Evento de muestreo

EDP Foz Tua: Bivalvia – Complementary Studies [2011]

Última versión Publicado por EDP - Energias de Portugal en 27 de junio de 2018 EDP - Energias de Portugal
Fecha de publicación:
27 de junio de 2018
Licencia:
CC-BY 4.0

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 31 registros en Inglés (17 KB) - Frecuencia de actualización: irregular
Metadatos como un archivo EML descargar en Inglés (18 KB)
Metadatos como un archivo RTF descargar en Inglés (15 KB)

Descripción

The dataset contains records of freshwater bivalves (Mollusca, Bivalvia) collected in the rivers Tua, Tuela and Rabaçal, in the scope of 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 July and October 2011, during field visits to 31 fixed stations.The main taxa targeted during the field visits were species from the families Unionidae, Margaritiferidae, Sphaeriidae and Cyrenidae.

Registros

Los datos en este recurso de evento de muestreo 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 31 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)
31
Occurrence 
248

Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.

Versiones

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:

Reis J, Rodrigues P, Pires D, Pinheiro P, Madeira J, Múrias T (2018): EDP Foz Tua: Bivalvia – Complementary Studies [2011]. v1.2. EDP - Energias de Portugal. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=edp_tua_bivalves_cs&v=1.2

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es EDP - Energias de Portugal. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 08516469-1a7c-42fe-800b-f864d4521f71.  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 bivalves; Bivalvia; Unio delphinus; Anodonta anatina; Margaritifera margaritifera; Potomida littoralis; Corbicula fluminea; Sphaerium corneum; Pisidium casertanum; Pisidium personatum; Pisidium subtruncatum

Contactos

Joaquim Reis
  • Originador
Principal investigator
BIOTA - Estudos e Divulgação em Ambiente, Lda
ABC - Convento de São Miguel das Gaeiras
2510-718 Gaeiras Óbidos
PT
Patrícia Rodrigues
  • Originador
Researcher
BIOTA - Estudos e Divulgação em Ambiente, Lda
ABC - Convento de São Miguel das Gaeiras
2510-718 Gaeiras Óbidos
PT
Daniel Pires
  • Originador
Researcher
BIOTA - Estudos e Divulgação em Ambiente, Lda
ABC - Convento de São Miguel das Gaeiras
2510-718 Gaeiras Óbidos
Paulo Pinheiro
  • Autor
Manager
AQUALOGUS - Engenharia e Ambiente, Lda.
Rua do Mar da China, Nº 1, Escritório 2.4, Parque das Nações
1990-137 Lisboa Lisboa
PT
João Madeira
  • Proveedor De Los Metadatos
  • Originador
  • Punto De Contacto
Manager
EDP - Energia de Portugal
Av. 24 de Julho, 12, Torre Nascente, Piso 4
1249-300 Lisboa Lisboa
PT
Tiago Múrias
  • Originador
Researcher
CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto
Campus Agrário de Vairão
4485-661 Vila do Conde
PT
Paulo Pinheiro
  • Autor
General coordination
Aqualogus
Rua do Mar da China, Nº 1, Escritório 2.4, Parque das Nações
Lisboa
PT

Cobertura geográfica

The data was collected at 30 field stations along the valleys of rivers Tua, Tuela and Rabaçal (Northeast Portugal, Europe), within the municipalities of Alijó, Carrazeda de Ansiães, Mirandela, Macedo de Cavaleiros and Valpaços.

Coordenadas límite Latitud Mínima Longitud Mínima [41,079, -7,619], Latitud Máxima Longitud Máxima [41,719, -7,114]

Cobertura taxonómica

The taxonomic coverage of this dataset spans 1 class, 2 orders, 4 families and 8 species. All individuals were identified to the species level.

