• EMODnet product catalogue
  •   Search
  •  Sign in

Eurofleets+ CARBO-ACID cruise (SEA02_10): multibeam, CTD and multinet hydrographic datasets

The CARBO-ACID research cruise (EUROFLEETS+ SEA02_10) was carried out on the RV Ramón Margalef between August 2nd and August 11st, with departing from Vigo – Spain and ending in Lisbon – Portugal. The main objective of this cruise was to collect data and samples to study the potential effects of ocean acidification on carbonate marine organisms (coccolithophores, pteropods, planktonic and benthic foraminifera, and corals) along the Iberian margin. With this objective, oceanographic data and water samples, plankton, cold-water corals and sediment samples were collected during an upwelling season, along two transects coinciding with the two persistent upwelling filaments off the Iberia Margin: the Cape Finisterra and the Cape Roca. In this dataset is guiven all the acquired data recollected onboad.  During the CARBO-ACID cruise we did a total of 7 stations, 4 stations along the Cape Finisterra transect (from W to E: CA3, CA2, CA7, CA8) and 3 stations at the Cape Roca (from W to E: CA6, CA5, CA4) transect (Fig). At each station we usually started with a multibeam survey, a CTD and Rosette cast. These initial operations allowed to identify the different water masses present in this area, characterize their physical properties and to recover seawater samples at specific depth levels. The seawater samples were onboard subsampled, preserved in cold conditions or with chemicals and/ or filtered for several further analysis in the shore-based laboratories: DNA, chlorophyll, fitoplankton, coccolithophores, pH, alkalinity, stable isotopic composition, trace elements concentration and Suspend Particulate Matter. Subsequently to these operations, at each station, two vertical tows with a plankton multinet (with 5 nets) were done on the top 700 m of the water column to sample the planktonic communities of the different water depths. After this, sediment samples were recovered with a box-corer to study the past oceanographic conditions, between the pre-industrial Era and the Present, with multi-proxies used in paleoceanography and sedimentology. A total of 10 box-cores were recollected and each of them was onboard sub-sampled for eDNA, enzymes and benthic foraminifera. Fifteen shipek grab samples were recollected at the Fontanelas seamount (Estremadura Spur), station CA6, to characterize the sedimentary cover and to evaluate the presence of deep cold-water corals. Preliminary results show that the stations CA7, CA8 and CA4, located close to the coast, as expected, are the most influenced by the coastal upwelling, exhibiting colder surface water, higher values of fluorescence, and more zooplankton content reflecting higher phyto-zooplankton concentrations, as typical of the upwelling waters. At station CA4 temperature was higher and fluorescence showed lower values, indicative of less phytoplankton, and interpreted as indicating a different upwelling source water from that upwelled further north. Based on the CTD data, the Cape Roca transect is more influenced by the subtropical East North Atlantic Central Water (ENACWst), while the Cape Finisterra transect is more under the influence of the subpolar branch (ENACWsp). Seafloor sediment samples showed significant differences between the stations. Along the northern transect (Cape Finisterra) the seafloor sediments show an increase in grain size from the offshore to the coast. The offshore stations CA3 and CA2 revealed finer grained sediments, CA8 were composed of coarser sand and the station CA7, the shallowest station 77 m, presented the sediment composed mainly of shell fragments and coarse grain sand. Along the southern transect (Cape Roca), the offshore station CA6 (Fontanelas seamount) has coarser sandy sediments with rock clasts and cold-water coral fragments, and the stations CA5 and CA4 with fine sand to muddy sediments. The detailed CA6 bathymetry allowed to verify the existence of small plateaus on the slope of the Fontanelas seamount, where the fossil cold-water corals fragments were found, suggesting that this area is a very interesting system deserving further study with a ROV, and to characterize the corals fields and verify if there are live corals. These recollected data and samples will allow not only to reconstruct the pH variability under different environmental conditions, but also to estimate the biogeochemical changes along the coastal ocean waters as the anthropogenic influence increases. These results will contribute to better understand and model the effects on the biota under the future expected oceans pH changes.

Important Note: This submission has been initially submitted to SEA

scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI.

The metadata elements have been further processed (refined) in EMODnet

Ingestion Service in order to conform with the Data Submission Service

specifications.

Simple

Date (Creation)
2022-08-11
Date (Revision)
2023-09-28
Date (Publication)
2023-10-20
Date (Publication)
Citation identifier
a53ad03f-3936-9363-3634-000000096495
Code
DOI:10.17882/96495
Other citation details

Salgueiro Emília, Magalhães Vítor, Rebotim Andreia, Matos Lélia, Schweizer Magali, Sousa Fátima, González Martín Maria, Batista Luis Batista (2022). Eurofleets+ CARBO-ACID cruise (SEA02_10) Datasets. SEANOE. https://doi.org/10.17882/96495

