Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure

During the austral summers of 2003 and 2006 suprabenthic assemblages were investigated at 35 stations located in the Bellingshausen Sea and off the western Antarctic Peninsula, at depths ranging from 45 to 3280 m. Suprabenthos was collected with a Macer-GIROQ sledge equipped with an automatic openin...

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Published in:Scientia Marina
Main Authors: San Vicente, Carlos, Munilla, Tomas, Corbera, Jordi, Sorbe, Jean-Claude, Ramos, Ana
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2009
Subjects:
Online Access:https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068
https://doi.org/10.3989/scimar.2009.73n2357
id ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1068
record_format openpolar
institution Open Polar
collection Scientia Marina (E-Journal)
op_collection_id ftjscientiamarin
language English
topic suprabenthos
Bellingshausen Sea
Antarctic Peninsula
Southern Ocean
suprabentos
mar de Bellingshausen
Península Antártica
Antártida
spellingShingle suprabenthos
Bellingshausen Sea
Antarctic Peninsula
Southern Ocean
suprabentos
mar de Bellingshausen
Península Antártica
Antártida
San Vicente, Carlos
Munilla, Tomas
Corbera, Jordi
Sorbe, Jean-Claude
Ramos, Ana
Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
topic_facet suprabenthos
Bellingshausen Sea
Antarctic Peninsula
Southern Ocean
suprabentos
mar de Bellingshausen
Península Antártica
Antártida
description During the austral summers of 2003 and 2006 suprabenthic assemblages were investigated at 35 stations located in the Bellingshausen Sea and off the western Antarctic Peninsula, at depths ranging from 45 to 3280 m. Suprabenthos was collected with a Macer-GIROQ sledge equipped with an automatic opening and closing system. This study presents data on the occurrence and relative abundance of the major suprabenthic taxa collected in the water layer immediately adjacent to the bottom (10-140 cm above bottom). Assemblages were dominated by Peracarida and the most common groups were Amphipoda, Mysida, Isopoda and Cumacea. Among the 66 taxa identified, 40 account for more than 80% of the dissimilarity levels among any of the different combinations between groups of stations. The highest dissimilarity values in the segregation of the pairwise station groups were obtained for Mysidae, Lysianassidae, Gammaridea, Cumacea and Munnopsidae. The recorded faunistic patterns showed dependences in the environmental variables depth and percentage of mud in the sediment, as single and combined variables. Durante los veranos australes 2003 y 2006, se investigaron las comunidades suprabentónicas en un total de 35 estaciones localizadas en el mar de Bellingshausen y al oeste de la Península Antártica, en profundidades de 45-3280 m. El suprabentos se muestreó con un trineo tipo Macer-GIROQ equipado con un sistema de abertura-cierre. Este estudio presenta los datos relativos a la abundancia de los principales taxones suprabentónicos recolectados en la capa de agua inmediatamente adyacente al fondo (10-140 cm). Las comunidades estaban dominadas por los peracáridos y los grupos más abundantes fueron Amphipoda, Mysida, Isopoda y Cumacea. De entre los 66 taxones identificados, 40 explican más del 80% de los niveles de disimilaridad entre cualesquiera de las diversas combinaciones entre grupos de estaciones. Los valores más altos de disimilaridad en la segregación de las parejas de grupos de estaciones fueron obtenidos por Mysidae, Lysianassidae, Gammaridea, Cumacea y Munnopsidae. La mejor combinación de variables ambientales con los datos faunísticos registrados es una combinación de la profundidad y del porcentaje del fango en el sedimento. En particular, la profundidad es la variable que muestra el mejor resultado cuando cada variable abiótica se considera por separado.
