EMODnet product catalogue
Circalittoral faunal turf occurrences on the Azores shelves (central north Atlantic) from 2005 to 2018
Circalittoral faunal turfs are animal-dominated shelf assemblages that are found on hard substrata between the lower limit of the infralittoral zone and the shelf edge. Benthic organisms generally form dense intricate mixes that may include tall alcyonarians, sponges, hydroids, scleractinians and gorgonians, as well as less prominent fauna such as encrusting sponges, bryozoans, ascidians, bivalves, solitary cup corals, serpulid worms and vermetid gastropods.
These assemblages make up an important part of two of the EC Habitats Directive Annex I habitats: i) ‘Reefs’ (1170) and ii) ‘Submerged or partly submerged sea caves’ (8830) containing deep aphotic enclaves. A variety of circalittoral faunal turfs have been observed on the Azores shelves but knowledge on their distribution and the assemblages they form is scarce.
This dataset compiles circalittoral faunal turf occurrences from sublittoral surveys conducted across the Azores archipelago (NE Atlantic) between 2005 and 2018. Sampling concentrated on island shelf and margin settings and was conducted using various optical platforms: (i) two small remote operated vehicles (a VideoRay Explorer micro-ROV and a SeaBotix LBV300S-6 mini-ROV); (ii) two custom-made underwater drop-down video frames carrying Tritech MD4000, GoPro Hero3+ or GitUp Git 2 cameras. A literature-based record made with a manned submersible is included for the sake of completion.
The compilation comprises 548 occurrences (200 presences and 348 absences) identified at depths ranging between 24 m and 307 m.
"Acknowledgements: To the Portuguese Foundation for Science and Technology for grants and individual contracts awarded to Fernando Tempera (refs: SFRH/BD/12885/2003, SFRH/BPD/79801/2011) and P. Afonso (IF/01640/2015) and funding of Okeanos Strategic Program. To projects CoralFish (EC-FP7ENV/2007/1/213144), CORAZON (FCT/PTDC/MAR/72169/2006), PLATMAR (FCT/PTDC/GEO-GEO/0051/2014) and Mission Atlantic (EC H2020-LC-BG-08-2018) for funding surveys throughout the archipelago and work by F. Tempera and J.N. Gomes Pereira. To the Azores Regional Government for funding the projects MoniZec, BALA, MoniZec-ARP and MONICO via the Regional Foundation for Science - Technology (DRCT/FRCT) and the Regional Directorate for Maritime Affairs (DRAM).
To the Azores Regional Government for funding a Estagiar-L grant awarded to A.L. Sinde-Mano. To the Oceano Azul Foundation and the Waitt Foundation for funding the Blue Azores 2018 expedition. To the University of St. Andrews (Scotland) and Richard Bates for providing the Tritech camera used in the 2005 survey. To Renato Martins (IMAR-DOP/UAz) for the mini-ROV SP operation and troubleshooting. To the crews of the vessels R/L Águas Vivas, R/V Arquipélago and Nossa Senhora dos Milagres for all the hard work at sea. To Ricardo Serrão Santos and Frederico Cardigos for their general support and organisation of the early BANCOS expeditions promoted by IMAR/DOP-UAç."
Simple
- Date (Publication)
- 2022-03-14
- Point of contact
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Organisation name Individual name Electronic mail address Role Institute of Marine Research
Originator Institute of Marine Research
Originator Institute of Marine Research
Originator Institute of Marine Research
Originator Institute of Marine Research
Originator Institute of Marine Research
Resource provider Institute of Marine Research
Resource provider Institute of Marine Research
Resource provider Institute of Marine Research
Resource provider Institute of Marine Research
Originator
- Use constraints
- Other restrictions
- Other constraints
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Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND)
- Other constraints
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Tempera F.; Sinde-Mano A.L.; Gomes Pereira J.N.;Das D.; Graça G.; Afonso P.; IMAR-Institute of Marine Research, University of the Azores, Portugal; (2021): Circalittoral faunal turf occurrences on the Azores shelves (central north Atlantic) from 2005 to 2018. https://doi.org/10.14284/558
- Access constraints
- Other restrictions
- Spatial representation type
- Text, table
- Language
- zxx
- Topic category
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- Biota
- Environment
- Geoscientific information
- Oceans
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Temporal Extent
- Begin date
- 2005-09-15
- End date
- 2018-09-08
- Begin date
- 2005-09-19
- End date
- 2018-09-08
- Unique resource identifier
- EPSG:4326
- Distribution format
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Name Version XYZ ASCII
- OnLine resource
- Hierarchy level
- Dataset
Domain consistency
Conformance result
- Title
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Technical Guidance for the implementation of INSPIRE dataset and service metadata based on ISO/TS 19139:2007
- Date (Publication)
- 2017-03-02
- Explanation
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This metadata set is non conformant with the Technical Guidance for the implementation of INSPIRE dataset and service metadata based on ISO/TS 19139:2007
- Pass
- No
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
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Conformance of this data set with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services was not evaluated
- Statement
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Prior to publication data undergo quality control checked which are described in https://github.com/EMODnet/EMODnetBiocheck?tab=readme-ov-file#understanding-the-output
Metadata
- File identifier
- 6d617269-6e65-696e-666f-000000008041 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2026-01-26T00:00:00+01:00
- Metadata author
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Organisation name Individual name Electronic mail address Role Institute of Marine Research
Point of contact
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