Point of contact
Organisation name Individual name Electronic mail address Role
SEA scieNtific Open data Edition

data@seanoe.org

Publisher
Portuguese Institute for Sea and Atmosphere

info@ipma.pt

Originator of Dataset
Royal Belgian Institute of Natural Sciences, Operational Directorate Natural Environment, Belgian Marine Data Centre

bmdc@naturalsciences.be

Author
GEMET - INSPIRE themes, version 1.0
  • Oceanographic geographical features
SeaVoX salt and fresh water body gazetteer
  • North Atlantic Ocean
  • Atlantic Ocean
  • Northeast Atlantic Ocean (40W)
SeaDataNet Agreed Parameter Groups
  • Other physical oceanographic measurements
  • Water column temperature and salinity
SeaDataNet device categories
  • CTD
  • multi-beam echosounders
  • multinets
SeaVoX Device Catalogue
  • Hydro-Bios MultiNet Mammoth
  • Sea-Bird SBE 911plus CTD
  • Kongsberg EM 710 multibeam echosounder
SeaDataNet Parameter Discovery Vocabulary
  • Variable fluorescence parameters
  • Electrical conductivity of the water column
  • Dissolved oxygen parameters in the water column
  • Bathymetry and Elevation
  • Salinity of the water column
  • Density of the water column
  • Sound velocity and travel time in the water column
  • Temperature of the water column
CRUISE SUMMARY REPORT INVENTORY (CSR)
  • 353_29RM202208020
SeaVoX Platform Categories
  • research vessel
MEDIN data format categories
  • Delimited
  • Text or Plaintext
Keywords
    Access constraints
    Other restrictions
    Other constraints
    no limitations to public access
    Use limitation

    Conditions for access and use apply

    Use constraints
    Other restrictions
    Other constraints

    CC BY-SA 4.0

    Character set
    UTF8
    Topic category
    • Oceans
    Begin date
    2022-08-02
    End date
    2022-08-11
    N
    S
    E
    W
    thumbnail




    Unique resource identifier
    WGS 1984

    Spatial representation info

    No information provided.
    Distribution format
    Name Version
    Delimited

    1

    Text or Plaintext

    1

    OnLine resource
    Protocol Linkage Name

    WWW:DOWNLOAD-1.0-http--download

    https://cloud.emodnet-ingestion.eu/index.php/s/rH5Jg4HRzMhI7jQ

    WWW:LINK-1.0-http--link

    Hierarchy level
    Dataset

    Conformance result

    Title

    COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata

    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification

    Pass
    No

    Conformance result

    Title

    Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83

    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification

    Pass
    No

    Conformance result

    Title

    Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification

    Pass
    No
    Statement

    Processed data,Raw data|- Multibeam data was logged in Kongsberg .all format. Data was processed onboard using the CARIS HIPS and SIPS software. The CARIS HIPS workflow is given in the CARBO-ACID cruise report. Final ASCII ArcGIS grided dataset is given in .csv format.

    - CTD data: Raw data processed with Sea-Bird SBE Data Processing v7.26.7.1. Processing routines included: Data conversion, Data filtering, Alignment, Cell Thermal Mass, Loop, Derivative variables calculation, Bottle summary and ASCII outputs.

    - Instrument and sensors: HYDRO-BIOS multi plankton sampler MultiNet, type Midi with 50 x 50 cm opening frame (0.25 m2), equipped with five nets (nets and cups with a 100 µm mesh size). Pressure sensor functional but, temperature, conductivity and flowmeter sensor (both flow in and flow out) were malfunctioning and therefore the temperature, conductivity and flow variables are not reliable.

    Multinet hydrographic data: Data processed with OceanLab 3, the data acquisition software for HYDRO-BIOS Instruments.

    Metadata

    File identifier
    a53ad03f-3936-9363-3634-000000096495 XML
    Metadata language
    English
    Character set
    UTF8
    Hierarchy level
    Dataset
    Date stamp
    2025-05-09T00:00:00
    Metadata standard name

    ISO 19115:2003/19139

    Metadata standard version

    1.0

    Metadata author
    Organisation name Individual name Electronic mail address Role
    Portuguese Institute for Sea and Atmosphere

    info@ipma.pt

    Point of contact
     
     

    Overviews

    Spatial extent

    thumbnail

    Keywords

    GEMET - INSPIRE themes, version 1.0

    Oceanographic geographical features
    MEDIN data format categories

    Delimited Text or Plaintext
    SeaDataNet Agreed Parameter Groups

    Other physical oceanographic measurements Water column temperature and salinity
    SeaDataNet Parameter Discovery Vocabulary

    Bathymetry and Elevation Density of the water column Dissolved oxygen parameters in the water column Electrical conductivity of the water column Salinity of the water column Sound velocity and travel time in the water column Temperature of the water column Variable fluorescence parameters
    SeaDataNet device categories

    CTD multi-beam echosounders multinets
    SeaVoX Device Catalogue

    Hydro-Bios MultiNet Mammoth Kongsberg EM 710 multibeam echosounder Sea-Bird SBE 911plus CTD
    SeaVoX Platform Categories

    research vessel


    Provided by

    logo
    Access to the catalogue
    Read here the full details and access to the data.




    •   About
    •   Github
    •