Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution

Benthic megafaunal and demersal fish assemblages were sampled in three areas off Chile during the German-Chilean Expedition PUCK (SO-156) onboard the R/V Sonne from March to May 2001, at depths ranging from 120 to 2201 m. These samples, taken with an Agassiz trawl, are among the deepest ever taken i...

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Autores: Quiroga-Jamett, Eduardo, Sellanes-López, Rogelio, Dieter, Gerdes, Gallardo-Gallardo, Víctor, Hebbeln, Dierk, Wolf, Amtz
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/198016
Acceso en línea:https://hdl.handle.net/10533/198016
Access Level:acceso abierto
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dc.title.none.fl_str_mv Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
dc.title.journal.none.fl_str_mv DEEP-SEA RESEARCH. PART 2. TOPICAL STUDIES IN OCEANOGRAPHY
dc.title.journalabbreviation.none.fl_str_mv Deep-Sea Res. Part II-Top. Stud. Oceanogr.
title Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
spellingShingle Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
Quiroga-Jamett, Eduardo
title_short Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
title_full Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
title_fullStr Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
title_full_unstemmed Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
title_sort Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution
dc.creator.none.fl_str_mv Quiroga-Jamett, Eduardo
Sellanes-López, Rogelio
Dieter, Gerdes
Gallardo-Gallardo, Víctor
Hebbeln, Dierk
Wolf, Amtz
author Quiroga-Jamett, Eduardo
author_facet Quiroga-Jamett, Eduardo
Sellanes-López, Rogelio
Dieter, Gerdes
Gallardo-Gallardo, Víctor
Hebbeln, Dierk
Wolf, Amtz
author_role author
author2 Sellanes-López, Rogelio
Dieter, Gerdes
Gallardo-Gallardo, Víctor
Hebbeln, Dierk
Wolf, Amtz
author2_role author
author
author
author
author
description Benthic megafaunal and demersal fish assemblages were sampled in three areas off Chile during the German-Chilean Expedition PUCK (SO-156) onboard the R/V Sonne from March to May 2001, at depths ranging from 120 to 2201 m. These samples, taken with an Agassiz trawl, are among the deepest ever taken in Chilean waters. A total of 147 species were recorded, mainly decapod crustaceans (Galatheidae, Pandalidae, Crangonidae), gastropods (Trochidae, Muricidae, Volutidae), ophiuroids (Asteronychidae, Gorgonocephalidae, Ophiolepididae, Ophiurinae), asteroids (Pterasteridae, Solasteridae, Goniopectinidae), polychaetes (Onuphidae, Aphroditidae, Maldanidae), and demersal fish (Macrouridae, lpnopidae, Squalidae). Species richness and rarefaction analyses suggest that the fauna was undersampled. From the 147 species identified in this study, 36 species (24.5%) occurred only once and another 24 species occurred only twice (16.3%). Depth and dissolved oxygen levels were found to be the main factors influencing megafaunal changes along the continental shelf and in bathyal areas, as indicated by principal component and Pearson's correlation analyses. Some species appear to be limited to distinct areas in the upper and lower bathyal zones, whereas other species have a wider range, extending from the continental shelf to lower bathyal zones. Biogeographic relations exist with the Pacific, South Atlantic, and Southern Oceans, but the latter seem to be weaker than would be expected considering the connection by Antarctic intermediate water. (C) 2008 Published by Elsevier Ltd.
publishDate 2009
dc.date.issued.none.fl_str_mv 2009
dc.date.accessioned.none.fl_str_mv 2017-04-27T18:53:59Z
2022-07-07T02:27:59Z
dc.date.available.none.fl_str_mv 2017-04-27T18:53:59Z
2022-07-07T02:27:59Z
dc.type.none.fl_str_mv Articulo
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status_str publishedVersion
dc.identifier.eissn.none.fl_str_mv 1879-0100
dc.identifier.folio.none.fl_str_mv D04I1111
D04I1111
dc.identifier.idwos.none.fl_str_mv WOS:000268272100008
dc.identifier.isi.none.fl_str_mv WOS:000268272100008
dc.identifier.issn.none.fl_str_mv 0967-0645
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/198016
identifier_str_mv 1879-0100
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dc.language.*.fl_str_mv eng
language eng
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instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1016/j.dsr2.2008.09.010
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondef/D04I1111
dc.relation.set.none.fl_str_mv info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relation.uri.none.fl_str_mv https://doi.org/10.1016/j.dsr2.2008.09.010
