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EDP Foz Tua: Bivalvia – Complementary Studies [2011]

Versão mais recente publicado por EDP - Energias de Portugal em Jun 27, 2018 EDP - Energias de Portugal

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 de Dados

Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 31 registros. Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.

  • Event (core)
    31
  • Occurrence 
    248

Este IPT armazena os dados e, portanto, serve como um repositório de dados. Os dados e os metadados do recurso estão disponíveis para download no seção de downloads. A tabela de versões lista outras versões do recurso que foram disponibilizadas ao público e permite o rastreamento das alterações realizadas no recurso ao longo do tempo.

Downloads

Baixe a última versão do recurso de dados, como um Darwin Core Archive (DwC-A) ou recurso de metadados, como EML ou RTF:

Dados como um arquivo DwC-A download 31 registros em English (17 KB) - Frequência de atualização: irregular
Metadados como um arquivo EML download em English (17 KB)
Metadados como um arquivo RTF download em English (15 KB)

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

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

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é EDP - Energias de Portugal. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 08516469-1a7c-42fe-800b-f864d4521f71.  EDP - Energias de Portugal publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Portugal.

Palavras-chave

Occurrence; Observation; freshwater bivalves; Bivalvia; Unio delphinus; Anodonta anatina; Margaritifera margaritifera; Potomida littoralis; Corbicula fluminea; Sphaerium corneum; Pisidium casertanum; Pisidium personatum; Pisidium subtruncatum

Contatos

Quem criou esse recurso:

Joaquim Reis
Principal investigator
BIOTA - Estudos e Divulgação em Ambiente, Lda ABC - Convento de São Miguel das Gaeiras 2510-718 Gaeiras Óbidos PT
Patrícia Rodrigues
Researcher
BIOTA - Estudos e Divulgação em Ambiente, Lda ABC - Convento de São Miguel das Gaeiras 2510-718 Gaeiras Óbidos PT
Daniel Pires
Researcher
BIOTA - Estudos e Divulgação em Ambiente, Lda ABC - Convento de São Miguel das Gaeiras 2510-718 Gaeiras Óbidos
Paulo Pinheiro
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
Manager
EDP - Energia de Portugal Av. 24 de Julho, 12, Torre Nascente, Piso 4 1249-300 Lisboa Lisboa PT
Tiago Múrias
Researcher
CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto Campus Agrário de Vairão 4485-661 Vila do Conde PT

Quem pode responder a perguntas sobre o recurso:

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

Quem preencher os metadados:

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

Quem mais foi associado com o recurso:

Autor
Paulo Pinheiro
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 delimitadoras Sul Oeste [41.079, -7.619], Norte Leste [41.719, -7.114]

Cobertura Taxonômica

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)
Ordem  Unionoida,  Veneroida
Família  Unionidae,  Margaritiferidae,  Cyrenidae,  Sphaeriidae

Cobertura Temporal

Data Inicial / Data final 2011-07-07 / 2011-10-27

Dados Sobre o Projeto

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
Financiamento The work was funded by EDP - Energias de Portugal, S.A.
Descrição da Área de Estudo 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.
Descrição do Design 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.

O pessoal envolvido no projeto:

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

Métodos de Amostragem

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 Estudo 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.
Controle de Qualidade All individuals was identified by experienced researchers with a deep knowledge of the Iberian freshwater mussels

Descrição dos passos do método:

  1. To be completed

Metadados Adicionais

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.
Descrição da manutenção 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