Long-term relationships between the marine environment, krill and salps in the Southern Ocean
Long-termvariations (1975–2002) in climatology of marine environmental parameters, Antarctic krill, Euphausia superba, and the pelagic tunicate, Salpa thompsoni, were compared within the Atlantic Sector of the Southern Ocean. Sea water temperature in the top 400m increased at a rate of 0.020–0.030?C...
Published in: | Journal of Marine Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2010
|
Subjects: | |
Online Access: | https://doi.org/10.1155/2010/410129 https://www.openagrar.de/receive/timport_mods_00037168 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037168/dn048370.pdf http://www.hindawi.com/journals/jmb/2010/410129/ |
id |
ftopenagrar:oai:www.openagrar.de:timport_mods_00037168 |
---|---|
record_format |
openpolar |
spelling |
ftopenagrar:oai:www.openagrar.de:timport_mods_00037168 2023-05-15T14:04:09+02:00 Long-term relationships between the marine environment, krill and salps in the Southern Ocean Lee, Chung Il Pakhomov, Evgeny A. Atkinson, Angus Siegel, Volker 2010 17 https://doi.org/10.1155/2010/410129 https://www.openagrar.de/receive/timport_mods_00037168 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037168/dn048370.pdf http://www.hindawi.com/journals/jmb/2010/410129/ eng eng Journal of marine biology -- 1687-949X -- 1687-9481 -- 2530934-1 https://doi.org/10.1155/2010/410129 https://www.openagrar.de/receive/timport_mods_00037168 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037168/dn048370.pdf http://www.hindawi.com/journals/jmb/2010/410129/ public info:eu-repo/semantics/openAccess Text article Text 2010 ftopenagrar https://doi.org/10.1155/2010/410129 2023-02-20T00:03:38Z Long-termvariations (1975–2002) in climatology of marine environmental parameters, Antarctic krill, Euphausia superba, and the pelagic tunicate, Salpa thompsoni, were compared within the Atlantic Sector of the Southern Ocean. Sea water temperature in the top 400m increased at a rate of 0.020–0.030?C · yr-1, which was accompanied by the dissolved oxygen decline. Top 100m water layer became fresher with lower concentrations of phosphates and nitrates, while at subsurface layers (200–400 m) both salinity and nutrients showed small increasing trend. Unlike phosphates and nitrates, silicate concentrations decreased in the entire water column. Shorter-termwater temperature dynamics closely correlated with the El Nino events expressed as the Southern Oscillation Index which in turn was linked to the propagation of the Antarctic Circumpolar Wave (ACW). The variations of sea-ice extent matched well the changes in both air and water temperatures. In general, abundance of krill and salps showed opposite to each other trends. Due to large area considered in this study, no significant relationships between abiotic factors and both krill and salps were found. However, our analysis demonstrated that krill abundance was greater in years with lower sea water temperature, greater sea-ice extent and higher nutrient concentration, while salps showed the opposite pattern. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Sea ice Southern Ocean OpenAgrar (OA) Antarctic Southern Ocean The Antarctic Journal of Marine Biology 2010 1 18 |
institution |
Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
Text |
spellingShingle |
Text Lee, Chung Il Pakhomov, Evgeny A. Atkinson, Angus Siegel, Volker Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
topic_facet |
Text |
description |
Long-termvariations (1975–2002) in climatology of marine environmental parameters, Antarctic krill, Euphausia superba, and the pelagic tunicate, Salpa thompsoni, were compared within the Atlantic Sector of the Southern Ocean. Sea water temperature in the top 400m increased at a rate of 0.020–0.030?C · yr-1, which was accompanied by the dissolved oxygen decline. Top 100m water layer became fresher with lower concentrations of phosphates and nitrates, while at subsurface layers (200–400 m) both salinity and nutrients showed small increasing trend. Unlike phosphates and nitrates, silicate concentrations decreased in the entire water column. Shorter-termwater temperature dynamics closely correlated with the El Nino events expressed as the Southern Oscillation Index which in turn was linked to the propagation of the Antarctic Circumpolar Wave (ACW). The variations of sea-ice extent matched well the changes in both air and water temperatures. In general, abundance of krill and salps showed opposite to each other trends. Due to large area considered in this study, no significant relationships between abiotic factors and both krill and salps were found. However, our analysis demonstrated that krill abundance was greater in years with lower sea water temperature, greater sea-ice extent and higher nutrient concentration, while salps showed the opposite pattern. |
format |
Article in Journal/Newspaper |
author |
Lee, Chung Il Pakhomov, Evgeny A. Atkinson, Angus Siegel, Volker |
author_facet |
Lee, Chung Il Pakhomov, Evgeny A. Atkinson, Angus Siegel, Volker |
author_sort |
Lee, Chung Il |
title |
Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
title_short |
Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
title_full |
Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
title_fullStr |
Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
title_full_unstemmed |
Long-term relationships between the marine environment, krill and salps in the Southern Ocean |
title_sort |
long-term relationships between the marine environment, krill and salps in the southern ocean |
publishDate |
2010 |
url |
https://doi.org/10.1155/2010/410129 https://www.openagrar.de/receive/timport_mods_00037168 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037168/dn048370.pdf http://www.hindawi.com/journals/jmb/2010/410129/ |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Sea ice Southern Ocean |
op_relation |
Journal of marine biology -- 1687-949X -- 1687-9481 -- 2530934-1 https://doi.org/10.1155/2010/410129 https://www.openagrar.de/receive/timport_mods_00037168 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00037168/dn048370.pdf http://www.hindawi.com/journals/jmb/2010/410129/ |
op_rights |
public info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1155/2010/410129 |
container_title |
Journal of Marine Biology |
container_volume |
2010 |
container_start_page |
1 |
op_container_end_page |
18 |
_version_ |
1766275162247790592 |