|
|
|
|
|
Hernandez-avila, Ivan; Cambon-bonavita, Marie-anne; Pradillon, Florence. |
Alvinocaridid shrimps are endemic species inhabiting hydrothermal vents and/or cold seeps. Although indirect evidences (genetic and lipid markers) suggest that their larval stages disperse widely and support large scale connectivity, larval life and mechanisms underlying dispersal are unknown in alvinocaridids. Here we provide for the first time detailed descriptions of the first larval stage (zoea I) of four alvinocaridid species: Rimicaris exoculata and Mirocaris fortunata from the Mid-Atlantic Ridge, Alvinocaris muricola from the Congo Basin and Nautilocaris saintlaurentae from the Western Pacific. The larvae were obtained from onboard hatching of brooding females (either at atmospheric pressure or at habitat pressure in hyperbaric chambers) and from... |
Tipo: Text |
|
Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00309/42011/41295.pdf |
| |
|
|
Gomez-maduro, Maria Cecilia; Hernandez-avila, Ivan. |
Echinoderms are relevant in the structure of marine benthic assemblages, both due their diversity and their ecological niche. However, studies related with occurrence, abundance and patterns of distribution of echinoderms in Venezuela are still scarce. In the present study we describe the echinoderms in shallow-waters habitats (corals patches, Thalassia beds, sandy bottom, rocky subtidal shore, and mouth of river) at Tunantal bay, Golfo de Cariaco, Venezuela, an area that face threats related with the increase of urban development. Samples were performed during September-October 2010 and February-April 2011, using quantitative (1 m(2) plots) and qualitative diving observations. Measurements include density, number of species, evenness, Shannon diversity... |
Tipo: Text |
Palavras-chave: Caribbean; Shallow environments; Echinometra; Assemblage; Diversity. |
Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00439/55011/56440.pdf |
| |
|
|
|