2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium)

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Descripción

This is an acoustic telemetry dataset published by Ghent University. It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network <a href="https://lifewatch.be/en/fish-acoustic-receiver-network"> (https://lifewatch.be/en/fish-acoustic-receiver-network)</a> 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 (<i>Anguilla anguilla</i>) 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 <a href="https://inbo.github.io/etn/">etn</a> package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (<a href="https://lifewatch.be/etn/">https://lifewatch.be/etn/</a>) and are available in Verhelst et al. (2020, <a href="https://doi.org/10.14284/434">https://doi.org/10.14284/434</a>).

Registros

Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 81.302 registros.

Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.

Versiones

La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.

Versión	Publicado el	Registros	Resumen de cambios	Última modificación por
1.3	2025-03-26 15:40:18	81.302	Reinstate 6 records.	Peter Desmet
1.1	2025-03-26 15:20:37	81.296	Correct missing time information in eventDate. 6 records removed.	Peter Desmet
1.0	2024-09-18 18:24:19	81.302	No proveído	Peter Desmet

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¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

Verhelst P, Reubens J, Coeck J, De Maerteleire N, Desmet P, Gelaude E, Mouton A, Pieters S, Reyserhove L, Robberechts K, Moens T (2025). 2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium). Version 1.3. Ghent University. Occurrence dataset. https://doi.org/10.14284/434

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es Ghent University. En la medida de lo posible según la ley, el publicador ha renunciado a todos los derechos sobre estos datos y los ha dedicado al Dominio público (CC0 1.0). Los usuarios pueden copiar, modificar, distribuir y utilizar la obra, incluso con fines comerciales, sin restricciones.

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 638cc552-4ca9-43c0-8cad-d3f570a4572e. Ghent University publica este recurso y está registrado en GBIF como un publicador de datos avalado por Belgian Biodiversity Platform.

Palabras clave

Acoustic telemetry; Acoustic Telemetry; animal movement; animal tracking; biologging; LifeWatch; VEMCO; Data; Migration; Occurrence; Observation

Contactos

Pieterjan Verhelst

Originador ●
Punto De Contacto

Ghent University

https://orcid.org/0000-0002-2610-6941

Jan Reubens

Originador

Flanders Marine Institute (VLIZ)

https://orcid.org/0000-0002-9823-5670

Johan Coeck

Originador