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Fish-finder echosounders

93 record(s)

 

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From 1 - 10 / 93
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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 and evaluation of the biomass of the anchovy in the Bay of Biscay within the National Sampling Plan.

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    Study and evaluation of the biomass of the anchovy in the Bay of Biscay within the National Sampling Plan.

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    Study and evaluation of the biomass of the anchovy in the Bay of Biscay within the National Sampling Plan.

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    Main targets of PECAN are: - Setting-up of R/V Ángeles Alvariño as acoustic-fisheries prospecting vessel. - Optimizing sampling design for the systematic study and abundance estimating of Canary Islands pelagic species. - Using echo integration as a method to estimate Canary Islands pelagic species abundance.

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    Main targets of PECAN are: - Setting-up of R/V Ángeles Alvariño as acoustic-fisheries prospecting vessel. - Optimizing sampling design for the systematic study and abundance estimating of Canary Islands pelagic species. - Using echo integration as a method to estimate Canary Islands pelagic species abundance.

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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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    This survey has been projected in the frame of La Restinga Volcano monitoring. After a wide number of surveys conducted by R/V Ramon Margalef during the volcano crissis (from october 2011 to february 2012) the aim this time is to compleate a bathymetric surver again in order to find out possible changes in geomorphology, Sound velocity profiles will be carried out in order to obtain the best accuracy on the data adquired.

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    The surveys on NAFO Regulatory Area of Div. 3L (Flemish Pass) were initiated by Spain in 2003. The surveys were carried out by the R/V “Vizconde de Eza” following the same procedures and using the same bottom trawl net type Campelen. The main objectives of this survey time series are: a) to obtain abundance indices of the main exploited species, b) to study the structure and distribution of these demersal species in the area.

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    Main objectives: Estímate egg abundance for mackerel and horse mackerel in surveyed area Estimate sardine spawning area in surveyed area by CUFES Collect mackerel adult samples to estimate adult parameters by pelagic trawls Secondary objectives: Estimate egg and larva abundances for sardine, anchovy, hake Measure the salinity , temperature depth in the water column using ctd