Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf
A dense assemblage of the brachiopod Magellania fragilis was sampled by trawl and underwater photography during the expedition ANT IX/3 (1991) of RV ‘Polarstern’ on the shelf of the Lazarev Sea, Antarctica. Mean abundance and biomass estimates for M. fragilis were 26.15 individuals m2 and 1.13 g AFD...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Cambridge University Press
1995
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Online Access: | http://nora.nerc.ac.uk/id/eprint/515440/ https://doi.org/10.1017/S0025315400038200 |
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ftnerc:oai:nora.nerc.ac.uk:515440 2023-05-15T13:49:33+02:00 Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf Brey, T. Peck, L.S. Gutt, J. Hain, S. Arntz, W.E. 1995 http://nora.nerc.ac.uk/id/eprint/515440/ https://doi.org/10.1017/S0025315400038200 unknown Cambridge University Press Brey, T.; Peck, L.S. orcid:0000-0003-3479-6791 Gutt, J.; Hain, S.; Arntz, W.E. 1995 Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf. Journal of the Marine Biological Association of the United Kingdom, 75 (4). 857-869. https://doi.org/10.1017/S0025315400038200 <https://doi.org/10.1017/S0025315400038200> Publication - Article PeerReviewed 1995 ftnerc https://doi.org/10.1017/S0025315400038200 2023-02-04T19:44:02Z A dense assemblage of the brachiopod Magellania fragilis was sampled by trawl and underwater photography during the expedition ANT IX/3 (1991) of RV ‘Polarstern’ on the shelf of the Lazarev Sea, Antarctica. Mean abundance and biomass estimates for M. fragilis were 26.15 individuals m2 and 1.13 g AFDM m2, respectively. Growth bands visible on the shell were interpreted as annual growth marks caused by the strong seasonality of food input to the benthos and were treated as size-at-age data. The von Bertalanffy growth function Lt (mm) = 51.67 (1 - e0020 (t +1.326))3.828 described these data best. The annual somatic P/B ratio was very low, 0.046 y1, and annual production amounted to 0.052 g AFDM m2 y1 at this particular site. These results indicate that M. fragilis is a comparatively slow-growing species with very low annual productivity. Article in Journal/Newspaper Antarc* Antarctic Antarctica Lazarev Sea Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Lazarev ENVELOPE(12.917,12.917,-69.967,-69.967) Lazarev Sea ENVELOPE(7.000,7.000,-68.000,-68.000) Journal of the Marine Biological Association of the United Kingdom 75 4 857 869 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
A dense assemblage of the brachiopod Magellania fragilis was sampled by trawl and underwater photography during the expedition ANT IX/3 (1991) of RV ‘Polarstern’ on the shelf of the Lazarev Sea, Antarctica. Mean abundance and biomass estimates for M. fragilis were 26.15 individuals m2 and 1.13 g AFDM m2, respectively. Growth bands visible on the shell were interpreted as annual growth marks caused by the strong seasonality of food input to the benthos and were treated as size-at-age data. The von Bertalanffy growth function Lt (mm) = 51.67 (1 - e0020 (t +1.326))3.828 described these data best. The annual somatic P/B ratio was very low, 0.046 y1, and annual production amounted to 0.052 g AFDM m2 y1 at this particular site. These results indicate that M. fragilis is a comparatively slow-growing species with very low annual productivity. |
format |
Article in Journal/Newspaper |
author |
Brey, T. Peck, L.S. Gutt, J. Hain, S. Arntz, W.E. |
spellingShingle |
Brey, T. Peck, L.S. Gutt, J. Hain, S. Arntz, W.E. Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
author_facet |
Brey, T. Peck, L.S. Gutt, J. Hain, S. Arntz, W.E. |
author_sort |
Brey, T. |
title |
Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
title_short |
Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
title_full |
Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
title_fullStr |
Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
title_full_unstemmed |
Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf |
title_sort |
population dynamics of magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the antarctic shelf |
publisher |
Cambridge University Press |
publishDate |
1995 |
url |
http://nora.nerc.ac.uk/id/eprint/515440/ https://doi.org/10.1017/S0025315400038200 |
long_lat |
ENVELOPE(12.917,12.917,-69.967,-69.967) ENVELOPE(7.000,7.000,-68.000,-68.000) |
geographic |
Antarctic The Antarctic Lazarev Lazarev Sea |
geographic_facet |
Antarctic The Antarctic Lazarev Lazarev Sea |
genre |
Antarc* Antarctic Antarctica Lazarev Sea |
genre_facet |
Antarc* Antarctic Antarctica Lazarev Sea |
op_relation |
Brey, T.; Peck, L.S. orcid:0000-0003-3479-6791 Gutt, J.; Hain, S.; Arntz, W.E. 1995 Population dynamics of Magellania fragilis, a brachiopod dominating a mixed-bottom macrobenthic assemblage on the Antarctic shelf. Journal of the Marine Biological Association of the United Kingdom, 75 (4). 857-869. https://doi.org/10.1017/S0025315400038200 <https://doi.org/10.1017/S0025315400038200> |
op_doi |
https://doi.org/10.1017/S0025315400038200 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
75 |
container_issue |
4 |
container_start_page |
857 |
op_container_end_page |
869 |
_version_ |
1766251610050134016 |