seanoe:92011 GIACHINI TOSETTO Everton MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, 34200, France Institut de Recherche pour le Développement, Sète, 34200, France. Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil 2026-07-07 ISO 19115:2003/19139 1.0 Abundance data of planktonic cnidarians collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean 2026 2026-07-07 Giachini Tosetto Everton, Nogueira Junior Miodeli, Neumann-Leitão Sigrid, Costa Da Silva Alex, Bertrand Arnaud (2026). Abundance data of planktonic cnidarians collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean. SEANOE. https://doi.org/10.17882/92011 Abundance data (individuals.100 m-3) of planktonic cnidarians collected during two “Acoustics along the Brazilian coast” surveys (ABRACOS 1 and ABRACOS 2) performed along the northeast Brazilian continental shelf and slope between 5 and 9° S and around oceanic seamounts and islands from Fernando de Noronha ridge, including the Fernando de Noronha Archipelago itself and the Rocas Atoll. The surveys were carried out on board the French oceanographic vessel R/V Antea in austral spring (September–October 2015) and autumn (April–May 2017). Planktonic cnidarians were sorted from zooplankton samples collected at 34 and 45 stations in spring and autumn, respectively. Samples were collected through oblique hauls, with a Bongo net with a 300 µm mesh size and 0.6 m mouth opening. The water column was sampled from near the bottom to the surface over the continental shelf and from 200 m to the surface in the offshore. The net was towed at approximately 2 knots, at various times of day and night. GIACHINI TOSETTO Everton MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, 34200, France Institut de Recherche pour le Développement, Sète, 34200, France. Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil Nogueira Junior Miodeli Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, 58051-900, Brazil Neumann-Leitão Sigrid Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil Costa da Silva Alex Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil BERTRAND Arnaud MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, 34200, France Institut de Recherche pour le Développement, Sète, 34200, France. Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, 52171-900, Brazil SEANOE https://www.seanoe.org/data/00808/92011/illustration.gif Planktonic Cnidarians Hydromedusae Siphonophores Zooplankton Tropical Brazil Atlatic Ocean Biological oceanography Zooplankton ODATIS aggregation parameters and Essential Variable names 2025-07-29 geonetwork.thesaurus.external.theme.NVS.OD1 Biological oceanography SeaDataNet Parameter Disciplines 2025-07-29 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2025-12-09 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY (Creative Commons - Attribution) Mercury concentration measurements performed on micronekton organisms collected during the ABRACOS 2 survey in the Tropical Western Atlantic (3°S–6°S) 2026 SEANOE Eduardo Leandro Nole Coubard Martin Laffont Laure Lucena-Frédou Flávia Médieu Anaïs Mincarone Michael Maia Point David Santana Julianna De Lemos Bertrand Arnaud 10.17882/118084 Phytoplankton pigment data collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean 2026 SEANOE Farias Gabriel Bittencourt Ternon  Jean-François Hillion Sandrine Melo Pedro Augusto Mendes De Castro Carré Claire Molinero Juan-Carlos Baurand François Grelet Jacques Chaigneau  Alexis Costa Da Silva  Alex Devasa Jeremy Roubaud Fabrice Bertrand Arnaud 10.17882/95171 Nutrient data collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean 2026 SEANOE Farias Gabriel Bittencourt Ternon  Jean-François Hillion Sandrine Melo Pedro Augusto Mendes De Castro Carré Claire Molinero Juan-Carlos Baurand François Grelet Jacques Chaigneau  Alexis Costa Da Silva  Alex Devasa Jeremy Roubaud Fabrice Bertrand Arnaud 