Circalittoral faunal turf occurrences on the Azores shelves (central north Atlantic) from 2005 to 2018

Fernando Tempera; Ana Luísa Sinde-Mano; José Gomes-Pereira; Diya Das; Goncalo Graca; Pedro Afonso; Pedro Afonso

doi:10.14284/558

Circalittoral faunal turf occurrences on the Azores shelves (central north Atlantic) from 2005 to 2018

Citation

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://dx.doi.org/10.14284/558 accessed via GBIF.org on 2024-11-07.

Description

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.

Additional info

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."

Taxonomic Coverages

urn:lsid:marinespecies.org:taxname:2

Animalia
rank: kingdom

Geographic Coverages

ANE, Azores

EurOBIS calculated BBOX > station Bounding Box

Bibliographic Citations

Contacts

Fernando Tempera
originator
Institute of Marine Research

Ana Luísa Sinde-Mano
originator
Institute of Marine Research

José Gomes-Pereira
originator
Institute of Marine Research
userId: https://orcid.org/0000-0002-4351-3522

Diya Das
originator
Institute of Marine Research
userId: https://orcid.org/0000-0001-8730-6456

Goncalo Graca
originator
Institute of Marine Research

Pedro Afonso
originator
Institute of Marine Research
userId: https://orcid.org/0000-0002-4618-2589

Fernando Tempera
metadata author
Institute of Marine Research

Pedro Afonso
point of contact
Institute of Marine Research
userId: https://orcid.org/0000-0002-4618-2589

Goncalo Graca
content provider
Institute of Marine Research

Ana Luísa Sinde-Mano
content provider
Institute of Marine Research

José Gomes-Pereira
content provider
Institute of Marine Research
userId: https://orcid.org/0000-0002-4351-3522

Diya Das
content provider
Institute of Marine Research
userId: https://orcid.org/0000-0001-8730-6456

Fernando Tempera
administrative point of contact
Institute of Marine Research