Is the Queen conch Strombus gigas (Mesogastropoda: Strombidae) a species with Allee effect?
The marine park of Xel-Há has a population of Strombus gigas which breeds in the area. We deter - mined the relationship between reproductive activity , conch density and environmental parameters. Samples were collected from February to December 2012, using the transect method, at four sites of Mari...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | México |
| Institución: | Centro de Investigación y de Estudios Avanzados del IPN |
| Repositorio: | Redalyc-CINVESTAV |
| OAI Identifier: | oai:redalyc.org:44932432019 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=44932432019 |
| Access Level: | acceso abierto |
| Palabra clave: | Biología Allee effect Sandy effect Strombus gigas reproductive behavior |
| Sumario: | The marine park of Xel-Há has a population of Strombus gigas which breeds in the area. We deter - mined the relationship between reproductive activity , conch density and environmental parameters. Samples were collected from February to December 2012, using the transect method, at four sites of Marine Park Xel-Ha, Quintana Roo, Mexico. Sediment samples were analyzed and classified using Folk & Ward’s method. Temperature, salinity and dissolved oxygen were also recorded. Density had a small correlation with sediment (Pearson r=0.29 with very coarse and r=0.26 with coarse sand), while mating and spawning had a correlation of r=0.54 and 0.62 with medium sand, respectively. Density was high in the four sites and was not associated with mating and spawning (r=0.08 and 0.03, respectively). For reproduction, S. gigas requires specific substrate conditions ( sandy effect ) and not just a density of 56 Conch Ha –1 (A llee effect ). |
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