Catálogo de datos del IEO
Keyword
Habitat characterisation
136 record(s)
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Bathymetry and seismic work on the coast of the island of Menorca (Baleares Islands)
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Study of different sectors of the Mediterranean margins of Andalusia to analyze the potential existing active tectonic structures, capable of generating geological risks either due to the generation of earthquakes, or secondarily due to the triggering of landslides and / or tsunamis.
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Mantenimiento de los colectoresprofundos de langosta, obtención de larvas filosomas y filmaciones submarinas con video cebado.
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Swath bathymetry, high definition seismic reflection and habitat mapping of the insular shelf of Menorca.
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Mantenimiento de los colectoresprofundos de langosta, obtención de larvas filosomas y filmaciones submarinas con video cebado.
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The campaign targets under INFUECO 1113, to carry on board the research vessel Angeles Alvariño, are the identification and mapping of habitats and characterization of biogenic benthic and demersal species. Specific objectives focus on the investigation of benthic Banks areas of 'Amanay' and 'El Banquete' by direct and visual methods. Specifically: · Extensive visual videogrammetry HD with sled towed "NEXUS". · Recognition with multibeam bathymetric probe.
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1.Estimar índices de abundancia de reclutas y juveniles de langosta. 2.Determinar la estructura demográfica y distribución batimétrica de los juveniles. 3.Estimar la abundancia y demografía de la langosta mediante técnicas de video sumergido con cebo. 4.Evaluar el efecto de la ampliación de la reserva marina mediante video sumergido y censos visuales. 5.Obtener muestras de ejemplares recién asentados talla inferior a 15 mm LC (Longitud de Cefalotórax) para estudios de genética de poblaciones y composición isotópica.
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Study of strategies to reduce discards and unwanted species: selectivity and survival in trawling in Cantabrian-Northwest zone.
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1. To obtain estimates of Nephrops burrows densities in the Gulf of Cádiz from a randomized isometric grid of UWTV stations spacing 4 nautical miles using the underwater images. 2. To define the Nephrops distribution in the Gulf of Cádiz 3. To obtain density estimates of megafauna species and the occurrence of trawl marks on the sea bed 4. To measure oceanographic variables using a sledge mounted CTD 5. To prospect circalittoral and bathyal areas witihout trawling activity 6. Sea bed morphological and backscatter analyses
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The objective of the INTEMARES A4 Canarias 1118 cruise is the evaluation by direct methods of the effect of the fishing pressure exerted fundamentally by fixed bottom gear on the distribution and quality of the benthic habitats RN2000. In addition, it will be analyzed: • Effect of fishing on benthic communities and habitats. • Evaluation of the relationship between the lost arts (phantom fishing) and the different levels of effort.5 • In case temporary trends are identified in the effort, and if the priority objectives have been covered, the relationship between temporal trends in effort and the quality of habitats.