Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/58383
Título: First Macro-Colonizers and Survivors Around Tagoro Submarine Volcano, Canary Islands, Spain
Autores/as: Sotomayor-Garcia, Ana
Rueda, Jose L.
Sanchez-Guillamon, Olga
Urra, Javier
Vazquez, Juan T.
Palomino, Desiree
Fernandez-Salas, Luis M.
Lopez-Gonzalez, Nieves
Gonzalez-Porto, Marcos
Magdalena Santana-Casiano, J. 
Gonzalez-Davila, Melchor 
Presas-Navarro, Carmen
Fraile-Nuez, E. 
Clasificación UNESCO: 251002 Oceanografía química
Palabras clave: Hydrothermal vents
Submarine volcano
Frst colonizers
Benthos
Tagoro, et al.
Fecha de publicación: 2019
Proyectos: "Volcanic Eruption At El Hierro Island, Sensitivity And Recovery Of The Marine Ecosystem" 
Publicación seriada: Geosciences (Switzerland) 
Resumen: Tagoro, the youngest submarine volcano of the Canary Islands, erupted in 2011 South of El Hierro Island. Pre-existing sea floor and inhabiting biological communities were buried by the newly erupted material, promoting the appearance of new habitats. The present study pursues to describe the first metazoans colonizing different new habitats formed during the eruption and to create precedent on this field. Through dredge and remote operated vehicle samplings, five main habitat types have been detected based on the substrate type and burial status after the eruption. Inside the Tagoro volcanic complex (TVC), two new habitats are located in and around the summit and main craters-hydrothermal vents with bacterial mats and sulfurous-like fields mainly colonized by small hydrozoan colonies. Two other habitats are located downslope the TVC; new hard substrate and new mixed substrate, holding the highest biodiversity of the TVC, especially at the mixed bottoms with annelids (Chloeia cf. venusta), arthropods (Monodaeus couchii and Alpheus sp.), cnidarians (Sertularella cf. tenella), and molluscs (Neopycnodonte cochlear) as the first colonizers. An impact evaluation was done comparing the communities of those habitats with the complex and well-established community described at the stable hard substrate outside the TVC, which is constituted of highly abundant hydrozoans (Aglaophenia sp.), antipatharians (Stichopates setacea and Antipathes furcata), and colonizing epibionts (e.g., Neopycnodonte cochlear). Three years after the eruption, species numbers at Tagoro were still low compared to those occurring at similar depths outside the TVC. The first dominant species at the TVC included a large proportion of common suspension feeders of the circalittoral and bathyal hard bottoms of the area, which could have exploited the uncolonized hard bottoms and the post eruptive fertilization of water masses.
URI: http://hdl.handle.net/10553/58383
ISSN: 2076-3263
DOI: 10.3390/geosciences9010052
Fuente: Geosciences [ISSN 2076-3263], v. 9 (52), p. 1-21
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