Effects of burrowing macrofauna on meiofauna community structure
A laboratory experiment was carried out aiming to verify meiofauna community’s responses to disturbance caused by the macroinfaunal polychaete Laeonereis acuta Treadwell 1923 regarding both vertical distribution patterns in sediments, collected from an estuarine region of Patos Lagoon, and predation...
| Autores: | , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | Brasil |
| Recursos: | Universidade Federal do Rio Grande (FURG) |
| Repositorio: | Repositório Institucional da FURG (RI FURG) |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.furg.br:1/3021 |
| Acesso em linha: | http://repositorio.furg.br/handle/1/3021 |
| Access Level: | acceso abierto |
| Palavra-chave: | Vertical distribution Laeonereis acuta Meiofauna Predation Polychaete Distribuição vertical Predação Poliqueta |
| Resumo: | A laboratory experiment was carried out aiming to verify meiofauna community’s responses to disturbance caused by the macroinfaunal polychaete Laeonereis acuta Treadwell 1923 regarding both vertical distribution patterns in sediments, collected from an estuarine region of Patos Lagoon, and predation. Samples were sliced in 6 vertical layers: 0-1, 1-2, 2-4, 4-6, 6-8 and 8-10 cm deep. From the analysis of variance and analysis of similarity and clusters it could be seen that L. acuta changed the sedimentary environment, probably irrigating deeper layers and increasing oxygen availability, and hence increasing the abundance of meiofauna organisms in this microhabitat. Predation was not registered for any meiofauna taxa. |
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