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Abstract:

Coupling between pelagic and benthic systems has been described in numerous shallow water communities. In Potter Cove, where pelagic primary production is low (not only during the Antarctic winter but also during the summer), the rich benthic community present there must depend on other food sources than phytoplankton. Over a year-round period we determined the abundance of the different seston particles which constituted the stomach contents of the Antarctic ascidian Cnemidocarpa verrucosa (Lesson, 1830) at Potter Cove. Stomach repletion was highest in November and lowest in June. Ascidians took in a wide range of particles from large detritus (macroalgal debris and faecal pellets) to minute particles < 5 μm. Large detritus and minute particles together represent the main percentage of contents throughout the year (mean 91%). Diatoms were a low percentage (mean 4.5%). Unidentified flagellates, dinoflagellates and coccolithophorids were scarce, with mean values lower than 4%. Among diatoms benthic species were more abundant in summer and pelagic ones prevailed from March to November. Resuspension of benthic material due to wind mixing and the input of allochthonous particles by currents are important mechanisms that ensure food for ascidians and the community of suspension feeders in Potter Cove.

Registro:

Documento: Artículo
Título:Diet components in the food of Antarctic ascidians living at low levels of primary production
Autor:Tatián, M.; Sahade, R.; Esnal, G.B.
Filiación:Ecología Marina, Facultad de Ciencias Exactas, Univ. Nacional de Córdoba, Ave. Velez Sarsfield 299, 5000 Córdoba, Argentina
Depto. de Ciencias Biológicas, Fac. de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Benthos; Seston; South Shetland Islands; Southern Ocean; Stomach contents; benthic-pelagic coupling; diet; food supply; primary production; resuspension; Antarctica; King George Island; Potter Cove; South Shetland Islands; Ascidia; Ascidiacea; Bacillariophyta; Cnemidocarpa; Cnemidocarpa verrucosa; Dinophyceae; Haptophyceae; Invertebrata; Mastigophora (flagellates)
Año:2004
Volumen:16
Número:2
Página de inicio:123
Página de fin:128
DOI: http://dx.doi.org/10.1017/S0954102004001890
Título revista:Antarctic Science
Título revista abreviado:Antarct. Sci.
ISSN:09541020
CODEN:ANTSE
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_09541020_v16_n2_p123_Tatian.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v16_n2_p123_Tatian

Referencias:

