Alternative flood tide transport tactics in catadromous species: Anguilla anguilla, Liza ramada and Platichthys flesus

International audience Flood Tide Transport (FTT) was investigated using experimental annular flumes and analysed by Maximum Entropy Spectral Analysis (MESA) to compare 3 species which use FTT: thinlip mullet Liza ramada, European eel Anguilla anguilla and European flounder Platichthys flesus. Juven...

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Bibliographic Details
Published in:Estuarine, Coastal and Shelf Science
Main Authors: Trancart, Thomas, Lambert, Patrick, Rochard, Eric, Daverat, Françoise, Coustillas, Julien, Roqueplo, Charles
Other Authors: Ecosystèmes estuariens et poissons migrateurs amphihalins (UR EPBX), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2012
Subjects:
[SDE]Environmental Sciences
Anguilla anguilla
European eel
Online Access:https://hal.inrae.fr/hal-02596986
https://doi.org/10.1016/j.ecss.2011.12.032
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Summary:International audience Flood Tide Transport (FTT) was investigated using experimental annular flumes and analysed by Maximum Entropy Spectral Analysis (MESA) to compare 3 species which use FTT: thinlip mullet Liza ramada, European eel Anguilla anguilla and European flounder Platichthys flesus. Juvenile fishes were submitted to experimental conditions simulating estuarine conditions in order to induce a behavioural rhythm which can be deemed comparable to FTT. MESA highlighted several behavioural rhythms within the same time series. The three species exhibited tidal rhythms in relation to time of day of migration, social behaviour and behaviour during ebb-tides. We hypothesise that ecological and morphological traits could induce these behaviours and indicate that it is possible to predict FTT variations for all catadromous species using diet ecology and morphology.

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