinas, José Ignacio Anadón, Nuria Cristobo, Javier García-Álvarez, Óscar García-Castrillo, G. López, E. Palacín, C. Troncoso, Jesús Ramos, Ana |
author_facet |
Saiz-Salinas, José Ignacio Anadón, Nuria Cristobo, Javier García-Álvarez, Óscar García-Castrillo, G. López, E. Palacín, C. Troncoso, Jesús Ramos, Ana |
author_sort |
Saiz-Salinas, José Ignacio |
title |
Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
title_short |
Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
title_full |
Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
title_fullStr |
Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
title_full_unstemmed |
Enhancement of the benthic communities around an isolated island in the Antarctic Ocean |
title_sort |
enhancement of the benthic communities around an isolated island in the antarctic ocean |
publishDate |
2013 |
url |
http://hdl.handle.net/10508/8501 http://hdl.handle.net/10261/319521 https://doi.org/10.1007/s13131-013-0321-5 |
op_coverage |
Antarctic Ocean |
long_lat |
ENVELOPE(-90.583,-90.583,-68.783,-68.783) |
geographic |
Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea Peter I Island |
op_relation |
Centro Oceanográfico de Gijón Acta Oecologica Sinica, 32(6). 2013: 47-55 0253-505X http://hdl.handle.net/10508/8501 http://hdl.handle.net/10261/319521 doi:10.1007/s13131-013-0321-5 4592 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s13131-013-0321-5 |
container_title |
Acta Oceanologica Sinica |
container_volume |
32 |
container_issue |
6 |
container_start_page |
47 |
op_container_end_page |
55 |
_version_ |
1790609591996776448 |