The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment
The metazoan meiobenthos was investigated in an Antarctic coastal sediment (Factory Cove, Signy Island, Antarctica). The fine sands contained much higher abundances compared to major sublittoral sediments worldwide. Classified second after Narrangansett Bay (North Atlantic) they reached numbers of 1...
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Cambridge Journals
1998
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ftnerc:oai:nora.nerc.ac.uk:504997 2023-05-15T13:48:08+02:00 The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment Vanhove, S. Lee, H.J. Beghyn, M. Gansbeke, D. Van Brockington, S. Vincx, M. 1998 http://nora.nerc.ac.uk/id/eprint/504997/ https://doi.org/10.1017/S0025315400041539 unknown Cambridge Journals Vanhove, S.; Lee, H.J.; Beghyn, M.; Gansbeke, D. Van; Brockington, S.; Vincx, M. 1998 The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment. Journal of the Marine Biological Association of the United Kingdom, 78 (02). 411-434. https://doi.org/10.1017/S0025315400041539 <https://doi.org/10.1017/S0025315400041539> Publication - Article PeerReviewed 1998 ftnerc https://doi.org/10.1017/S0025315400041539 2023-02-04T19:38:42Z The metazoan meiobenthos was investigated in an Antarctic coastal sediment (Factory Cove, Signy Island, Antarctica). The fine sands contained much higher abundances compared to major sublittoral sediments worldwide. Classified second after Narrangansett Bay (North Atlantic) they reached numbers of 13 × 106 ind m-2. The meiofauna was highly abundant in the surface layers, but densities decreased sharply below 2 cm. Vertical profiles mirrored steep gradients of microbiota, chloropigments and organic matter and were coincident with chemical stratification. Spatial patchiness manifested especially in the surface layer. Nematodes dominated (up to 90%), and Aponema, Chromctdorita, Diplolaimella, Daptonema, Microlaimus and Neochromadora constituted almost the entire community. Overall, the nematode fauna showed a strong similarity with fine sand communities elsewhere. The dominant trophic strategies were epistrarum and non-selective deposit feeding, but the applied classification for feeding guild structure of the nematodes of Factory Cove is discussed. High standing stock, low diversity and shallow depth distribution may have occurred because of the high nutritive (chlorophyll exceeded lOOOmgm-2 and constituted almost 50% of the organic pool) and reductive character of the benthic environment. These observations must have originated from the substantial input of fresh organic matter from phytoplankton and microphytobenthic production, typical for an Antarctic coastal ecosystem during the austral summer. Article in Journal/Newspaper Antarc* Antarctic Antarctica North Atlantic Signy Island Natural Environment Research Council: NERC Open Research Archive Antarctic Austral Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Factory Cove ENVELOPE(-45.597,-45.597,-60.708,-60.708) Journal of the Marine Biological Association of the United Kingdom 78 2 411 434 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The metazoan meiobenthos was investigated in an Antarctic coastal sediment (Factory Cove, Signy Island, Antarctica). The fine sands contained much higher abundances compared to major sublittoral sediments worldwide. Classified second after Narrangansett Bay (North Atlantic) they reached numbers of 13 × 106 ind m-2. The meiofauna was highly abundant in the surface layers, but densities decreased sharply below 2 cm. Vertical profiles mirrored steep gradients of microbiota, chloropigments and organic matter and were coincident with chemical stratification. Spatial patchiness manifested especially in the surface layer. Nematodes dominated (up to 90%), and Aponema, Chromctdorita, Diplolaimella, Daptonema, Microlaimus and Neochromadora constituted almost the entire community. Overall, the nematode fauna showed a strong similarity with fine sand communities elsewhere. The dominant trophic strategies were epistrarum and non-selective deposit feeding, but the applied classification for feeding guild structure of the nematodes of Factory Cove is discussed. High standing stock, low diversity and shallow depth distribution may have occurred because of the high nutritive (chlorophyll exceeded lOOOmgm-2 and constituted almost 50% of the organic pool) and reductive character of the benthic environment. These observations must have originated from the substantial input of fresh organic matter from phytoplankton and microphytobenthic production, typical for an Antarctic coastal ecosystem during the austral summer. |
format |
Article in Journal/Newspaper |
author |
Vanhove, S. Lee, H.J. Beghyn, M. Gansbeke, D. Van Brockington, S. Vincx, M. |
spellingShingle |
Vanhove, S. Lee, H.J. Beghyn, M. Gansbeke, D. Van Brockington, S. Vincx, M. The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
author_facet |
Vanhove, S. Lee, H.J. Beghyn, M. Gansbeke, D. Van Brockington, S. Vincx, M. |
author_sort |
Vanhove, S. |
title |
The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
title_short |
The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
title_full |
The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
title_fullStr |
The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
title_full_unstemmed |
The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment |
title_sort |
metazoan meiofauna in its biogeochemical environment: the case of an antarctic coastal sediment |
publisher |
Cambridge Journals |
publishDate |
1998 |
url |
http://nora.nerc.ac.uk/id/eprint/504997/ https://doi.org/10.1017/S0025315400041539 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-45.597,-45.597,-60.708,-60.708) |
geographic |
Antarctic Austral Signy Island Factory Cove |
geographic_facet |
Antarctic Austral Signy Island Factory Cove |
genre |
Antarc* Antarctic Antarctica North Atlantic Signy Island |
genre_facet |
Antarc* Antarctic Antarctica North Atlantic Signy Island |
op_relation |
Vanhove, S.; Lee, H.J.; Beghyn, M.; Gansbeke, D. Van; Brockington, S.; Vincx, M. 1998 The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment. Journal of the Marine Biological Association of the United Kingdom, 78 (02). 411-434. https://doi.org/10.1017/S0025315400041539 <https://doi.org/10.1017/S0025315400041539> |
op_doi |
https://doi.org/10.1017/S0025315400041539 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
78 |
container_issue |
2 |
container_start_page |
411 |
op_container_end_page |
434 |
_version_ |
1766248743509688320 |