Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean
In order to understand the response of the deep-sea meiobenthos to a highly varying, ice-edge-related input of phytodetritus, we investigated the abundance and composition of the meiobenthos at the arctic long-term deep-sea station HAUSGARTEN (79°N, 4°E) along a bathymetric transect (1200-5500 m wat...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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ftvliz:oai:oma.vliz.be:210783 2023-05-15T15:00:27+02:00 Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean Hoste, E. Vanhove, S. Schewe, I. Soltwedel, T. Vanreusel, A. 2007 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210783 en eng info:eu-repo/semantics/altIdentifier/wos/000244117700007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr.2006.09.007 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210783 info:eu-repo/semantics/restrictedAccess %3Ci%3EDeep-Sea+Res.,+Part+1,+Oceanogr.+Res.+Pap.+54%281%29%3C%2Fi%3E%3A+109-129.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr.2006.09.007%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr.2006.09.007%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftvliz https://doi.org/10.1016/j.dsr.2006.09.007 2022-05-01T09:37:27Z In order to understand the response of the deep-sea meiobenthos to a highly varying, ice-edge-related input of phytodetritus, we investigated the abundance and composition of the meiobenthos at the arctic long-term deep-sea station HAUSGARTEN (79°N, 4°E) along a bathymetric transect (1200-5500 m water depth) over 5 consecutive years (from 2000 to 2004) in relation to changes in environmental conditions. Results showed high sediment-bound pigment concentrations (chlorophyll a and degradation products) ranging from 4.5 to 41.6 µg/cm 3 , and coinciding high meiobenthic densities ranging from 149 +/- 3 to 3409 +/- 525 ind/10cm 2 . Nematodes dominated the metazoan meiofaunal communities at every depth and time (85-99% of total meiofauna abundance), followed by harpacticoid copepods (0-4.6% of total meiofauna abundance). The expected pattern of gradually decreasing meiobenthic densities with increasing water depth was not confirmed. Instead, the bathymetric transect could be subdivided into a shallow area with equally high nematode and copepod densities from 1000 to 2000 in water depth (means: 2259 +/- 157 Nematoda/10cm 2 , and 50 +/- 4 Copepoda/10cm 2 ), and a deeper area from 3000 to 5500 m water depth with similar low nematode and copepod densities (means: 595 +/- 52 Nematoda/10cm 2 , and 11 +/- 2 Copepoda/10cm 2 ). Depth-related investigations on the meiobenthos at the HAUSGARTEN site showed a significant correlation between meiobenthos densities, microbial exo-enzymatic activity (esterase turnover) and phytodetrital food availability (chlorophyll a and phaeophytines). In time-series investigations, our data showed inter-annual variations in meiofauna abundance. However, no consistent relationship between nematode and copepod densities, and measures for organic matter input were found. Article in Journal/Newspaper Arctic Arctic Ocean Copepods Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Arctic Arctic Ocean Deep Sea Research Part I: Oceanographic Research Papers 54 1 109 129 |
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Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
description |
In order to understand the response of the deep-sea meiobenthos to a highly varying, ice-edge-related input of phytodetritus, we investigated the abundance and composition of the meiobenthos at the arctic long-term deep-sea station HAUSGARTEN (79°N, 4°E) along a bathymetric transect (1200-5500 m water depth) over 5 consecutive years (from 2000 to 2004) in relation to changes in environmental conditions. Results showed high sediment-bound pigment concentrations (chlorophyll a and degradation products) ranging from 4.5 to 41.6 µg/cm 3 , and coinciding high meiobenthic densities ranging from 149 +/- 3 to 3409 +/- 525 ind/10cm 2 . Nematodes dominated the metazoan meiofaunal communities at every depth and time (85-99% of total meiofauna abundance), followed by harpacticoid copepods (0-4.6% of total meiofauna abundance). The expected pattern of gradually decreasing meiobenthic densities with increasing water depth was not confirmed. Instead, the bathymetric transect could be subdivided into a shallow area with equally high nematode and copepod densities from 1000 to 2000 in water depth (means: 2259 +/- 157 Nematoda/10cm 2 , and 50 +/- 4 Copepoda/10cm 2 ), and a deeper area from 3000 to 5500 m water depth with similar low nematode and copepod densities (means: 595 +/- 52 Nematoda/10cm 2 , and 11 +/- 2 Copepoda/10cm 2 ). Depth-related investigations on the meiobenthos at the HAUSGARTEN site showed a significant correlation between meiobenthos densities, microbial exo-enzymatic activity (esterase turnover) and phytodetrital food availability (chlorophyll a and phaeophytines). In time-series investigations, our data showed inter-annual variations in meiofauna abundance. However, no consistent relationship between nematode and copepod densities, and measures for organic matter input were found. |
format |
Article in Journal/Newspaper |
author |
Hoste, E. Vanhove, S. Schewe, I. Soltwedel, T. Vanreusel, A. |
spellingShingle |
Hoste, E. Vanhove, S. Schewe, I. Soltwedel, T. Vanreusel, A. Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
author_facet |
Hoste, E. Vanhove, S. Schewe, I. Soltwedel, T. Vanreusel, A. |
author_sort |
Hoste, E. |
title |
Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
title_short |
Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
title_full |
Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
title_fullStr |
Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
title_full_unstemmed |
Spatial and temporal variations in deep-sea meiofauna assemblages in the Marginal Ice Zone of the Arctic Ocean |
title_sort |
spatial and temporal variations in deep-sea meiofauna assemblages in the marginal ice zone of the arctic ocean |
publishDate |
2007 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210783 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Copepods |
genre_facet |
Arctic Arctic Ocean Copepods |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000244117700007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr.2006.09.007 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210783 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2006.09.007 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
54 |
container_issue |
1 |
container_start_page |
109 |
op_container_end_page |
129 |
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