Biogeography for identifying microbial bioindicators reporting ecological status of coastal wetlands in the SUDOE area - Université de Pau et des Pays de l'Adour Accéder directement au contenu
Poster De Conférence Année : 2022

Biogeography for identifying microbial bioindicators reporting ecological status of coastal wetlands in the SUDOE area

Mégane Noyer
  • Fonction : Auteur correspondant
  • PersonId : 1323182
  • IdHAL : mnoyer

Connectez-vous pour contacter l'auteur
Christine Dupuy
François-Xavier Robin
  • Fonction : Auteur
Hélène Agogué
Olivier Phillippine
  • Fonction : Auteur
Balbina Nogales
  • Fonction : Auteur
Olga Lage
  • Fonction : Auteur
Isabelle Vitte
  • Fonction : Auteur
  • PersonId : 948708
Jjose Catita
  • Fonction : Auteur
Manuel Acevedo
  • Fonction : Auteur
Khalid Fahd
  • Fonction : Auteur
Olivier Zaouak
  • Fonction : Auteur
Javier Hernadez
  • Fonction : Auteur
Almudena Leal
  • Fonction : Auteur

Résumé

Coastal wetlands represent environments with important ecological issues, composed of a vast diversity of habitats and species and supporting many human activities. However, these environments are in sharp decline, and their deterioration threatens the benefits they provide. Indeed, climate change and human activities tend to modify the functional balance of these environments challenging the management choices. At present, ecosystem-based decision support tools are urgently needed to define management levers for preserving these environments and their biodiversity. It is in this context that the European BIOMIC project (Interreg SUDOE) aims to address this need by developing a toolbox of microbial and trophic bioindicators to assess the ecological status of coastal areas. BIOMIC proposes a biogeography analysis covering 53 coastal wetlands in the SUDOE area (Mediterranean and Atlantic coasts: France, Spain and Portugal) for the development of benthic microbial bioindicators based on environmental DNA approaches. A broad variety of environments have been selected, considering the representativeness and variety of coastal environments of the SUDOE area, and covering coastal management problems, coastal area rehabilitation and biodiversity protection. Microbial communities (bacteria, archaea, fungi) were characterized through 16S and 18S rRNA genes sequencing, and physicochemical parameters and pollutants (metals, pesticides, hydrocarbons) content were determined. Relationships between microbial communities and environmental parameters were evaluated via multivariate analyses including linear discriminant analyses effect size (LEfSe), indicator values (IndVal), threshold indicator taxa analysis (TITAN), MicrogAMBI and network analyses. Potential microbial bioindicators for monitoring the ecological quality of ecosystems in the SUDOE area were identified. Ultimately, BIOMIC aims to implement the use of these bioindicators in existing environmental quality assessment regulations, in order to provide an integrative toolbox combining different food web communities in water and sediment compartments. The identified bioindicators will then be validated by seasonal monitoring and mesocosm experiments.
Fichier non déposé

Dates et versions

hal-04142009 , version 1 (26-06-2023)

Identifiants

  • HAL Id : hal-04142009 , version 1

Citer

Mégane Noyer, Clélia Duran, Christine Dupuy, François-Xavier Robin, Hélène Agogué, et al.. Biogeography for identifying microbial bioindicators reporting ecological status of coastal wetlands in the SUDOE area. 3rd International Conference in Microbial Ecotoxicology (EcotoxicoMic 2022), Nov 2022, Montpellier, France. ⟨hal-04142009⟩
31 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More