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Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches?

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Abstract
The role of a dominant macrobenthic polychaete, Scolelepis squamata, in the colonisation of defaunated tropical sediments by sandy-beach nematodes was investigated and compared with a previous colonisation experiment carried out on a temperate sandy beach. Experimental cylinders, equipped with lateral windows allowing infaunal colonisation, were filled with defaunated sediment containing two treatments, with and without S. squamata. These cylinders were inserted into microcosms containing sediment with indigenous meiofauna collected from the field. The treatments were incubated in the laboratory at ambient temperature and salinity for 7, 14 and 21 days. The nematode assemblages in both treatments did not differ in composition between treatments and from the natural assemblages, suggesting that all the species were equally able to colonise the experimental cores. The presence of the polychaete did not affect the development of the nematode community composition, in contrast to the results from a previous temperate-beach experiment. However, our results did not indicate whether the difference in results was caused by the different behaviour of the polychaete specimens, or by the different composition and response of the present nematode community.
Keywords
meiofauna, POLYCHAETA, Scolelepis squamata, Fazenda Beach, microcosm experiment, biological interactions, BELGIAN CONTINENTAL-SHELF, NORTH-SEA, SOUTHERN BIGHT, ESTUARINE NEMATODES, COMMUNITY STRUCTURE, SUBTIDAL SANDBANKS, MARINE NEMATODES, ASSEMBLAGES, MACROFAUNA

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Citation

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Chicago
Maria, Tatiana, Andre Esteves, Jan Vanaverbeke, and Ann Vanreusel. 2013. “Is Nematode Colonisation in the Presence of Scolelepis in Tropical Sandy-beach Sediment Similar to the Colonisation Process in Temperate Sandy Beaches?” Brazilian Journal of Biology 73 (1): 19–28.
APA
Maria, T., Esteves, A., Vanaverbeke, J., & Vanreusel, A. (2013). Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches? BRAZILIAN JOURNAL OF BIOLOGY, 73(1), 19–28.
Vancouver
1.
Maria T, Esteves A, Vanaverbeke J, Vanreusel A. Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches? BRAZILIAN JOURNAL OF BIOLOGY. 2013;73(1):19–28.
MLA
Maria, Tatiana, Andre Esteves, Jan Vanaverbeke, et al. “Is Nematode Colonisation in the Presence of Scolelepis in Tropical Sandy-beach Sediment Similar to the Colonisation Process in Temperate Sandy Beaches?” BRAZILIAN JOURNAL OF BIOLOGY 73.1 (2013): 19–28. Print.
@article{4418412,
  abstract     = {The role of a dominant macrobenthic polychaete, Scolelepis squamata, in the colonisation of defaunated tropical sediments by sandy-beach nematodes was investigated and compared with a previous colonisation experiment carried out on a temperate sandy beach. Experimental cylinders, equipped with lateral windows allowing infaunal colonisation, were filled with defaunated sediment containing two treatments, with and without S. squamata. These cylinders were inserted into microcosms containing sediment with indigenous meiofauna collected from the field. The treatments were incubated in the laboratory at ambient temperature and salinity for 7, 14 and 21 days. The nematode assemblages in both treatments did not differ in composition between treatments and from the natural assemblages, suggesting that all the species were equally able to colonise the experimental cores. The presence of the polychaete did not affect the development of the nematode community composition, in contrast to the results from a previous temperate-beach experiment. However, our results did not indicate whether the difference in results was caused by the different behaviour of the polychaete specimens, or by the different composition and response of the present nematode community.},
  author       = {Maria, Tatiana and Esteves, Andre and Vanaverbeke, Jan and Vanreusel, Ann},
  issn         = {1519-6984},
  journal      = {BRAZILIAN JOURNAL OF BIOLOGY},
  keyword      = {meiofauna,POLYCHAETA,Scolelepis squamata,Fazenda Beach,microcosm experiment,biological interactions,BELGIAN CONTINENTAL-SHELF,NORTH-SEA,SOUTHERN BIGHT,ESTUARINE NEMATODES,COMMUNITY STRUCTURE,SUBTIDAL SANDBANKS,MARINE NEMATODES,ASSEMBLAGES,MACROFAUNA},
  language     = {eng},
  number       = {1},
  pages        = {19--28},
  title        = {Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches?},
  volume       = {73},
  year         = {2013},
}

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