Benthic Assemblages of the Powell Basin
—During 79th cruise of R/V Akademik Mstislav Keldysh twelve trawl hauls were collected in Powell Basin and adjacent area at depths 370–3771 m. The structure of the benthic assemblages was highly variable when considered at the macrotaxon level. The main factors shaping the taxonomical structure of t...
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| Veröffentlicht in: | Oceanology (Washington. 1965) 2021-03, Vol.61 (2), p.204-219 |
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| creator | Galkin, S. V. Minin, K. V. Udalov, A. A. Chikina, M. V. Frey, D. I. Molodtsova, T. N. Simakov, M. I. Golovan, O. A. Soshnina, V. A. Neretin, N. Yu Spiridonov, V. A. |
| description | —During 79th cruise of R/V
Akademik Mstislav Keldysh
twelve trawl hauls were collected in Powell Basin and adjacent area at depths 370–3771 m. The structure of the benthic assemblages was highly variable when considered at the macrotaxon level. The main factors shaping the taxonomical structure of the sampled assemblages were depth, near-bottom current velocities and proportion of the hard fraction of the sediment. Hard substrate assemblages of the Antarctic peninsula slope and Philip Ridge with high percentage of filter-feeders (mainly sponges) were associated with the highest values of the near-bottom tide currents (up to 55.6 cm/s). In several trawl hauls indicator species of vulnerable marine ecosystems—mainly Demospongiae sponges, deep-sea corals Stylasteridae (Hydrozoa) and Primnoidae (Octocorallia)—were collected. |
| doi_str_mv | 10.1134/S0001437021020053 |
| format | Article |
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Akademik Mstislav Keldysh
twelve trawl hauls were collected in Powell Basin and adjacent area at depths 370–3771 m. The structure of the benthic assemblages was highly variable when considered at the macrotaxon level. The main factors shaping the taxonomical structure of the sampled assemblages were depth, near-bottom current velocities and proportion of the hard fraction of the sediment. Hard substrate assemblages of the Antarctic peninsula slope and Philip Ridge with high percentage of filter-feeders (mainly sponges) were associated with the highest values of the near-bottom tide currents (up to 55.6 cm/s). In several trawl hauls indicator species of vulnerable marine ecosystems—mainly Demospongiae sponges, deep-sea corals Stylasteridae (Hydrozoa) and Primnoidae (Octocorallia)—were collected.</description><identifier>ISSN: 0001-4370</identifier><identifier>EISSN: 1531-8508</identifier><identifier>DOI: 10.1134/S0001437021020053</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Aquatic invertebrates ; Benthos ; Benthos collecting devices ; Bottom currents ; Corals ; Deep sea ; Deep water ; Depth indicators ; Earth and Environmental Science ; Earth Sciences ; Feeders ; Indicator organisms ; Indicator species ; Marine Biology ; Marine ecosystems ; Marine invertebrates ; Oceanography ; Sea currents ; Sponges ; Substrates ; Threatened species ; Vulnerable marine ecosystems</subject><ispartof>Oceanology (Washington. 1965), 2021-03, Vol.61 (2), p.204-219</ispartof><rights>Pleiades Publishing, Inc. 2021. ISSN 0001-4370, Oceanology, 2021, Vol. 61, No. 2, pp. 204–219. © Pleiades Publishing, Inc., 2021. Russian Text © The Author(s), 2021, published in Okeanologiya, 2021, Vol. 61, No. 2, pp. 233–249.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c364t-a0cfd2d00ee253d1eba2142de92add10ad28068017e7b5df9769e559d2ca5cf43</citedby><cites>FETCH-LOGICAL-c364t-a0cfd2d00ee253d1eba2142de92add10ad28068017e7b5df9769e559d2ca5cf43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0001437021020053$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0001437021020053$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51298</link.rule.ids></links><search><creatorcontrib>Galkin, S. V.</creatorcontrib><creatorcontrib>Minin, K. V.</creatorcontrib><creatorcontrib>Udalov, A. A.</creatorcontrib><creatorcontrib>Chikina, M. V.</creatorcontrib><creatorcontrib>Frey, D. I.</creatorcontrib><creatorcontrib>Molodtsova, T. N.</creatorcontrib><creatorcontrib>Simakov, M. I.</creatorcontrib><creatorcontrib>Golovan, O. A.</creatorcontrib><creatorcontrib>Soshnina, V. A.</creatorcontrib><creatorcontrib>Neretin, N. Yu</creatorcontrib><creatorcontrib>Spiridonov, V. A.</creatorcontrib><title>Benthic Assemblages of the Powell Basin</title><title>Oceanology (Washington. 1965)</title><addtitle>Oceanology</addtitle><description>—During 79th cruise of R/V
