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Does sargassum contribute to meiofauna dispersal? The case of tardigrades and nematodes in the Mexican Caribbean

Por: Pérez Pech, Wilbert Andrés. Maestro [autor].
De Jesús Navarrete, Alberto [autor] | Vargas Espositos, Abel Abraham [autor].
Tipo de material: Artículo en línea Artículo en línea Tipo de contenido: texto Tipo de medio: computadora Tipo de portador: recurso en líneaTema(s): Meiofauna | Sargassum | Nemátodos marinos | Tardigrada | ZoogeografíaTema(s) en inglés: Meiobenthos | Sargassum | Marine nematodes | Tardigrades | ZoogeographyDescriptor(es) geográficos: Parque Nacional Arrecifes de Xcalak, Othón P. Blanco (Quintana Roo, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Marine Environmental Research. Volumen 195, artículo número 106349 (March 2024), páginas 1-9. --ISSN: 1879-0291Número de sistema: 9331Resumen:
Inglés

The knowledge of the long-distance dispersal mechanisms of meiofauna is still limited. Rafting is considered as the main mechanism of dispersal of the meiofauna. The recent events of the Sargassum spp. arrival in the Caribbean provides the opportunity to explore long distance mechanisms. Four samples of floating Sargassum spp. were collected from the water column in Xcalak, Quintana Roo, which arrived at the Reef lagoon and Mangrove fringe. A total of 425 organisms were present, 388 nematodes, 36 tardigrades, and a single acarus. Tardigrades were represented by three species, whereas nematodes were represented by 16 morphotypes. The population of both tardigrades and nematodes was composed of mature and juvenile specimens. One tardigrade was collected during their ecdysis process. Our results suggest that not only the nematodes, but also tardigrades and acari can reach the floating Sargassum spp., maintaining in the algae, growing, and reproducing, while they are transported in the sea. We can conclude that in the Caribbean Sea, the floating Sargassum spp. floating is a dispersal mechanism of nematodes and tardigrades.

Recurso en línea: https://doi.org/10.1016/j.marenvres.2024.106349
Lista(s) en las que aparece este ítem: Bibliografía DEAMP
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Disponible para usuarios de ECOSUR con su clave de acceso

The knowledge of the long-distance dispersal mechanisms of meiofauna is still limited. Rafting is considered as the main mechanism of dispersal of the meiofauna. The recent events of the Sargassum spp. arrival in the Caribbean provides the opportunity to explore long distance mechanisms. Four samples of floating Sargassum spp. were collected from the water column in Xcalak, Quintana Roo, which arrived at the Reef lagoon and Mangrove fringe. A total of 425 organisms were present, 388 nematodes, 36 tardigrades, and a single acarus. Tardigrades were represented by three species, whereas nematodes were represented by 16 morphotypes. The population of both tardigrades and nematodes was composed of mature and juvenile specimens. One tardigrade was collected during their ecdysis process. Our results suggest that not only the nematodes, but also tardigrades and acari can reach the floating Sargassum spp., maintaining in the algae, growing, and reproducing, while they are transported in the sea. We can conclude that in the Caribbean Sea, the floating Sargassum spp. floating is a dispersal mechanism of nematodes and tardigrades. eng

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