EDP Baixo Sabor: Fishes – Ecological Monitoring Program [2012]

Latest version published by EDP - Energias de Portugal on Apr 13, 2021 EDP - Energias de Portugal

The dataset contains records of Fishes (Pisces) collected in the lower valley of River Sabor (NE Portugal) in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A, to evaluate the impacts of dam construction in the fish communities and water quality of the river. This dataset refers to the year of 2012, during the construction process. Fishes were captured in 16 sampling stations by electrofishing (with restitution) in speing and autumn of 2012. A total of 2214 records of 11 species and one genus were obtained.

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 32 records. 1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

  • Event (core)
    32
  • Occurrence 
    384

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 32 records in English (21 KB) - Update frequency: unknown
Metadata as an EML file download in English (16 KB)
Metadata as an RTF file download in English (14 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Mota P, Vingada J V, Diogo H, Ferreira J, Múrias T (2021): edp_sabor_fish_2012. v1. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=edp_sabor_fish_2012&v=1.0

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 891df84a-96d6-44ea-bab0-6471d51acff0.  EDP - Energias de Portugal publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.

Keywords

Fish; electric fishing; ecological monitoring program; Water Framework Directive; Baixo Sabor dam

Contacts

Who created the resource:

Paulo Mota
General Coordinator
BIOLINK - Consultoria Ambiental, Unipessoal, Lda Praceta Caminho da Cruz, 9 4405-625 VN Gaia Vila Nova de Gaia PT
José Vítor Vingada
Scientific and Fieldwork Coordinator
BIOLINK - Consultoria Ambiental, Unipessoal, Lda Praceta Caminho da Cruz, 9 4405-625 VN Gaia Vila Nova de Gaia PT
Hugo Diogo
Technician
BIOLINK - Consultoria Ambiental, Unipessoal, Lda PT
Joana Ferreira
Technician
BIOLINK - Consultoria Ambiental, Unipessoal, Lda PT

Who can answer questions about the resource:

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

Who filled in the metadata:

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

Geographic Coverage

Data were collected along the lower Sabor river valley, from the mouth to the Maçãs river, about 70 km upstream, as well as in the Vilariça stream, in the municipalities of Torre de MData were collected along the lower Sabor river valley, from the mouth to the Maçãs river, about 70 km upstream, as well as in the Vilariça stream, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Bragança and Vimioso.oncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Bragança and Vimioso.

Bounding Coordinates South West [41.111, -7.366], North East [41.624, -6.498]

Taxonomic Coverage

The taxonomic coverage of this dataset spans 1 phylum, 1 class, 2 orders, 5 families, 11 genera and 11 species.

Phylum  Chordata
Class  Actinopterygii
Order  Cypriniformes,  Cyprinodontiformes,  Perciformes
Family  Cobitidae,  Cyprinidae,  Poeciliidae,  Centrarchidae,  Percidae

Temporal Coverage

Start Date / End Date 2012-05-28 / 2012-10-11

Project Data

The dataset contains records of Fishes (Pisces) collected in the lower valley of River Sabor (NE Portugal) in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. Data were collected in May and October, 2012, during field visits to 16 sampling staiond located along the lower Sabor valley up to 70 km, and in the Vilariça stream. The occurrence of the target taxa was documented through 2214 records of individuals. The most abundant species (>200 records) were Luciobarbus bocagei (770 individuals), Lepomis gibbosus (525), Squalius caroliterii (281) and Pseudochondrostoma duriense (216)

Title EDP Baixo Sabor: Fishes – Ecological Monitoring Program [2012]
Identifier EDP Biodiversity Data
Funding The work was funded by EDP - Energias de Portugal, S.A.
Study Area Description The study was conducted in the lower part of the sub-basin of river Sabor, covering all the stretches affected by the Feiticeiro and Baixo Sabor dams and a control area upstream, up to 70 kms from the Sabor mouth, as well as the Vilariça stream.
Design Description The objective of the study was to characterize fish community dynamics to indicate changes in the ecological quality of river ecosystems in the lower Tua sub-basin, along all the stretch affected by the dam and in several control sampling stations upstream, during the dam construction (2008-2014).

The personnel involved in the project:

Author
Paulo Mota
Author
José Vítor Vingada
Author
Hugo Diogo
Author
Joana Ferreira
Metadata Provider
Tiago Múrias

Sampling Methods

The capture method employed was electric fishing and the samples were taken during the day, by a team of three to four elements, using a portable device with a gasoline generator set with pulsed direct current output, fixed with generator (to operate from the margin or from a vessel) or back transport with an explosion engine or battery, with the recommended characteristics: 200-1000V, power 0.8 - 2.5 KVA. The methodology adopted depended also on the depth of the section to be sampled. In small watercourses, fishing was carried out from the margin, in the upstream downstream direction, with the rapid immersion of the anode with the current already on, and the operator taking care to avoid denounce its presence. In larger water courses, harvest was carried out by two operators walking slowly upstream the initial point, describing a zigzag between the 2 margins, covering all habitats and fleeing the sheltered fishes. In conditions prone to promote a high escape behavior (high transparency water with low shelter conditions), the operators only unloaded the current after a period of immobilization with the electrodes already in the water (minimum 20 – 30 seconds). In these cases, and in all situations where most fish tended to escape upstream avoiding capture, an attempt was made, whenever possible, to previously close the section at the ends with fine mesh net, in order to increase the efficiency of fishing. The harvested specimens were handled carefully. Sampling was carried out in several periods lasting no more than 30 minutes to avoid fish mortality. During sampling, 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, or in a net apparatus plunged into the sampled water course, in a place not subjected to electric current . The usual safety measures for working with electrofishing were strictly followed. The identification of the specimens up to the species was carried out on the spot, based on external characters. Small specimens that did not yet differ specific external characters were identified at the gender level. All individuals whose length was greater than 40 mm were measured with a 1 mm precision. Those below that threshold were not measured, and only their number was recorded. If the number of specimens were very high in a given sample, only a sub-sample of 50 individuals was measured. After these procedures, all specimens were returned to their habitat in the vicinity of the capture sites with suitable conditions without current (INAG, 2008). In the original dataset the single individual of the genus Cobitis captured was assigned to Cobitis calderoni, but the identification is doubtful because the species is not expected to occur in the Sabor watershed.

Study Extent The data were collected along the Sabor lower valley (Northeast Portugal), up to 70 kms from the mouth, and in the Vilariça stream, in the municipalities of Torre de Moncorvo, Alfândega da Fé, Mogadouro, Macedo de Cavaleiros, Bragança and Vimioso.
Quality Control All identificatons were performed by accredited technicians

Method step description:

  1. To be completed

Bibliographic Citations

  1. INAG, I.P. 2008. Manual para a avaliação biológica da qualidade da água em sistemas fluviais segundo a Directiva Quadro da Água - Protocolo de amostragem e análise para a Fauna Piscícola. Ministério do Ambiente, do Ordenamento do Território e do Desenvolvimento Regional. Instituto da Água, I.P.

Additional Metadata

Purpose This dataset is part of a broader initiative whereby the company EDP - Energias de Portugal S.A. will make available all biodiversity data collected during impact assessment and biological monitoring studies.
Maintenance Description This resource will be regularly checked for accuracy.
Alternative Identifiers 891df84a-96d6-44ea-bab0-6471d51acff0
http://ipt.gbif.pt/ipt/resource?r=edp_sabor_fish_2012