  • Ahn, I.Y., Feeding ecology of the Antarctic lamellibranch Laternula elliptica (Laternulidae) in Marian Cove and vicinity, King George Island, during one austral summer (1997) Antarctic Communities: Species, Structure and Survival, pp. 142-151. , Battaglia, B., Valencia, J. & Walton, D.H.W., eds. Cambridge: Cambridge University Press
  • Ahn, I.Y., Chung, H., Kang, J.S., Kang, S.H., Diatom composition and biomass variability in nearshore waters of Maxwell Bay, Antarctica, during the 1992/1993 austral summer (1997) Polar Biology, 17, pp. 123-130
  • Alber, M., Valiela, I., Utilization of microbial organic aggregates by bay scallops, Argopecten irradians (Lamarck) (1996) Journal of Experimental Marine Biology and Ecology, 195, pp. 71-89
  • Barnes, D.K.A., Clarke, A., Seasonal variation in the feeding activity of four species of Antarctic bryozoan in relation to environmental factors (1994) Journal of Experimental Marine Biology and Ecology, 181, pp. 117-133
  • Cammen, L.M., The significance of microbial carbon in the nutrition of the deposit feeding polychaete Nereis succinea (1980) Marine Biology, 61, pp. 9-20
  • Clarke, A., Energy flow in the Southern Ocean food web (1985) Antarctic Nutrient Cycles and Food Webs, pp. 573-580. , Siegfried, W., Condy, P. & Laws, R., eds. Berlín: Springer
  • Clarke, A., Seasonality in the Antarctic marine environment (1988) Comparative Biochemistry and Physiology, 90 B, pp. 461-473
  • Clarke, A., Leakey, R.J.G., The seasonal cycle of phytoplankton, macronutrients and the microbial community in a nearshore Antarctic marine ecosystem (1996) Limnology and Oceanography, 41, pp. 1281-1294
  • Charles, F., Grèmare, A., Amouroux, J.M., Ingestion rates and absorption efficiencies of Abra ovata (Mollusca: Bivalvia) fed on macrophytobenthic detritus (1996) Estuarine Coastal and Shelf Science, 42, pp. 83-102
  • Dayton, P.K., Watson, D., Palmisano, A., Barry, J.P., Oliver, J.S., Rivera, D., Distribution patterns of benthic microalgal standing stock at McMurdo Sound, Antarctica (1986) Polar Biology, 6, pp. 207-213
  • Fisher, T.R., Metabolic maintenance costs of the suspension feeder Styela plicata (1977) Marine Biology, 41, pp. 361-369
  • Frenguelli, J., Orlando, H.A., Diatomeas y Silicoflagelados del Sector Antártico Sudamericano (1958) Contribuciones del Instituto Antártico Argentino, 5, pp. 15-191
  • Gili, J.M., Alvà, V., Pagès, F., Klöser, H., Arntz, W.E., Benthic diatoms as the major food source in the sub-Antarctic marine hydroid Silicularia rosea (1996) Polar Biology, 16, pp. 507-512
  • Gilbert, N.S., Primary production by benthic microalgae in nearshore marine sediments of Signy Island, Antarctica (1991) Polar Biology, 11, pp. 339-346
  • Goddard, C.K., Hoggett, A.K., Gut contents of the ascidian Pyura praeputialis: Endogenous and exogenous components (1982) Journal of Zoology London, 196, pp. 489-497
  • Klöser, H., Habitats and distribution patterns of benthic diatoms in Potter Cove (King George Island, Antarctica) and its vicinity (1998) Reports on Polar Research, 299, pp. 95-105. , Wiencke, C., Ferreyra, G., Arntz, W. & Rinaldi, C., eds. The Potter Cove coastal ecosystem, Antarctica
  • Klöser, H., Ferreyra, G., Schloss, I., Mercuri, G., Laturnus, F., Curtosi, A., Hydrography of Potter Cove, a small, fjord-like inlet on King George Island (South Shetlands) (1994) Estuarine Coastal and Shelf Science, 38, pp. 523-537
  • Kowalke, J., Filtration in Antarctic ascidians - Striking a balance (1999) Journal of Experimental Marine Biology and Ecology, 242, pp. 233-244
  • Medlin, L.K., Priddle, J., (1990) Polar Marine Diatoms, 216p. , Cambridge: British Antarctic Survey
  • Momo, F., Kowalke, J., Schloss, I., Mercuri, G., Ferreyra, G., The role of Laternula elliptica in the energy budget of Potter Cove (King George Island, Antarctica) (2002) Ecological Modelling, 155, pp. 43-51
  • Newell, R.C., Field, J.G., Griffiths, C.L., Energy balance and significance of micro-organisms in a kelp bed community (1982) Marine Ecology Progress Series, 8, pp. 103-113
  • Paine, R.T., Vadas, R.L., Calorific values of benthic marine algae and their postulated relation to invertebrate food preference (1969) Marine Biology, 4, pp. 79-86
  • Randløv, A., Riisgård, H.U., Efficiency of particle retention and filtaration rate in four species of ascidians (1979) Marine Ecology Progress Series, 1, pp. 55-59
  • Sahade, R., Tatián, M., Kowalke, J., Kühne, S., Esnal, G.B., Benthic faunal associations on soft substrates at Potter Cove, King George Island, Antarctica (1998) Polar Biology, 19, pp. 85-91
  • Schloss, I., Ferreyra, G.A., Primary production, light and vertical mixing in Potter Cove, a shallow bay in the maritime Antarctic (2002) Polar Biology, 25, pp. 41-48
  • Schloss, I., Ferreyra, G.A., Curtosi, A., Phytoplankton primary production in Potter Cove, King George Island (1998) Reports on Polar Research, 299, pp. 67-73. , Wiencke, C., Ferreyra, G., Arntz, W. & Rinaldi, C., eds. The Potter Cove coastal ecosystem, Antarctica
  • Schloss, I., Ferreyra, G., Mercuri, G., Kowalke, J., Potential food availability for benthic filter feeders in an Antarctic coastal shallow environment: A sediment trap study (1999) Scientia Marina, 63, pp. 99-111. , Arntz, W.E. & Rios, C., eds. Magellan-Antarctic: ecosystems that drifted appart
  • Seiderer, L.J., Newell, R.C., Relative significance of phytoplankton, bacteria and plant detritus as carbon and nitrogen resources for the kelp bed filter-feeder Choromytilus meridionalis (1985) Marine Ecology Progress Series, 22, pp. 127-139
  • Stuart, V., Field, J.G., Newell, R.C., Evidence for the absorption of kelp detritus by the ribbed mussel Aulacomia ater (Molina) using a new 51 Cr-labelled microsphere technique (1982) Marine Ecology Progress Series, 9, pp. 263-271
  • Stuart, V., Klumpp, D.W., Evidence for food-resource partitioning by kelp-bed filter-feeders (1984) Marine Ecology Progress Series, 16, pp. 27-37
  • Tatián, M., Sahade, R.J., Doucet, M.E., Esnal, G.B., Ascidians (Tunicata, Ascidiacea) of Potter Cove, South Shetland Islands, Antarctica (1998) Antarctic Science, 10, pp. 147-152
  • Tatián, M., Sahade, R.J., Kivatinitz, S.K., Esnal, G.B., Food availability and gut contents in the ascidian Cnemidocarpa verrucosa at Potter Cove, Antarctica (2002) Polar Biology, 25, pp. 58-64
  • Tenore, K.R., Cammen, L., Findlay, S.E.G., Phillips, N., Perspectives of research on detritus: Do factors controlling the availability of detritus to macroconsumers depend on its source? (1982) Journal of Marine Research, 40, pp. 473-490

Citas:

---------- APA ----------
Tatián, M., Sahade, R. & Esnal, G.B. (2004) . Diet components in the food of Antarctic ascidians living at low levels of primary production. Antarctic Science, 16(2), 123-128.
http://dx.doi.org/10.1017/S0954102004001890
---------- CHICAGO ----------
Tatián, M., Sahade, R., Esnal, G.B. "Diet components in the food of Antarctic ascidians living at low levels of primary production" . Antarctic Science 16, no. 2 (2004) : 123-128.
http://dx.doi.org/10.1017/S0954102004001890
---------- MLA ----------
Tatián, M., Sahade, R., Esnal, G.B. "Diet components in the food of Antarctic ascidians living at low levels of primary production" . Antarctic Science, vol. 16, no. 2, 2004, pp. 123-128.
http://dx.doi.org/10.1017/S0954102004001890
---------- VANCOUVER ----------
Tatián, M., Sahade, R., Esnal, G.B. Diet components in the food of Antarctic ascidians living at low levels of primary production. Antarct. Sci. 2004;16(2):123-128.
http://dx.doi.org/10.1017/S0954102004001890