format Article in Journal/Newspaper
author San Vicente, Carlos
Munilla, Tomas
Corbera, Jordi
Sorbe, Jean-Claude
Ramos, Ana
author_facet San Vicente, Carlos
Munilla, Tomas
Corbera, Jordi
Sorbe, Jean-Claude
Ramos, Ana
author_sort San Vicente, Carlos
title Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
title_short Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
title_full Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
title_fullStr Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
title_full_unstemmed Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure
title_sort suprabenthic fauna from the bellingshausen sea and western antarctic peninsula: spatial distribution and community structure
publisher Consejo Superior de Investigaciones Científicas
publishDate 2009
url https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068
https://doi.org/10.3989/scimar.2009.73n2357
long_lat ENVELOPE(-85.000,-85.000,-71.000,-71.000)
ENVELOPE(-58.888,-58.888,-62.165,-62.165)
geographic Antarctic
Southern Ocean
Antarctic Peninsula
Austral
Bellingshausen Sea
De Bellingshausen
mar de Bellingshausen
geographic_facet Antarctic
Southern Ocean
Antarctic Peninsula
Austral
Bellingshausen Sea
De Bellingshausen
mar de Bellingshausen
genre Antarc*
Antarctic
Antarctic Peninsula
Antártica
Antártida
Bellingshausen Sea
Southern Ocean
genre_facet Antarc*
Antarctic
Antarctic Peninsula
Antártica
Antártida
Bellingshausen Sea
Southern Ocean
op_source Scientia Marina; Vol. 73 No. 2 (2009); 357-368
Scientia Marina; Vol. 73 Núm. 2 (2009); 357-368
1886-8134
0214-8358
10.3989/scimar.2009.73n2
op_relation https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068/1111
Aldea, C., C. Olabarria and J.S. Troncoso. – 2008. Bathymetric zonation and diversity gradient of gastropods and bivalves in West Antarctica from the South Shetland Islands to Bellingshausen Sea. Deep-Sea Res. I, 55(3): 350-368. doi:10.1016/j.dsr.2007.12.002
Arnaud, P.M., C.M. Lopez, I. Olaso, F. Ramil, A. Ramos-Espla and A. Ramos. – 1998. Semi-quantitative study of macrobenthic fauna in the region of the South Shetland Islands and the Antarctic Peninsula. Polar Biol., 19: 160-166. doi:10.1007/s003000050229
Arntz, W.E., S. Thatje, D. Gerdes, J.M. Gili, J. Gutt, U. Jacob, A. Montiel, C. Orejas and N. Teixidó. – 2005. The Antarctic-Magellan connection: macrobenthos ecology on the self and upper slope, a progress report. Sci. Mar., 69(2): 237-269.
Brandt, A. – 1993. Composition, abundance, and diversity of peracarid crustaceans on a transect of the Kolbeinsey Ridge, north of Iceland. Polar Biol., 13: 565-576. doi:10.1007/BF00236399
Brandt, A. – 1995. Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya off Greenland: documenting close benthic-pelagic coupling in the Westwind Trough. Mar. Ecol. Prog. Ser., 121: 39-51. doi:10.3354/meps121039
Brandt, A. and D. Barthel. – 1995. An improved supra- and epibenthic sledge for catching peracarida (Crustacea, Malacostraca). Ophelia, 43(1): 15-23.
Brandt, A., C. De Broyer, I. De Mesel, K.E. Ellingsen, A. Gooday, B. Hilbig, K. Linse, M. Thomson and P. Tyler. – 2007a. The deep benthos. In: A. Rogers (ed.), Antarctic Ecology: From Genes to Ecosystems, Royal Society, London. Phil. Trans. R. Soc. B., 362: 39-66.
Brandt, A., A.J. Gooday, S.B. Brix, W. Brökeland, T. Cedhagen, M. Choudhury, N. Cornelius, B. Danis, I. De Mesel, R.J. Diaz, D.C. Gillan, B. Ebbe, J. Howe, D. Janussen, S. Kaiser, K. Linse, M. Malyutina, S. Brandao, J. Pawlowski and M. Raupach. – 2007b. The Southern Ocean deep sea: first insights into biodiversity and biogeography. Nature, 447: 307-311. doi:10.1038/nature05827 PMid:17507981
Brenke, N. – 2005. An epibenthic sledge for operation on marine soft bottom and bedrock. Mar. Tech. Soc. J., 39(2): 13-24.
Brey, T., C. Daham, M. Gorny, M. Klages, M. Stiller and W.E. Arntz. – 1996. Do Antarctic benthic invertebrates show an extended level of eurybathy? Antarctic Sci., 16(4): 559-568.
Brökeland, W., M. Choudhury and A. Brandt. – 2007. Composition, abundance and distribution of Peracarida from the Southern Ocean deep sea. Deep-Sea Res. II, 54: 1752-1759. doi:10.1016/j.dsr2.2007.07.014
Cartes, J.E., J.C. Sorbe and F. Sarda. – 1994. Spatial distribution of deep-sea decapods and euphausiids near the bottom in the northwestern Mediterranean. J. Exp. Mar. Biol. Ecol., 179: 131-144. doi:10.1016/0022-0981(94)90021-3
Clark, K.R. and R.N. Gorley. – 2001. Primer v5: User Manual/Tutorial. Plymouth Marine Laboratory.
