# Co-constructing science with society: monitoring long-term effects of global change on intertidal rocky shores through citizen science

Cam Ly Rintz, Florian Charvolin, Bruno Serranito, Marine Jacquin, Célia Mebarki, Agathe Bouet, Athénaïs Beauvois, Éric Goberville, Anouck Hubert, Arthur Lecerf, et al.

► To cite this version:

Cam Ly Rintz, Florian Charvolin, Bruno Serranito, Marine Jacquin, Célia Mebarki, et al. Co-constructing science with society: monitoring long-term effects of global change on intertidal rocky shores through citizen science. One Ocean Science Congress, Jun 2025, Nice, France. **hal-05135988**

HAL Id: hal-05135988

https://hal.science/hal-05135988v1

Submitted on 30 Jun 2025

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# Co-constructing science with society:
monitoring **long-term effects of global change**
on intertidal rocky shores through **citizen science**

Cam Ly Rintz¹,²,³, Florian Charvolin⁴, Bruno Serranito¹,², Marine Jacquin⁵, Célia Mebarki¹,³, Agathe Bouet²,⁵, Athénaïs Beauvois³,⁴, Éric Goberville¹, Anouck Hubert⁶, Arthur Lecerf⁷, Benoit Fauvet-Messat⁷, Antoine Coiffier⁷, Isabelle Le Viol⁸, Alicia Mansilla Sanchez⁷, Olivier Norvez⁹, Frédéric Ysnel¹,²,¹⁰, Éric Feunteun¹,²,³, Boris Leroy¹

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**BioLit**, a citizen science program to study brown macroalgae and gastropods on French rocky shores

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* Rocky shores are facing anthropogenic pressures like pollution and climate change

* There is a critical need for long-term observational data to monitor global changes of biodiversity

* Rocky shores are easily accessible and deeply rooted in local culture, suitable for citizen science initiatives

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## How can **citizen science** enable long-term monitoring of rocky shores?

**ESPOIRS**, an interdisciplinary project engaging citizens to transform BioLit for monitoring rocky shore responses to pollution and climate change

ecologists associations

volunteers
local professionals

sociologists

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## Co-construction: engaging key stakeholders to define monitoring terms

* Involving citizens at every stage to ensure alignment with societal contexts and concerns

### Which means reconciling various parties...

* ... each with their own knowledge

- Academic ← scientific methods

- Operational ← professional experience

- Local ← personal and generational experience

* ... each with their own norms

Confronting a standardized protocol and normalized practices

<table><tr><td>What</td><td>Observations, metrics, indicators</td></tr><tr><td>How</td><td>Protocol</td></tr><tr><td>When, where</td><td>Sampling design and planning</td></tr><tr><td>Why</td><td>Needs and potential uses</td></tr></table>

3 simultaneous translations of research

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(Callon et al. 2001)

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## PARTICIPATORY INDICATORS

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based on hybridized knowledge and citizen-collected data

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## Citizen empowerment: from participants to drivers of the monitoring effort

* Citizens take ownership of the process and indicators by being involved as designers, data collectors and users

* Automation of the approach: a digital tool for citizens to self-organize sampling and visualize indicator outputs

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Have a look at
the prototype!

### Reference

Callon, M., Lascoumes, P., & Barthe, Y. (2001). Agir dans un monde incertain. Essai sur la démocratie technique (Le Seuil).

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¹ BOREA, MNHN

² Station Marine de Dinard, MNHN

³ CGEL, EPHE-PSL

⁴ Centre Max Weber, CNRS

⁵ Association Planète Mer

⁶ Facilitation et Transitions

⁷ Mosaic, MNHN

⁸ CESCO, MNHN

⁹ PNDB, MNHN

¹⁰ Université de Rennes

### Contact

Cam Ly Rintz, 2nd year PhD

camly.rintz@mnhn.fr

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Pôle National
de Données de Biodiversité

Université
de Rennes

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