Meiofauna communities from the Straits of Magellan and the Beagle Channel
Meiofauna from 20 stations (ranging between 8 and 550 m) in the Magellan Straits and the Beagle Channel revealed 28 small sized taxa of higher categories including the temporary meiofauna. Nematoda, Copepoda Harpacticoidea and Polychaeta occurred in all samples; Turbellaria, Bivalvia, Kinorhyncha an...
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Language: | English |
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1999
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ftvliz:oai:oma.vliz.be:691 2023-05-15T13:40:23+02:00 Meiofauna communities from the Straits of Magellan and the Beagle Channel Chen, G.T. Herman, R.L. Vincx, M. 1999 application/pdf https://www.vliz.be/imisdocs/publications/256154.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000085828800014 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3989/scimar.1999.63s1123 https://www.vliz.be/imisdocs/publications/256154.pdf info:eu-repo/semantics/openAccess %3Ci%3ESci.+Mar.+%28Barc.%29+63%28S1%29%3C%2Fi%3E%3A+123-132.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3989%2Fscimar.1999.63s1123%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3989%2Fscimar.1999.63s1123%3C%2Fa%3E Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW Argentina Tierra del Fuego Beagle Channel Chile Magellan Straits info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1999 ftvliz https://doi.org/10.3989/scimar.1999.63s1123 2022-05-01T08:12:14Z Meiofauna from 20 stations (ranging between 8 and 550 m) in the Magellan Straits and the Beagle Channel revealed 28 small sized taxa of higher categories including the temporary meiofauna. Nematoda, Copepoda Harpacticoidea and Polychaeta occurred in all samples; Turbellaria, Bivalvia, Kinorhyncha and Ostracoda were regularly present. Nematodes represented between 68% and 94% of the meiofauna at each station, followed by the copepods (2.3% to 14.5%) and polychaetes (1.1% to 11.5%). Maximal total density, 9700 individuals 10 cm(-2), was found in the surroundings of Picton Island, while the mean abundance per station was 3374 individuals 10 cm(-2). The vertical pattern within the sediment showed that 87% of meiofauna components concentrated in the upper 0-5 cm sediment layers and 13% in the lower (>5 cm) layers. More than 95% of copepods, as well as the temporary meiofauna occurred in the top 5 cm layers. The proportion of nematodes and copepods shows opposite trends in the vertical distribution. Multivariate analysis using the total density and the 10 'true' meiofauna taxa densities discriminates between communities in the Straits of Magellan and the Beagle Channel area. Meiofaunal density was much higher in the Beagle Channel, but the diversity was lower than that in the Straits of Magellan. The Southern Magellan meiofauna communities are compared with those found at the Antarctic Peninsula and in the Weddell Sea (high Antarctic). It is considered that hydrodynamic features (tidal currents with strong winds), geographical characteristics, together with sediment composition are the key parameters structuring the meiofauna community in the Straits of Magellan and in the Beagle Channel. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Weddell Sea Copepods Tierra del Fuego Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Antarctic Peninsula Argentina The Antarctic Weddell Weddell Sea Scientia Marina 63 S1 123 132 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW Argentina Tierra del Fuego Beagle Channel Chile Magellan Straits |
spellingShingle |
Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW Argentina Tierra del Fuego Beagle Channel Chile Magellan Straits Chen, G.T. Herman, R.L. Vincx, M. Meiofauna communities from the Straits of Magellan and the Beagle Channel |
topic_facet |
Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW Argentina Tierra del Fuego Beagle Channel Chile Magellan Straits |
description |
Meiofauna from 20 stations (ranging between 8 and 550 m) in the Magellan Straits and the Beagle Channel revealed 28 small sized taxa of higher categories including the temporary meiofauna. Nematoda, Copepoda Harpacticoidea and Polychaeta occurred in all samples; Turbellaria, Bivalvia, Kinorhyncha and Ostracoda were regularly present. Nematodes represented between 68% and 94% of the meiofauna at each station, followed by the copepods (2.3% to 14.5%) and polychaetes (1.1% to 11.5%). Maximal total density, 9700 individuals 10 cm(-2), was found in the surroundings of Picton Island, while the mean abundance per station was 3374 individuals 10 cm(-2). The vertical pattern within the sediment showed that 87% of meiofauna components concentrated in the upper 0-5 cm sediment layers and 13% in the lower (>5 cm) layers. More than 95% of copepods, as well as the temporary meiofauna occurred in the top 5 cm layers. The proportion of nematodes and copepods shows opposite trends in the vertical distribution. Multivariate analysis using the total density and the 10 'true' meiofauna taxa densities discriminates between communities in the Straits of Magellan and the Beagle Channel area. Meiofaunal density was much higher in the Beagle Channel, but the diversity was lower than that in the Straits of Magellan. The Southern Magellan meiofauna communities are compared with those found at the Antarctic Peninsula and in the Weddell Sea (high Antarctic). It is considered that hydrodynamic features (tidal currents with strong winds), geographical characteristics, together with sediment composition are the key parameters structuring the meiofauna community in the Straits of Magellan and in the Beagle Channel. |
format |
Article in Journal/Newspaper |
author |
Chen, G.T. Herman, R.L. Vincx, M. |
author_facet |
Chen, G.T. Herman, R.L. Vincx, M. |
author_sort |
Chen, G.T. |
title |
Meiofauna communities from the Straits of Magellan and the Beagle Channel |
title_short |
Meiofauna communities from the Straits of Magellan and the Beagle Channel |
title_full |
Meiofauna communities from the Straits of Magellan and the Beagle Channel |
title_fullStr |
Meiofauna communities from the Straits of Magellan and the Beagle Channel |
title_full_unstemmed |
Meiofauna communities from the Straits of Magellan and the Beagle Channel |
title_sort |
meiofauna communities from the straits of magellan and the beagle channel |
publishDate |
1999 |
url |
https://www.vliz.be/imisdocs/publications/256154.pdf |
geographic |
Antarctic Antarctic Peninsula Argentina The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Argentina The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Weddell Sea Copepods Tierra del Fuego |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Weddell Sea Copepods Tierra del Fuego |
op_source |
%3Ci%3ESci.+Mar.+%28Barc.%29+63%28S1%29%3C%2Fi%3E%3A+123-132.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.3989%2Fscimar.1999.63s1123%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.3989%2Fscimar.1999.63s1123%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000085828800014 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.3989/scimar.1999.63s1123 https://www.vliz.be/imisdocs/publications/256154.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3989/scimar.1999.63s1123 |
container_title |
Scientia Marina |
container_volume |
63 |
container_issue |
S1 |
container_start_page |
123 |
op_container_end_page |
132 |
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1766133032772698112 |