Corbera, J. – 2000. Systematics and distribution of cumaceans collected during Bentart-95 cruise around South Shetland Island (Antarctica). Sci. Mar., 64(1): 9-28 doi:10.3989/scimar.2000.64n19
De Broyer, C., Y. Scailteur, G. Chapelle and M. Rauschert. – 2001. Diversity of epibenthic habitats of gammaridean amphipods in the eastern Weddell Sea. Polar Biol., 24: 744-753. doi:10.1007/s003000100276
Field, J.G., K.R. Clarke and R.M. Warwick. – 1982. A practical strategy for analysing multispecies distribution patterns. Mar. Ecol. Prog. Ser., 46: 7-12
Kaiser, S., D.K.A. Barnes, K. Linse and A. Brandt. – 2008. Epibenthic macrofauna associated with the shelf and slope of a young and isolated Southern Ocean island. Antarctic Sci., 20(3): 281-290. doi:10.1017/S0954102008001107
Linse, K., A. Brandt, B. Hilbig and G. Wegener. – 2002. Composition and distribution of suprabenthic fauna in the south-eastern Weddell Sea and off King George Island. Antarctic Sci., 14(1): 3-10. doi:10.1017/S0954102002000512
Lörz, A.N. and A. Brandt. – 2003. Diversity of Peracarida (Crustacea, Malacostraca) caught in a suprabenthic sampler. Antarctic Sci., 15(4): 433-438. doi:10.1017/S0954102003001536
Matallanas, J. and I. Olaso. – 2007. Fishes of the Bellingshausen Sea and Peter I Island. Polar Biol., 30: 333-341. doi:10.1007/s00300-006-0189-3
Mauchline, J. – 1980. The biology of mysids and euphausiids. Advances in Marine Biology. Vol. 18: Academic Press.
Mees, J. and M.B. Jones. – 1997. The hyperbenthos. Oceanogr. Mar. Biol. Ann. Rev., 35: 221-255.
Ramos, A. – 2003. Biodiversidade bentónica das Illas do Arco de Scotia, Shetlands do Sur e Estreito de Bransfield (Antártica). Ph. D. thesis, Univ. Vigo, Spain.
Rehm, P., S. Thatje, U. Mühlenhardt-Siegel and A. Brandt. – 2007. Composition and distribution of the peracarid crustacean fauna along a latitudinal transect off Victoria Land (Ross Sea, Antarctica) with special emphasis on the Cumacea. Polar Biol., 30: 871-881. doi:10.1007/s00300-006-0247-x
Saiz-Salinas, J.I., A. Ramos, F.J. Garcia, J.S. Troncoso, G. San Martin, C. Sanz and C. Palacin. – 1997. Quantitative analysis of macrobenthic soft-bottom assemblages in South Shetland waters (Antarctica). Polar Biol., 17: 393-400. doi:10.1007/PL00013382
Saiz-Salinas, J.I., F.J. Garcia, M.E. Manjón-Cabeza, J.Parapar, A. Peñas-Cantero, T. Saucede, J.S. Troncoso and A. Ramos. – 2008. Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea. Polar Biol., 31: 735-743. doi:10.1007/s00300-008-0414-3
San Vicente, C., A. Ramos, A. Jimeno and J.C. Sorbe. – 1997. Suprabenthic assemblages from South Shetland Islands and Bransfield Strait (Antarctica): preliminary observations on faunistical composition, bathymetric and near-bottom distribution. Polar Biol., 18: 415-422. doi:10.1007/s003000050208
San Vicente, C., A. Ramos and J.C. Sorbe. – 2006. Suprabenthic euphausiids and mysids from the South Shetland Islands and the Bransfield Strait, Southern ocean (BENTART -95 cruise). Polar Biol., 29: 211-222. doi:10.1007/s00300-005-0041-1
San Vicente, C., J. Castello, J. Corbera, A. Jimeno, T. Munilla, C. Sanz, J.C. Sorbe and A. Ramos. – 2007. Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean. Polar Biol., 30: 477-486. doi:10.1007/s00300-006-0206-6
Svavarsson J, G. Gudmundsson and T. Brattegard. – 1993 Feeding by asellote isopods (Crustacea) on foraminifers (Protozoa) in the deep sea. Deep Sea Res., 40(6): 1225-1239. doi:10.1016/0967-0637(93)90135-P
Troncoso, J.S., C. Aldea, P. Arnaud, A. Ramos and F. Garcia. – 2007. Quantitative analysis of soft-bottom molluscs in the Bellingshausen Sea and around Peter I Island. Polar Res., 26: 126-134. doi:10.1111/j.1751-8369.2007.00033.x
