Skip to Main content Skip to Navigation
Reports

Estimation en France des densités d’anguilles jaunes d’Europe (Anguilla anguilla) basée sur leur diffusion dans les bassins versants : Modèle TABASCO (spaTialized Anguilla BASin COlonisation). Rapport final année 3.

Abstract : The probabilistic approach of the EDA model led us to experiment an alternative modelling method named TABASCO for « spaTialized Anguilla BASin COlonization assessment model ». TABASCO should be considered as an intermediary between strictly statistical approaches and mechanistic models. It is based on the spread of a cohort of eels formalized by a Gaussian distribution through an oriented graph associated to the hydrographic network of a catchment. The result of this diffusion process should allow to estimate the distribution and the number of yellow eels at the end of the colonization of a catchment. A work of C++ coding, together with a calibration with the electrofishing data of a reference catchment (Gironde) led to a stable version of the model. The code has then been adapted to take into account all the catchments whom outlet is located in metropolitan France, which represents a total of 953 catchments and a 500979 km2 surface (90,81 % of the metropolitan France). The calibration is now carried out year per year between 1990 and 2009, and an « EMU » (Eel Management Units) effect has been added to take into account the geographical distribution of the eels when they arrive at the french coasts, thus refining the model predictions. Moreover, the features of TABASCO have been planned to assess upstream mortalities and to compare them with downstream mortalities. This technical report includes a discussion of the results and a diagnosis in order to improve or rectify the modelling later.
Mots-clés : TABASCO MODELE FRANCE
Document type :
Reports
Complete list of metadata

Cited literature [85 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02602321
Contributor : Migration Irstea Publications Connect in order to contact the contributor
Submitted on : Saturday, May 16, 2020 - 7:40:55 AM
Last modification on : Friday, June 10, 2022 - 3:14:02 PM

File

pub00046241.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-02602321, version 1
  • IRSTEA : PUB00046241

Citation

J. Domange, Hilaire Drouineau, Cédric Briand, Laurent Beaulaton, Patrick Lambert. Estimation en France des densités d’anguilles jaunes d’Europe (Anguilla anguilla) basée sur leur diffusion dans les bassins versants : Modèle TABASCO (spaTialized Anguilla BASin COlonisation). Rapport final année 3.. [Rapport de recherche] irstea. 2016, pp.93. ⟨hal-02602321⟩

Share

Metrics

Record views

12

Files downloads

24