Metazoan meiofauna within the oxygen-minimum zone off Chile: Results of the 2001-PUCK expedition
A quantitative study of metazoan meiofauna was carried out at continental shelf and slope stations affected by the oxygen-minimum zone in the eastern South Pacific off Chile. Densities of meiobenthos at the investigated stations off Antofagasta (22°S), Concepción (36°S), and Chiloé (42°S) ranged fro...
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| Veröffentlicht in: | Deep-sea research. Part II, Topical studies in oceanography Topical studies in oceanography, 2009-07, Vol.56 (16), p.1105-1111 |
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| creator | Veit-Köhler, Gritta Gerdes, Dieter Quiroga, Eduardo Hebbeln, Dierk Sellanes, Javier |
| description | A quantitative study of metazoan meiofauna was carried out at continental shelf and slope stations affected by the oxygen-minimum zone in the eastern South Pacific off Chile. Densities of meiobenthos at the investigated stations off Antofagasta (22°S), Concepción (36°S), and Chiloé (42°S) ranged from 1282.1 to 8847.8
ind
10
cm
−2. Oxygen deficiency led only to average abundances, despite higher food availability and freshness at the corresponding sites. Sediment organic carbon, chlorophyll-
a, and phaeopigment contents were used as measures of the input from water-column primary production, which accumulated at the oxygen-minimum zone stations. The highest abundances were found at a station with an oxygen content of 0.79
mL
L
−1, which was slightly elevated from what is defined as oxygen minimum (0.5
mL
L
−1). The most oxygenated site yielded the lowest densities. Meiofauna assemblages became more diverse with increasing bottom-water oxygenation, whereas nematodes were the most abundant taxon at every station, followed by annelids, copepods, and nauplii. |
| doi_str_mv | 10.1016/j.dsr2.2008.09.013 |
| format | Article |
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ind
10
cm
−2. Oxygen deficiency led only to average abundances, despite higher food availability and freshness at the corresponding sites. Sediment organic carbon, chlorophyll-
a, and phaeopigment contents were used as measures of the input from water-column primary production, which accumulated at the oxygen-minimum zone stations. The highest abundances were found at a station with an oxygen content of 0.79
mL
L
−1, which was slightly elevated from what is defined as oxygen minimum (0.5
mL
L
−1). The most oxygenated site yielded the lowest densities. Meiofauna assemblages became more diverse with increasing bottom-water oxygenation, whereas nematodes were the most abundant taxon at every station, followed by annelids, copepods, and nauplii.</description><identifier>ISSN: 0967-0645</identifier><identifier>EISSN: 1879-0100</identifier><identifier>DOI: 10.1016/j.dsr2.2008.09.013</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Annelida ; Continental margin ; Copepoda ; Marine ; Meiofauna communities ; Metazoa ; Nematoda ; Oxygen-deficient sediments ; Oxygen-minimum zone</subject><ispartof>Deep-sea research. Part II, Topical studies in oceanography, 2009-07, Vol.56 (16), p.1105-1111</ispartof><rights>2008 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-f9b53d6ca82ee8d028dfda7b5b08111a3c569875551cafd5cfb1f1d37479f4213</citedby><cites>FETCH-LOGICAL-c362t-f9b53d6ca82ee8d028dfda7b5b08111a3c569875551cafd5cfb1f1d37479f4213</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0967064508003329$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Veit-Köhler, Gritta</creatorcontrib><creatorcontrib>Gerdes, Dieter</creatorcontrib><creatorcontrib>Quiroga, Eduardo</creatorcontrib><creatorcontrib>Hebbeln, Dierk</creatorcontrib><creatorcontrib>Sellanes, Javier</creatorcontrib><title>Metazoan meiofauna within the oxygen-minimum zone off Chile: Results of the 2001-PUCK expedition</title><title>Deep-sea research. Part II, Topical studies in oceanography</title><description>A quantitative study of metazoan meiofauna was carried out at continental shelf and slope stations affected by the oxygen-minimum zone in the eastern South Pacific off Chile. Densities of meiobenthos at the investigated stations off Antofagasta (22°S), Concepción (36°S), and Chiloé (42°S) ranged from 1282.1 to 8847.8
ind
10
cm
−2. Oxygen deficiency led only to average abundances, despite higher food availability and freshness at the corresponding sites. Sediment organic carbon, chlorophyll-
a, and phaeopigment contents were used as measures of the input from water-column primary production, which accumulated at the oxygen-minimum zone stations. The highest abundances were found at a station with an oxygen content of 0.79
mL
L
−1, which was slightly elevated from what is defined as oxygen minimum (0.5
