Abundance data of planktonic cnidarians collected during the ABRACOS 1 and 2 surveys performed along the northeast Brazilian continental shelf, slope and open ocean
|Author(s)||Giachini Tosetto Everton1, 2, 3, Nogueira Junior Miodeli5, Neumann-Leitão Sigrid3, Costa Da Silva Alex3, Bertrand Arnaud1, 2, 3, 4|
|Affiliation(s)||1 : MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, 34200, France
2 : Institut de Recherche pour le Développement, Sète, 34200, France.
3 : Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, 50670-901, Brazil
4 : Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, 52171-900, Brazil
5 : Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, 58051-900, Brazil
|Keyword(s)||Planktonic Cnidarians, Hydromedusae, Siphonophores, Zooplankton, Tropical, Brazil, Atlatic Ocean|
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.