Catálogo de datos del IEO
Keyword
Habitat characterisation
136 record(s)
Type of resources
Categories
Topics
INSPIRE themes
Keywords
Contact for the resource
Provided by
Years
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Status
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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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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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Bathymetry and seismic work on the coast of the island of Menorca (Baleares Islands)
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Evaluation of the impact and interaction of gill art aimed at (Scratch) with the bottom, with the benthic species and with the habitats
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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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- To obtain estimates of Nephrops densities through underwater videos with photogrammetric sled. - To obtain estimates of Nephrops burrows dendity. - To delimit the distribution of Nephrops in the Gulf of Cádiz. - To obtain estimates of bento-demersal macrofauna density present in the Nephrops fishing ground. - To calibrate bentho-demersal macrofauna observed in the underwater videos and those obtained in the beam trawl. - To prospect non-draggable areas of the circalitoral and batial to know the state of the bottom and the presence of commercial resources. - To gather complementary information on the action of the trawl gear in the seabed. - Oceanographic data collection. - Morphological analysis and acoustic response of the substrate through data acquisition bathymetry and reflectivity, as well as very high resolution seismic profiles of areas already prospected or pending to prospect. - To collect of sediment samples for sedimentological and community characterization of endofauna. - To explore the Portuguese continental margin of the Gulf of Cádiz near the Spanish border in relation to the continuity of the distribution of Nephrops and characterization seabed.
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The objective of the CIRCAROCK0521 survey is to obtain the necessary information that will allow “identifying and evaluating the environmental status of circalittoral and rocky bathyal habitats”. The specific objectives that are proposed are: 1. Identify structuring species that characterize rocky circalittoral habitats. 2. Know the distribution of rocky circalittoral habitats. 3. Identify environmental variables involved in the distribution of rocky circalittoral habitats. 3. Compile information that is necessary to calculate the status and condition indicators that allow evaluating the conservation status of the different rocky circalittoral habitats. Additionally, the survey will allow documenting the rocky bottoms of the Cantabrian Sea and the Galician Atlantic coast in order to achieve the following secondary objectives: - Studies with multibeam probe and topas for mapping the rocky bottoms and characterization of the geomorphology of the area. - Document recording video and photo the species that characterize the different rocky circalittoral habitats. - Identify typical species of rocky circalittoral habitats from samples obtained with the rock dredge. - Prepare a catalog of species in which the taxonomy, the visual aspect and different biological and ecological characteristics of the different species are related.