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EDP Foz Tua: Fish – Complementary Studies [2011]

Última versión Publicado por EDP - Energias de Portugal en 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.


Los datos en este evento de muestreo recurso 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 17 registros. también existen 1 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.

  • Event (core)
  • Occurrence 

Este IPT archiva los datos, sirviendo así como repositorio de datos. Los datos y metadatos están disponibles para descargar en la sección de descargas. La tabla de versiones muestra otras versiones del recurso que se han hecho accesibles al público y permite el seguimiento de los cambios hechos al recurso en el tiempo.


Descargue la última versión de los datos como un Archivo Darwin Core (DwC-A) o los metadatos como EML o RTF:

Datos como un archivo DwC-A descargar 17 registros en Inglés (14 KB) - Frecuencia de actualización: irregular
Metadatos como un archivo EML descargar en Inglés (17 KB)
Metadatos como un archivo RTF descargar en Inglés (14 KB)


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

¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

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.


Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: a3533a61-6f88-443e-89ae-37611ea88267.  EDP - Energias de Portugal publica este recurso, y está registrado en GBIF como un publicador de datos avalado por GBIF Portugal.

Palabras Clave

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


¿Quién creó el recurso?:

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

¿Quién puede resolver dudas acerca del recurso?:

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

¿Quién documentó los metadatos?:

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

¿Quién más está asociado con el recurso?:

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

Cobertura Geográfica

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

Coordenadas límite Latitud Mínima Longitud Mínima [41.22, -7.494], Latitud Máxima Longitud Máxima [41.665, -7.103]

Cobertura Taxonómica

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.

Reino  Animalia
Filo  Chordata
Class  Actinopterygii,  Cephalaspidomorphi
Orden  Cypriniformes,  Petromyzontiformes,  Salmoniformes,  Perciformes,  Cyprinodontiformes
Familia  Cobitidae,  Cyprinidae,  Petromyzontidae,  Salmonidae,  Centrarchidae,  Poeciliidae

Cobertura Temporal

Fecha Inicial / Fecha Final 2011-08-23 / 2011-08-30

Datos del Proyecto

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.

Título Complementary Studies to the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam – Freshwater fish data (EC 47)
Identificador EDP Biodiversity Data
Fuentes de Financiación The work was funded by EDP - Energias de Portugal, S.A.
Descripción del Área de Estudio 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.
Descripción del Diseño 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.

Personas asociadas al proyecto:

Paulo Pinheiro
Francisco Godinho
Amílcar Teixeira

Métodos de Muestreo

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).

Área de Estudio 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).
Control de Calidad All fish was identified by experienced researchers with a deep knowledge of the local icthyofauna.

Descripción de la metodología paso a paso:

  1. To be completed

Metadatos Adicionales

Propósito 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.
Descripción de mantenimiento This resource will be regularly checked for accuracy.
Identificadores Alternativos a3533a61-6f88-443e-89ae-37611ea88267