European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Hydrographic and chlorophyll-a data collected as part of the ECTZ Islas Canarias Project (1991)

Data holding centreUniversity of Wales, School of Ocean Sciences
CountryUnited Kingdom  United Kingdom
Time periodFrom 17 October to 5 November 1991
OngoingNo
Geographical area

Around the Canary Islands, 27° N to 29.5° N, 19° W to 12.5° W

Observations 
Parameters

Bacteria generic abundance in sediment; Carotenoid and flavenoid pigment concentrations in water bodies; Particulate inorganic carbon concentrations in the water column; Particulate total and organic carbon concentrations in the water column; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen parameters in the water column; Raw fluorometer output; Particulate total and organic nitrogen concentrations in the water column; Nitrate concentration parameters in the water column; Phosphate concentration parameters in the water column; Primary production in the water column; Salinity of the water column; Plankton abundance per unit volume of the water column; Silicate concentration parameters in the water column; Geological sample radioactivity; Bacterial consumption in the water column; Temperature of the water column; Bacterial production in the water column; Radioactivity in the water column; Phaeopigment concentrations in the water column; Bacteria taxonomic abundance in sediment

Instruments

Fluorometers; CTD; nutrient analysers; plankton nets; discrete water samplers; salinity sensor

Description 
Summary

The overall aim of the ECTZ, Islas Canarias, MAST Project 0031 is to improve the understanding of physical and biological phenomena in the region of the Canary Islands, which are located in a transition zone between the eutrophic upwelling waters of the African continental shelf and the oligotrophic oceanic waters of the Canary Islands. Data were collected on a cruise aboard the chartered Russian Research Vessel 'Ignat Pavlyuchkov' between 17 October and 5 November 1991. The general aim was to study the spatial and short-term temporal variability of properties characteristic of the autumn season in the area of the islands. Two large east-west transects were surveyed at the north and south of the islands, 45km spacing, sampled to 1000km depth, a fine grid sampled around Gran Canaria (20km apart) and two 24 hour fixed stations to the north and south of Gran Canaria were occupied (to 400km). Measurements were made of temperature, salinity, fluorescence, chlorophyll, oxygen, nutrients, primary production, particulate carbon and nitrogen, ETS, pigments, plankton and bacteria by means of CTD and Rosette water bottle casts (down to 1000m), Niskin water bottles and vertical and horizontal plankton tows. In addition, in situ carbon-14 studies were also carried out. This was a joint project involving UCNW, Universidad de las Palmas de Gran Canaria, Spain, Centro Oceanografico de Canarias, Spain and the Centro Comune de Ricerca, Ispara, Italy. UCNW was responsible for the data collected using the CTD (i.e. temperature, salinity and fluorometer and derived chlorophyll data). This data set comprises 117 CTD casts; 14 stations to the north of the Canary Islands; 11 station to the south of the Canaries; 41 stations on a fine grid and hourly vertical profiles at two sites.

OriginatorsUniversity of Wales, School of Ocean Sciences
References

Wild, K.A. (1992) Ignat Pavlyuchenkov Cruise Report: Hydrographic Field., Report 0031-08. May 1992 European Coastal Transition Zone Islas Canarias MAST Project 0031.; Velez-Munoz, H.S. (1992) Ignat Pavlyuchenkov Cruise Report: Hydrographic Field., Report 0031-09. October 1992 European Coastal Transition Zone Islas Canarias MAST Project 0031.

Availability 
OrganisationUniversity of Wales, School of Ocean Sciences
AvailabilityUnknown
ContactHead of Department
Address

University of Wales, School of Ocean Sciences
School of Ocean Sciences, University of Wales Bangor, Menai Bridge, Anglesey,
Menai Bridge
Anglesey
LL59 5AB
United Kingdom

Telephone+44 1248 351151
Emailenquiries@sos.bangor.ac.uk
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1021002
Global identifier555
Last revised2009-12-01