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Environmental studies

Documenting the biodiversity of your projects, from baseline to monitoring.

Local authorities, developers, environmental consultancies and project owners: environmental DNA provides non-invasive data for your biodiversity surveys, ecological baselines, impact assessments and biodiversity monitoring. LDgenX carries out the analyses and helps you interpret them in your process.

Environmental studies

Your field questions

Three questions at the heart of your projects.

Before choosing a technology, we take the time to understand the question, the environment and the information you need.

Which species use the site?

eDNA biodiversity surveys in water, soil or sediment, to complement field surveys during a baseline study.

Is a protected or invasive species present?

Detection of species of interest, by metabarcoding or by a targeted DNA assay when the question concerns one precise species.

How is the environment changing?

Repeated sampling with the same protocol, to monitor biodiversity over time, during and after the works.

The approaches offered

Tools chosen for your question.

  1. Environmental DNA

    DNA traces sampled from water, soil, sediment or biofilms, without capturing or disturbing the species.

  2. Metabarcoding

    A survey of many species at once, from targeted genetic markers (12S, COI, 18S, ITS…).

  3. Targeted dPCR assays

    Detection and quantification of the DNA of one precise species, with specific primers and a probe designed when needed.

  4. Microbial communities

    16S or ITS sequencing to characterise the bacterial and fungal communities of an environment.

Applications

  • Environmental impact assessments
  • Baseline environmental surveys
  • Biodiversity monitoring
  • Long-term environmental monitoring
  • Detection of protected species
  • Detection of invasive species
  • Ecological compensation
  • Land development projects
  • Onshore and offshore renewable energy projects

Case studies

  • eDNA biodiversity surveys
  • Early detection of invasive species
  • Environmental monitoring
  • Development of targeted dPCR assays for species monitoring

ERC sequence

Data to inform the ERC sequence

Data to inform the ERC sequence

The French “Éviter, Réduire, Compenser” sequence (avoid, reduce, compensate) organises how development projects take the environment into account. DNA analyses provide biodiversity data along the way, alongside naturalist surveys and ecological expertise.

  1. Avoid
  2. Reduce
  3. Compensate

eDNA biodiversity survey and search for protected or invasive species: spotting the issues early helps to avoid, then reduce impacts.

What you receiveList of the species detected per site, with their interpretation and limits.

eDNA reveals the presence of a species’ DNA in a sample; on its own it does not replace naturalist surveys and does not directly indicate the size of a population.

LDgenX acts as a scientific contributor: sampling strategy, analyses and interpretation. The regulatory file, the definition of measures and the assessment of their compliance rest with the project owner and its partners.

The ERC sequence, French Ministry for the Ecological Transition (in French) (opens in a new tab)

Deliverables and support

From sample to interpretation.

The scope is defined with you when the project is scoped: a complete study or a single analysis step.

Discuss your project
  • Design of the protocol and sampling strategy
  • Filtration equipment and sampling support
  • Molecular analyses, sequencing or dPCR
  • Bioinformatics and statistical analyses
  • Mapping and visualisation of the results
  • Decision-support report, with the interpretation of the results

Your project in practice

Shared scoping. A tailored proposal.

Tell us about the context, the site or population studied, the objectives and the existing data. This first conversation scopes the need and the steps of support.

To prepare the first conversation

  • Your objective and the decision it should inform
  • The context: site, environment, species or population studied
  • The samples or data already available
  • Your schedule and field constraints

What we define together

  • The scope of the service
  • The sampling strategy and the analyses
  • How results are reported
  • The schedule and the quote

A concrete example

Reading the biodiversity of ports and estuaries.

A fish survey for the Artois-Picardie Water Agency.

Explore this study

In brief

Client
Artois-Picardie Water Agency
Carried out by
Qualyse, LDgenX and Prelevmar consortium
Environments
Ports and estuaries of the coastline
Approach
Environmental DNA from water samples

Let’s discuss your project

Your question. Our next starting point.

A project in biodiversity, genomics or bioinformatics? Describe your needs to receive a proposal, or book a first conversation with our scientific team.

Or write to us: info@ldgenx.fr