Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem
A rich benthic filter-feeding community is present at Potter Cove, South Shetland, in spite of some usually unfavorable conditions affecting their feeding ecology, such as low phytoplankton production in summer and high sedimentation rates. However, organic material that could fuel the benthic syste...
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2008
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n4_p509_Tatian http://hdl.handle.net/20.500.12110/paper_07224060_v31_n4_p509_Tatian |
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paper:paper_07224060_v31_n4_p509_Tatian2023-06-08T15:43:34Z Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem Fuentes, Verónica Lorena Esnal, Graciela Beatriz Antarctica Assimilation Cnemidocarpa verrucosa Coupling Filter-feeder Laternula elliptica Particle flux Pyura setosa benthos coastal zone community dynamics estimation method feeding ecology filter feeder food availability phytoplankton primary production sedimentation Antarctica King George Island Potter Cove South Shetland Islands Ascidia Ascidiacea Bivalvia Cnemidocarpa verrucosa Laternula elliptica Pyura setosa A rich benthic filter-feeding community is present at Potter Cove, South Shetland, in spite of some usually unfavorable conditions affecting their feeding ecology, such as low phytoplankton production in summer and high sedimentation rates. However, organic material that could fuel the benthic system, such as macroalgal fragments, was detected in the water-bottom interface year-round. Mean assimilation efficiency of several sizes of macroalgal particles under different inorganic particulate percentages varied between 26-51% in a clam, and 26-72% in two ascidian species. Estimated particle flux (feces) produced by ascidians varied according to species and abundance. The C:N ratio of feces was relatively high. Plasticity and profit from the available food sources contribute to the success of the filter-feeding community in Potter Cove. © 2007 Springer-Verlag. Fil:Fuentes, V.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Esnal, G.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n4_p509_Tatian http://hdl.handle.net/20.500.12110/paper_07224060_v31_n4_p509_Tatian |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Antarctica Assimilation Cnemidocarpa verrucosa Coupling Filter-feeder Laternula elliptica Particle flux Pyura setosa benthos coastal zone community dynamics estimation method feeding ecology filter feeder food availability phytoplankton primary production sedimentation Antarctica King George Island Potter Cove South Shetland Islands Ascidia Ascidiacea Bivalvia Cnemidocarpa verrucosa Laternula elliptica Pyura setosa |
| spellingShingle |
Antarctica Assimilation Cnemidocarpa verrucosa Coupling Filter-feeder Laternula elliptica Particle flux Pyura setosa benthos coastal zone community dynamics estimation method feeding ecology filter feeder food availability phytoplankton primary production sedimentation Antarctica King George Island Potter Cove South Shetland Islands Ascidia Ascidiacea Bivalvia Cnemidocarpa verrucosa Laternula elliptica Pyura setosa Fuentes, Verónica Lorena Esnal, Graciela Beatriz Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| topic_facet |
Antarctica Assimilation Cnemidocarpa verrucosa Coupling Filter-feeder Laternula elliptica Particle flux Pyura setosa benthos coastal zone community dynamics estimation method feeding ecology filter feeder food availability phytoplankton primary production sedimentation Antarctica King George Island Potter Cove South Shetland Islands Ascidia Ascidiacea Bivalvia Cnemidocarpa verrucosa Laternula elliptica Pyura setosa |
| description |
A rich benthic filter-feeding community is present at Potter Cove, South Shetland, in spite of some usually unfavorable conditions affecting their feeding ecology, such as low phytoplankton production in summer and high sedimentation rates. However, organic material that could fuel the benthic system, such as macroalgal fragments, was detected in the water-bottom interface year-round. Mean assimilation efficiency of several sizes of macroalgal particles under different inorganic particulate percentages varied between 26-51% in a clam, and 26-72% in two ascidian species. Estimated particle flux (feces) produced by ascidians varied according to species and abundance. The C:N ratio of feces was relatively high. Plasticity and profit from the available food sources contribute to the success of the filter-feeding community in Potter Cove. © 2007 Springer-Verlag. |
| author |
Fuentes, Verónica Lorena Esnal, Graciela Beatriz |
| author_facet |
Fuentes, Verónica Lorena Esnal, Graciela Beatriz |
| author_sort |
Fuentes, Verónica Lorena |
| title |
Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| title_short |
Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| title_full |
Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| title_fullStr |
Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| title_full_unstemmed |
Feeding ecology of benthic filter-feeders at Potter Cove, an Antarctic coastal ecosystem |
| title_sort |
feeding ecology of benthic filter-feeders at potter cove, an antarctic coastal ecosystem |
| publishDate |
2008 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v31_n4_p509_Tatian http://hdl.handle.net/20.500.12110/paper_07224060_v31_n4_p509_Tatian |
| work_keys_str_mv |
AT fuentesveronicalorena feedingecologyofbenthicfilterfeedersatpottercoveanantarcticcoastalecosystem AT esnalgracielabeatriz feedingecologyofbenthicfilterfeedersatpottercoveanantarcticcoastalecosystem |
| _version_ |
1768544415163351040 |