CRUISES / MapGES 2020
Mapping deep-sea biodiversity and “Good Environmental Status” in the Azores
Summary Show more ↓

MapGES 2020 aimed to map deep-sea biodiversity and identify Vulnerable Marine Ecosystems (VMEs) using the Azor drift-cam system. The system was deployed both from the fishing vessel Galinha and from the RV Arquipélago, from the University of the Azores. The objectives of this cruise were to (i) map benthic communities inhabiting unexplored seamounts, ridges and island slopes, (ii) identify new areas that fit the FAO Vulnerable Marine Ecosystem definition; and (iii) determine distribution patterns of deep-sea benthic biodiversity in the Azores. The results of this cruise contributed to identifying the environmental drivers that determine the spatial distribution of deep-sea benthic biodiversity in the Azores region. It also provided valuable information in the context of Good Environmental Status (GES), Marine Spatial Planning (MSP) and provide new insights on how to sustainably manage deep-sea ecosystems.


Statistics
Transits
1380 km
Multibeam Bathymetry
0 km²
Filmed Seabed
50 km
Visited Areas
8
Stations
99
Dives
99
Video Footage Recorded
74 hours
Used Storage
5.23 Tb
Samples
0
No samples were collected

Highlights
  1. Successfully perform a 10-day survey with the Azor drift-cam on board a local fishing vessel not based in Faial Island, with dives to almost 800 m depth. This achievement demonstrates the remarkable capacity of this tool to rapidly assess the diversity of deep-sea benthic communities from small local vessels and be moved between areas with ease.
  2. Accomplishment of almost 100 new underwater video transects between 100 and 800 m depth, most of them in areas of the Azores that had never been explored before and for which no information regarding the composition of its benthic communities was available.
  3. On the slopes of Graciosa Island, we found dense and diverse coral gardens, most of which were dominated by 4 different species of octocorals that displayed different densities across areas. A high proportion of the corals observed in these aggregations displayed large sizes and showed very few signs of being impacted by fishing activities. Massive sponges of the genus Characella were also commonly observed throughout the whole area, although never seen forming dense aggregations.
  4. In general, we discovered several areas with diverse coral gardens and sponge grounds that may fit the FAO criteria to be considered Vulnerable Marine Ecosystems (VMEs).
Scientific Crew
Telmo Morato
Principal Investigator
Carlos Dominguez-Carrió
Early-career Researcher
Luís Rodrigues
Senior Scientist
Manuela Ramos
Research Assistant
Sérgio Gomes
Research Assistant
Laurence Fauconnet


Gerald H. Taranto Laurence Fauconnet

Collaborators
Marina Carreiro-Silva

Location of operation

Graciosa, Terceira and south Faial (Central Azores EEZ)


Stations
Settings Fullscreen
Leg Period Days at sea Vessel Departure Return
1 22/08/2020 - 31/08/2020 10 FV Galinha Graciosa Graciosa
2 24/09/2020 - 01/10/2020 8 RV Arquipélago Horta Horta
3 14/10/2020 - 14/10/2020 1 FV Tatiana Horta Horta
4 20/11/2020 - 26/11/2020 7 RV Arquipélago Horta Horta
A total of 26 days at sea
Activities
Video survey (Azor Drift-Cam)


Funding
ATLAS European Union’s Horizon 2020 678760 (ATLAS) iAtlantic European Union’s Horizon 2020 818123 (iAtlantic)

Related projects
ATLAS iAtlantic


Departamento de Oceanografia e Pescas

Rua Prof. Doutor Frederico Machado, 4

9901-862 Horta, Portugal

Azores Deep-sea Research

azoresdeepsea@gmail.com

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AZORES DEEP-SEA RESEARCH © 2020-2024 Developed by Valter Medeiros © IMAR/OKEANOS-UAc