mL
L
−1). The most oxygenated site yielded the lowest densities. Meiofauna assemblages became more diverse with increasing bottom-water oxygenation, whereas nematodes were the most abundant taxon at every station, followed by annelids, copepods, and nauplii.</description><subject>Annelida</subject><subject>Continental margin</subject><subject>Copepoda</subject><subject>Marine</subject><subject>Meiofauna communities</subject><subject>Metazoa</subject><subject>Nematoda</subject><subject>Oxygen-deficient sediments</subject><subject>Oxygen-minimum zone</subject><issn>0967-0645</issn><issn>1879-0100</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEuXxA6yyYpcwjuPEQWxQxUuAQAjWxrXH1FVilzjh9fWklDWsRro6d0ZzCDmgkFGg5dEiM7HLsxxAZFBnQNkGmVBR1SlQgE0ygbqsUigLvk12YlwAAGNlPSHPt9irr6B80qILVg1eJe-unzuf9HNMwsfnC_q0dd61Q5t8BT9m1ibTuWvwOHnAODR9HKMfejxP0_un6XWCH0s0rnfB75Etq5qI-79zlzydnz1OL9Obu4ur6elNqlmZ96mtZ5yZUiuRIwoDuTDWqGrGZyAopYppXtai4pxTrazh2s6opYZVRVXbIqdslxyu9y678Dpg7GXrosamUR7DECUrCsFFUfwL5itLRclHMF-DugsxdmjlsnOt6j4lBbmyLhdyZV2urEuo5Wh9LJ2sSzj--uawk1E79Hq00aHupQnur_o3eG2Kkw</recordid><startdate>20090715</startdate><enddate>20090715</enddate><creator>Veit-Köhler, Gritta</creator><creator>Gerdes, Dieter</creator><creator>Quiroga, Eduardo</creator><creator>Hebbeln, Dierk</creator><creator>Sellanes, Javier</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20090715</creationdate><title>Metazoan meiofauna within the oxygen-minimum zone off Chile: Results of the 2001-PUCK expedition</title><author>Veit-Köhler, Gritta ; Gerdes, Dieter ; Quiroga, Eduardo ; Hebbeln, Dierk ; Sellanes, Javier</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-f9b53d6ca82ee8d028dfda7b5b08111a3c569875551cafd5cfb1f1d37479f4213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Annelida</topic><topic>Continental margin</topic><topic>Copepoda</topic><topic>Marine</topic><topic>Meiofauna communities</topic><topic>Metazoa</topic><topic>Nematoda</topic><topic>Oxygen-deficient sediments</topic><topic>Oxygen-minimum zone</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Veit-Köhler, Gritta</creatorcontrib><creatorcontrib>Gerdes, Dieter</creatorcontrib><creatorcontrib>Quiroga, Eduardo</creatorcontrib><creatorcontrib>Hebbeln, Dierk</creatorcontrib><creatorcontrib>Sellanes, Javier</creatorcontrib><collection>CrossRef</collection><collection>Ecology 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) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Deep-sea research. Part II, Topical studies in oceanography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Veit-Köhler, Gritta</au><au>Gerdes, Dieter</au><au>Quiroga, Eduardo</au><au>Hebbeln, Dierk</au><au>Sellanes, Javier</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metazoan meiofauna within the oxygen-minimum zone off Chile: Results of the 2001-PUCK expedition</atitle><jtitle>Deep-sea research. Part II, Topical studies in oceanography</jtitle><date>2009-07-15</date><risdate>2009</risdate><volume>56</volume><issue>16</issue><spage>1105</spage><epage>1111</epage><pages>1105-1111</pages><issn>0967-0645</issn><eissn>1879-0100</eissn><abstract>A quantitative study of metazoan meiofauna was carried out at continental shelf and slope stations affected by the oxygen-minimum zone in the eastern South Pacific off Chile. Densities of meiobenthos at the investigated stations off Antofagasta (22°S), Concepción (36°S), and Chiloé (42°S) ranged from 1282.1 to 8847.8
ind
10
cm
−2. Oxygen deficiency led only to average abundances, despite higher food availability and freshness at the corresponding sites. Sediment organic carbon, chlorophyll-
a, and phaeopigment contents were used as measures of the input from water-column primary production, which accumulated at the oxygen-minimum zone stations. The highest abundances were found at a station with an oxygen content of 0.79
mL
L
−1, which was slightly elevated from what is defined as oxygen minimum (0.5
mL
L
−1). The most oxygenated site yielded the lowest densities. Meiofauna assemblages became more diverse with increasing bottom-water oxygenation, whereas nematodes were the most abundant taxon at every station, followed by annelids, copepods, and nauplii.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.dsr2.2008.09.013</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Deep-sea research. Part II, Topical studies in oceanography, 2009-07, Vol.56 (16), p.1105-1111 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Annelida Continental margin Copepoda Marine Meiofauna communities Metazoa Nematoda Oxygen-deficient sediments Oxygen-minimum zone |
| title | Metazoan meiofauna within the oxygen-minimum zone off Chile: Results of the 2001-PUCK expedition |
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