Influência da contaminação bacteriológica sobre a resistência do mexilhao Perna Perna (LINNAEUS, 1758) à exposiçao ao ar 1
Most bivalves commercialized in Brazil are still harvested from fisheries activities. The chemical and bacteriological contamination of the sea environment, besides leading to lethal effects in bivalves, can harm their resistance to withstand environmental factors. This paper aimed at determining th...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | Brasil |
| Institución: | Universidade Federal do Ceará (UFC) |
| Repositorio: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.ufc.br:riufc/54230 |
| Acceso en línea: | http://www.repositorio.ufc.br/handle/riufc/54230 |
| Access Level: | acceso abierto |
| Palabra clave: | Moluscos Especie-mexilhão Perna perna Ar-exposição |
| Sumario: | Most bivalves commercialized in Brazil are still harvested from fisheries activities. The chemical and bacteriological contamination of the sea environment, besides leading to lethal effects in bivalves, can harm their resistance to withstand environmental factors. This paper aimed at determining the influence of bacteriological contamination to air exposure resistance of mussels Perna perna. Results provide a contribution to a better knowledge about the biology of Perna perna, suggesting improved handling practices either for animals in natural beds under commercial farming. The study was developed in Urubuqueçaba Island, a bacteriologically polluted site, and in Guaraú Beach, a site free of bacterial contamination. To determine air exposure resistance, trials were conducted under two different temperatures, in December 2000 and in June 2001. TM 50 was determined, as well as the number of dead animals in each trial after exposure time. Results indicate that bacteriological contamination probably affects the resistance of Perna perna to air exposure. Mussels from Urubuqueçaba presented smaller resistance to air exposure than mussels from Guaraú |
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