Evaluating Silver Eel Escapement at a Large Scale Using Eel Density Analysis (EDA)
María Mateo
(1)
,
Estibaliz Díaz
(1)
,
Laurent Beaulaton
(2, 3)
,
Hilaire Drouineau
(4)
,
Carlos Antunes
(5)
,
Elsa Amilhat
(6)
,
Agnes Bardonnet
(7, 3)
,
Maria João Correira
(8)
,
José Lino Costa
(8)
,
Anna Costarrosa
(9)
,
Ramón J de Miguel Rubio
(10)
,
Isabel Domingos
(8)
,
Elisabe Faliex
(6)
,
Carlos Fernandez Delgado
(10)
,
María Korta
(1)
,
Mathilde Labedan
(2, 11)
,
Rui Monteiro
,
Ana Moura
(5)
,
Teresa Portela
(8)
,
Pierre Sagnes
(11)
,
Gaël Simon
(6)
,
Lluis Zamora
(9)
,
Cédric Briand
(12)
1
AZTI - Tecnalia
2 OFB - Office français de la biodiversité
3 MIAME - Pôle OFB-INRAE-Institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement
4 UR EABX - Ecosystèmes aquatiques et changements globaux
5 CIIMAR - Interdisciplinary Centre of Marine and Environmental Research [Matosinhos, Portugal]
6 CEFREM - Centre de Formation et de Recherche sur les Environnements Méditérranéens
7 ECOBIOP - Ecologie Comportementale et Biologie des Populations de Poissons
8 ULISBOA - Universidade de Lisboa = University of Lisbon = Université de Lisbonne
9 Instituto de Ecologia Acuatica
10 Universidad de Córdoba = University of Córdoba [Córdoba]
11 IMFT - Institut de mécanique des fluides de Toulouse
12 Institution d'aménagement de la Vilaine
2 OFB - Office français de la biodiversité
3 MIAME - Pôle OFB-INRAE-Institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement
4 UR EABX - Ecosystèmes aquatiques et changements globaux
5 CIIMAR - Interdisciplinary Centre of Marine and Environmental Research [Matosinhos, Portugal]
6 CEFREM - Centre de Formation et de Recherche sur les Environnements Méditérranéens
7 ECOBIOP - Ecologie Comportementale et Biologie des Populations de Poissons
8 ULISBOA - Universidade de Lisboa = University of Lisbon = Université de Lisbonne
9 Instituto de Ecologia Acuatica
10 Universidad de Córdoba = University of Córdoba [Córdoba]
11 IMFT - Institut de mécanique des fluides de Toulouse
12 Institution d'aménagement de la Vilaine
Laurent Beaulaton
- Fonction : Auteur
- PersonId : 183741
- IdHAL : laurent-beaulaton
- ORCID : 0000-0002-9614-8602
- IdRef : 074337637
Hilaire Drouineau
- Fonction : Auteur
- PersonId : 736117
- IdHAL : hilaire-drouineau
- ORCID : 0000-0001-9206-0040
- IdRef : 081231911
Rui Monteiro
- Fonction : Auteur
Pierre Sagnes
- Fonction : Auteur
- PersonId : 1304211
- IdHAL : pierre-sagnes
- ORCID : 0009-0008-4238-4344
Cédric Briand
- Fonction : Auteur
- PersonId : 184888
- IdHAL : cedric-briand
- ORCID : 0000-0002-7721-5195
- IdRef : 139774920
Résumé
The European eel population has declined over the last 50 years and is outside safe biological limits. In 2007, the European Commission enforced a regulation to ensure that all Member States implement Management Plans to achieve an escapement rate of 40% for silver eels. However, escapement is assessed using diverse methods, and therefore, estimates of different countries are not comparable. Thus, European scientists and managers face the challenge of finding a method that could be applied all along the European eel distribution range using widely available data. During the SUDOANG project, the Eel Density Analysis model (EDA) was used to estimate the silver eel escapement in Spain, France, and Portugal. EDA can estimate silver eel escapement at different scales (basin, EMU, country, international) using data from routine electrofishing surveys, such as those collected for the Water Framework Directive (WFD). EDA is based on open-source software and is widely applicable to European rivers. A chained river network in the three countries was built, including the hydrological attributes, the location, and the characteristics of 10,574 obstacles. A total of 46,118 electrofishing operations from 1985 to 2019 were also compiled and projected to the hydrographic network. Finally, EDA was implemented through the sub-models on eel presence–absence, density, size structure, and silvering. EDA estimated a total fluvial population of 12.3, 11.7, and 5.8 million silver eels for 2015 in France, Spain, and Portugal, respectively. Eel presence and abundance decreased as the altitude and the distance to the sea increased. Finally, by setting the cumulated height of dams to zero, EDA provided an estimate of the effect of habitat loss due to dams on the eel population. These results correspond to the first assessment of silver eels carried out simultaneously and with the same methodologies in three European countries.
Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Evaluating Silver Eel Escapement at a Large Scale Using Eel Density Analysis (EDA)
|
Résumé |
en
The European eel population has declined over the last 50 years and is outside safe biological limits. In 2007, the European Commission enforced a regulation to ensure that all Member States implement Management Plans to achieve an escapement rate of 40% for silver eels. However, escapement is assessed using diverse methods, and therefore, estimates of different countries are not comparable. Thus, European scientists and managers face the challenge of finding a method that could be applied all along the European eel distribution range using widely available data. During the SUDOANG project, the Eel Density Analysis model (EDA) was used to estimate the silver eel escapement in Spain, France, and Portugal. EDA can estimate silver eel escapement at different scales (basin, EMU, country, international) using data from routine electrofishing surveys, such as those collected for the Water Framework Directive (WFD). EDA is based on open-source software and is widely applicable to European rivers. A chained river network in the three countries was built, including the hydrological attributes, the location, and the characteristics of 10,574 obstacles. A total of 46,118 electrofishing operations from 1985 to 2019 were also compiled and projected to the hydrographic network. Finally, EDA was implemented through the sub-models on eel presence–absence, density, size structure, and silvering. EDA estimated a total fluvial population of 12.3, 11.7, and 5.8 million silver eels for 2015 in France, Spain, and Portugal, respectively. Eel presence and abundance decreased as the altitude and the distance to the sea increased. Finally, by setting the cumulated height of dams to zero, EDA provided an estimate of the effect of habitat loss due to dams on the eel population. These results correspond to the first assessment of silver eels carried out simultaneously and with the same methodologies in three European countries.
|
Auteur(s) |
María Mateo
1
, Estibaliz Díaz
1
, Laurent Beaulaton
2, 3
, Hilaire Drouineau
4
, Carlos Antunes
5
, Elsa Amilhat
6
, Agnes Bardonnet
7, 3
, Maria João Correira
8
, José Lino Costa
8
, Anna Costarrosa
9
, Ramón J de Miguel Rubio
10
, Isabel Domingos
8
, Elisabe Faliex
6
, Carlos Fernandez Delgado
10
, María Korta
1
, Mathilde Labedan
2, 11
, Rui Monteiro
, Ana Moura
5
, Teresa Portela
8
, Pierre Sagnes
11
, Gaël Simon
6
, Lluis Zamora
9
, Cédric Briand
12
1
AZTI - Tecnalia
( 481760 )
- Pasaia
- Espagne
2
OFB -
Office français de la biodiversité
( 1006416 )
- "Le Nadar" Hall C - 5 square Félix Nadar - 94300 Vincennes
- France
3
MIAME -
Pôle OFB-INRAE-Institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement
( 1097913 )
- France
4
UR EABX -
Ecosystèmes aquatiques et changements globaux
( 1002494 )
- 50 avenue de Verdun - Gazinet, F-33612 Cestas
- France
5
CIIMAR -
Interdisciplinary Centre of Marine and Environmental Research [Matosinhos, Portugal]
( 419650 )
- Matosinhos, Potugal
- Portugal
6
CEFREM -
Centre de Formation et de Recherche sur les Environnements Méditérranéens
( 251578 )
- 52, Avenue Paul Alduy, 66860 Perpignan Cedex. France
- France
7
ECOBIOP -
Ecologie Comportementale et Biologie des Populations de Poissons
( 1002169 )
- 173 Route de Saint-Jean-de-Luz RD 918
64310 ST PEE SUR NIVELLE
- France
8
ULISBOA -
Universidade de Lisboa = University of Lisbon = Université de Lisbonne
( 1114557 )
- Alameda da Universidade 1649-004 Lisboa
- Portugal
9
Instituto de Ecologia Acuatica
( 567987 )
- Espagne
10
Universidad de Córdoba = University of Córdoba [Córdoba]
( 154991 )
- Avd. Medina Azahara, 5 14071 Córdoba
- Espagne
11
IMFT -
Institut de mécanique des fluides de Toulouse
( 690 )
- Allée du Professeur Camille Soula
31400 Toulouse
France
- France
12
Institution d'aménagement de la Vilaine
( 215249 )
- Boulevard de Bretagne - BP 11 56130 La Roche-Bernard
- France
|
Licence |
Paternité
|
Version du document |
version éditeur
|
Public visé |
Scientifique
|
Numéro d'article |
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2022
|
Volume |
13
|
Numéro |
1
|
URL éditeur |
https://www.mdpi.com/2673-9976/13/1/95
|
Sous-type de document pour les Articles |
Research article
|
Financement |
|
Domaine(s) |
|
Thésaurus Inrae |
|
Mots-clés |
en
European eel, silver escapement, EDA model, habitat loss
|
DOI | 10.3390/blsf2022013095 |
Fichier principal
Mateo et al_2022_Evaluating Silver Eel Escapement at a Large Scale Using Eel Density Analysis.pdf ( 216.08 Ko
)
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