Consulta: subjectFacets:"Shallow vent"
Registros recuperados: 2
Data/hora: 27/07/2024 02:39:47

Influences of geothermal sulfur bacteria on a tropical coastal food web
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pascal, Pierre-yves; Dubois, Stanislas; Goffette, Anais; Lepoint, Gilles.
The activity of the geothermal plant at Bouillante in Guadeloupe (French West Indies) releases thioautotrophic bacteria into the coastal environment. Fish counts reveal that fish abundance increases with higher availability of this bacterial resource. In order to evaluate the trophic role of these bacteria, isotopic compositions (C, N, S) of potential consumers were evaluated on transects at increasing distance from the source of bacteria. The 3 mobile fish species examined (Abudefduf saxatilis, Acanthurus bahianus, and Stegastes partitus) ingested and assimilated chemosynthetic bacteria. Similarly, the isotopic composition of the mobile sea urchin Diadema antillarum was different close to the discharge channel, suggesting a diet mainly composed of sulfur...
Tipo: Text
Palavras-chave: Shallow vent; Food web; Sulfur bacteria; Stable isotope.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00404/51511/52256.pdf

Meiofaunal communities and nematode diversity characterizing the Secca delle Fumose shallow vent area (Gulf of Naples, Italy)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Baldrighi, Elisa; Zeppilli, Daniela; Appolloni, Luca; Donnarumma, Luigia; Chianese, Elena; Russo, Giovanni Fulvio; Sandulli, Roberto.
Hydrothermal venting is rather prevalent in many marine areas around the world, and marine shallow vents are relatively abundant in the Mediterranean Sea, especially around Italy. However, investigations focusing on the characterization of meiofaunal organisms inhabiting shallow vent sediments are still scant compared to that on macrofauna. In the present study, we investigated the meiobenthic assemblages and nematode diversity inhabiting the Secca delle Fumose (SdF), a shallow water vent area located in the Gulf of Naples (Italy). In this area, characterized by a rapid change in the environmental conditions on a relative small spatial scale (i.e., 100 m), we selected four sampling sites: one diffusive emission site (H); one geyser site (G) and two...
Tipo: Text
Palavras-chave: Secca delle Fumose; Gulf of Naples; Shallow vent; Meiofauna; Nematode diversity.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00631/74343/73995.pdf