Abundance of mesopelagic fish through the water column and diel patterns in the tropical and equatorial Atlantic

DOI

This file contains data on numerical abundance of mesopelagic fishes collected in April 2015 across the tropical and equatorial Atlantic. Twelve stations were visited day and night, from the oligotrophic region close to the Brazilian coast to the more productive region off the western African coast. Hauls were performed with a scientific midwater trawl, the Mesopelagos (designed by Meillat, 2012), which works with a single traction cable. The gear consists of graded-mesh netting starting with 30 mm and ending with 4 mm. At the end of the net, a multi-sampler (designed for the present investigation by one of the co-authors, A. Castellón-CSIC) was installed to obtain samples from 5 different depth layers of the water column. For some stations, where lots of gelatinous organisms, or Sargassum weed occurred, the system could not work and the data presented integrates the water column from 800 m to the surface. The depth of the net was controlled by a SCANMAR system. Samples were identified on board or frozen for a later identification in the laboratory. These data were obtained within the project: "Migrants and Active Flux In the Atlantic Ocean, financed by the Spanish Ministerio de Ciencia e Innovación CTM2012-39587-C04.

When specimens were damaged and identification could not be made with absolute certainty, a “?” was included in front of the species name.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.927991
Related Identifier https://doi.pangaea.de/10.1594/PANGAEA.928080
Related Identifier https://doi.org/10.1016/j.pocean.2016.12.001
Related Identifier https://doi.org/10.20351/29HE20150403
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.927991
Provenance
Creator Olivar, M Pilar; Hulley, P Alexander; Castellón, Arturo; López, Cristina; Tuset, Victor M; Contreras, Tabit
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2021
Funding Reference European Commission, 817806; Ministerio de Ciencia e Innovación, CTM2012 39587 C04
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 17356 data points
Discipline Earth System Research
Spatial Coverage (-34.051W, -13.131S, -17.328E, 25.429N); Central Atlantic
Temporal Coverage Begin 2015-04-05T01:32:00Z
Temporal Coverage End 2015-04-27T22:56:00Z