Relaciones ambientales, pesqueras y bentónicas en el campo de volcanes de fango del margen español del Golfo de Cádiz
Authors
González-García, E. (Emilio); Rueda, J.L. (José Luis); Urra, J. (Javier); López-González, N. (Nieves); Palomino, D. (Desirée); Fernández-Salas, L.M. (Luis Miguel); Vázquez, J.T. (Juan Tomás); Bruque-Carmona, G. (Gerardo); Farias, C. (Carlos); Sánchez-Leal, R.F. (Ricardo Félix); Díaz-del-Río-Español, V. (Víctor)Editor/s
Díaz-del-Río-Español, V. (Víctor); Bárcenas, Patricia; Fernández-Salas, L.M. (Luis Miguel); López-González, N. (Nieves); Palomino, D. (Desirée); Rueda, J.L. (José Luis); Sánchez-Guillamón, O. (Olga); Vázquez, J.T. (Juan Tomás)Date
2015-09Type
bookPartKeywords
habitatssediment
mud volcanoes
near-bottom current
fisheries
Abstract
The Gulf of Cadiz is located in the boundary of two lithospheric plates, this tectonic activity
promote fluid rich hydrocarbon emissions from subsurface reservoirs and the formation of several
mud volcanoes. The seabed and sedimentological heterogeneity, the complex oceanographic
circulation, and the low fishing activity in certain areas may promote high biodiversity and complex
habitats (habitat 1170 and 1180, Natura 2000). Environmental variables (fishing activity, substrate
types, near bottom currents) and fauna collected with beam-trawl have been compared for several
mud volcanoes and adjacent bottoms in order to understand the spatial distribution of both habitats
and environmental/anthropogenic variables. The faunistic samples yielded high abundances,
biomass and species richness in Gazul, Pipoca and Chica but low ones in Anastasya. In relation to
environmental variables and fisheries activity, there is a strong correlation with the substrate type,
depth, salinity and ...
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