Aquat. Living Resour.
Volume 35, 2022
|Number of page(s)||10|
|Published online||23 September 2022|
A standard processing framework for the location data of satellite-linked buoys on drifting fish aggregating devices
MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
2 Centre de Recherches Océanologiques (CRO), 29, rue des Pêcheurs BPV. 18, Abidjan Côte d'Ivoire, Republic of Côte d'Ivoire
3 AZTI-Tecnalia, Herrera kaia portualdea z/g, 20110 Pasaia (Gipuzkoa), Spain
4 International Seafood Sustainability Foundation (ISSF), Washington, DC, USA
5 Collecte Localisation Satellites (CLS), Parc Technologique du Canal, 11 Rue Hermès, 31520 Ramonville-Saint-Agne, France
* Corresponding author: email@example.com
: Verena Trenkel
Accepted: 9 August 2022
Satellite-linked buoys used by tropical tuna purse-seine vessels on drifting fish aggregating devices (DFADs) provide a continuous stream of information on both the ocean characteristics and the presence and size of fish aggregations associated with DFADs, enabling the study of pelagic communities. This unprecedented amount of data is characterized by ocean-scale coverage with high spatial and temporal resolutions, but also by different data formats and specifications depending on buoy model and brand, as well as on the type of data exchange agreements into play. Their use for scientific and management purposes is therefore critically dependent on the abilities of algorithms to process heterogeneous data formats and resolutions. This paper proposes a unified set of algorithms for processing the buoys location data used by the two major purse seine fleets operating in the Atlantic and Indian oceans. Three main issues that need to be addressed prior to the exploitation of the data are identified (structural errors, data records on land and on-board vessels) and five specific filtering criteria are proposed to improve the data cleaning process and, hence, quality. Different filtering procedures are also compared, and their advantages and limitations are discussed.
Key words: Instrumented DFADs / satellite-linked buoys / purse seiners / tropical tunas / data processing
© Y. Baidai et al., Published by EDP Sciences 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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