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EDP Foz Tua: Fish – Complementary Studies [2011]

Dernière version Publié par EDP - Energias de Portugal le May 8, 2018 EDP - Energias de Portugal

The dataset contains records of freshwater fishes collected in the Tua river sub-basin and included in the Complementary Studies to the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in August 2011, during field visits to 17 fixed stations. Sampling was made using electrofishing, and it targeted all fish species. The following species were recorded: Achondrostoma oligolepis, Cobitis calderoni, Gambusia holbrooki, Lampetra planeri, Lepomis gibbosus, Luciobarbus bocagei, Pseudochondrostoma duriense, Salmo trutta subsp. fario, Squalius alburnoides, Squalius carolitertii.

Enregistrements de données

Les données de cette ressource données d'échantillonnage 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 17 enregistrements. 1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

  • Event (noyau)
  • Occurrence 

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées des ressources sont disponibles au 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.


Téléchargez la dernière version de la ressource en tant qu'Archive Darwin Core (DwC-A), ou les métadonnées de la ressource au format EML ou RTF :

Données sous forme de fichier DwC-A (zip) télécharger 17 enregistrements dans Anglais (14 KB) - Fréquence de mise à jour: irrègulière
Métadonnées sous forme de fichier EML télécharger dans Anglais (17 KB)
Métadonnées sous forme de fichier RTF télécharger dans Anglais (14 KB)


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:

Pinheiro P, Godinho F, Oliveira J, Teixeira A, Murias T (2018): EDP Foz Tua: Fish – Complementary Studies [2011]. v1. EDP - Energias de Portugal. Dataset/Samplingevent.


Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : a3533a61-6f88-443e-89ae-37611ea88267.  EDP - Energias de Portugal publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Portugal.


Occurrence; Observation; Freshwater fish; Electrofishing; Mediterranean; Cobitis; Achondrostoma; Luciobarbus; Pseudochondrostoma; Squalius; Lampetra; Salmo; Lepomis; Gambusia


Personne ayant créé cette ressource:

Paulo Pinheiro
Aqualogus - Engenharia e Ambiente, Lda Rua do Mar da China, N.º 1 Escritório 2.4, Parque das Nações 1990-137 Lisboa PT
Francisco Godinho
Aqualogus - Engenharia e Ambiente, Lda PT
João Oliveira
Aqualogus - Engenharia e Ambiente, Lda
Amílcar Teixeira
Aqualogus - Engenharia e Ambiente, Lda

Personne pouvant répondre aux questions sur la ressource:

João Madeira
EDP - Energia de Portugal Av. 24 de Julho, 12, Torre Nascente, Piso 4 1249-300 Lisboa Lisbon PT

Personne ayant renseigné les métadonnées:

Tiago Murias
CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto Campus Agrário de Vairão 4485-661 Vairão PT

Autres personnes associées à la ressource:

Paulo Pinheiro
Aqualogus ~Engenharia e Amblente, Lda Rua do Mar da China, N.º 1 Escritório 2.4, Parque das Nações 1990-137 Lisboa Lisboa PT

Couverture géographique

The data was collected at 17 field stations along the valleys of rivers Tua, Tinhela, Tuela and Rabaçal (Northeast Portugal, Europe), within the municipalities of Alijó, Carrazeda de Ansiães, Murça, Mirandela, Macedo de Cavaleiros and Vinhais

Enveloppe géographique Sud Ouest [41.22, -7.494], Nord Est [41.665, -7.103]

Couverture taxonomique

The taxonomic coverage of this dataset spans 1 phylum, 2 classes, 5 orders, 6 families and 10 species. All individuals were identified to the species level.

Kingdom  Animalia
Phylum  Chordata
Class  Actinopterygii,  Cephalaspidomorphi
Order  Cypriniformes,  Petromyzontiformes,  Salmoniformes,  Perciformes,  Cyprinodontiformes
Family  Cobitidae,  Cyprinidae,  Petromyzontidae,  Salmonidae,  Centrarchidae,  Poeciliidae

Couverture temporelle

Date de début / Date de fin 2011-08-23 / 2011-08-30

Données sur le projet

The dataset contains records of freshwater fish collected in the rivers Tua, Tinhela, Tuela and Rabaçal, included in the Complementary Studies to the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in August 2011, during field visits to 17 fixed stations. Sampling was based on electrofishing and it targeted species from all fish families expected to occur in the basin (Cobitidae, Cyprinidae, Petromyzontidae, Salmonidae, Centrarchidae and Poeciliidae). A total of 1360 specimens were identified, of which 72 Cobitis calderoni, 21 Achondrostoma oligolepis, 346 Luciobarbus bocagei, 373 Pseudochondrostoma duriense, 74 Squalius alburnoides, 159 Squalius carolitertii, 1 Lampetra planeri, 62 Salmo trutta fario, 161 Lepomis gibbosus and 91 Gambusia holbrooki.

