search DOI 10.17882/77035

ABRACOS 1 cruise. Acoustic data

The ABRACOS (Acoustics along the BRAzilian COaSt) cruise aims to begin an integrated approach to monitoring the tropical marine ecosystems in the Brazilian Nordeste region in order to better understand the connectivity between the sub-systems composing it. In particular, this cruise should fill this gap and improve understanding of the degree of connectivity which exists between the oceanic islands and the continental margin in the Nordeste of Brazil, as well as within the continental platform. In this context, the main objective of the ABRACOS cruise consisted in drawing up a 3D characterization of abiotic and biotic compartments and their interactions in the Brazilian Nordeste.

Disciplines

Fisheries and aquaculture

Keywords

ACOUSTIC, FISHERIES

Location

-3N, -9S, -35E, -31W

Devices

Four calibrated EK60 echosounders at 38, 70, 120, 200 kHz. Hull mounted system on research vessel ANTEA.

The pulse length was set at 512 µs for all frequencies.

Two configurations have been employed, one for bottom depth less than 150 m (ping rate: 0.45 second) and one for deeper areas (recording up to 750 m, ping rate: 2.4 second). The echosounders has been calibrated the 25/04/2017 in Fernando de Noronha.

Data

FileSizeFormatProcessingAccess
Echo integrated (Back scatter) data from EK60 calibrated echosounder at 0.1 NM by 5 meters resolution grid
515 MoNetCDFProcessed data
Download
How to cite
Bertrand Arnaud, Roudaut Gildas, Lebourges-Dhaussy Anne, Vargas Gary, Roubaud Fabrice (2015). ABRACOS 1 cruise. Acoustic data. SEANOE. https://doi.org/10.17882/77035

Copy this text

Oceanographic cruises
ABRACOS
Related documents
Ariza Alejandro, Lengaigne Matthieu, Menkes Christophe, Lebourges-Dhaussy Anne, Receveur Aurore, Gorgues Thomas, Habasque Jeremie, Gutiérrez Mariano, Maury Olivier, Bertrand Arnaud (2022). Global decline of pelagic fauna in a warmer ocean. Nature Climate Change. 12 (10). 928-934. https://doi.org/10.1038/s41558-022-01479-2, https://archimer.ifremer.fr/doc/00798/90957/
Related datasets
Bertrand Arnaud, Costa da Silva Alex, Chaigneau Alexis, Eldin Gérard, Roubaut Fabrice, Grelet Jacques, Ternon Jean-Francois, Roudaut Gildas, Lebourges-Dhaussy Anne, Rousselot Pierre (2024). ABRACOS 1 cruise - Physical datasets. SEANOE. https://doi.org/10.17882/76696
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 (2024). Nano- and Microphytoplankton diversity data collected during the ABRACOS 1 and 2 surveys performed along the Northeast Brazil continental shelf, slope and open ocean. SEANOE. https://doi.org/10.17882/98867
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 (2017). Picoplankton and nanophytoplankton cytometry data collected during the ABRACOS 2 survey performed along the northeast Brazilian continental shelf, slope and open ocean. SEANOE. https://doi.org/10.17882/95241
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 (2015). Phytoplankton pigment data collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean. SEANOE. https://doi.org/10.17882/95171
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 (2015). Nutrient data collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean. SEANOE. https://doi.org/10.17882/95172
AboutContactLegal noticeCreditsRSSTwitterOAI-PMH
Certified by