Reino Animalia
Filo Mollusca
Class Bivalvia (Bivalves)
Orden Unionoida, Veneroida
Familia Unionidae, Margaritiferidae, Cyrenidae, Sphaeriidae

Cobertura temporal

Fecha Inicial / Fecha Final 2011-07-07 / 2011-10-27

Datos del proyecto

The dataset contains records of freshwater bivalves (Mollusca, Bivalvia) collected in the rivers Tua, Tuela and Rabaçal, which are 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 July and October 2011, during field visits to 30 fixed stations.The main taxa targeted during the field visits were species from the families Unionidae, Margaritiferidae, Sphaeriidae and Cyrenidae. A total of 2072 specimes were identified, of which 1055 Unio delphinus, 329 Corbicula fluminea, 314 Anodonta anatina, 295 Potomida litoralis, 20 Margaritifera margaritifera, 48 Pisidium nitidum, 8 P. casertanum and 3 P. subtruncatum.

Título Complementary Studies to the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam – Freshwater bivalves data (EC 48)
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. It encompassed a total length of 112 km of river, of which 57 in river Tua, 28 in river Rabaçal, and 27 in river Tuela.
Descripción del diseño The objective of the study was to establish in detail the current distribution, extent of occurrence and abundances of the various species of freshwater bivalves in the Tua river sub-basin, in order to fill gaps of knowledge that the EIA had acknowledged but not addressed, as well as to obtain relevant data for the analysis of the impacts of AHFT.

Personas asociadas al proyecto:

Joaquim Reis
  • Autor
Patrícia Rodrigues
  • Autor
Daniel Pires
  • Autor
Paulo Pinheiro
  • Autor

Métodos de muestreo

Sampling was designed to obtain complementary data: (1) a general characterization of the freshwater bivalve communities (presence/absence and Capture per Unit Effort only), using 19 field stations located every 2 km in the lenthic zone (lower Tua) and every 5 km in the lothic zone (upper Tua and lower Tuela and Rabaçal), totalizing 31 field stations, and (2) a detailed characterization aiming to quantify the abundances at community and population levels, using a restricted number of field stations (5 in river Tua, 2 in river Tuela and 1 in river Rabaçal), roughly 10 km apart. The method used to perform the general characterization of the communities was random visual search of the river bottom in each field station, using “snorkeling” in clear water of less than 1 m deep. All bivalves found were counted, identified, measured (shell length) and weighted, before being returned to the habitat. A relative count (number/hour/observer) of all bivalves present was made in each field station. The characterization of the riverbed substrate was included, by estimating the relative proportion of rock, pebble, gravel, sand and mud present), as well as a characterization of the riparian vegetation, using a simplified version of the River Habitat Survey (RHS) methodology. To sample small bivalves fully buried in the substrate (sphaeriidae: genus Pisidium, Sphaerium and Musculium; Cyrenidae: genus Corbicula; Unionidae and Margaritiferidae: juveniles only) a modified kick-sampling method was applied using a hand net of 0.5 mm mesh in suitable habitats for these specimens (fine sediments near the margins, roots, underwater vegetation, etc). The captured specimens were sorted and preserved in 96% alcohol for subsequent identification in the lab. The results (presence/absence, total numbers and relative numbers) were used to define homogeneous sectors of rivers regarding the bivalve communities, either by using objective landmarks (e.g., small dams, orographic features, confluence of two water lines), or subjectively, using the station or the medium point between stations. For detailed characterization, 10 transects of 1 m wide perpendicular to the river (independently of the river’s width) were surveyed in each station by 2-3 technicians by scuba diving. All animals found were identified, counted and processed as above. These data were used to estimate the densities present in each station (expressed as number of bivalves/100 meters of river, by multiplying the number of captures for all transects combined by 10). The number of individual per sector of river (as defined above) was found by multiplying the average value of abundance per 100 m of river from the various stations of a given sector by the coefficient corresponding to the length of that sector (for example, for a sector of 10 km multiplied by the factor 100).

Área de Estudio The study was carried out in 31 fixed stations covering the whole length of river Tua (19 stations) and the lower valleys of rivers Tuela (6 stations) and Rabaçal (6 stations). Sampling took place between 5-14 July and 25-27 October 2011.
Control de Calidad All individuals was identified by experienced researchers with a deep knowledge of the Iberian freshwater mussels

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 08516469-1a7c-42fe-800b-f864d4521f71
http://ipt.gbif.pt/ipt/resource?r=edp_tua_bivalves_cs