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dc.publisher.none.fl_str_mv PERGAMON-ELSEVIER SCIENCE LTD
publisher.none.fl_str_mv PERGAMON-ELSEVIER SCIENCE LTD
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spelling Wolf, AmtzHebbeln, DierkGallardo-Gallardo, VíctorDieter, GerdesSellanes-López, RogelioQuiroga-Jamett, Eduardo200910.1016/j.dsr2.2008.09.010https://hdl.handle.net/10533/198016http://purl.org/coar/access_right/c_abf2Benthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distribution10721061USAOXFORDQuiroga-Jamett, EduardoSellanes-López, RogelioDieter, GerdesGallardo-Gallardo, VíctorHebbeln, DierkWolf, Amtz2017-04-27T18:53:59Z2022-07-07T02:27:59Z2017-04-27T18:53:59Z2022-07-07T02:27:59Z2009Benthic megafaunal and demersal fish assemblages were sampled in three areas off Chile during the German-Chilean Expedition PUCK (SO-156) onboard the R/V Sonne from March to May 2001, at depths ranging from 120 to 2201 m. These samples, taken with an Agassiz trawl, are among the deepest ever taken in Chilean waters. A total of 147 species were recorded, mainly decapod crustaceans (Galatheidae, Pandalidae, Crangonidae), gastropods (Trochidae, Muricidae, Volutidae), ophiuroids (Asteronychidae, Gorgonocephalidae, Ophiolepididae, Ophiurinae), asteroids (Pterasteridae, Solasteridae, Goniopectinidae), polychaetes (Onuphidae, Aphroditidae, Maldanidae), and demersal fish (Macrouridae, lpnopidae, Squalidae). Species richness and rarefaction analyses suggest that the fauna was undersampled. From the 147 species identified in this study, 36 species (24.5%) occurred only once and another 24 species occurred only twice (16.3%). Depth and dissolved oxygen levels were found to be the main factors influencing megafaunal changes along the continental shelf and in bathyal areas, as indicated by principal component and Pearson's correlation analyses. Some species appear to be limited to distinct areas in the upper and lower bathyal zones, whereas other species have a wider range, extending from the continental shelf to lower bathyal zones. Biogeographic relations exist with the Pacific, South Atlantic, and Southern Oceans, but the latter seem to be weaker than would be expected considering the connection by Antarctic intermediate water. (C) 2008 Published by Elsevier Ltd.We thank all participants of the R/V Sonne 156 Cruise (PUCK Expedition 2001) who contributed to the success of this study. The expedition was funded by the German BMBF (No. 03GO156A) and organized in the framework of the FONDAP Humboldt Program 1997-2000 (CONICYT, Chile). Ongoing cooperation between the AW) and UdeC was funded by the International Bureau of the BMBF (Project No. CHL01/010). This research was funded by the COPAS center (CONICYT, Chile). The CIEP center (Gobierno regional de Aysen, BIP, No. 3004258-0) and the Census of Marine Life and affiliated field project COMARGE are thnaked for support given during the writing phase of this work. Taxonomic assistance was provided by Guillermo Guzman (crustaceans), Dr. Maritza Palma (polychaetes), Cynthia Lara de Castro Manso (ophiuroids), and Milton Pedraza and Dr. Ciro Oyarzon (fishes). We acknowledge the comments of two anonymous reviewers that helped to improve previous versions of this work.2FONDEFeduardo.quiroga@ciep.clGerman BMBF [03GO156A]; FONDAP Humboldt Program 1997-2000; International Bureau of the BMBF [CHL01/010]; COPAS center (CONICYT, Chile)16FONDEF561879-0100D04I1111D04I1111virtual::33701-1WOS:000268272100008WOS:0002682721000080967-0645https://hdl.handle.net/10533/198016PERGAMON-ELSEVIER SCIENCE LTDinstname: Conicytreponame: Repositorio Digital RI2.0instname: Conicytreponame: Repositorio Digital RI2.010.1016/j.dsr2.2008.09.010info:eu-repo/grantAgreement/Fondef/D04I1111info:eu-repo/semantics/dataset/hdl.handle.net/10533/93477https://doi.org/10.1016/j.dsr2.2008.09.010info:eu-repo/semantics/openAccessBenthic megafaunal and demersal fish assemblages on the chilean continental margin: the influence of the oxygen minimum zone on bathymetric distributionDEEP-SEA RESEARCH. PART 2. TOPICAL STUDIES IN OCEANOGRAPHYDeep-Sea Res. Part II-Top. Stud. Oceanogr.Articuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionengArticulohttps://hdl.handle.net/10533/198016FONDEFhttp://purl.org/coar/resource_type/c_2df8fbb13bff9df4-54a6-428b-a8fc-4895896035cbvirtual::33701-13bff9df4-54a6-428b-a8fc-4895896035cbvirtual::33701-110533/198016oai:repositorio.anid.cl:10533/1980162023-07-24 15:58:54.323https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
score 15,812429

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