Dataset: Echosounder data (38kHz) collected along the slope between Faial and Pico Island Azores in November and December of 2021

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.921981.1Version 1 (2024-03-12)Dataset Type:Other Field Results

Principal Investigator: T. Aran Mooney (Woods Hole Oceanographic Institution)

Student: Seth Cones (Woods Hole Oceanographic Institution)

BCO-DMO Data Manager: Amber D. York (Woods Hole Oceanographic Institution)


Project: RAPID: Too hot to hold: Effects of unseasonable warming on the Azores nekton community and its keystone taxon (Too hot to hold)


Abstract

We collected 38 kHz scientific grade echosounding along the slope between Faial and Pico Island Azores. These data span night and day time periods and were aimed at measuring the diel vertical migration of the deep scattering layer in the area. The transducer was mounted near the transom of a boat and was submerged 0.5 meters below the surface.

Deployments: Day-trips aboard a 21-foot RIB while winds were less than 15 knots. Data span November 29 to December 2nd.

Sampling was completed with a BioSonics DTX Extreme scientific echosounder and a 38kHz transducer. Transducer was coated in soap prior to deployment to prevent bubbles on surface. Sampling took place along depth range spanning 100-500 meters while the boat transited at 1.5 knots above bottom. 


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Related Publications

Methods

BioSonics (2020). Visual Aquatic User Guide version (r13145) May 26, 2020. Available from https://www.biosonicsinc.com/support/customer-downloads/ accessed 2024-01-04.
Software

BioSonics (2022). Visual Aquatic 1.0. Available from https://www.biosonicsinc.com/download/visual-aquatic-1-0/