10.17882/95172 Microplastics analysis performed on micronekton organisms collected during the ABRACOS 2 survey in the Tropical Western Atlantic (3°S–9°S) 2026 SEANOE Ferreira Guilherme V. B. Justino Anne K. S. Catunda Amanda G. F. Coubard Martin Frédou Thierry Lucena-Frédou Flávia Mincarone Michael Maia Bertrand Arnaud 10.17882/118089 Abundance and biovolume of Zooplankton collected during the ABRACOS expeditions in the Tropical Western Atlantic 2026 SEANOE Melo Pedro Augusto Mendes De Castro Carré Claire Lira Simone Maria De Albuquerque Figueiredo Gabriela Guerra Araújo Abrantes Diaz Xiomara Franchesca Garcia Figueiredo Lucas Guedes Pereira Giachini Tosetto Everton Lins-Silva Nathalia Marcolin Catarina Da Rocha de Melo Junior Mauro Neumann-Leitao Sigrid Oliveira Matheus Schwamborn Ralf Simier Monique Bertrand Arnaud 10.17882/109464 Data on marine microbiome diversity collected during the ABRACOS 1 expedition in the Tropical Western Atlantic Ocean along the Northeast Brazil continental shelf, slope and open ocean 2025 SEANOE Auguet Jean-Christophe Carré Claire Costa Da Silva Alex Restrepo-Ortiz Claudia Ximena Simier Monique Ternon Jean-François Bertrand Arnaud 10.17882/109069 Dataset of demersal and deep-pelagic macroalgae, invertebrates and fishes collected during the ABRACOS expeditions in the Tropical Western Atlantic 2025 SEANOE Eduardo Leandro Nole Mincarone Michael Maia Afonso Gabriel Vinicius Felix Cocentino Adilma De Lourdes Montenegro Frédou Thierry Garcia Diaz Xiomara Lima Rayssa Siqueira Lira Alex Souza Lucena-Frédou Flávia Martins Júlia Rodrigues Melo Catarina Pinheiro Ulisses Santana Julianna De Lemos Simier Monique Soares Andrey Souza Filho Jesser Fidelis Vaske-Jr. Teodoro Villarins Bárbara Teixeira Bertrand Arnaud 10.17882/107231 Isotopic analyses realized on samples of Particular Organic Matter, Zooplankton, and demersal and deep-pelagic invertebrates and fishes collected during the ABRACOS expeditions in the Tropical Western Atlantic 2025 SEANOE Figueiredo Gabriela Guerra Araújo Abrantes Eduardo Leandro Nole Frédou Thierry Gonzalez Júlio Guazzelli Le Loc'h François Lira Alex Souza Lucena-Frédou Flávia Martins Júlia Rodrigues Melo Catarina Mincarone Michael Maia Munaron Jean-Marie Pelage Latifa Santana Julianna De Lemos Schwamborn Ralf Simier Monique Soares Andrey Souza Filho Jesser Fidelis Villarins Bárbara Teixeira Bertrand Arnaud 10.17882/108735 Nano- and Microphytoplankton diversity data collected during the ABRACOS 1 and 2 surveys performed along the Northeast Brazil continental shelf, slope and open ocean 2024 SEANOE Carré Claire Melo Pedro Augusto Mendes De Castro Cabanez Léandro Ferreira Cordeiro Isis Amália Jales Marina Cavalcanti Lacerda Sírleis Rodrigues Lira Simone Maria De Albuquerque Silva-Cunha Maria Da Glória Gonçalves Ternon Jean-Francois Simier Monique Bertrand Arnaud 10.17882/98867 Picoplankton and nanophytoplankton cytometry data collected during the ABRACOS 2 survey performed along the northeast Brazilian continental shelf, slope and open ocean 2017 SEANOE Farias Gabriel Bittencourt Ternon  Jean-François Hillion Sandrine Melo Pedro Augusto Mendes De Castro Carré Claire Molinero Juan-Carlos Baurand François Grelet Jacques Chaigneau  Alexis Costa Da Silva  Alex Devasa Jeremy Béc Beatrice Roubaud Fabrice Bertrand Arnaud 10.17882/95241 10.17600/15005600 10.17600/17004100 oceans -38.0 -30.0 -10.0 -2.0 CSV TEXTE https://www.seanoe.org/data/00808/92011/data/97970.csv WWW:DOWNLOAD-1.0-link--download Processed data dataset - 40 KB https://www.seanoe.org/data/00808/92011/data/132268.csv WWW:DOWNLOAD-1.0-link--download Quality controlled data dataset in long format - 494 KB https://www.seanoe.org/data/00808/92011/data/132269.txt WWW:DOWNLOAD-1.0-link--download README (dataset in long format) - 5 KB https://doi.org/10.17882/92011 DOI DOI of the product https://www.seanoe.org/data/00808/92011/ rel-canonical Seanoe