Catálogo de datos del IEO
Creation year
2020
115 record(s)
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Acoustic estimation of abundance of juvenile anchovy in the Bay of Biscay.
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Acoustic estimates by echointegration of the strength of the anchovy and sardine recruitment off Portugal and south Galicia Oceanographic (physical -CTD- and biological _bongo nets)characterization of the surveyed area Charting the subsurface microplastic distribution along the surveyed area
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El objetivo de la campaña es conocer el estado de las poblaciones de las especies objetivo: su abundancia, biomasa y estructura demográfica, y las condiciones oceanográficas en el Banco. Este objetivo implica las siguientes acciones: • Prospectar el área de Flemish Cap, División 3M de NAFO hasta profundidades de 1460 m (800 brazas) mediante un muestreo aleatorio estratificado, haciendo 181 pescas válidas de arrastre con un arte Lofoten, diurnas: entre las 6.00 y las 22.00 horas, y una duración efectiva de arrastre de 30 minutos. • Realizar en cada pesca un muestreo biológico detallado de la captura para cada una de las especies objetivo, que incluya muestreos de talla, sexo, peso, otolitos y gónadas. Para las demás especies sólo se hará muestreo de tallas y muestreos talla-peso. • Análisis de los contenidos estomacales de las principales especies capturadas, a realizar cada dos años. • Identificación y registro de todas las especies de invertebrados presentes en las capturas. • Registrar las condiciones oceanográficas en el banco haciendo estaciones de CTD para cubrir un retículo con 15 millas de separación, tanto en longitud como en latitud.
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The objective of the project RADIALES, started in 1990, aims at “understanding and modelling the response of the marine ecosystem to the sources of temporal variability in oceanographic and planktonic components, focusing on those factors and processes affecting biological production and potentially altering the ecosystem services”. This project is the oldest multidisciplinary ocean observation initiative still active in Spain.
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Spanish Porcupine bottom trawl survey aims to collect data on the distribution and relative abundance, and biological information of commercial fish in Porcupine bank area (ICES Division 7b-k). The primary target species are hake, monkfish, white anglerfish and megrim, which abundance indices are estimated by age, with abundance indices also estimated for Nephrops, four-spot megrim and blue whiting. Data collection is also collected for several other demersal fish species and invertebrates.
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Getting the spatial distribution and abundance indices of benthic and demersal fauna of the continental shelf of Galicia and Cantabrian Sea. Hydrographic survey of the neritic zone led to its influence on the distribution of species. Sampling using a box corer to obtain granulometrics indices of sediment.
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Study of the circalitoral benthic habitats in sedimentary bottoms of the South Atlantic Demarcation. Identification and mapping of habitats. Characterization of benthic communities.
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Study of the circalitoral benthic habitats in sedimentary bottoms of the Canary Islands Demarcation. Identification and mapping of habitats. Characterization of benthic communities. Fine-tuning of the study techniques of the benthic habitats of the circalitoral and bathyal sedimentary bottoms. Identification, mapping and characterization of benthic communities.
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Get abundance indices of groundfish demersales species. Get the size structure of commercially exploited stocks. Collection of biological material. Prospecting deep zones.Get physical-chemical parameters of water in the study area.
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Estimating the abundance and population structure of the target species of the trawl fishery in the Mediterranean, identified in the MEDITS project (Annex I), studying the biology of exploited communities on the shelf and upper slope of the study area and the impact of fishing on ecosystems.