The effect of the sampling strategy on biomonitoring results

Armynot Du Châtelet, Eric

Document type :

Communication dans un congrès avec actes

Title :

The effect of the sampling strategy on biomonitoring results

Author(s) :

Armynot Du Châtelet, Eric [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]

Conference title :

BIOFOM 2019

City :

Sao Paulo

Country :

France

Start date of the conference :

2019-05-13

HAL domain(s) :

Sciences de l'environnement/Biodiversité et Ecologie

English abstract : [en]

Foraminifera (Rhizaria) are single-celled organisms with marine and brackish affinities. They are regarded as valuable bioindicators in transitional areas such as tidal flat and salt marshes. The biomonitoring is the ...
Show more >Foraminifera (Rhizaria) are single-celled organisms with marine and brackish affinities. They are regarded as valuable bioindicators in transitional areas such as tidal flat and salt marshes. The biomonitoring is the analysis of the species content of samples in order to characterize the environmental status of a given place. The environmental characteristics in aquatic system (both organic and inorganic component) are however under pressure and highly variable. Even situated at short distance quantification/measurement could be different between two samples. As a consequence, the crucial question of the sampling strategy will rise. Most of the studies using foraminifera for biomonitoring were using a single sample. Taken into account the spatial variability, more than two samples in a single place are then mandatory. The objective of the talk is therefore to define the minimum required number of replicates for capturing the variability of the living fauna. Three questions could be asked. How many samples are needed? Which methods should be used to capture the spatial variability? Which could be the influence of the sampling strategy on the biomonitoring results? To answer these questions I propose a review on the scientific results on the topic and a presentation of recent experiment on the subject.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL

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