Zostera noltii meadows distribution in the Portuguese mainland from historical data. Data provided by the Life Project BIOMARES and published in: “Seagrasses in Portugal: A most endangered marine habitat”. Aquatic Botany. doi:10.1016/j.aquabot.2011.08.007. “Estimation of available seagrass meadows area in Portugal for transplanting purposes ”. Journal of Coastal Research (2009) :SI 56 (1100-1104)

Cymodocea nodosa meadows distribution in the south of Portugal from historical data. Data provided by the Life Project BIOMARES and published in: “Seagrasses in Portugal: A most endangered marine habitat”. Aquatic Botany. doi:10.1016/j.aquabot.2011.08.007. “Estimation of available seagrass meadows area in Portugal for transplanting purposes ”. Journal of Coastal Research (2009) :SI 56 (1100-1104)

Laminaria hyperborea distribution in the Portuguese mainland from historical data. Data provided by the Project FindKelp and published in: “Findkelp, a GIS-based Community Participation Project to Assess Portuguese Kelp Conservation Status”. Journal of Coastal Research (2009) :SI 56 (1469-1473)

Zostera marina meadows distribution in the Portuguese mainland from historical data. Data provided by the Life Project BIOMARES and published in: “Seagrasses in Portugal: A most endangered marine habitat”. Aquatic Botany. doi:10.1016/j.aquabot.2011.08.007. “Estimation of available seagrass meadows area in Portugal for transplanting purposes ”. Journal of Coastal Research (2009) :SI 56 (1100-1104)

Laminaria ochroleuca distribution in the Portuguese mainland from historical data. Data provided by the Project FindKelp and published in: “Findkelp, a GIS-based Community Participation Project to Assess Portuguese Kelp Conservation Status”. Journal of Coastal Research (2009) :SI 56 (1469-1473)

Saccorhiza polyschides distribution in the Portuguese mainland from historical data. Data provided by the Project FindKelp and published in: “Findkelp, a GIS-based Community Participation Project to Assess Portuguese Kelp Conservation Status”. Journal of Coastal Research (2009) :SI 56 (1469-1473)

Maerl beds distribution in the Portuguese mainland from historical data. Data published in: “Present distribution of maerl beds in the Atlantic Iberian Peninsula”. Museologia Scientifica e Naturalista. Volume Speciale 2009

The data have been acquired with a SeaBat RESON 8125 (455kHz) e Seabat RESON 8160 (50 kHz) multibeam echosounders mounted on board of the research vessel "Universitatis" (chief scientist F.L. Chiocci; party chief F. Falese). The main objective of this cruise was the search of relict sand deposits potentially exploitable for beach nourishment on these continental shelves. Weather conditions were good during the acquisition.

This composite Digital Terrain Model (cDTM) is a high resolution bathymetry dataset that covers bathymetry surveys INDEMARES-2, ABIDES-2, ABIDES-3, ABIDES-ROV and ABIDES-5 . Multibeam data acquired in 2010, 2017 and 2018 on board the R/V Garcia del Cid using a Elac Seabeam 1050D echosounder and in 2017 on board the Sarmiento de Gamboa using an Atlas Hydrosweep DS-3 multi-beam echosounder.

The data have been acquired with a SeaBat RESON 7125 (frequency 450kHz and depth up to 150 m) multibeam echosounder mounted on board of the research vessel "Minerva 1" (party chief F. G. Falese) between 27 september and 5 october 2016. The main objective of this cruise was the search of relict sand deposits potentially exploitable for beach nourishment on these continental shelves. Weather and marine conditions were fair during the acquisition.