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068
doi:10.3989/scimar.2009.73n2357
op_rights Copyright (c) 2009 Consejo Superior de Investigaciones Científicas (CSIC)
https://creativecommons.org/licenses/by/4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3989/scimar.2009.73n2357
https://doi.org/10.3989/scimar.2009.73n2
https://doi.org/10.1016/j.dsr.2007.12.002
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https://doi.org/10.1007/BF00236399
https://doi.org/10.3354/meps121039
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spelling ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1068 2023-05-15T13:41:51+02:00 Suprabenthic fauna from the Bellingshausen Sea and western Antarctic Peninsula: spatial distribution and community structure Fauna suprabentónica del mar de Bellingshausen y del oeste de la Península Antártica: distribución espacial y estructura de las comunidades San Vicente, Carlos Munilla, Tomas Corbera, Jordi Sorbe, Jean-Claude Ramos, Ana 2009-06-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068 https://doi.org/10.3989/scimar.2009.73n2357 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068/1111 Aldea, C., C. Olabarria and J.S. Troncoso. – 2008. Bathymetric zonation and diversity gradient of gastropods and bivalves in West Antarctica from the South Shetland Islands to Bellingshausen Sea. Deep-Sea Res. I, 55(3): 350-368. doi:10.1016/j.dsr.2007.12.002 Arnaud, P.M., C.M. Lopez, I. Olaso, F. Ramil, A. Ramos-Espla and A. Ramos. – 1998. Semi-quantitative study of macrobenthic fauna in the region of the South Shetland Islands and the Antarctic Peninsula. Polar Biol., 19: 160-166. doi:10.1007/s003000050229 Arntz, W.E., S. Thatje, D. Gerdes, J.M. Gili, J. Gutt, U. Jacob, A. Montiel, C. Orejas and N. Teixidó. – 2005. The Antarctic-Magellan connection: macrobenthos ecology on the self and upper slope, a progress report. Sci. Mar., 69(2): 237-269. Brandt, A. – 1993. Composition, abundance, and diversity of peracarid crustaceans on a transect of the Kolbeinsey Ridge, north of Iceland. Polar Biol., 13: 565-576. doi:10.1007/BF00236399 Brandt, A. – 1995. Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya off Greenland: documenting close benthic-pelagic coupling in the Westwind Trough. Mar. Ecol. Prog. Ser., 121: 39-51. doi:10.3354/meps121039 Brandt, A. and D. Barthel. – 1995. An improved supra- and epibenthic sledge for catching peracarida (Crustacea, Malacostraca). Ophelia, 43(1): 15-23. Brandt, A., C. De Broyer, I. De Mesel, K.E. Ellingsen, A. Gooday, B. Hilbig, K. Linse, M. Thomson and P. Tyler. – 2007a. The deep benthos. In: A. Rogers (ed.), Antarctic Ecology: From Genes to Ecosystems, Royal Society, London. Phil. Trans. R. Soc. B., 362: 39-66. Brandt, A., A.J. Gooday, S.B. Brix, W. Brökeland, T. Cedhagen, M. Choudhury, N. Cornelius, B. Danis, I. De Mesel, R.J. Diaz, D.C. Gillan, B. Ebbe, J. Howe, D. Janussen, S. Kaiser, K. Linse, M. Malyutina, S. Brandao, J. Pawlowski and M. Raupach. – 2007b. The Southern Ocean deep sea: first insights into biodiversity and biogeography. Nature, 447: 307-311. doi:10.1038/nature05827 PMid:17507981 Brenke, N. – 2005. An epibenthic sledge for operation on marine soft bottom and bedrock. Mar. Tech. Soc. J., 39(2): 13-24. Brey, T., C. Daham, M. Gorny, M. Klages, M. Stiller and W.E. Arntz. – 1996. Do Antarctic benthic invertebrates show an extended level of eurybathy? Antarctic Sci., 16(4): 559-568. Brökeland, W., M. Choudhury and A. Brandt. – 2007. Composition, abundance and distribution of Peracarida from the Southern Ocean deep sea. Deep-Sea Res. II, 54: 1752-1759. doi:10.1016/j.dsr2.2007.07.014 Cartes, J.E., J.C. Sorbe and F. Sarda. – 1994. Spatial distribution of deep-sea decapods and