Akademik Mstislav Keldysh
twelve trawl hauls were collected in Powell Basin and adjacent area at depths 370–3771 m. The structure of the benthic assemblages was highly variable when considered at the macrotaxon level. The main factors shaping the taxonomical structure of the sampled assemblages were depth, near-bottom current velocities and proportion of the hard fraction of the sediment. Hard substrate assemblages of the Antarctic peninsula slope and Philip Ridge with high percentage of filter-feeders (mainly sponges) were associated with the highest values of the near-bottom tide currents (up to 55.6 cm/s). In several trawl hauls indicator species of vulnerable marine ecosystems—mainly Demospongiae sponges, deep-sea corals Stylasteridae (Hydrozoa) and Primnoidae (Octocorallia)—were collected.</description><subject>Aquatic invertebrates</subject><subject>Benthos</subject><subject>Benthos collecting devices</subject><subject>Bottom currents</subject><subject>Corals</subject><subject>Deep sea</subject><subject>Deep water</subject><subject>Depth indicators</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Feeders</subject><subject>Indicator organisms</subject><subject>Indicator species</subject><subject>Marine Biology</subject><subject>Marine ecosystems</subject><subject>Marine invertebrates</subject><subject>Oceanography</subject><subject>Sea currents</subject><subject>Sponges</subject><subject>Substrates</subject><subject>Threatened species</subject><subject>Vulnerable marine ecosystems</subject><issn>0001-4370</issn><issn>1531-8508</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kE1Lw0AQhhdRMFZ_gLeAB0_RmdlsPo5t8QsKCup52WQnbUqa1N0U8d-bEMGDeJrD-zzvwCvEJcINooxvXwEAY5kCIRCAkkciQCUxyhRkxyIY42jMT8WZ91sAiXGeBeJ6wW2_qctw7j3visas2YddFfYbDl-6T26acGF83Z6Lk8o0ni9-7ky839-9LR-j1fPD03K-ikqZxH1koKwsWQBmUtIiF4YwJss5GWsRjKUMkgww5bRQtsrTJGelckulUWUVy5m4mnr3rvs4sO_1tju4dnipSREhyTRRA4UTVbrOe8eV3rt6Z9yXRtDjHvrPHoNDk-MHtl2z-23-X_oG--lfZg</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Galkin, S. 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A.</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Oceanology (Washington. 1965)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Galkin, S. V.</au><au>Minin, K. V.</au><au>Udalov, A. A.</au><au>Chikina, M. V.</au><au>Frey, D. I.</au><au>Molodtsova, T. N.</au><au>Simakov, M. I.</au><au>Golovan, O. A.</au><au>Soshnina, V. A.</au><au>Neretin, N. Yu</au><au>Spiridonov, V. 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Akademik Mstislav Keldysh
twelve trawl hauls were collected in Powell Basin and adjacent area at depths 370–3771 m. The structure of the benthic assemblages was highly variable when considered at the macrotaxon level. The main factors shaping the taxonomical structure of the sampled assemblages were depth, near-bottom current velocities and proportion of the hard fraction of the sediment. Hard substrate assemblages of the Antarctic peninsula slope and Philip Ridge with high percentage of filter-feeders (mainly sponges) were associated with the highest values of the near-bottom tide currents (up to 55.6 cm/s). In several trawl hauls indicator species of vulnerable marine ecosystems—mainly Demospongiae sponges, deep-sea corals Stylasteridae (Hydrozoa) and Primnoidae (Octocorallia)—were collected.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0001437021020053</doi><tpages>16</tpages></addata></record> |
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| subjects | Aquatic invertebrates Benthos Benthos collecting devices Bottom currents Corals Deep sea Deep water Depth indicators Earth and Environmental Science Earth Sciences Feeders Indicator organisms Indicator species Marine Biology Marine ecosystems Marine invertebrates Oceanography Sea currents Sponges Substrates Threatened species Vulnerable marine ecosystems |
| title | Benthic Assemblages of the Powell Basin |
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