Description
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.
Enregistrements de données
Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 38 enregistrements.
1 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.
Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
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
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Norwegian Institute for Nature Research. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 2d47b04b-b7db-4250-b1d0-cfdce7b1f2de. Norwegian Institute for Nature Research publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Norway.
Mots-clé
Samplingevent; Specimen
Contacts
- Fournisseur Des Métadonnées ●
- Créateur ●
- Personne De Contact
https://orcid.org/0000-0003-3884-2548
Couverture géographique
River Nea, municipalities of Tydal and Selbu in Trøndelag county, Norway
| Enveloppe géographique | Sud Ouest [63,107, 11,09], Nord Est [63,202, 11,281] |
|---|
Couverture taxonomique
N/A
| Kingdom | Animalia |
|---|---|
| Phylum | Mollusca, Arthropoda |
| Class | Insecta, Gastropoda, Arachnida |
| Order | Coleoptera, Diptera, Trichoptera, Incertae sedis, Ephemeroptera, Plecoptera |
| Family | Leuctridae, Elmidae, Heptageniidae, Polycentropodidae, Ameletidae, Arctopsychidae, Limnephilidae, Lymnaeidae, Chironomidae, Ephemerellidae, Nemouridae, Hydroptilidae, Baetidae, Perlodidae, Rhyacophilidae, Tipulidae, Simuliidae |
Couverture temporelle
| Date de début / Date de fin | 2019-06-19 / 2019-10-09 |
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Données sur le projet
Pas de description disponible
| Titre | the Norwegian Research Centre for Hydropower-Technology (HydroCen) |
|---|---|
| Financement | Research Council of Norway project number 257588 |
Méthodes d'échantillonnage
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.
| Etendue de l'étude | River Nea, municipalities of Tydal and Selbu in Trøndelag county, Norway |
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Description des étapes de la méthode:
- 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.
Métadonnées additionnelles
| Identifiants alternatifs | 2d47b04b-b7db-4250-b1d0-cfdce7b1f2de |
|---|---|
| https://ipt.nina.no/resource?r=regulationeffect_nea_19 |