Titre Complementary Studies to the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam – Freshwater fish data (EC 47)
Identifiant EDP Biodiversity Data
Financement The work was funded by EDP - Energias de Portugal, S.A.
Description du domaine d'étude / de recherche The study was conducted in part of the sub-basin of river Tua, prior to the construction and subsequent flooding of the lower part of this river’s valley by the Foz-Tua Hydroelectric Dam, along the lower valleys of rivers Tua and Tinhela and the lower to intermediate sections of rivers Tuela and Rabaçal.
Description du design The objective of the study was to establish in detail the current distribution, abundances and ecology of the Northern Iberian spined-loach (Cobitis calderoni) and European eel (Anguilla anguilla) in the lower valley of the Tua river and its main tributaries, information not covered in sufficient detail in the EIA. The dataset includes information obtained for other species captured in the same sampling events.

Les personnes impliquées dans le projet:

Paulo Pinheiro
Francisco Godinho
João Oliveira
Amílcar Teixeira

Méthodes d'échantillonnage

Samples were taken during the day by electro-fishing, by a team of two or three elements, using a portable device with a gasoline generator set (for safety reasons used as a fixed element), with pulsed direct current output (Hans Grassl ELT 60II-HI, 500-1000 V, 1300W), or a portable rechargeable battery pack for dorsal transport with continuous pulse output (Hans Grassl IG200 / 2C; 400-1000 V; <70 Hz). The fishing was carried in the opposite direction of the current current. In the course of the work, the welfare of the captured specimens was ensured by depositing them in plastic buckets with portable oxygenators, which were kept in shelters at cover of direct sun exposure. The usual safety measures for working with electrofishing were strictly followed. The individuals of all taxa caught were identified up to the species and counted. In the specific case of Cobitis calderoni, the total length (in mm) was measured with the aid of an ichthyometer. After these procedures, the native specimens were returned to their habitat in the vicinity of the capture sites with suitable conditions; at the request of the Institute of Conservation of Nature and Forestry (ICNF), exotic individuals were eliminated. A brief environmental characterization of each station was made “in situ”. The parameters used were: (a) abundance (n./ha) of exotic species present, (b) width (m) of the waterline, (c) altitude, (d) area (km2) of the basin, (e) distance (km) to the river springs, (f) slope (‰), (g) average yearly temperature (º), (h) average temperature of July (º), (i) precipitation (mm), (j) predominant substrate (mud, sand, gravel, grit, stones, blocks, rock), (k) depth (m) and (l) current velocity (m/s).

Etendue de l'étude The study was carried out in 17 fixed stations covering the upper Tua (4 stations), Tinhela (2 stations), Tuela (1 station), Rabaçal (3 stations) and seven minor tributaries (Curros, Carvalhais, Macedo and Mentes, Rebousa, Milhais and Flagosa, 1 station each). Sampling was designed to sample areas of river with suitable habitat for Cobitis calderoni and Anguilla anguilla, covering the Tua river sub-basin. The maximum distance between stations was 5 km along the river Tua and its small tributaries up to the lower stretches of rivers Tuela and Rabaçal. Two additional stations located in these rivers were farther apart, but they were used because they contained suitable habitats for the species. Each station was sampled once in the summer of 2011 (23 to 30 of August).
Contrôle qualité All fish was identified by experienced researchers with a deep knowledge of the local icthyofauna.

Description des étapes de la méthode:

  1. To be completed

Métadonnées additionnelles

Objet This dataset is part of a broader initiative whereby the company EDP - Energias de Portugal S.A. will made available biodiversity data collected during impact assessment and biological monitoring studies.
Description de la fréquence de mise à jour This resource will be regularly checked for accuracy.
Identifiants alternatifs a3533a61-6f88-443e-89ae-37611ea88267