Description
This is an acoustic telemetry dataset published by Ghent University. It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2015_phd_verhelst_eel, using VEMCO tags (V13) and receivers (VR2AR, VR2Tx, VR2W). In total 136 female individuals of European eel (Anguilla anguilla) were captured, tagged and released between 2015 and 2018 in the Scheldt estuary, to study their migration behaviour - especially their use of selective tidal stream transport - in a tidal system without migration barriers.
Large estuaries with a complete salinity gradient from a tidal freshwater zone to marine have become rare due to water regulating constructions such as sluices, shipping locks, water pumping stations and dams. However, the Scheldt estuary in Belgium still has an extensive estuary of ca 160 km. Diadromous fish have to overcome substantial distances which come with a high energetic cost. Due to the high energetic cost of migration and the low adult survival, some of these species have developed semelparity. Consequently, a bioenergetic trade-off between migration and reproduction may exist for semelparous fish species, especially since many will stop feeding during migration: the smaller the energy expenditure during migration, the larger the amount of energy that may remain available for gonad maturation. An example where migration can have important bioenergetic repercussions is migration through strong tidal systems. To reduce energy loss in such systems, fish may perform selective tidal stream transport (STST): an animal ascends into the water column with the appropriate tide and rests on or in the bottom during the opposite tide. However, the use of STST by silver European eels is still controversial. In this study, we found strong evidence that silver European eels apply STST. The results illustrate that eels can distinguish between ebb and flood and suggest that tides play a role in orientation, either directly or indirectly. The general migration speed was higher in the downstream part of the estuary compared to the upstream part, while tidal migration speed was equal in both parts, indicating that eels migrated more consistently in the downstream part. The results of this study give insight in how a diadromous species migrates through an estuary and underline the importance of the tides.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Verhelst et al. (2020, https://doi.org/10.14284/434).
Enregistrements de données
Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 81 302 enregistrements.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Verhelst P, Reubens J, Coeck J, De Maerteleire N, Desmet P, Gelaude E, Mouton A, Pieters S, Reyserhove L, Robberechts K, Moens T (2024). 2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium). Version 1.0. Ghent University. Occurrence dataset. https://doi.org/10.14284/434
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Ghent University. En vertu de la loi, l'éditeur a abandonné ses droits par rapport à ces données et les a dédié au Domaine Public (CC0 1.0). Les utilisateurs peuvent copier, modifier, distribuer et utiliser ces travaux, incluant des utilisations commerciales, sans aucune restriction.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 638cc552-4ca9-43c0-8cad-d3f570a4572e. Ghent University publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Belgian Biodiversity Platform.
Mots-clé
Acoustic telemetry; Acoustic Telemetry; animal movement; animal tracking; biologging; LifeWatch; VEMCO; Data; Migration; Occurrence; Observation
Contacts
https://orcid.org/0000-0002-2610-6941
- Créateur
- Fournisseur Des Métadonnées ●
- Créateur
- Créateur
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Couverture géographique
ANE, Belgium, Belgian Coast (http://marineregions.org/mrgid/2550); ANE, North Sea (http://marineregions.org/mrgid/2350); ANE, Western Scheldt (http://marineregions.org/mrgid/4752); Belgium, Dijle (http://marineregions.org/mrgid/3098); Belgium, Flanders (http://marineregions.org/mrgid/2469); Belgium, Scheldt (http://marineregions.org/mrgid/2542); Belgium, Zeeschelde, Antwerp Harbour (http://marineregions.org/mrgid/5481).
| Enveloppe géographique | Sud Ouest [51,002, 2,573], Nord Est [51,668, 5,109] |
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Couverture taxonomique
Pas de description disponible
| Species | Anguilla anguilla (Linnaeus, 1758) |
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Couverture temporelle
| Date de début / Date de fin | 2015-04-18 / 2020-08-08 |
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Métadonnées additionnelles
| Identifiants alternatifs | https://ipt.inbo.be/resource?r=2015_phd_verhelst_eel |
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