Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean
During the austral summer 1995, suprabenthic samplings were carried out at 24 stations (depth range 45-649 m) located around Livingston Island, within the caldera of Deception Island and in the Bransfield Strait. At each station, the near-bottom motile fauna was simultaneously collected with a multi...
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| Veröffentlicht in: | Polar biology 2007-03, Vol.30 (4), p.477-486 |
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| creator | SAN VICENTE, C CASTELLO, J CORBERA, J JIMENO, A MUNILLA, T SANZ, M. C SORBE, J. C RAMOS, A |
| description | During the austral summer 1995, suprabenthic samplings were carried out at 24 stations (depth range 45-649 m) located around Livingston Island, within the caldera of Deception Island and in the Bransfield Strait. At each station, the near-bottom motile fauna was simultaneously collected with a multinet Macer-GIROQ sled in three water layers above the bottom. This study presents original data on the occurrence, diversity, vertical distribution and abundance of suprabenthic taxa in this near-bottom environment. The most speciose taxa were amphipods (at least 140 spp.), followed by isopods (66 spp.), pycnogonids (31 spp.) and mysids (19 spp.). Total abundances ranged between 31 ind./100 m^sup 2^ (Bransfield Strait, 361 m depth) and 6817 ind./100 m^sup 2^ (South Livingston Island, 163 m depth). According to stations, the groups numerically dominant and more frequent were amphipods (17 stations) or mysids (seven stations). Four suprabenthic assemblages were discriminated in the study area, apparently more structured by the degree of shelter-exposure and development of sessile epifauna than by water depth or sediment features.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s00300-006-0206-6 |
| format | Article |
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According to stations, the groups numerically dominant and more frequent were amphipods (17 stations) or mysids (seven stations). Four suprabenthic assemblages were discriminated in the study area, apparently more structured by the degree of shelter-exposure and development of sessile epifauna than by water depth or sediment features.[PUBLICATION ABSTRACT]</description><identifier>ISSN: 0722-4060</identifier><identifier>EISSN: 1432-2056</identifier><identifier>DOI: 10.1007/s00300-006-0206-6</identifier><identifier>CODEN: POBIDP</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Calderas ; Fundamental and applied biological sciences. 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C</creatorcontrib><creatorcontrib>SORBE, J. C</creatorcontrib><creatorcontrib>RAMOS, A</creatorcontrib><title>Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean</title><title>Polar biology</title><description>During the austral summer 1995, suprabenthic samplings were carried out at 24 stations (depth range 45-649 m) located around Livingston Island, within the caldera of Deception Island and in the Bransfield Strait. At each station, the near-bottom motile fauna was simultaneously collected with a multinet Macer-GIROQ sled in three water layers above the bottom. This study presents original data on the occurrence, diversity, vertical distribution and abundance of suprabenthic taxa in this near-bottom environment. The most speciose taxa were amphipods (at least 140 spp.), followed by isopods (66 spp.), pycnogonids (31 spp.) and mysids (19 spp.). Total abundances ranged between 31 ind./100 m^sup 2^ (Bransfield Strait, 361 m depth) and 6817 ind./100 m^sup 2^ (South Livingston Island, 163 m depth). According to stations, the groups numerically dominant and more frequent were amphipods (17 stations) or mysids (seven stations). Four suprabenthic assemblages were discriminated in the study area, apparently more structured by the degree of shelter-exposure and development of sessile epifauna than by water depth or sediment features.[PUBLICATION ABSTRACT]</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Calderas</subject><subject>Fundamental and applied biological sciences. 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| identifier | ISSN: 0722-4060 |
| ispartof | Polar biology, 2007-03, Vol.30 (4), p.477-486 |
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| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Calderas Fundamental and applied biological sciences. Psychology Isopoda Oceanography Particular ecosystems Sea water ecosystems Straits Synecology Vertical distribution Water depth |
| title | Biodiversity and structure of the suprabenthic assemblages from South Shetland Islands and Bransfield Strait, Southern Ocean |
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