Descrição
The aim of the project was to assess the effect of regulation and weirs on diversity of river benthic macroinvertebrates. Macroinvertebrates were sampled by four-minute kick-net sampling, using a 500-µm net. Samples were collected in spring and autumn 2019 from 19 stations along a 29-km reach of a the river Nea, between the lakes Heggsetsjøen and Selbusjøen. Samples were collected incloste to the weirs, one sample upstream a weir in a stationary part and one sample downstream a weir in a rapid. The samples were taken by holding the net downstream and kicking up the substrate while backing upstream. In stationary parts, the net was moved from side to side in front of the kicking feet to catch the material that was swirling up. All benthic groups were determined at the lowest possible taxonomic level and number of specimens was counted. Two different biological quality indices were calculated for the study reach to assess the ecological status of the river.
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 38 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.
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.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
Majaneva M (2023). Regulation effect in river Nea. Version 1.1. Norwegian Institute for Nature Research. Samplingevent dataset. https://ipt.nina.no/resource?r=regulationeffect_nea_19&v=1.1
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é Norwegian Institute for Nature Research. 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: 2d47b04b-b7db-4250-b1d0-cfdce7b1f2de. Norwegian Institute for Nature Research publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Norway.
Palavras-chave
Samplingevent; Specimen
Contatos
- Provedor Dos Metadados ●
- Originador ●
- Ponto De Contato
https://orcid.org/0000-0003-3884-2548
Cobertura Geográfica
River Nea, municipalities of Tydal and Selbu in Trøndelag county, Norway
| Coordenadas delimitadoras | Sul Oeste [63,107, 11,09], Norte Leste [63,202, 11,281] |
|---|
Cobertura Taxonômica
N/A
| Reino | Animalia |
|---|---|
| Filo | Mollusca, Arthropoda |
| Class | Insecta, Gastropoda, Arachnida |
| Ordem | Coleoptera, Diptera, Trichoptera, Incertae sedis, Ephemeroptera, Plecoptera |
| Família | Leuctridae, Elmidae, Heptageniidae, Polycentropodidae, Ameletidae, Arctopsychidae, Limnephilidae, Lymnaeidae, Chironomidae, Ephemerellidae, Nemouridae, Hydroptilidae, Baetidae, Perlodidae, Rhyacophilidae, Tipulidae, Simuliidae |
Cobertura Temporal
| Data Inicial / Data final | 2019-06-19 / 2019-10-09 |
|---|
Dados Sobre o Projeto
Nenhuma descrição disponível
| Título | the Norwegian Research Centre for Hydropower-Technology (HydroCen) |
|---|---|
| Financiamento | Research Council of Norway project number 257588 |
Métodos de Amostragem
Benthic macroinvertebrate samples from 19 stations in June and October 2019, using a 500-µm kick-net were collected. Sampling stations were chosen close to the weirs, where one station was downstream of the weir in a fast-flowing part of the river (rapids) and one station was upstream of the weir in a stationary part of each weir pool. The samples were taken by holding the net downstream and kicking up the substrate while backing upstream. In stationary parts, the net was moved from side to side in front of the kicking feet to catch the material that was swirling up. Different instream habitats were sampled proportionally to their existence in the stations following standardized methodology. Four-minute kick samples were collected to reach reliable measures of biodiversity.
| Área de Estudo | River Nea, municipalities of Tydal and Selbu in Trøndelag county, Norway |
|---|
Descrição dos passos do método:
- Samples were picked partly fresh and partly preserved in ethanol and all benthic groups were determined at the lowest possible taxonomic level and number of specimens was counted by an expert with over 30 years of experience in benthic macroinvertebrate analyses in the area.
Metadados Adicionais
| Identificadores alternativos | 2d47b04b-b7db-4250-b1d0-cfdce7b1f2de |
|---|---|
| https://ipt.nina.no/resource?r=regulationeffect_nea_19 |