Benthic community productivity in the Magellan Region and in the Weddell Sea
Our comparison of macrobenthic biomass, production and productivity of the Magellan region (14 - 349 m water depth) and the Weddell Sea (132 - 548 m water depth) is based on multi box corer samples collected in both areas. Biomass is slightly but not significantly lower in the Magellan region (7.3 g...
Published in: | Scientia Marina |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Consejo Superior de Investigaciones Científicas
1999
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Subjects: | |
Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/898 https://doi.org/10.3989/scimar.1999.63s1145 |
Summary: | Our comparison of macrobenthic biomass, production and productivity of the Magellan region (14 - 349 m water depth) and the Weddell Sea (132 - 548 m water depth) is based on multi box corer samples collected in both areas. Biomass is slightly but not significantly lower in the Magellan region (7.3 g C m-2) than in the Weddell Sea (12.0 g C m-2). Annual production and P/B ratio are higher in the Magellan region (5.1 g C m-2 y-1, 0.7 y-1) as compared to the Weddell Sea (3.6 g C m-2 y-1, 0.3 y-1). In the Magellan region, Mollusca, Polychaeta and Arthropoda dominate benthic production, whereas in the Weddell Sea Polychaeta, Porifera and Echinodermata are the most productive taxa. Nuestra comparación de biomasa, producción y productividad macrobentónica de la región de Magallanes (14 - 349 m) y del Mar de Weddell (132 - 548 m) se basa en las muestras recogidas con multi box-corer en ambas áreas. La biomasa es levemente, pero no significativamente, más baja en la región de Magallanes (7,3 g C m-2) que en el Mar de Weddell (12,0 g C m-2). La producción anual y la tasa P/B son más altas en la región de Magallanes (5,1 g C m-2 y-1, 0,7 y-1) comparadas con las del Mar de Weddell (3,6 g C m-2 y-1, 0,3 y-1). En la región de Magallanes, Mollusca, Polychaeta y Arthropoda dominan la producción bentónica, sin embargo los taxones más productivos en el Mar de Weddell son Polychaeta, Porifera y Echinodermata. |
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