euphausiids near the bottom in the northwestern Mediterranean. J. Exp. Mar. Biol. Ecol., 179: 131-144. doi:10.1016/0022-0981(94)90021-3 Clark, K.R. and R.N. Gorley. – 2001. Primer v5: User Manual/Tutorial. Plymouth Marine Laboratory. Corbera, J. – 2000. Systematics and distribution of cumaceans collected during Bentart-95 cruise around South Shetland Island (Antarctica). Sci. Mar., 64(1): 9-28 doi:10.3989/scimar.2000.64n19 De Broyer, C., Y. Scailteur, G. Chapelle and M. Rauschert. – 2001. Diversity of epibenthic habitats of gammaridean amphipods in the eastern Weddell Sea. Polar Biol., 24: 744-753. doi:10.1007/s003000100276 Field, J.G., K.R. Clarke and R.M. Warwick. – 1982. A practical strategy for analysing multispecies distribution patterns. Mar. Ecol. Prog. Ser., 46: 7-12 Kaiser, S., D.K.A. Barnes, K. Linse and A. Brandt. – 2008. Epibenthic macrofauna associated with the shelf and slope of a young and isolated Southern Ocean island. Antarctic Sci., 20(3): 281-290. doi:10.1017/S0954102008001107 Linse, K., A. Brandt, B. Hilbig and G. Wegener. – 2002. Composition and distribution of suprabenthic fauna in the south-eastern Weddell Sea and off King George Island. Antarctic Sci., 14(1): 3-10. doi:10.1017/S0954102002000512 Lörz, A.N. and A. Brandt. – 2003. Diversity of Peracarida (Crustacea, Malacostraca) caught in a suprabenthic sampler. Antarctic Sci., 15(4): 433-438. doi:10.1017/S0954102003001536 Matallanas, J. and I. Olaso. – 2007. Fishes of the Bellingshausen Sea and Peter I Island. Polar Biol., 30: 333-341. doi:10.1007/s00300-006-0189-3 Mauchline, J. – 1980. The biology of mysids and euphausiids. Advances in Marine Biology. Vol. 18: Academic Press. Mees, J. and M.B. Jones. – 1997. The hyperbenthos. Oceanogr. Mar. Biol. Ann. Rev., 35: 221-255. Ramos, A. – 2003. Biodiversidade bentónica das Illas do Arco de Scotia, Shetlands do Sur e Estreito de Bransfield (Antártica). Ph. D. thesis, Univ. Vigo, Spain. Rehm, P., S. Thatje, U. Mühlenhardt-Siegel and A. Brandt. – 2007. Composition and distribution of the peracarid crustacean fauna along a latitudinal transect off Victoria Land (Ross Sea, Antarctica) with special emphasis on the Cumacea. Polar Biol., 30: 871-881. doi:10.1007/s00300-006-0247-x Saiz-Salinas, J.I., A. Ramos, F.J. Garcia, J.S. Troncoso, G. San Martin, C. Sanz and C. Palacin. – 1997. Quantitative analysis of macrobenthic soft-bottom assemblages in South Shetland waters (Antarctica). Polar Biol., 17: 393-400. doi:10.1007/PL00013382 Saiz-Salinas, J.I., F.J. Garcia, M.E. Manjón-Cabeza, J.Parapar, A. Peñas-Cantero, T. Saucede, J.S. Troncoso and A. Ramos. – 2008. Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea. Polar Biol., 31: 735-743. doi:10.1007/s00300-008-0414-3 San Vicente, C., A. Ramos, A. Jimeno and J.C. Sorbe. – 1997. Suprabenthic assemblages from South Shetland Islands and Bransfield Strait (Antarctica): preliminary observations on faunistical composition, bathymetric and near-bottom distribution. Polar Biol., 18: 415-422. doi:10.1007/s003000050208 San Vicente, C., A. Ramos and J.C. Sorbe. – 2006. Suprabenthic euphausiids and mysids from the South Shetland Islands and the Bransfield Strait, Southern ocean (BENTART -95 cruise). Polar Biol., 29: 211-222. doi:10.1007/s00300-005-0041-1 San Vicente, C., J. Castello, J. Corbera, A. Jimeno, T. Munilla, C. Sanz, J.C. Sorbe and A. Ramos. – 2007. Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean. Polar Biol., 30: 477-486. doi:10.1007/s00300-006-0206-6 Svavarsson J, G. Gudmundsson and T. Brattegard. – 1993 Feeding by asellote isopods (Crustacea) on foraminifers (Protozoa) in the deep sea. Deep Sea Res., 40(6): 1225-1239. doi:10.1016/0967-0637(93)90135-P Troncoso, J.S., C. Aldea, P. Arnaud, A. Ramos and F. Garcia. – 2007. Quantitative analysis of soft-bottom molluscs in the Bellingshausen Sea and around Peter I Island. Polar Res., 26: 126-134. doi:10.1111/j.1751-8369.2007.00033.x https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1068 doi:10.3989/scimar.2009.73n2357 Copyright (c) 2009 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 73 No. 2 (2009); 357-368 Scientia Marina; Vol. 73 Núm. 2 (2009); 357-368 1886-8134 0214-8358 10.3989/scimar.2009.73n2 suprabenthos Bellingshausen Sea Antarctic Peninsula Southern Ocean suprabentos mar de Bellingshausen Península Antártica Antártida info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2009 ftjscientiamarin https://doi.org/10.3989/scimar.2009.73n2357 https://doi.org/10.3989/scimar.2009.73n2 https://doi.org/10.1016/j.dsr.2007.12.002 https://doi.org/10.1007/s003000050229 https://doi.org/10.1007/BF00236399 https://doi.org/10.3354/meps121039 https:// 2022-03-20T16:30:59Z During the austral summers of 2003 and 2006 suprabenthic assemblages were investigated at 35 stations located in the Bellingshausen Sea and off the western Antarctic Peninsula, at depths ranging from 45 to 3280 m. Suprabenthos was collected with a Macer-GIROQ sledge equipped with an automatic opening and closing system. This study presents data on the occurrence and relative abundance of the major suprabenthic taxa collected in the water layer immediately adjacent to the bottom (10-140 cm above bottom). Assemblages were dominated by Peracarida and the most common groups were Amphipoda, Mysida, Isopoda and Cumacea. Among the 66 taxa identified, 40 account for more than 80% of the dissimilarity levels among any of the different combinations between groups of stations. The highest dissimilarity values in the segregation of the pairwise station groups were obtained for Mysidae, Lysianassidae, Gammaridea, Cumacea and Munnopsidae. The recorded faunistic patterns showed dependences in the environmental variables depth and percentage of mud in the sediment, as single and combined variables. Durante los veranos australes 2003 y 2006, se investigaron las comunidades suprabentónicas en un total de 35 estaciones localizadas en el mar de Bellingshausen y al oeste de la Península Antártica, en profundidades de 45-3280 m. El suprabentos se muestreó con un trineo tipo Macer-GIROQ equipado con un sistema de abertura-cierre. Este estudio presenta los datos relativos a la abundancia de los principales taxones suprabentónicos recolectados en la capa de agua inmediatamente adyacente al fondo (10-140 cm). Las comunidades estaban dominadas por los peracáridos y los grupos más abundantes fueron Amphipoda, Mysida, Isopoda y Cumacea. De entre los 66 taxones identificados, 40 explican más del 80% de los niveles de disimilaridad entre cualesquiera de las diversas combinaciones entre grupos de estaciones. Los valores más altos de disimilaridad en la segregación de las parejas de grupos de estaciones fueron obtenidos por Mysidae, Lysianassidae, Gammaridea, Cumacea y Munnopsidae. La mejor combinación de variables ambientales con los datos faunísticos registrados es una combinación de la profundidad y del porcentaje del fango en el sedimento. En particular, la profundidad es la variable que muestra el mejor resultado cuando cada variable abiótica se considera por separado. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antártica Antártida Bellingshausen Sea Southern Ocean Scientia Marina (E-Journal) Antarctic Southern Ocean Antarctic Peninsula Austral Bellingshausen Sea De Bellingshausen ENVELOPE(-85.000,-85.000,-71.000,-71.000) mar de Bellingshausen ENVELOPE(-58.888,-58.888,-62.165,-62.165) Scientia Marina 73 2 357 368